CA2125451A1 - Medical suction system - Google Patents
Medical suction systemInfo
- Publication number
- CA2125451A1 CA2125451A1 CA002125451A CA2125451A CA2125451A1 CA 2125451 A1 CA2125451 A1 CA 2125451A1 CA 002125451 A CA002125451 A CA 002125451A CA 2125451 A CA2125451 A CA 2125451A CA 2125451 A1 CA2125451 A1 CA 2125451A1
- Authority
- CA
- Canada
- Prior art keywords
- cleaning
- port
- suction
- cover
- receptacle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/08—Cleaning containers, e.g. tanks
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/60—Containers for suction drainage, adapted to be used with an external suction source
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/60—Containers for suction drainage, adapted to be used with an external suction source
- A61M1/63—Containers for suction drainage, adapted to be used with an external suction source with means for emptying the suction container, e.g. by interrupting suction
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2209/00—Ancillary equipment
- A61M2209/10—Equipment for cleaning
Abstract
ABSTRACT
A medical suction system comprising a medical suction canister used in draining bodily fluid from a patient, and a cleaning station for automatically draining and cleaning the suction canister and for automatically providing a visible indication that the canister has been cleaned.
A medical suction system comprising a medical suction canister used in draining bodily fluid from a patient, and a cleaning station for automatically draining and cleaning the suction canister and for automatically providing a visible indication that the canister has been cleaned.
Description
~12~4~1 ~,"
~D~CAL S~C$ION SYSTE~
~.
FI8LP QEl~H~ Y8NTION
The i~ventlon relates to a medical 2uetlon ~ystem u~ed ln the collectlon of flulda ~uch a8 from a patient during a ~urgical procedure.
~AÇKGROUNQ OF THB INV~NTIO~
Medical suction eystems are used i~ hoepltal envlronment~ and partlcularly durlng varlous surglcal procedures to drain bodily fluid from a patlent. In general, medlcal suction syetems employ a collection or suction caniater and a vacuum source which enables bodlly fluld to be drained from the patlent. Bach canister generally includes a receptacle for holding the bodily fluid, a lld wlth a suction port and a patient port, a ~uctlon condult connecting the suctlon port to a ho~pital vacuum ~ystem, and a patlent condult for conveying the bodlly fluid from the patie~t into the receptacle through the patient port~ When the vacuum ie applied to the suction condult, a negatlve pre~sure gradlent i~ created in the lnterior of the receptacle ~o that the bodily fluld i~ drawn from the patient and into the suction canl~ter via the patient conduit. In order to prevent the bodily fluid from entering and contaminating the hospital vacuum ~y~tem, a ehutoff valve 18 normally used to cloee or block the suction port when the fluid within the canister r~ses to a predetermined level.
s ~ 2~ 51 , , .
Conve~tlonal ~uction canisters are often di~poeabl , which lead~ to increased hospital cost~ for the purchase of new caniaters and lncrea3ed hospital co~ts for the dlsposal of the canlsters and their bodlly fluld conte~ts after u~e. Suctlon canisters can al~o be reu~able. Nowever, ~uch reusable canl~tera must be cleaned by hospltal employees, and the bodlly $1uid collected i~ suctlon canister8 i9 con~ldered hazardous and infectlous waste. In recent years, it has become important in hospital environment~ to eli~i~ate the handlinq and thus reduce employee exposure to bodlly fluids. Currently, hospital~ dl~po~e of such bodily fluid in three way~. The fluid i8 either poured ;~
from the suctisn cani~ter down the bo~pital sink, the fluid 1 i incinerated in a hospltal-owned and operated patholog~cal ?i incinerator, or expen~ive contract~ are negotiated wlth a licensed hauler for the dispo8al of the fluid at an approved hazardous waste incinerator. In every case, hospital employee~
have to handle the bodily fluid. Spattering of the bodlly fluld can result ln ho~pital employees contacting the hazardous ~luid and thus l~creaslng the po8~ibll~ty of contactlng HIV, ~epatlti~
B or other blood borne dleeases.
., .
SUMM~RY 0~ THE INVBNTION
~ The invention providee a cover for an openlng ln a !~ suctlon canl~ter receptacle used in dralning bodlly fluld from a i~ -2-~, .
,:~
212~
patient. The cover lncludes a ~ain body for ~ub~tantlally cover~ng the opening in ~he receptacle. The main body deflne~ a ~uctlon port and a ~uction pa~sageway for connectlon to a vacuum source, a patient port for communicatlon with the patient, and a cleanlng port. The cover al~o include~ mean~ for dl~penslng a clea~lng agent lnto the canl~ter ln responee to the lntroductlon of cleaning fluid lnto the cleanlng port, for opening the patient port in re~pon8e to openlng of the ~uct~on port, for closlng the patient port in re~pon~e to clo~ing of the suct~on port, and treatment mean~ for lntroducin~ a chemical treatment lnto the interior of the receptacle ln response to openlng of the patient port.
The i~ventlon al80 provldes a cleaning ~tation whlch lnclude~ mean~ for automatically drainlng and cleanln~ the ~uction cani~ter. The cleanlng ~tatlon includes upper and lower housing~ with the lower hou~ing 8upporting the suctlon canl~ter.
The upper houaing include~ fir~t and second cleaning probe~ which ? are ln~erted lnto the suction canl~ter ln response to downward movement of the upper houslng. The flr~ probe 1~ ln~erted lnto ~ the ~uction pae~ageway and the ~econd probe 1~ lnserted lnto the "! cleaning port. The probe9 in cooperation with the cover introduce a cleanlng fluid and a cleanlng agent lnto the ~uction canio~er and drain t~e ~uction canl~ter of bodily fluid and cleanlng fluld.
., ., i~ :
;
~ 212~4~
~,, .~".
The lnventlon al80 pro~ides ~ean~ for automatlcally ~, providing a vielble indicatlon that the caniater ha~ been i ~, cleaned. The mean~ lncludes a ~eal that 18 broken and a port~on `.,i ;', of the co~er that 1~ punched out, both ~y insert1on of the probes into the cov~r when the suctio~ canlster is drained and cleaned.
It is one ob~ect of the inventlon to provide a medical ~uction syetem that lnclude~ reusable suction cani~ter ~l receptacles.
It i~ another ob~ect of the invention to prov~de a medical ~uction sy~tem that includes di~posable cover~ for the ,.. .
; reusable ~uction canister receptaclea.
It 18 another ob~ect of the inventlon to provide a ~edlcal ~uction 0ystem ln whlch the dlspo~able cover~ include a moveable cartridge.
'.~! It i~ another ob~ect of the invention to provide a ~uction canister in which the patient port is opened when the ~uction port 1~ opened and i8 clo~ed when the ~uctlon port i~
... .
clo~ed.
another ob~ect of the lnventlon to provide a medical suctlon ay~tem that filter~ the alr belng drawn lnto a ~;~; vacuum source to prevent contamlnatlon of the vacuum source.
It is another ob~ect of the lnvention to provide a ~!
~, medical ~uct~on ~ystem that introduce~ a chemlcal treatment lnto a ~uction canl~ter when the euctlon canlster 18 connected ~o a vacuum source.
. ., .
! l .~'.` .
.
~D~CAL S~C$ION SYSTE~
~.
FI8LP QEl~H~ Y8NTION
The i~ventlon relates to a medical 2uetlon ~ystem u~ed ln the collectlon of flulda ~uch a8 from a patient during a ~urgical procedure.
~AÇKGROUNQ OF THB INV~NTIO~
Medical suction eystems are used i~ hoepltal envlronment~ and partlcularly durlng varlous surglcal procedures to drain bodily fluid from a patlent. In general, medlcal suction syetems employ a collection or suction caniater and a vacuum source which enables bodlly fluld to be drained from the patlent. Bach canister generally includes a receptacle for holding the bodily fluid, a lld wlth a suction port and a patient port, a ~uctlon condult connecting the suctlon port to a ho~pital vacuum ~ystem, and a patlent condult for conveying the bodlly fluid from the patie~t into the receptacle through the patient port~ When the vacuum ie applied to the suction condult, a negatlve pre~sure gradlent i~ created in the lnterior of the receptacle ~o that the bodily fluld i~ drawn from the patient and into the suction canl~ter via the patient conduit. In order to prevent the bodily fluid from entering and contaminating the hospital vacuum ~y~tem, a ehutoff valve 18 normally used to cloee or block the suction port when the fluid within the canister r~ses to a predetermined level.
s ~ 2~ 51 , , .
Conve~tlonal ~uction canisters are often di~poeabl , which lead~ to increased hospital cost~ for the purchase of new caniaters and lncrea3ed hospital co~ts for the dlsposal of the canlsters and their bodlly fluld conte~ts after u~e. Suctlon canisters can al~o be reu~able. Nowever, ~uch reusable canl~tera must be cleaned by hospltal employees, and the bodlly $1uid collected i~ suctlon canister8 i9 con~ldered hazardous and infectlous waste. In recent years, it has become important in hospital environment~ to eli~i~ate the handlinq and thus reduce employee exposure to bodlly fluids. Currently, hospital~ dl~po~e of such bodily fluid in three way~. The fluid i8 either poured ;~
from the suctisn cani~ter down the bo~pital sink, the fluid 1 i incinerated in a hospltal-owned and operated patholog~cal ?i incinerator, or expen~ive contract~ are negotiated wlth a licensed hauler for the dispo8al of the fluid at an approved hazardous waste incinerator. In every case, hospital employee~
have to handle the bodily fluid. Spattering of the bodlly fluld can result ln ho~pital employees contacting the hazardous ~luid and thus l~creaslng the po8~ibll~ty of contactlng HIV, ~epatlti~
B or other blood borne dleeases.
., .
SUMM~RY 0~ THE INVBNTION
~ The invention providee a cover for an openlng ln a !~ suctlon canl~ter receptacle used in dralning bodlly fluld from a i~ -2-~, .
,:~
212~
patient. The cover lncludes a ~ain body for ~ub~tantlally cover~ng the opening in ~he receptacle. The main body deflne~ a ~uctlon port and a ~uction pa~sageway for connectlon to a vacuum source, a patient port for communicatlon with the patient, and a cleanlng port. The cover al~o include~ mean~ for dl~penslng a clea~lng agent lnto the canl~ter ln responee to the lntroductlon of cleaning fluid lnto the cleanlng port, for opening the patient port in re~pon8e to openlng of the ~uct~on port, for closlng the patient port in re~pon~e to clo~ing of the suct~on port, and treatment mean~ for lntroducin~ a chemical treatment lnto the interior of the receptacle ln response to openlng of the patient port.
The i~ventlon al80 provldes a cleaning ~tation whlch lnclude~ mean~ for automatically drainlng and cleanln~ the ~uction cani~ter. The cleanlng ~tatlon includes upper and lower housing~ with the lower hou~ing 8upporting the suctlon canl~ter.
The upper houaing include~ fir~t and second cleaning probe~ which ? are ln~erted lnto the suction canl~ter ln response to downward movement of the upper houslng. The flr~ probe 1~ ln~erted lnto ~ the ~uction pae~ageway and the ~econd probe 1~ lnserted lnto the "! cleaning port. The probe9 in cooperation with the cover introduce a cleanlng fluid and a cleanlng agent lnto the ~uction canio~er and drain t~e ~uction canl~ter of bodily fluid and cleanlng fluld.
., ., i~ :
;
~ 212~4~
~,, .~".
The lnventlon al80 pro~ides ~ean~ for automatlcally ~, providing a vielble indicatlon that the caniater ha~ been i ~, cleaned. The mean~ lncludes a ~eal that 18 broken and a port~on `.,i ;', of the co~er that 1~ punched out, both ~y insert1on of the probes into the cov~r when the suctio~ canlster is drained and cleaned.
It is one ob~ect of the inventlon to provide a medical ~uction syetem that lnclude~ reusable suction cani~ter ~l receptacles.
It i~ another ob~ect of the invention to prov~de a medical ~uction sy~tem that includes di~posable cover~ for the ,.. .
; reusable ~uction canister receptaclea.
It 18 another ob~ect of the inventlon to provide a ~edlcal ~uction 0ystem ln whlch the dlspo~able cover~ include a moveable cartridge.
'.~! It i~ another ob~ect of the invention to provide a ~uction canister in which the patient port is opened when the ~uction port 1~ opened and i8 clo~ed when the ~uctlon port i~
... .
clo~ed.
another ob~ect of the lnventlon to provide a medical suctlon ay~tem that filter~ the alr belng drawn lnto a ~;~; vacuum source to prevent contamlnatlon of the vacuum source.
It is another ob~ect of the lnvention to provide a ~!
~, medical ~uct~on ~ystem that introduce~ a chemlcal treatment lnto a ~uction canl~ter when the euctlon canlster 18 connected ~o a vacuum source.
. ., .
! l .~'.` .
.
2 ~
~E~I39 It 1B another ob~ect of the i~vent~on ~o provlde a medical ~uction eyetem that include0 a cleanlng etation whlch draln~ and dieposes of the bodily flul~ held in a suction canlster and then cleans the cani~er without hospital pereonnel contacting the bodily fluid held therein.
It 19 another ob~ect of the lnvention to provlde a medical cuction eystem that utillzee a cleaning instrument to drain and clean a suctlon can~ster.
It i8 another ob~eet of the invention to provide a medical euctlon syetem that provldes a vislble indication that a suction canlster receptacle ha~ been drained and cleaned.
It le another ob~ect of the lnvention to provide a ~ medical euction system that diepensee a cleaning agent into a `i ~uction canlster in responee to the introduction of a cleanlng fluid i~to the can$eter.
Other feature~ and advantage~ of the inventlon will ~ become apparent to those of ordinary skill in the art upon revlew '~ of the following detailed de~cription, claime, and drawinge.
il ~IBP~ RLP~LQ~LoY THB PRAWINGS
~ ig. 1 le a perepec~ive view of a euction canieter embodylng the invention;
Fig. 2 ie a bottom vlew of the suction canister;
~ ~ig. 3 18 a top perepective view of the main body of 1 the 8uction cani~ter cover;
., ~i2~
~E~0139 ~ig. 4 i8 a botto~ per~pective view of the maln body;
Pig. S i~ a top plan view of the main body;
Fig. 6 1~ a bottom plan view of the maln body;
Fl~. 7 1~ a top perQpective view of the cartridge of the suctlon cani~ter cover;
Fig. 8 is a top plan view of the cartridge;
~ ig. 9 i8 a bottom plan view of the cartridge;
~ ig. 10 18 a sectlonal vlew of the suctlon cani~ter cover taken along line 10-10 ln ~lg. 3 with the cartrldge ln the open positlon;
Pi~. 11 is a vlew ~lmilar to Fig. 10 ~howing the cartridge ln the closed position;
~ lg. 12 i8 a partial ~ectional view ~aken along line 12-12 of Yig. 3 with the cartridge in the open positlon;
~ ig. 13 i9 a view ~imilar to Fig. 12 showing the cartridge in the cloaed po~itlon;
Flg. 14 i~ a perspect~ve vlew of the key;
Fig. 15 is a bottom plan view of the key;
Pi~. 16 la a per~pective view of the cleaning ~tation ~; .
j~ of the medlcal ~uctlon aystem;
Pig. 17 i~ a partial ~ectional view of a ~uction ~ canister ~upported by the cleaning statlon with a fir~t probe of ,i the cleaning ~tation in~erted in the cani~ter;
Pig. 18 1~ a sectlonal vlew taken along ll~e 18-18 in ., Fig. 17;
.~
.
21 25~51 ~E~D13~
Flg. 19 1~ a fro~t elevatlonal vlew, partlally broken away, of ~he cleanlng etat~on; a~d Ylg. 20 is a left ~ide elevational vie~, partially broke~ away, of the clean~ng etatlo~.
~ efore one embod~ment of the invention is explalned ln detall, lt 19 to be under~tood that the invention i8 not limi~ed in its application to the detail~ of construction and the arrangement of components eet forth ln the followlng description ,~j or illu~trated in the drawlnga. The invention is capable of other embodimentc and of being practiced or being carrled out i~
,....
varlous waye. Aleo, it is to ~e understood that the phraseology and terminology u0ed hereln le for the purpo~e of descript~on and should not be regarded a~ l~mitlng.
.~ .
~, ~e~errlng now to the drawings in which llke reference ; numeral~ refer to like part~ throughout the views, there i~ ~hown ,j a medical suction ~yatem 10 embodying the invention. The syetem 10 comprlses (~ee ~ig. 1) a suctlon canlster 14 whlch include~ a receptacle 18 and a di~posable cover 22. Ihe receptacle 18 18 ~ closed excep~ ~or an openlng or receptacle port 26 at the top, `~, the receptacle port 26 being defined by an annular receptacle port wall 30 (~ . 10 and 11~. In the preferred embodiment, the r `~ receptacle 18 i8 manufactured of clear unbreakable plastlc wlth a ,.~
~: - 7-`:' .~, . -. `
. , .
212~51 .~"~~otal volume capacity of 4000cc of fluid. The receptacle can be manufactured a0 one integral piece or as two pleces, a top por~ion and a bottom portion, that are fixed tosether by ~onic - welding or other ~ultable means. ~8 best shown ln Figs. 1 and 2, the receptacle ha8 0~ lt~ lower ~urface 32 four generally ,~
radlal~y extendlng pro~ectlons 34, 36, 38, 40 that do not hold fluid. The lnner end~ of the four pro~ect~ons 34, 36, 3~, 40 define a recess 42 ln the lower ~urface 32. The receptacle 18 also define~ a critlcal measure area 46 located at the bottom-mo~t portion of the receptacle interior. The critical mea~ure area 46 i8 of V-~haped cros~-~ectlon at it~ lower-most end and extends across the receptacle 18. On the suter surface 50 of the receptacle 18 are gradation linee 54 that correspond to various fluid volume levels. A~ the suction canister receptacle 1~
begins to fill with fluld, the cr~tical mea~ure area 46 enables the reading of very small fluid quantities using the gradatlon lines 54.
The cover 22 close~ the receptacle port 26, thus sealing the interior of the ~uction cani~ter 14. Referring to Figs. 3 through 6, the cover 22 lncludes a main body 58 having a top wall 62. A weakened portio~ 66 of the top wall 62 deflne~ a cleaning port cover 70 that can be punched out to define a cleaning port 74 ~ig. 1~) in the top wall 62. An annular patient port wall 78 extend3 upwardly and downwardly from the top wall 62 and define~ a patient port 82 and a fluid pa~ageway 86 2125~51 ~E~OI
(~lg~. 10 and 11) extendl~g upwardly from the patlent por~ 82.
Further, a~ ~hown in ~ig2. 4 and 6, a ~top member 88 pro~ect~
outwardly from the portlon of the patient port wall 78 ~hat extends downwardly from the top wall 62.
To enable communlcatlo~ between the patient and the .. patie~t port 82, one end of a patient conduit 94 i8 af~lxed to ` the cover 22 by forcing the patient condult 94 over the patlent por~ ~all 7~ a~ depicted ln ~ . 10 and 11. The flula pas~ageway 86 thu~ communicate~ wlth the patient conduit 94. The other end of the patlent conduit 94 commNnlcate~ with the patlent ; (not shown).
~ As best ~hown ln ~iy8. 3 and 4, a boss 102 extends ; upwardly from the top wall 62 and deflne~ a downwardly opening treatment chamber 106. The treatment chamber 106 hold3 a chemlcal treatment 110 (Flg. 11). In the preferred embodiment, the chemical treatment i8 an antl-foaming and an~i-coasulating agen~ ~uch a~ c~trlc acld ln the form of a tablet. ~owever, it ehould be appreciated that the chemical treatment 110 can be any type of chemlcal uYed to treat the bodily fluid whlle the fluld eld ln the receptacle 18.
Referring to Fig~. 3 through 6, the main body 58 also lncludes an annular sidewall 114 extending from the periphery of the top wall 62. The sidewall 114 lnclude~ an outwardly ' extending annular flange 118. The eidewall 114 defines an i annular recess 122 as be~t seen ln Pigs. 4 and 6. To ~ecure the g , ., . _ 2~ 2~451 ~".
cover 22 to the receptacle 18, t~e receptacle port wall 30 i8 po~itloned in the rece~ ~22 such that the flange 118 rest~ on the receptacle 18 as ehown on Plg~. lO and 11. Preferably, a friction fl~ ~ecures the receptacle port wall 30 ln the reces~
122. Alternatively, the cover 22 could thread onto the receptacle port wall 30 or could be connected thereto by other means .
As best ~een in Fig~. 4 and 6, an annular ~ocket wall 126 depends from the underside of the top wall 62. Ihe ~ocket wall 126 define~ four spaced locklng tab~ 12B, 129, 130, 131.
The lower end of each locking tab has thereon a radially lnwardly extending l~p 132.
Referrlng to Pig~. 3 and 4, ~he main body 58 al~o defines a suction passageway 140 having a longitudinal axis 144.
~ The Huction passageway 140 i~ connectable with a ho~pl~al vacuum A sy~tem via a suction conduit 14~ ~Figs. 1, 10 and 11), a~ will be , explalned later. The ~uction pa~ageway 140 i~ cen~rally located , wlthln t~e main body 58 and has an upper end surrounded by a J horizontal annular wall 152. The horizontal wall 152 i~
connected to the top wall 62 by an lnterlor annular wall 156 that depends from the top wall 62. The horizontal wall 152 extend~
radially inwardly from the lower end of the interior wall 56.
Further, an annular ~uctlon port wall 160 depends from the inner radial edge of the horizontal wall 152 and further define~ the suction pas~ageway 140. The lower end of the suction port wall .. . .
212~451 ~e~D139 ~160 haa therein a ~otch defin~ng a auction port 172 communlcatlng wlth the lower end of the ~uctlon paRsageway 140.
A~ best seen in Figs. 3 and 5, the horlzontal wall 152 and the suction port wall 160 cooperate to define an arcuate notch 176, a~d the interior wall 156, the horlzontal wall 152 and the suctlon port wall 160 cooperate to defi~e a key holder ~ocket 180 in the top of the maln body 58. Further, as best seen ln Pigs. 4 and 6, the undereide of the top wall 62, the underside of the horizontal wall 152 and the socket wall 126 define a cartrldge socket 184 ln the underslde of the maln body 58.
Referring now to Fig~. 7 through 9, the cover 22 al~o includes mean~ for dlspenslng a cleaning agent into the ~ receptacle ln re~pon~e to the lntroduction of a cleaning fluid I into the clean~ng port 74, mean~ for openlng the patlent port 82 ~ in re~pon~e to openlng of the ~uction port 172 and for clo~ing ¦ the patient port in response to cloHlng of the suction port 172, meana for introducing a chemical treatment into the in~erlor of the receptacle 18 in response to the opening of the patient port ~J ~2, and meane for ~llterlng air drawn through the ~uctlon port 3 140 when the ~uction port $e connected to the vacuum ~ource. All of the foregoing mean~ include a cartrldge 188 supported by the main body 58 for plvotal movement relatlve thereto about the axi8 144 of the suction pae~ageway 140 and between an open po~ltlon (~ig~. 10 and 12) and a clo~ed positlo~ (Yigs. 11 and 13). More epeciflcally, t~e car~rldge 188 1~ located ln the cartrldge :
~ :
212~51 socket 184. Tbe llp 132 of each loc~ing tab 128, 129, 130, 131 exten~s beneath the lower end of the cartr~dge 1~8 to retaln the cartrldge ln the cartrldge ~ocket 1~4 ~igs. 10 and 11).
As beet seen ln ~1~8. 7 through 9, the cartridge 188 .. includes an annular top wall 192 havlng thereln an aperture 196 for communicatlon wlth the interior of the suctlon canister 14 and for selectiYe communlcatlon with the treatment chamber 106.
ri( When the aperture 196 1~ aligned with the treatment chamber 106, ~ he chemical treat~ent 110 drops lnto the receptacle 18 (~ig.
., 10). The aperture 196 i8 aligned wlth the treatment ch~mber 106 E when the cartridqe lsa 18 ln the open po~itlon, as shown ln g Ylg. 10, and 18 not allgned wlth the treatment chamber 106 when the cartridge 188 i8 in the clo~ed poeltion, as ~hown in ~ig. 11.
The top wall 192 al80 ha~ therein (see ~ig~. 7-9, 12 and 13) an arcuate inlet 200 whlch communicates ~lth the lnterlor of the receptacle 18 and which selectlvely commNnlcate~ with the patie~t port 82. A first end-wall 204 depends from the top wall 192 and de~ines one end of the inlet 200. The top wall 192 .. lncludee a recee~ed ramp portion 212 that defines the other e~d . 216 o~ the inlet 200. As ~hown ln Yig~. 12 an~ 13, the ramp portion 212 conalst~ o~ a vertical ~egment 220, a horlzontal . ~egment 224, and a ramp segment 228 that tenminates in a second .. ; end wall 232. A~ ehown in Plg. 13, the horizontal eegment 224 tightly engage~ the lower end of the wall 78 and clo~ee the pa~ient port ~2 when the cartridge 188 i8 in the clo~ed po~itlon.
~;
,:
. ~
:j `- - 212~
The tight engagement between the hor~zontal ~egment 224 and the wall 7~ ~ubstantlally seals the patlent port 82. The patlent port B2 le aligned with the lnlet 200 when the cartridge 188 1 in t~e open po~ltion, a~ 3hown in ~ig. 12. The bottom of the patlent port wall 78 move~ up the ramp ~egment 228 to the horizontal eegmen~ 224 when the cartrldge 18~ moYe- rG~ the open po~ition to the clo~ed position. -A~ depicted ln ~lg~. 7-11, the cartridge 188 also deflnes an annular cleanlng chamber 236 which communlcates wlth the cleanlng port 74 and conta~ ne a cleaning agent . The cleaning agent can be any ~uitable chemlcal or combination of chemicale, such ae a detergent, that aids i~ clean~ng the interior of the ~uction cani~ter 14. The cleaning chamber 236 1~ deflned by a flr~t annular inner wall 244, a bottom wall 248 and an outer wall 252. The ln~r wall 2~4 depends from the perlphery of the top wall 192, the bottom wall 248 extend3 radlally outwardly from the lower portlon of the lnner wall 244, and the outer wall 252 extend~ upwardly from the ~ottom wall 248. The top of the cleanln~ chamber 236 1~ closed by the top wall 62 of the maln body 5~. The cartrldge 188 ~1BO de~lne~ a cleaning chamber outle~ ln the fonm of a plurallty of ~paced outlet~ 256 ln the bottom wall 248 that allow the cleanln~ agent to flow lnto the interior of the receptacle 18 ln reepon~e to the ~ntroductlo~ of a cleaning fluid lnto the cleanlng port 74. The cleaning of the ,i .
., 212~
.~,39 suctlon canieter wlll be dlscu~sed in greater detail ln a later section.
Continuing ~o refer to ~ig8. 7-11, the cartridge 188 has a second annular inner wall 264 depending from the i~ner periphery of the top wall 192. The second lnner wall 264 16 conce~tric wlth and radially inward of the fir~t inne~ wall 244.
The inlet 200 of ~he cartridge 188 1~ thus deflned more ~pecifically by the flrst and second end wall~ 204 and 232, respectively, and by portions of the first and second inner walls 244 and 264, reepectively. Bxte~dlng radlally inwardly and horizontally from ~he second lnner wall 264 is a horizontal annular wall 268, and depending ~rom the inner edge of the wall 268 1~ a ~hird annular inner wall 272. The wall 272 i8 concentrlc with the wall~ 244, 264 and 18 the most inward of these three walls. The lower end of the wall 272 i8 closed by a removable member or eeal 280 having thereon score llnes 284. The wall 272 al~o has therein a rece~e 288 (~ee Flgs. 8 and lO).
Referrlng to ~igs. 9-11, the underside of the wall 268 and the walls 264, 272 de~lne a fllter pa~eageway or filter chamber 292. Wlthln the ~llter paeeageway 292 are rlbe 296 (Flg.
9) extending radially lnwardly and outwardly frcm the wall~ 264, 272. The wall 272 has thereln a fllter passageway outlet 300.
As chown ln ~lg. 10, the fllter passa~eway outlet 300 ~1com~Nnicates wlth the suctlon port 172 and thus w~th the ~uctlon passageway ~40 when the cartrldge 188 1~ ln the open po~ltlon ,1 :
, -14-, .
~12~4~
.~, t~lg. 10). The filter pas~ageway 292 i8 closed by the ~uctlon port wall 160 whe~ ~he cartrldge 18~ 1~ ln the closed po~ltion (Yig. 11). The annular area between the lower-most por~lons of the wall~ 264, 272 defines a fllter passageway inlet 304. A
sui~able filter 308 ~igR. 10 and 11) 18 located in the lnlet 304 and i9 ~upported by the rlb~ 296. The fllter 308 prevent~ alr flowing from the lnterlor of the receptacle 18 to the ~acuum aource from contaminating the vacuum source. The fllter 308 can, if desired, be hydrophoblc.
Referring to Pig~. 10 and 1~, the cartridge 188 i~
po~itloned in the cartridge socket 1~4 such that the wall 272 surrounds the suction port wall 160 of the main body 5B, the wall 268 is ad~acent the horlzontal wall 152 of the mai~ bo~y 58, the top wall 192 1~ ad~acent the top wall 62 of the main body 58, the seal 280 clo~ee the lower end of the suctlon pa~sageway ~40, and the rece~ 288 18 vislble withln the arcuate notch 176 of the main body 58.
In the open po~ition as shown in ~ig. 10, the cartridge 1~8 i8 posltioned ln the cartrldge ~ocket 184 such that the aperture 196 1~ in al~gnment with the treatment chamber 106, the filter paasageway outlet 300 18 in alignment with the suctio~
port 172, and the cartrldge ~nlet 200 i8 in allgnment with the patient port 82 and the fluid pa~ageway 86. In the clo~ed poBition a~ ~hown in Pig. 11, the cartridge lB8 i8 po~itioned in the cartridge ~ocket 1~4 ~uch that the aperture 196 i~ out of -~5-.' 212a451 alignment with the treatment chamber 106, the filter passageway outlet 300 1~ out o~ allgnmene with the suction port 172, and the cartridge inlet 200 1~ out o~ allgnment wlth the patlent port 82 and the fluid pas~ageway 86.
The movement of the cartridge lB8 relative to the ma~n body 58 between the ope~ and clo8ed poeition~ is llmited i~ the counterclockwlse dlrectlon ~a8 seen from above) by the ~top member 88 contacting the fir~t end wall 204 of the cartridge 188 (Flg. 12). The movement of the cartridge 188 relat$ve to the main body S8 i~ llmited 1~ the clockwise directlon (as ~een from above) by the lower portion of the patient port wall 78 contacting the vertical ~egment 220 of the ramp portion 212 of the cartridge 188 ~Fig. 13). The cartridge 18~ thu~ ha8 a limited range of motion relative to the main body 58. In the preferred embodlment, that range of motlon is 4S degreee between the two po~itions.
Referring to Pig~. 10, ~1, 14 and 15, to rotate the cartridge 188 relative to the main body 58 between the open and closed po~itione, the medlcal 8uction system lO utilizes a key 320 communlcatlng wlth one end of the ~uctlon conduit 14B. Thie other end of the ~uctlon condult 148 communicate~ wlth the hospital vacuum sy~tem (not ~hown). The key 320 ha~ a longitudlnal axle 332 and define~ an air passageway 336 ~Figs. 10 and 11). The key 320 lnclude~ a maln portion 340, an upper annular portion 344, a lower cylindrlcal portion 348, a turning , .
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: :
212~4~1 tab 352 extendlng upwardly from the ~a~n portlon 340 and outwardly from the upper portlon 344, and a pro~ectio~ 356 extendlng dow~wardly from the maln portlon 3~0 and outwardly fro~
the cylindrical portio~ 348. ~he maln portlon 340 ha~ a , . cylindrlcal outer eurface 360 havlng therein a groove housing a~
,' annular seallng or o-ring 364. The upper portlon 344 exten~s upwardly from the main portlon 340 and 1~ centered on the longltudinal ~xl~ 332 of the key 320. The air pas~ageway 336 extends from the upper end of the upper portion 344, through the main portion 340 and into the cyllndrical portion 348. The lower portlon 348 of the key 320 depend8 frQm the main portion 340 and ;~ 18 centered on the longltudlnal axl8 332 of the key. The lower '. portion 348 has therein a key lnlet 36B whlch communicates wlth the air pas~ageway 336. To connect the suctlon conduit 148 to ~, the key 320 and to the air paB8ageway 336, the end of the condult ~3 148 18 forced over the upper portlon 344 (~lg~. 10 and 11). me turn~ng tab 352 facllltate8 rotatlon of the key 320 about lts .i' longitudlnal axl8 332.
.' The rotatlon of the cartrldge 18~ relatlve to the cover 22 18 accompli~hed a8 follows with reference to ~lgs. 10 and 11.
Assuming the cartridge 1~8 i8 ln the closed position (Plg. ll), the key 320 le ln8erted into the key holder socket 180 of the ~ cover 22 ~uch that the pro~ection 356 on the key 320 extends i.~, through the arcuate notch 176 ln the maln body 58 and lnto the ~ recee~ 28~ 1~ the cartridge ~. Tn this positlon, the lower .,;
~ -17-.:
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212a4~1 portion ~48 of the key 320 fllls the ~uctlon passageway 140, the main portlon 340 rests ag~ln~t ~he wall lS6, and the O-rlng 364 ~eallngly engage~ the wall 156 to prevent fluid leaks. To rotate the cartridge 188 to the open position (~lg. 10), the turning tab 352 of the key 320 1B grippe~ and the key 320 18 turned 45 ; degrees (counterclockwl6e ae viewed from above) untll movement ls inhlbited. The engagement of the pro~ection 356 of the ~ey 320 wit~ the rece~ 28a in the cartrld~e 188 cau~e~ movement of the cartridge 188 relative to the main body 58 when the key 320 ia rotated about its longitudlnal aX18 332. To return the cartridge 188 to the clo~ed posl~ion, the key 320 i~ rotated clockwise 45 degree~ untll the movement i8 inhiblted.
The operation of the ~edlcal suction sy~tem 10 in it~
flu~d collectlon capacity i~ a~ follows. A clean or unused cover 22 iq attached to 2 clean ~uction canister receptacle 18 with the cartrldge 188 ln the closed posltlon relatlve to the maln body . 58. One end of the patient condult 94 ie connected to the patlent port wall 78 of the co~er 22 to allow communicatlon between the patlent port 82 and the ~atlent condult 94. The other end of the patlent condu~t 94 communlcates with the patlent. The key 320 19 connected to one end of the euctlon conduit 148 to enable communlcation between the air pasaageway `l 336 of the key 320 and the euctlon condult 148. The other end of the suctlon condult 148 18 connected to the hospital vacuum ; system. The key 320 1~ then placed into the key holder ~ocket .~ .
, 212~51 .~".
180 and the cartrldge 1~ rotated to the open posltlon. When ehe cartridge 188 i~ moved to the open po~itlon, the treatment chamber 106 and the aperture 196 move lnto allgnment ~o that the chemical treat~ent 110 that wa~ hou~ed ln the treatment chamber 106 ~all~ into the interior of the receptacle 18 as ~hown ln ~lg.
10. In the open posltlon, alr fro~ the lnterlor of the receptacle 1~ travel~ throu~h the fllter passageway inlet 30~, through the filter 309, through the filter pa~sageway 292 and lt~
outlet 300, through the ~uctlon port 172, through the key lnlet 368, along the air pasaageway 336 of the key 320, and then through the ~uctlon conduit 148 to the hoepital vacuum ~yetem.
This creates a vacuum i~ the receptacle 18. As a result of the vacuum ln the receptacle 18, fluid from the patlent travels through the patient conduit 94, through the fluld pas~ageway 86 and the patient port 82 of the main body 58, and then ~hrough the inlet 200 ln the cartr~dge 18~ to the interior of the receptacle 18.
When ~luld collection 19 no longer desired or the suctlon canlster 14 1~ fllled wlth bodlly fluid, ehe key 320 iB ~:
rotated to return the cartrldge 188 to the clo~ed posltion. Thl~
clo~e~ both ~he filter pa~sageway outlet 300 and the fluld passageway 86, thereby atopping fluld flow through the patlent condult 94. The key 320 ie then removed from the key holder ~ockee 180. ~he ~uction canl~ter 14 i~ then ready to be dralned and cleaned as will now be de~cribed.
.~, 2~2~
Turnlng to Fig. 16, the med~cal suction sy~tem 10 alao comprises a cleanlng etatlon 400 whlch lnclude~ means for automatically dral~lng and cleanlng the ~uction canister 14 wlthout a hospltal employee contactlng the hazardou~ and lnfectious bodlly fluid contalned therein. The cleanlng etatlon lnclude~ a lower hou~lng 404 comprl~lng a cabinet 40B wlth a~
upper ~urface 412. The upper surface 412 haa thereon flr~t and second cradle~ 416 and 420, re~pectively, for supporting rlght and left suction canisters 14A and 14~. Each cradle 416, 420 i8 deflned by (eee Fig. 16) a reces~ 432 which i9 3ubstantially the same size a~ the bottom-most portlon of a ~uctlon canister 14. A
, ~, ~tub 436 extends upwardly from the center of the reces~ 432 and has thereln four V-shaped ~otcbes 440, 441, 442, 443. To orient a ~uction canister 14 relative to the clean~ng statioA 400, the suction canister 14 i~ placed into the recess 432 such that the .~
;~ inner end~ of the four pro~ections 34, 36, 38 and 40 are re~pectively recei~ed ln the four notches 440, 441, 442, 443 and the stub 436 i~ received i~ the receptacle reces~ 42. The notc~e~ 440, 441, 442, 443 and the receptacle pro~ections 34, 35, 36, 37 are arranged 80 that the ~uctio~ canlster 14 mN~t be oriented with the front face 32 forward in order to locate the bottom of the ~uctlon canlster 14 ln the rece~s 42. Plg. 19 depicts both euctlon canl~tere 14A, 14~ oriented relatlve to the . cleaning statlon 400. Ihug, the cradle~ 416, 420 and the suction .i~ canlsters 14A, 14B comprl~e i~terengaging mean~ for orlentlng the ~ -20-..
!.
;~' 212~4~1 Ui~0139 suctlon canisters 1~ 4a relative to the cleanl~g statlon 400.
~he cabinet 408 further lncludes a drawer 44~, and an attached waete cont21ner 452 (ehown only ln ~ig. 163. Door~ 454 afford access to the interior of the cabinet 408.
Contlnulng to refer to ~lg. 16, the lower houslng 404 t also comprlses apaced-apart, rlght and left ~upport poat~ 456 a~d 460, respectlvely, extendi~g upwardly from the ~pper æurface 412 of the cablnet 40~. Bach poat 456, 460 has thereon a holdlng bracket 464 which 1~ plvotable from an upwardly pro~ecting poeition a~ ~hown on the ri~ht po~t 456 to a horizontally i pro~ecting positlon a~ shown on the left po~t 460. A control pa~el 468 extends betwee~ tha posts 456, 460. The control panel 468 include~ a controller 472 ~uch as a suitably programmed ~ m~croprocessor. m e panel 468 also include~ operational buttons 3 ~uch as a S~ART button 477, ~tatua indicators (prefera~ly conventlonal L~D displays) and a deadman swltch 480, all of wh$ch ~ . are connected to the controller 472.
¦ The cleanlng statlon 400 further lnclude~ a right upper houslng 484 moveable vertlcally relatlve to the right post 456 and a left upper housl~g 488 moveable vertlcally relatlve to the left poat 460. The movement of each upper hou~lng i8 cau~ed by a hydraul.ic assembly 490 withln the asaociated support post 456 or 460. Only the hydraulic assembly 490 ln the left post 460 le ~hown (see Flg. 20). The upper hou~lng~ 484, 488 extend forwardly from their re2pective po9t3 456, 460. Bach upper , -21-~:s ., . .
2~2~
e~01~9 ,, housing ~84, 488 ha~ depending therefr~m, ad~acent the orward end thereof, a f ir8t cleanlng probe 492. As show~ ln ~lgs. 17 and 18, the probe 492 i~cludes an lnner condult 496 and an outer conduit 500. The ~nner condult 496 communicates wlth a vacuum source and has an opening 504 (Plg. 17) i~ it~ lower end. The outer conduit 500 3urrounds ths lnner condu~t 496, commNnicate~
wlth a eource of cleanlng fluld, a~d hae thereln a plurallty o outlet openlnge 508 spaced along it~ length. The outlete 502 are elanted upwardly near the top of the outer condui~ 500 and downwardly near the bottom.
Referrlng to Pl~. 16 and 18, each upper houslng 484, , 488 also hae depending therefrom, at a point ~paced laterally Si from the first probe 492, a ~econd cleaning probe 512. The eeco~d pro~e 512 include~ a ~ingle condul~ 516 with a flharp or pointed lower end ~aving therein an openlng 524. The condult 516 communlcatee with the outer conduit 500 of the fir~ probe 492 via a horlz~ntal conduit 528. The probes 492 and 512 move vertically w~th the upper housing~ 484, 488.
A~ ehown ln ~lg8. 19 and 20, the cleaning etation 400 aleo includee, lnelde the lower hou~l~g 404, right and left suctlon conduite 532 and 536, respectively. The upper e~d of the conduit 532 communicate~ wlth the inner condult 496 of the right upper houeing 4~4, and the upper end of the condult 536 communlcatee with the inner conduit 496 of the left upper hou~lng 488. The lower ende of the conduits 532, 536 are eelectlvely . -22-`~
>
212~
.~"9 connectable to a vacuum ~ource a~ described below. Th~ cleanln~
station 400 al~o lncludes right and left water supply conduit~
556 and 560, re~pectlvely. The upper end of the conduit 55 communicate~ with the outer condult 500 of the rlght upper housing 4~4, and the upper end of the conduit 560 commNnicates wlth the outer condult 500 of the left upper houslng 48~. The lower ends of the conduits 556, 560 are selectivaly connectable to a source of cleanlng fluid ae will be descrlbed below. In the preferred embod~ment, the cleaning fluld utlllzed ls water.
Referring agaln to ~lg8. 19 and 20, the cleanlng station 400 al~o lncludes, in the lower housing 404, a water supply reservolr 580 communlcatlng wlth the hospltal water supply via a first water supply llne 584. The lower housing 404 also includes a water supply pump 58~ connected to the water reservoir 580 by a second water ~upply llne 592. The water supply pump 558 communlcates wlth a water ~upply valve 596 via a third water supply line 600. The valve 596 cQmmunlcates wlth the lower ends of the water eupply condults 556, 560. The water supply valve 596 dl~erts the water ln the thlrd supply llne 600 to either the rlght water supply conduit 556 or the left water supply conduit 560 depending upon which,of the two ~uction canisters 14A and 14 ls belng cleaned and dra$ned.
To create the negative pressure gradlent that enables draining of a suction canis~er, the cleaning statlon 400 lnclude~
draln pump 604 ehow~ ln Plg8- 19 and 20. The draln pump 604 . ~
~ -23-.;
, ,, -- 2~25451 communicate~ with the ho~pltal 8ewer ~ystem via ~ flr~t drai~
l~ne 608. The drain pump 604 aleo communicates with the water re~ervoir 580 vla an overflow ~tandplpe 612. If the volume of water ln the water re~ervoir 580 exceeda a predetermlned volume, the excesa water will flow through the ~tandpipe 612 aDd l~to the drain pump 604 to be dl~charged into t~e ho~pital sewer vla the first draia line 60~. AB ~how~ in Ylg. 19, a vacuum Yalve 616 communicate~ with the draln pump 604 via a ~econd drain llne 620.
The lower end~ o~ the right and left ~uction conduits 532, 536 communicate with the vacuum val~e 616. The vacuum valve 616 ~electlvely connect~ elther of the rlght and left suctio~
conduit~ 532, 536 to the drain pump 604 Yia the second draln line 620. The ~econd draln line 620 ha~ therein a~ l~-llne aeneor 624 that determine~ when fluld is no lo~ger dralnin~ from a suction cani~ter.
~ hen a euctlon canister containing bodily fluid needs to be drai~ed and cleaned, the ~uctlon canl~ter 14 1~ oriented on one o~ the cradles 416, 42Q of the cleanlng ~tatlon 400 as prevlou~ly described. Although the cleaning ~tation 400 has the capabllity o~ Bupportlng two 8uctlon canleter~ 14A, 14~ on the lower hou~i~g 404, o~ly one ~uctlon canlster 14 can be dralned and clea~ed at a tlme. A~ter orient~ng the suctlon canieter 14 on either cradle 416 or 420, the operator manually pivot8 the corre~pond~ng holdl~g bracket 464 or 466 downwardly untll the bracket contact~ the suction cani8ter 14. The operator then .
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.~,~
depre3ses the START button 477 to lnitiate a timed dralnlng and cleanln~ cycle. If the holding bracket 464 or ~66 has not been plvoted downwardly onto the ~uctlon canl~ter 14, the controller 472 will not i~itiate the drainlng and clea~ing cycle even ~f the START button 477 iB depre88e~. ~y checklng the po~ltlon~ of the hold~ng bracket~ 464, 466 on the rlght and left posts ~56, ~0, t~e controller 472 dsterm~ne~ which of the cradles 416, 420 haB
~uction cani~ter thereon or if ~oth cradles 416, 420 have a suction canister thereon. If both cradles 416, ~20 have a ~uction canl~ter thereon, the ~ontrollar 472 will lnltlate t~e cleaning and draining of the left suction can~ster 14B first. If only one of the cradles 416 or 420 has a suction canister thereon ~ :
with the holdlng ~racket 464 or 466 pivoted downwardly, then the co~troller 472 wlll inltlat~ the cleaning and draining cycle of that particular ~uctlon canister.
If the rlght suctlon cani~ter 14A i8 to be drained and cleaned, the controller 472 sends a ~ignal to the water supply va~ve 596 to provide commNnication between the right water ~upply conduit 556 an~ the thlrd water supply li~e 600. The controller 472 al~o send~ a ~ignal to the vacuum valve 616 to provlde ~ commNnication between the rlght suction line 532 and the second drain line 620. Slmllarly, if the left euction canlster 14~ 19 to be cleaned and dralned, the controller 472 sends a ~lgnal to the water supply valve 596 to provlde communlcatlon between the i left water supply condult 560 and the thlrd water supply llne ,, , -25-. .
,.
.i.,. ..... , ...... , ~ ,. . , .. -. . .- . .
: . . .. .. .. . . ~ - . . ~ . .
21254~1 .~
600. The controller aleo send~ ~ s~gnal to the vacuum valve 616 to provlde commN~lcatlon between the left ~uction condult 536 a~d :. the ~econd draln llne 620. Hereafter, it wlll be assumed that the left suctlon cani~ter 14~ 1~ belng dralned and cleaned as represented by Plg. 20.
Referring to ~lga. 18 and 20, the controller 472 sends ~1 a ~ignal to the left hydraulic assembly 490 which cau~es the left ,j upper housing 488 to move downwardly relative to the lower housing 404. As the left upper hou~ing 4~ is lowered, the fir~t probe 492 also mo~e~ downwardly and 18 lnserted lnto the left 3uction canl~ter 14B through the euction passageway 140. A~ the . probe 492 move~ downwardly throu~h the ~uction pa~sageway 140, ~ the prohe 492 contact~ the ~eal 280 on the cartrldge 188.
ii Furt~er downward mo~ement cau~es the probe 492 to break the seal 2ao away from the cartridge. The ~eal 280 thus cQmprisee a means for providing a visual lndlcatlon that a suction canister has been cleane~ and more partlcularly that a ~leaning instrument or probe has been inserted into the suctio~ passa~eway. The probe 492 act~ a~ a mean~ for alterl~g the suction canlster 14B ln re~pon~e to cleanln~ the~eof.
'~. A~ter the seal 280 ha~ been ~ro~en, the controller 472 i~ cont~nues to cauee the downward movement of the left upper ~ hou~i~g 48~ and the probe 492 untll the left upper houslng 4 ,,~
contacts the cover 22 of the ~uctlon caDl~ter 14B. The probe 492 ~1 now extend~ into the interior of the euctlon cani~ter 14B.
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. -26-. .
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21 25~51 ~9139 Slmultaneou~ly ~ the flr~t probe 492 i~ lowered, the second probe 512 iB al~o lowered. Downward movement of the left upper hou~lng ~ cauees the probe 512 to contact the cleaning port cover 70. Further downward movement of the left upper housing 489 cau~e~ the probe 512 to punch out the cleanlng port cover 70 from the top wall 62 of the cover 22, allowing the probe 512 to pa~ through the cleaning port 74. The cleanlng port cover 70 thus al80 actY a~ a means for provldlng a vlslble indication that a cleaning fluld ha~ been introduced into the cleanlng port. The probe 512 act0 as a means for alterlng the ~uctlon cani~ter ln re~pon~e to cleaning thereof. When the downward movement of the left upper houslng 488 cea~es, the probe 512 18 positloned in the cleaning chamber 236 of the cover 22 as deplcted ln Flg. 18.
~ fter the flr~t and ~econd probes 492, 512 are ln the~e positions, the cleaning and dralnlng of the auction can~ter 14~
beglns. The controller 472 causes the draln pump 604 to create a negatlve prea~ure gradlent ln~lde the suctlon cani~ter l~B via the ~econd drai~ line 620 and the left ~uction condult 536. ~rhe negatlve pre~ure gradlent cause~ the bodlly fluld held in tbe suctlon canister 14~ to be t~ken up into the inner condult 496, ~low through the le~t suctio~ condult 536, flow through the second drain llne 620, flow through the drain pump 604, and then flow into the ho~pital ~ewer ~ystem v~a the flrst drain line 608.
After the suction canl~ter 14~ i8 substantially dralned of bodlly -2~-,`
l~ 212~4~1 fluld a~ detenmined by the ~-llne ~en~or 624, the water pump S88 i~ activated by ~he controller 472. A~ a resule, water from the water reservoir 5~0 flows through the ~econd water eupply llne 592, through the water pump 588, through the third water ~upply llne 600, through the left water ~upply condult 560 and then lnto the outer condult 500 of the probe 492 to be ~prayed lnto the lnterior of the ~uctlon canl~ter 14B via the outlets 508. The outlet~ 508 th~t are slanted upward near the top of the outer conduit S00 enable water to reach the bottom ~urface of the cover 22. The water al~o travel~ through the horizontal conduit 528 d and lnto the conduit 516 of the ~econd probe 512, then out of the open end 524 and lnto the cleaning chamber 236 where the water i coRtacts the cleanlng agent. The water and cleaning agent then pass through the cleanlng chamber outlet~ 2s6 and lnto the lnterlor of the suct~on cani~ter 14B. As the water and cleanlng agent accumulate ln the interior o~ the suction canis~er 14B, the i lnner condult 496 continues to drain t~e euctlon canl~ter 14B.
At any time during the dralnlng and cleanlng cycle, the deadman wltch 4~0 can be actlvated to immedlately ~hut down the cleanlng station 400 ln case of emergency.
The controller 472 controls the amount of time the waeer i9 belng pumped lnto the suctlon can~ter 14B. When that time period 1B over, the controller 472 sends a signal to the water supply pump SB8 to cea~e ~upplylng the ~uctlon cani~ter 14B
with water. The controller 472 con~lnue~ to ha~e the drain pu~p :i :.
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.... .... . , .. . ,. . . ... .... - .- . - - . .. . -.. ... - - - .. , - .. .. . -21254~1 604 drain the remalni~g fluld from ehe ~uctio~ canlster 14~ af~er ~he water pump 588 ha~ ceased operating. In the preferred embodiment, the clea~lng and draining cycle total tlme 10 approximately 120 ~econd~. When ~he dralning and clean~ng cycle 18 completed, the controller 472 aend~ a ~ignal to the left , hydraullc a~sembly 490 to ~ove the left upper hou~ing 488 I upwardly ~o as to remove the flrst and second probe~ 492, 512 frQm the ~uction canister 14~. The holdlng bracket 466 can then be m~nually plvoted upwardly and the auctlon canlster 14B removed frQm the cradle ~20 of the clea~ing statlon 400. If the right suction cani~ter 14A i~ properly positioned in the right cradle ~16 wlth the holdlng brac~et 464 properly positioned, the controller 472 wlll lnltlate the auto~atlc drainlng and cleanlng cycle for the rlght ~uctlon canlster 14A.
~ To prepare a drained and cleaned ~uction canie~er 14 a~ for another u~e ln collecting bodily fluld, the used cover 22 19 removed and di~carded, preferably lnto the wa~te contalner 452 of the cleaning ~tatlon 400. A clean cover ~ put in place on the suctlon canister receptacle lB. ~sed covers and clean cover~ can be vlsually di~tlngulshed becau~e the u~ed cover~ do not have the seal 280 ln place on the cartrldge 18~ and because the u~ed covers have punched out cleanlng port coverc 70.
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~E~I39 It 1B another ob~ect of the i~vent~on ~o provlde a medical ~uction eyetem that include0 a cleanlng etation whlch draln~ and dieposes of the bodily flul~ held in a suction canlster and then cleans the cani~er without hospital pereonnel contacting the bodily fluid held therein.
It 19 another ob~ect of the lnvention to provlde a medical cuction eystem that utillzee a cleaning instrument to drain and clean a suctlon can~ster.
It i8 another ob~eet of the invention to provide a medical euctlon syetem that provldes a vislble indication that a suction canlster receptacle ha~ been drained and cleaned.
It le another ob~ect of the lnvention to provide a ~ medical euction system that diepensee a cleaning agent into a `i ~uction canlster in responee to the introduction of a cleanlng fluid i~to the can$eter.
Other feature~ and advantage~ of the inventlon will ~ become apparent to those of ordinary skill in the art upon revlew '~ of the following detailed de~cription, claime, and drawinge.
il ~IBP~ RLP~LQ~LoY THB PRAWINGS
~ ig. 1 le a perepec~ive view of a euction canieter embodylng the invention;
Fig. 2 ie a bottom vlew of the suction canister;
~ ~ig. 3 18 a top perepective view of the main body of 1 the 8uction cani~ter cover;
., ~i2~
~E~0139 ~ig. 4 i8 a botto~ per~pective view of the maln body;
Pig. S i~ a top plan view of the main body;
Fig. 6 1~ a bottom plan view of the maln body;
Fl~. 7 1~ a top perQpective view of the cartridge of the suctlon cani~ter cover;
Fig. 8 is a top plan view of the cartridge;
~ ig. 9 i8 a bottom plan view of the cartridge;
~ ig. 10 18 a sectlonal vlew of the suctlon cani~ter cover taken along line 10-10 ln ~lg. 3 with the cartrldge ln the open positlon;
Pi~. 11 is a vlew ~lmilar to Fig. 10 ~howing the cartridge ln the closed position;
~ lg. 12 i8 a partial ~ectional view ~aken along line 12-12 of Yig. 3 with the cartridge in the open positlon;
~ ig. 13 i9 a view ~imilar to Fig. 12 showing the cartridge in the cloaed po~itlon;
Flg. 14 i~ a perspect~ve vlew of the key;
Fig. 15 is a bottom plan view of the key;
Pi~. 16 la a per~pective view of the cleaning ~tation ~; .
j~ of the medlcal ~uctlon aystem;
Pig. 17 i~ a partial ~ectional view of a ~uction ~ canister ~upported by the cleaning statlon with a fir~t probe of ,i the cleaning ~tation in~erted in the cani~ter;
Pig. 18 1~ a sectlonal vlew taken along ll~e 18-18 in ., Fig. 17;
.~
.
21 25~51 ~E~D13~
Flg. 19 1~ a fro~t elevatlonal vlew, partlally broken away, of ~he cleanlng etat~on; a~d Ylg. 20 is a left ~ide elevational vie~, partially broke~ away, of the clean~ng etatlo~.
~ efore one embod~ment of the invention is explalned ln detall, lt 19 to be under~tood that the invention i8 not limi~ed in its application to the detail~ of construction and the arrangement of components eet forth ln the followlng description ,~j or illu~trated in the drawlnga. The invention is capable of other embodimentc and of being practiced or being carrled out i~
,....
varlous waye. Aleo, it is to ~e understood that the phraseology and terminology u0ed hereln le for the purpo~e of descript~on and should not be regarded a~ l~mitlng.
.~ .
~, ~e~errlng now to the drawings in which llke reference ; numeral~ refer to like part~ throughout the views, there i~ ~hown ,j a medical suction ~yatem 10 embodying the invention. The syetem 10 comprlses (~ee ~ig. 1) a suctlon canlster 14 whlch include~ a receptacle 18 and a di~posable cover 22. Ihe receptacle 18 18 ~ closed excep~ ~or an openlng or receptacle port 26 at the top, `~, the receptacle port 26 being defined by an annular receptacle port wall 30 (~ . 10 and 11~. In the preferred embodiment, the r `~ receptacle 18 i8 manufactured of clear unbreakable plastlc wlth a ,.~
~: - 7-`:' .~, . -. `
. , .
212~51 .~"~~otal volume capacity of 4000cc of fluid. The receptacle can be manufactured a0 one integral piece or as two pleces, a top por~ion and a bottom portion, that are fixed tosether by ~onic - welding or other ~ultable means. ~8 best shown ln Figs. 1 and 2, the receptacle ha8 0~ lt~ lower ~urface 32 four generally ,~
radlal~y extendlng pro~ectlons 34, 36, 38, 40 that do not hold fluid. The lnner end~ of the four pro~ect~ons 34, 36, 3~, 40 define a recess 42 ln the lower ~urface 32. The receptacle 18 also define~ a critlcal measure area 46 located at the bottom-mo~t portion of the receptacle interior. The critical mea~ure area 46 i8 of V-~haped cros~-~ectlon at it~ lower-most end and extends across the receptacle 18. On the suter surface 50 of the receptacle 18 are gradation linee 54 that correspond to various fluid volume levels. A~ the suction canister receptacle 1~
begins to fill with fluld, the cr~tical mea~ure area 46 enables the reading of very small fluid quantities using the gradatlon lines 54.
The cover 22 close~ the receptacle port 26, thus sealing the interior of the ~uction cani~ter 14. Referring to Figs. 3 through 6, the cover 22 lncludes a main body 58 having a top wall 62. A weakened portio~ 66 of the top wall 62 deflne~ a cleaning port cover 70 that can be punched out to define a cleaning port 74 ~ig. 1~) in the top wall 62. An annular patient port wall 78 extend3 upwardly and downwardly from the top wall 62 and define~ a patient port 82 and a fluid pa~ageway 86 2125~51 ~E~OI
(~lg~. 10 and 11) extendl~g upwardly from the patlent por~ 82.
Further, a~ ~hown in ~ig2. 4 and 6, a ~top member 88 pro~ect~
outwardly from the portlon of the patient port wall 78 ~hat extends downwardly from the top wall 62.
To enable communlcatlo~ between the patient and the .. patie~t port 82, one end of a patient conduit 94 i8 af~lxed to ` the cover 22 by forcing the patient condult 94 over the patlent por~ ~all 7~ a~ depicted ln ~ . 10 and 11. The flula pas~ageway 86 thu~ communicate~ wlth the patient conduit 94. The other end of the patlent conduit 94 commNnlcate~ with the patlent ; (not shown).
~ As best ~hown ln ~iy8. 3 and 4, a boss 102 extends ; upwardly from the top wall 62 and deflne~ a downwardly opening treatment chamber 106. The treatment chamber 106 hold3 a chemlcal treatment 110 (Flg. 11). In the preferred embodiment, the chemical treatment i8 an antl-foaming and an~i-coasulating agen~ ~uch a~ c~trlc acld ln the form of a tablet. ~owever, it ehould be appreciated that the chemical treatment 110 can be any type of chemlcal uYed to treat the bodily fluid whlle the fluld eld ln the receptacle 18.
Referring to Fig~. 3 through 6, the main body 58 also lncludes an annular sidewall 114 extending from the periphery of the top wall 62. The sidewall 114 lnclude~ an outwardly ' extending annular flange 118. The eidewall 114 defines an i annular recess 122 as be~t seen ln Pigs. 4 and 6. To ~ecure the g , ., . _ 2~ 2~451 ~".
cover 22 to the receptacle 18, t~e receptacle port wall 30 i8 po~itloned in the rece~ ~22 such that the flange 118 rest~ on the receptacle 18 as ehown on Plg~. lO and 11. Preferably, a friction fl~ ~ecures the receptacle port wall 30 ln the reces~
122. Alternatively, the cover 22 could thread onto the receptacle port wall 30 or could be connected thereto by other means .
As best ~een in Fig~. 4 and 6, an annular ~ocket wall 126 depends from the underside of the top wall 62. Ihe ~ocket wall 126 define~ four spaced locklng tab~ 12B, 129, 130, 131.
The lower end of each locking tab has thereon a radially lnwardly extending l~p 132.
Referrlng to Pig~. 3 and 4, ~he main body 58 al~o defines a suction passageway 140 having a longitudinal axis 144.
~ The Huction passageway 140 i~ connectable with a ho~pl~al vacuum A sy~tem via a suction conduit 14~ ~Figs. 1, 10 and 11), a~ will be , explalned later. The ~uction pa~ageway 140 i~ cen~rally located , wlthln t~e main body 58 and has an upper end surrounded by a J horizontal annular wall 152. The horizontal wall 152 i~
connected to the top wall 62 by an lnterlor annular wall 156 that depends from the top wall 62. The horizontal wall 152 extend~
radially inwardly from the lower end of the interior wall 56.
Further, an annular ~uctlon port wall 160 depends from the inner radial edge of the horizontal wall 152 and further define~ the suction pas~ageway 140. The lower end of the suction port wall .. . .
212~451 ~e~D139 ~160 haa therein a ~otch defin~ng a auction port 172 communlcatlng wlth the lower end of the ~uctlon paRsageway 140.
A~ best seen in Figs. 3 and 5, the horlzontal wall 152 and the suction port wall 160 cooperate to define an arcuate notch 176, a~d the interior wall 156, the horlzontal wall 152 and the suctlon port wall 160 cooperate to defi~e a key holder ~ocket 180 in the top of the maln body 58. Further, as best seen ln Pigs. 4 and 6, the undereide of the top wall 62, the underside of the horizontal wall 152 and the socket wall 126 define a cartrldge socket 184 ln the underslde of the maln body 58.
Referring now to Fig~. 7 through 9, the cover 22 al~o includes mean~ for dlspenslng a cleaning agent into the ~ receptacle ln re~pon~e to the lntroduction of a cleaning fluid I into the clean~ng port 74, mean~ for openlng the patlent port 82 ~ in re~pon~e to openlng of the ~uction port 172 and for clo~ing ¦ the patient port in response to cloHlng of the suction port 172, meana for introducing a chemical treatment into the in~erlor of the receptacle 18 in response to the opening of the patient port ~J ~2, and meane for ~llterlng air drawn through the ~uctlon port 3 140 when the ~uction port $e connected to the vacuum ~ource. All of the foregoing mean~ include a cartrldge 188 supported by the main body 58 for plvotal movement relatlve thereto about the axi8 144 of the suction pae~ageway 140 and between an open po~ltlon (~ig~. 10 and 12) and a clo~ed positlo~ (Yigs. 11 and 13). More epeciflcally, t~e car~rldge 188 1~ located ln the cartrldge :
~ :
212~51 socket 184. Tbe llp 132 of each loc~ing tab 128, 129, 130, 131 exten~s beneath the lower end of the cartr~dge 1~8 to retaln the cartrldge ln the cartrldge ~ocket 1~4 ~igs. 10 and 11).
As beet seen ln ~1~8. 7 through 9, the cartridge 188 .. includes an annular top wall 192 havlng thereln an aperture 196 for communicatlon wlth the interior of the suctlon canister 14 and for selectiYe communlcatlon with the treatment chamber 106.
ri( When the aperture 196 1~ aligned with the treatment chamber 106, ~ he chemical treat~ent 110 drops lnto the receptacle 18 (~ig.
., 10). The aperture 196 i8 aligned wlth the treatment ch~mber 106 E when the cartridqe lsa 18 ln the open po~itlon, as shown ln g Ylg. 10, and 18 not allgned wlth the treatment chamber 106 when the cartridge 188 i8 in the clo~ed poeltion, as ~hown in ~ig. 11.
The top wall 192 al80 ha~ therein (see ~ig~. 7-9, 12 and 13) an arcuate inlet 200 whlch communicates ~lth the lnterlor of the receptacle 18 and which selectlvely commNnlcate~ with the patie~t port 82. A first end-wall 204 depends from the top wall 192 and de~ines one end of the inlet 200. The top wall 192 .. lncludee a recee~ed ramp portion 212 that defines the other e~d . 216 o~ the inlet 200. As ~hown ln Yig~. 12 an~ 13, the ramp portion 212 conalst~ o~ a vertical ~egment 220, a horlzontal . ~egment 224, and a ramp segment 228 that tenminates in a second .. ; end wall 232. A~ ehown in Plg. 13, the horizontal eegment 224 tightly engage~ the lower end of the wall 78 and clo~ee the pa~ient port ~2 when the cartridge 188 i8 in the clo~ed po~itlon.
~;
,:
. ~
:j `- - 212~
The tight engagement between the hor~zontal ~egment 224 and the wall 7~ ~ubstantlally seals the patlent port 82. The patlent port B2 le aligned with the lnlet 200 when the cartridge 188 1 in t~e open po~ltion, a~ 3hown in ~ig. 12. The bottom of the patlent port wall 78 move~ up the ramp ~egment 228 to the horizontal eegmen~ 224 when the cartrldge 18~ moYe- rG~ the open po~ition to the clo~ed position. -A~ depicted ln ~lg~. 7-11, the cartridge 188 also deflnes an annular cleanlng chamber 236 which communlcates wlth the cleanlng port 74 and conta~ ne a cleaning agent . The cleaning agent can be any ~uitable chemlcal or combination of chemicale, such ae a detergent, that aids i~ clean~ng the interior of the ~uction cani~ter 14. The cleaning chamber 236 1~ deflned by a flr~t annular inner wall 244, a bottom wall 248 and an outer wall 252. The ln~r wall 2~4 depends from the perlphery of the top wall 192, the bottom wall 248 extend3 radlally outwardly from the lower portlon of the lnner wall 244, and the outer wall 252 extend~ upwardly from the ~ottom wall 248. The top of the cleanln~ chamber 236 1~ closed by the top wall 62 of the maln body 5~. The cartrldge 188 ~1BO de~lne~ a cleaning chamber outle~ ln the fonm of a plurallty of ~paced outlet~ 256 ln the bottom wall 248 that allow the cleanln~ agent to flow lnto the interior of the receptacle 18 ln reepon~e to the ~ntroductlo~ of a cleaning fluid lnto the cleanlng port 74. The cleaning of the ,i .
., 212~
.~,39 suctlon canieter wlll be dlscu~sed in greater detail ln a later section.
Continuing ~o refer to ~ig8. 7-11, the cartridge 188 has a second annular inner wall 264 depending from the i~ner periphery of the top wall 192. The second lnner wall 264 16 conce~tric wlth and radially inward of the fir~t inne~ wall 244.
The inlet 200 of ~he cartridge 188 1~ thus deflned more ~pecifically by the flrst and second end wall~ 204 and 232, respectively, and by portions of the first and second inner walls 244 and 264, reepectively. Bxte~dlng radlally inwardly and horizontally from ~he second lnner wall 264 is a horizontal annular wall 268, and depending ~rom the inner edge of the wall 268 1~ a ~hird annular inner wall 272. The wall 272 i8 concentrlc with the wall~ 244, 264 and 18 the most inward of these three walls. The lower end of the wall 272 i8 closed by a removable member or eeal 280 having thereon score llnes 284. The wall 272 al~o has therein a rece~e 288 (~ee Flgs. 8 and lO).
Referrlng to ~igs. 9-11, the underside of the wall 268 and the walls 264, 272 de~lne a fllter pa~eageway or filter chamber 292. Wlthln the ~llter paeeageway 292 are rlbe 296 (Flg.
9) extending radially lnwardly and outwardly frcm the wall~ 264, 272. The wall 272 has thereln a fllter passageway outlet 300.
As chown ln ~lg. 10, the fllter passa~eway outlet 300 ~1com~Nnicates wlth the suctlon port 172 and thus w~th the ~uctlon passageway ~40 when the cartrldge 188 1~ ln the open po~ltlon ,1 :
, -14-, .
~12~4~
.~, t~lg. 10). The filter pas~ageway 292 i8 closed by the ~uctlon port wall 160 whe~ ~he cartrldge 18~ 1~ ln the closed po~ltion (Yig. 11). The annular area between the lower-most por~lons of the wall~ 264, 272 defines a fllter passageway inlet 304. A
sui~able filter 308 ~igR. 10 and 11) 18 located in the lnlet 304 and i9 ~upported by the rlb~ 296. The fllter 308 prevent~ alr flowing from the lnterlor of the receptacle 18 to the ~acuum aource from contaminating the vacuum source. The fllter 308 can, if desired, be hydrophoblc.
Referring to Pig~. 10 and 1~, the cartridge 188 i~
po~itloned in the cartridge socket 1~4 such that the wall 272 surrounds the suction port wall 160 of the main body 5B, the wall 268 is ad~acent the horlzontal wall 152 of the mai~ bo~y 58, the top wall 192 1~ ad~acent the top wall 62 of the main body 58, the seal 280 clo~ee the lower end of the suctlon pa~sageway ~40, and the rece~ 288 18 vislble withln the arcuate notch 176 of the main body 58.
In the open po~ition as shown in ~ig. 10, the cartridge 1~8 i8 posltioned ln the cartrldge ~ocket 184 such that the aperture 196 1~ in al~gnment with the treatment chamber 106, the filter paasageway outlet 300 18 in alignment with the suctio~
port 172, and the cartrldge ~nlet 200 i8 in allgnment with the patient port 82 and the fluid pa~ageway 86. In the clo~ed poBition a~ ~hown in Pig. 11, the cartridge lB8 i8 po~itioned in the cartridge ~ocket 1~4 ~uch that the aperture 196 i~ out of -~5-.' 212a451 alignment with the treatment chamber 106, the filter passageway outlet 300 1~ out o~ allgnmene with the suction port 172, and the cartridge inlet 200 1~ out o~ allgnment wlth the patlent port 82 and the fluid pas~ageway 86.
The movement of the cartridge lB8 relative to the ma~n body 58 between the ope~ and clo8ed poeition~ is llmited i~ the counterclockwlse dlrectlon ~a8 seen from above) by the ~top member 88 contacting the fir~t end wall 204 of the cartridge 188 (Flg. 12). The movement of the cartridge 188 relat$ve to the main body S8 i~ llmited 1~ the clockwise directlon (as ~een from above) by the lower portion of the patient port wall 78 contacting the vertical ~egment 220 of the ramp portion 212 of the cartridge 188 ~Fig. 13). The cartridge 18~ thu~ ha8 a limited range of motion relative to the main body 58. In the preferred embodlment, that range of motlon is 4S degreee between the two po~itions.
Referring to Pig~. 10, ~1, 14 and 15, to rotate the cartridge 188 relative to the main body 58 between the open and closed po~itione, the medlcal 8uction system lO utilizes a key 320 communlcatlng wlth one end of the ~uctlon conduit 14B. Thie other end of the ~uctlon condult 148 communicate~ wlth the hospital vacuum sy~tem (not ~hown). The key 320 ha~ a longitudlnal axle 332 and define~ an air passageway 336 ~Figs. 10 and 11). The key 320 lnclude~ a maln portion 340, an upper annular portion 344, a lower cylindrlcal portion 348, a turning , .
. . . _ . . ~ . . _ . .
: :
212~4~1 tab 352 extendlng upwardly from the ~a~n portlon 340 and outwardly from the upper portlon 344, and a pro~ectio~ 356 extendlng dow~wardly from the maln portlon 3~0 and outwardly fro~
the cylindrical portio~ 348. ~he maln portlon 340 ha~ a , . cylindrlcal outer eurface 360 havlng therein a groove housing a~
,' annular seallng or o-ring 364. The upper portlon 344 exten~s upwardly from the main portlon 340 and 1~ centered on the longltudinal ~xl~ 332 of the key 320. The air pas~ageway 336 extends from the upper end of the upper portion 344, through the main portion 340 and into the cyllndrical portion 348. The lower portlon 348 of the key 320 depend8 frQm the main portion 340 and ;~ 18 centered on the longltudlnal axl8 332 of the key. The lower '. portion 348 has therein a key lnlet 36B whlch communicates wlth the air pas~ageway 336. To connect the suctlon conduit 148 to ~, the key 320 and to the air paB8ageway 336, the end of the condult ~3 148 18 forced over the upper portlon 344 (~lg~. 10 and 11). me turn~ng tab 352 facllltate8 rotatlon of the key 320 about lts .i' longitudlnal axl8 332.
.' The rotatlon of the cartrldge 18~ relatlve to the cover 22 18 accompli~hed a8 follows with reference to ~lgs. 10 and 11.
Assuming the cartridge 1~8 i8 ln the closed position (Plg. ll), the key 320 le ln8erted into the key holder socket 180 of the ~ cover 22 ~uch that the pro~ection 356 on the key 320 extends i.~, through the arcuate notch 176 ln the maln body 58 and lnto the ~ recee~ 28~ 1~ the cartridge ~. Tn this positlon, the lower .,;
~ -17-.:
: .
, .:
. .
212a4~1 portion ~48 of the key 320 fllls the ~uctlon passageway 140, the main portlon 340 rests ag~ln~t ~he wall lS6, and the O-rlng 364 ~eallngly engage~ the wall 156 to prevent fluid leaks. To rotate the cartridge 188 to the open position (~lg. 10), the turning tab 352 of the key 320 1B grippe~ and the key 320 18 turned 45 ; degrees (counterclockwl6e ae viewed from above) untll movement ls inhlbited. The engagement of the pro~ection 356 of the ~ey 320 wit~ the rece~ 28a in the cartrld~e 188 cau~e~ movement of the cartridge 188 relative to the main body 58 when the key 320 ia rotated about its longitudlnal aX18 332. To return the cartridge 188 to the clo~ed posl~ion, the key 320 i~ rotated clockwise 45 degree~ untll the movement i8 inhiblted.
The operation of the ~edlcal suction sy~tem 10 in it~
flu~d collectlon capacity i~ a~ follows. A clean or unused cover 22 iq attached to 2 clean ~uction canister receptacle 18 with the cartrldge 188 ln the closed posltlon relatlve to the maln body . 58. One end of the patient condult 94 ie connected to the patlent port wall 78 of the co~er 22 to allow communicatlon between the patlent port 82 and the ~atlent condult 94. The other end of the patlent condu~t 94 communlcates with the patlent. The key 320 19 connected to one end of the euctlon conduit 148 to enable communlcation between the air pasaageway `l 336 of the key 320 and the euctlon condult 148. The other end of the suctlon condult 148 18 connected to the hospital vacuum ; system. The key 320 1~ then placed into the key holder ~ocket .~ .
, 212~51 .~".
180 and the cartrldge 1~ rotated to the open posltlon. When ehe cartridge 188 i~ moved to the open po~itlon, the treatment chamber 106 and the aperture 196 move lnto allgnment ~o that the chemical treat~ent 110 that wa~ hou~ed ln the treatment chamber 106 ~all~ into the interior of the receptacle 18 as ~hown ln ~lg.
10. In the open posltlon, alr fro~ the lnterlor of the receptacle 1~ travel~ throu~h the fllter passageway inlet 30~, through the filter 309, through the filter pa~sageway 292 and lt~
outlet 300, through the ~uctlon port 172, through the key lnlet 368, along the air pasaageway 336 of the key 320, and then through the ~uctlon conduit 148 to the hoepital vacuum ~yetem.
This creates a vacuum i~ the receptacle 18. As a result of the vacuum ln the receptacle 18, fluid from the patlent travels through the patient conduit 94, through the fluld pas~ageway 86 and the patient port 82 of the main body 58, and then ~hrough the inlet 200 ln the cartr~dge 18~ to the interior of the receptacle 18.
When ~luld collection 19 no longer desired or the suctlon canlster 14 1~ fllled wlth bodlly fluid, ehe key 320 iB ~:
rotated to return the cartrldge 188 to the clo~ed posltion. Thl~
clo~e~ both ~he filter pa~sageway outlet 300 and the fluld passageway 86, thereby atopping fluld flow through the patlent condult 94. The key 320 ie then removed from the key holder ~ockee 180. ~he ~uction canl~ter 14 i~ then ready to be dralned and cleaned as will now be de~cribed.
.~, 2~2~
Turnlng to Fig. 16, the med~cal suction sy~tem 10 alao comprises a cleanlng etatlon 400 whlch lnclude~ means for automatically dral~lng and cleanlng the ~uction canister 14 wlthout a hospltal employee contactlng the hazardou~ and lnfectious bodlly fluid contalned therein. The cleanlng etatlon lnclude~ a lower hou~lng 404 comprl~lng a cabinet 40B wlth a~
upper ~urface 412. The upper surface 412 haa thereon flr~t and second cradle~ 416 and 420, re~pectively, for supporting rlght and left suction canisters 14A and 14~. Each cradle 416, 420 i8 deflned by (eee Fig. 16) a reces~ 432 which i9 3ubstantially the same size a~ the bottom-most portlon of a ~uctlon canister 14. A
, ~, ~tub 436 extends upwardly from the center of the reces~ 432 and has thereln four V-shaped ~otcbes 440, 441, 442, 443. To orient a ~uction canister 14 relative to the clean~ng statioA 400, the suction canister 14 i~ placed into the recess 432 such that the .~
;~ inner end~ of the four pro~ections 34, 36, 38 and 40 are re~pectively recei~ed ln the four notches 440, 441, 442, 443 and the stub 436 i~ received i~ the receptacle reces~ 42. The notc~e~ 440, 441, 442, 443 and the receptacle pro~ections 34, 35, 36, 37 are arranged 80 that the ~uctio~ canlster 14 mN~t be oriented with the front face 32 forward in order to locate the bottom of the ~uctlon canlster 14 ln the rece~s 42. Plg. 19 depicts both euctlon canl~tere 14A, 14~ oriented relatlve to the . cleaning statlon 400. Ihug, the cradle~ 416, 420 and the suction .i~ canlsters 14A, 14B comprl~e i~terengaging mean~ for orlentlng the ~ -20-..
!.
;~' 212~4~1 Ui~0139 suctlon canisters 1~ 4a relative to the cleanl~g statlon 400.
~he cabinet 408 further lncludes a drawer 44~, and an attached waete cont21ner 452 (ehown only ln ~ig. 163. Door~ 454 afford access to the interior of the cabinet 408.
Contlnulng to refer to ~lg. 16, the lower houslng 404 t also comprlses apaced-apart, rlght and left ~upport poat~ 456 a~d 460, respectlvely, extendi~g upwardly from the ~pper æurface 412 of the cablnet 40~. Bach poat 456, 460 has thereon a holdlng bracket 464 which 1~ plvotable from an upwardly pro~ecting poeition a~ ~hown on the ri~ht po~t 456 to a horizontally i pro~ecting positlon a~ shown on the left po~t 460. A control pa~el 468 extends betwee~ tha posts 456, 460. The control panel 468 include~ a controller 472 ~uch as a suitably programmed ~ m~croprocessor. m e panel 468 also include~ operational buttons 3 ~uch as a S~ART button 477, ~tatua indicators (prefera~ly conventlonal L~D displays) and a deadman swltch 480, all of wh$ch ~ . are connected to the controller 472.
¦ The cleanlng statlon 400 further lnclude~ a right upper houslng 484 moveable vertlcally relatlve to the right post 456 and a left upper housl~g 488 moveable vertlcally relatlve to the left poat 460. The movement of each upper hou~lng i8 cau~ed by a hydraul.ic assembly 490 withln the asaociated support post 456 or 460. Only the hydraulic assembly 490 ln the left post 460 le ~hown (see Flg. 20). The upper hou~lng~ 484, 488 extend forwardly from their re2pective po9t3 456, 460. Bach upper , -21-~:s ., . .
2~2~
e~01~9 ,, housing ~84, 488 ha~ depending therefr~m, ad~acent the orward end thereof, a f ir8t cleanlng probe 492. As show~ ln ~lgs. 17 and 18, the probe 492 i~cludes an lnner condult 496 and an outer conduit 500. The ~nner condult 496 communicates wlth a vacuum source and has an opening 504 (Plg. 17) i~ it~ lower end. The outer conduit 500 3urrounds ths lnner condu~t 496, commNnicate~
wlth a eource of cleanlng fluld, a~d hae thereln a plurallty o outlet openlnge 508 spaced along it~ length. The outlete 502 are elanted upwardly near the top of the outer condui~ 500 and downwardly near the bottom.
Referrlng to Pl~. 16 and 18, each upper houslng 484, , 488 also hae depending therefrom, at a point ~paced laterally Si from the first probe 492, a ~econd cleaning probe 512. The eeco~d pro~e 512 include~ a ~ingle condul~ 516 with a flharp or pointed lower end ~aving therein an openlng 524. The condult 516 communlcatee with the outer conduit 500 of the fir~ probe 492 via a horlz~ntal conduit 528. The probes 492 and 512 move vertically w~th the upper housing~ 484, 488.
A~ ehown ln ~lg8. 19 and 20, the cleaning etation 400 aleo includee, lnelde the lower hou~l~g 404, right and left suctlon conduite 532 and 536, respectively. The upper e~d of the conduit 532 communicate~ wlth the inner condult 496 of the right upper houeing 4~4, and the upper end of the condult 536 communlcatee with the inner conduit 496 of the left upper hou~lng 488. The lower ende of the conduits 532, 536 are eelectlvely . -22-`~
>
212~
.~"9 connectable to a vacuum ~ource a~ described below. Th~ cleanln~
station 400 al~o lncludes right and left water supply conduit~
556 and 560, re~pectlvely. The upper end of the conduit 55 communicate~ with the outer condult 500 of the rlght upper housing 4~4, and the upper end of the conduit 560 commNnicates wlth the outer condult 500 of the left upper houslng 48~. The lower ends of the conduits 556, 560 are selectivaly connectable to a source of cleanlng fluid ae will be descrlbed below. In the preferred embod~ment, the cleaning fluld utlllzed ls water.
Referring agaln to ~lg8. 19 and 20, the cleanlng station 400 al~o lncludes, in the lower housing 404, a water supply reservolr 580 communlcatlng wlth the hospltal water supply via a first water supply llne 584. The lower housing 404 also includes a water supply pump 58~ connected to the water reservoir 580 by a second water ~upply llne 592. The water supply pump 558 communlcates wlth a water ~upply valve 596 via a third water supply line 600. The valve 596 cQmmunlcates wlth the lower ends of the water eupply condults 556, 560. The water supply valve 596 dl~erts the water ln the thlrd supply llne 600 to either the rlght water supply conduit 556 or the left water supply conduit 560 depending upon which,of the two ~uction canisters 14A and 14 ls belng cleaned and dra$ned.
To create the negative pressure gradlent that enables draining of a suction canis~er, the cleaning statlon 400 lnclude~
draln pump 604 ehow~ ln Plg8- 19 and 20. The draln pump 604 . ~
~ -23-.;
, ,, -- 2~25451 communicate~ with the ho~pltal 8ewer ~ystem via ~ flr~t drai~
l~ne 608. The drain pump 604 aleo communicates with the water re~ervoir 580 vla an overflow ~tandplpe 612. If the volume of water ln the water re~ervoir 580 exceeda a predetermlned volume, the excesa water will flow through the ~tandpipe 612 aDd l~to the drain pump 604 to be dl~charged into t~e ho~pital sewer vla the first draia line 60~. AB ~how~ in Ylg. 19, a vacuum Yalve 616 communicate~ with the draln pump 604 via a ~econd drain llne 620.
The lower end~ o~ the right and left ~uction conduits 532, 536 communicate with the vacuum val~e 616. The vacuum valve 616 ~electlvely connect~ elther of the rlght and left suctio~
conduit~ 532, 536 to the drain pump 604 Yia the second draln line 620. The ~econd draln line 620 ha~ therein a~ l~-llne aeneor 624 that determine~ when fluld is no lo~ger dralnin~ from a suction cani~ter.
~ hen a euctlon canister containing bodily fluid needs to be drai~ed and cleaned, the ~uctlon canl~ter 14 1~ oriented on one o~ the cradles 416, 42Q of the cleanlng ~tatlon 400 as prevlou~ly described. Although the cleaning ~tation 400 has the capabllity o~ Bupportlng two 8uctlon canleter~ 14A, 14~ on the lower hou~i~g 404, o~ly one ~uctlon canlster 14 can be dralned and clea~ed at a tlme. A~ter orient~ng the suctlon canieter 14 on either cradle 416 or 420, the operator manually pivot8 the corre~pond~ng holdl~g bracket 464 or 466 downwardly untll the bracket contact~ the suction cani8ter 14. The operator then .
. . .
. .
2~2~
.~,~
depre3ses the START button 477 to lnitiate a timed dralnlng and cleanln~ cycle. If the holding bracket 464 or ~66 has not been plvoted downwardly onto the ~uctlon canl~ter 14, the controller 472 will not i~itiate the drainlng and clea~ing cycle even ~f the START button 477 iB depre88e~. ~y checklng the po~ltlon~ of the hold~ng bracket~ 464, 466 on the rlght and left posts ~56, ~0, t~e controller 472 dsterm~ne~ which of the cradles 416, 420 haB
~uction cani~ter thereon or if ~oth cradles 416, 420 have a suction canister thereon. If both cradles 416, ~20 have a ~uction canl~ter thereon, the ~ontrollar 472 will lnltlate t~e cleaning and draining of the left suction can~ster 14B first. If only one of the cradles 416 or 420 has a suction canister thereon ~ :
with the holdlng ~racket 464 or 466 pivoted downwardly, then the co~troller 472 wlll inltlat~ the cleaning and draining cycle of that particular ~uctlon canister.
If the rlght suctlon cani~ter 14A i8 to be drained and cleaned, the controller 472 sends a ~ignal to the water supply va~ve 596 to provide commNnication between the right water ~upply conduit 556 an~ the thlrd water supply li~e 600. The controller 472 al~o send~ a ~ignal to the vacuum valve 616 to provlde ~ commNnication between the rlght suction line 532 and the second drain line 620. Slmllarly, if the left euction canlster 14~ 19 to be cleaned and dralned, the controller 472 sends a ~lgnal to the water supply valve 596 to provlde communlcatlon between the i left water supply condult 560 and the thlrd water supply llne ,, , -25-. .
,.
.i.,. ..... , ...... , ~ ,. . , .. -. . .- . .
: . . .. .. .. . . ~ - . . ~ . .
21254~1 .~
600. The controller aleo send~ ~ s~gnal to the vacuum valve 616 to provlde commN~lcatlon between the left ~uction condult 536 a~d :. the ~econd draln llne 620. Hereafter, it wlll be assumed that the left suctlon cani~ter 14~ 1~ belng dralned and cleaned as represented by Plg. 20.
Referring to ~lga. 18 and 20, the controller 472 sends ~1 a ~ignal to the left hydraulic assembly 490 which cau~es the left ,j upper housing 488 to move downwardly relative to the lower housing 404. As the left upper hou~ing 4~ is lowered, the fir~t probe 492 also mo~e~ downwardly and 18 lnserted lnto the left 3uction canl~ter 14B through the euction passageway 140. A~ the . probe 492 move~ downwardly throu~h the ~uction pa~sageway 140, ~ the prohe 492 contact~ the ~eal 280 on the cartrldge 188.
ii Furt~er downward mo~ement cau~es the probe 492 to break the seal 2ao away from the cartridge. The ~eal 280 thus cQmprisee a means for providing a visual lndlcatlon that a suction canister has been cleane~ and more partlcularly that a ~leaning instrument or probe has been inserted into the suctio~ passa~eway. The probe 492 act~ a~ a mean~ for alterl~g the suction canlster 14B ln re~pon~e to cleanln~ the~eof.
'~. A~ter the seal 280 ha~ been ~ro~en, the controller 472 i~ cont~nues to cauee the downward movement of the left upper ~ hou~i~g 48~ and the probe 492 untll the left upper houslng 4 ,,~
contacts the cover 22 of the ~uctlon caDl~ter 14B. The probe 492 ~1 now extend~ into the interior of the euctlon cani~ter 14B.
. ~
. -26-. .
., ''`;
21 25~51 ~9139 Slmultaneou~ly ~ the flr~t probe 492 i~ lowered, the second probe 512 iB al~o lowered. Downward movement of the left upper hou~lng ~ cauees the probe 512 to contact the cleaning port cover 70. Further downward movement of the left upper housing 489 cau~e~ the probe 512 to punch out the cleanlng port cover 70 from the top wall 62 of the cover 22, allowing the probe 512 to pa~ through the cleaning port 74. The cleanlng port cover 70 thus al80 actY a~ a means for provldlng a vlslble indication that a cleaning fluld ha~ been introduced into the cleanlng port. The probe 512 act0 as a means for alterlng the ~uctlon cani~ter ln re~pon~e to cleaning thereof. When the downward movement of the left upper houslng 488 cea~es, the probe 512 18 positloned in the cleaning chamber 236 of the cover 22 as deplcted ln Flg. 18.
~ fter the flr~t and ~econd probes 492, 512 are ln the~e positions, the cleaning and dralnlng of the auction can~ter 14~
beglns. The controller 472 causes the draln pump 604 to create a negatlve prea~ure gradlent ln~lde the suctlon cani~ter l~B via the ~econd drai~ line 620 and the left ~uction condult 536. ~rhe negatlve pre~ure gradlent cause~ the bodlly fluld held in tbe suctlon canister 14~ to be t~ken up into the inner condult 496, ~low through the le~t suctio~ condult 536, flow through the second drain llne 620, flow through the drain pump 604, and then flow into the ho~pital ~ewer ~ystem v~a the flrst drain line 608.
After the suction canl~ter 14~ i8 substantially dralned of bodlly -2~-,`
l~ 212~4~1 fluld a~ detenmined by the ~-llne ~en~or 624, the water pump S88 i~ activated by ~he controller 472. A~ a resule, water from the water reservoir 5~0 flows through the ~econd water eupply llne 592, through the water pump 588, through the third water ~upply llne 600, through the left water ~upply condult 560 and then lnto the outer condult 500 of the probe 492 to be ~prayed lnto the lnterior of the ~uctlon canl~ter 14B via the outlets 508. The outlet~ 508 th~t are slanted upward near the top of the outer conduit S00 enable water to reach the bottom ~urface of the cover 22. The water al~o travel~ through the horizontal conduit 528 d and lnto the conduit 516 of the ~econd probe 512, then out of the open end 524 and lnto the cleaning chamber 236 where the water i coRtacts the cleanlng agent. The water and cleaning agent then pass through the cleanlng chamber outlet~ 2s6 and lnto the lnterlor of the suct~on cani~ter 14B. As the water and cleanlng agent accumulate ln the interior o~ the suction canis~er 14B, the i lnner condult 496 continues to drain t~e euctlon canl~ter 14B.
At any time during the dralnlng and cleanlng cycle, the deadman wltch 4~0 can be actlvated to immedlately ~hut down the cleanlng station 400 ln case of emergency.
The controller 472 controls the amount of time the waeer i9 belng pumped lnto the suctlon can~ter 14B. When that time period 1B over, the controller 472 sends a signal to the water supply pump SB8 to cea~e ~upplylng the ~uctlon cani~ter 14B
with water. The controller 472 con~lnue~ to ha~e the drain pu~p :i :.
~, ~ .......... .
.... .... . , .. . ,. . . ... .... - .- . - - . .. . -.. ... - - - .. , - .. .. . -21254~1 604 drain the remalni~g fluld from ehe ~uctio~ canlster 14~ af~er ~he water pump 588 ha~ ceased operating. In the preferred embodiment, the clea~lng and draining cycle total tlme 10 approximately 120 ~econd~. When ~he dralning and clean~ng cycle 18 completed, the controller 472 aend~ a ~ignal to the left , hydraullc a~sembly 490 to ~ove the left upper hou~ing 488 I upwardly ~o as to remove the flrst and second probe~ 492, 512 frQm the ~uction canister 14~. The holdlng bracket 466 can then be m~nually plvoted upwardly and the auctlon canlster 14B removed frQm the cradle ~20 of the clea~ing statlon 400. If the right suction cani~ter 14A i~ properly positioned in the right cradle ~16 wlth the holdlng brac~et 464 properly positioned, the controller 472 wlll lnltlate the auto~atlc drainlng and cleanlng cycle for the rlght ~uctlon canlster 14A.
~ To prepare a drained and cleaned ~uction canie~er 14 a~ for another u~e ln collecting bodily fluld, the used cover 22 19 removed and di~carded, preferably lnto the wa~te contalner 452 of the cleaning ~tatlon 400. A clean cover ~ put in place on the suctlon canister receptacle lB. ~sed covers and clean cover~ can be vlsually di~tlngulshed becau~e the u~ed cover~ do not have the seal 280 ln place on the cartrldge 18~ and because the u~ed covers have punched out cleanlng port coverc 70.
.
., ,~
. .
: ` :
Claims (30)
1. A cover for an opening in a medical suction canister receptacle used in draining fluid from a patient, said cover comprising a main body for substantially covering the opening, said body having therein a cleaning port, and means for dispensing a cleaning agent into the canister in response to the introduction of a cleaning fluid into said cleaning port.
2. A cover as set forth in Claim 1 and further comprising means for automatically providing a visible indication that a cleaning fluid has been introduced into said cleaning port.
3. A cover as set forth in Claim 1 wherein said dispensing means includes a cartridge which is supported by said body, which defines a chamber containing said cleansing agent and communicating with said cleaning port, and which defines a chamber outlet through which the cleaning fluid and said cleaning agent flow into the receptacle in response to the introduction of the cleaning fluid into said cleaning port.
4. A cover as set forth in Claim 1 wherein said body defines a suction port for connection to a vacuum source, and wherein said cover further comprises means for filtering air drawn through said suction port when said suction port is connected to a vacuum source.
5. A cover as set forth in Claim 4 wherein said dispensing means and said filtering means both include a cartridge which defines a cleansing chamber containing said cleaning agent and communicating with said cleansing port, which defines a chamber outlet through which the cleaning fluid and said cleaning agent flow into the receptacle in response to the introduction of the cleaning fluid into said cleaning port, and which defines a filter passageway having an inlet and an outlet and having therein a filter, said cartridge being supported by said body for movement between an open position wherein said filter passageway outlet communicates with said suction port and a closed position wherein said filter passageway outlet does not communicate with said suction port.
6. A cover for an opening in a medical suction canister receptacle used in draining fluid from a patient, said cover comprising a main body for substantially covering the opening, said body defining a suction passageway for connection to a vacuum source and a patient port for communication with the patient, and means for opening said patient port in response to opening of said suction passageway and for closing said patient port in response to closing of said suction passageway.
7. A cover as set forth in Claim 6 and further comprising means for introducing a chemical treatment into the interior of the receptacle in response to opening of said suction passageway.
8. A cover as set forth in Claim 7 wherein said chemical treatment is an anti-foaming, anti-coagulating agent.
9. A cover as set forth in Claim 6 wherein said means for opening and closing said patient port includes a cartridge having therein an inlet opening adapted to communicate with the interior of the receptacle, said cartridge being supported by said body for movement between an open position wherein said inlet opening communicates with said patient port and a closed position wherein said inlet opening does not communicate with said patient port.
10. A cover as set forth in Claim 9 wherein said main body includes a cleaning port, and wherein said cartridge defines a cleaning chamber containing a cleaning agent and communicating with said cleaning port, and defines a cleaning chamber outlet through which a cleaning fluid and said cleaning agent flow into the receptacle in response to the introduction of the cleaning fluid into said cleaning port.
11. A cover as set forth in Claim 9 wherein said cartridge defines a filter passageway having an inlet adapted to communicate with the interior of the receptacle having therein a filter, and having an outlet which communicates with said suction port when said cartridge is in said open position and which does not communicate with said suction port when said cartridge is in said closed position.
12. A cover for an opening in a medical suction canister receptacle used in draining fluid from a patient, said cover comprising a main body for substantially covering the opening, said body defining a port communicable with the interior of the receptacle, and means for automatically providing a visible indication that a cleaning instrument has been inserted into said port.
13. A cover as set forth in Claim 12 wherein said means includes a seal which is broken by insertion of the cleaning instrument into said port.
14. A medical suction system for draining fluid from a patient, said system comprising a suction canister, and a cleaning station including means for automatically draining and cleaning said suction canister.
15. A system as set forth in Claim 14 wherein said suction canister includes a port, and wherein said draining and cleaning means includes a probe insertable into said port, said probe including an inner conduit for draining said canister and an outer conduit which surrounds said inner conduit and which supplies cleaning fluid to said canister.
16. A system as set forth in Claim 15 wherein said cleaning station includes upper and lower relatively movable housings, said lower housing supporting said suction canister, said upper housing supporting said probe, and said probe being inserted into said port in response to relative movement of said upper and lower housings.
17. A system as set forth in Claim 16 wherein said probe is inserted into said port in response to downward movement of said upper housing relative to said lower housing.
18. A system as set forth in Claim 14 wherein said canister includes a receptacle having therein an opening and a cover substantially covering said opening, said cover defining a cleaning chamber containing a cleaning agent, and a cleaning chamber outlet communicating between said cleaning chamber and the interior of said receptacle, and wherein said draining and cleaning means includes means for introducing a cleaning fluid into said cleaning chamber.
19. A system as set forth in Claim 18 wherein said cover includes a main body for substantially covering the receptacle opening, said body having therein a cleaning port communicating with said cleaning chamber, and said cover also including a cartridge which is supported by said body and which defines said cleaning chamber and a chamber outlet through which the fluid and said cleansing agent flow into said receptacle in response to the introduction of the cleaning fluid into said cleaning port, and wherein said means for introducing a cleaning fluid into said cleaning chamber includes means for introducing a cleaning fluid into said cleaning port.
20. A system as set forth in Claim 19 and further comprising means for automatically providing a visible indication that a cleaning fluid has been introduced into said cleaning port.
21. A system as set forth in Claim 19 wherein said suction canister includes a suction passageway, and wherein said draining and cleaning means also includes a first probe insertable into said suction passageway, and wherein said means for introducing a cleaning fluid into said cleaning port includes a second probe which is insertable into said cleaning port.
22. A system as set forth in Claim 14 and further comprising interengaging means on said cleaning station and on said suction canister for orienting said suction canister relative to said cleaning station.
23. A medical suction system for draining fluid from a patient, said system comprising a suction canister, a cleaning station including means for cleaning said suction canister, and indicator means for altering said suction canister in response to cleaning thereof so as to provide a visible indication that said suction canister has been cleaned.
24. A system as set forth in Claim 23 wherein said suction canister includes a port, and wherein said cleaning means includes a probe insertable through said port and into said canister, said probe including a conduit which supplies cleaning fluid to said canister.
25. A system as set forth in Claim 24 wherein said indicator means includes a portion of said suction canister that is punched out when said probe is inserted into said port.
26. A system as set forth in Claim 24 wherein said canister includes a receptacle having therein an opening and a cover substantially covering the opening, said cover defining a cleaning chamber containing a cleaning agent, and a cleaning chamber outlet communicating between said cleaning chamber and the interior of said receptacle, wherein said probe is inserted through said port and into said receptacle to clean said canister, and wherein said cleaning means also includes a second probe insertable into said cleaning chamber to introduce a cleaning fluid into said cleaning chamber.
27. A cover for an opening in a medical suction canister receptacle used in draining fluid from a patient, said cover comprising a main body for substantially covering the opening, said body defining a suction port for connection to a vacuum source and a patient port for communication with the patient, and treatment means for introducing a chemical treatment into the interior of the receptacle in response to opening of said patient port.
28. A cover as set forth in Claim 27 wherein said chemical treatment is an anti-foaming, anti-coagulating agent.
29. A cover as set forth in Claim 27 and further comprising a cartridge defining a filter passageway having an inlet and an outlet, and a filter in said filter passageway, said cartridge being supported by said body for movement between an open position wherein said filter passageway outlet communicates with said suction port and a closed position wherein said filter passageway outlet does not communicate with said suction port.
30. A cover as set forth in Claim 29 wherein said main body also includes a treatment chamber containing said chemical treatment, wherein said cartridge includes an aperture, and wherein said aperture is aligned with said treatment chamber when said cartridge is in said open position and is out of alignment with said treatment chamber when said cartridge is in said closed position.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/073,108 | 1993-06-08 | ||
| US08/073,108 US5807359A (en) | 1993-06-08 | 1993-06-08 | Medical suction system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2125451A1 true CA2125451A1 (en) | 1994-12-09 |
Family
ID=22111781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002125451A Abandoned CA2125451A1 (en) | 1993-06-08 | 1994-06-08 | Medical suction system |
Country Status (2)
| Country | Link |
|---|---|
| US (5) | US5807359A (en) |
| CA (1) | CA2125451A1 (en) |
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| WO1997026928A1 (en) | 1996-01-24 | 1997-07-31 | Radford Fred R | Contaminated medical waste disposal system and method |
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-
1993
- 1993-06-08 US US08/073,108 patent/US5807359A/en not_active Expired - Lifetime
-
1994
- 1994-06-08 CA CA002125451A patent/CA2125451A1/en not_active Abandoned
-
1998
- 1998-09-14 US US09/152,632 patent/US5931822A/en not_active Expired - Lifetime
-
1999
- 1999-06-11 US US09/330,730 patent/US6368310B1/en not_active Expired - Lifetime
-
2002
- 2002-04-04 US US10/116,455 patent/US6673055B2/en not_active Expired - Lifetime
-
2003
- 2003-12-23 US US10/744,161 patent/US7115115B2/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997026928A1 (en) | 1996-01-24 | 1997-07-31 | Radford Fred R | Contaminated medical waste disposal system and method |
| EP0959910A1 (en) * | 1996-01-24 | 1999-12-01 | Fred R. Radford | Contaminated medical waste disposal system and method |
| EP0959910A4 (en) * | 1996-01-24 | 2000-03-01 | Fred R Radford | Contaminated medical waste disposal system and method |
Also Published As
| Publication number | Publication date |
|---|---|
| US5807359A (en) | 1998-09-15 |
| US6368310B1 (en) | 2002-04-09 |
| US5931822A (en) | 1999-08-03 |
| US20040138632A1 (en) | 2004-07-15 |
| US7115115B2 (en) | 2006-10-03 |
| US6673055B2 (en) | 2004-01-06 |
| US20020111592A1 (en) | 2002-08-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |