Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.


  1. Advanced Patent Search
Publication numberUS3599639 A
Publication typeGrant
Publication dateAug 17, 1971
Filing dateAug 20, 1969
Priority dateAug 20, 1969
Publication numberUS 3599639 A, US 3599639A, US-A-3599639, US3599639 A, US3599639A
InventorsSpotz Donald R
Original AssigneeBorg Warner
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Portable suction pump system
US 3599639 A
Abstract  available in
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

I United States Patent 1 3,599,639

[72] Inventor Donald R. Spoil 1,955,140 4/1934 McKesson 128/276 Cleveland, Ohio 3,1 12,061 11/1963 Breer 128/278 [21] Appl. No. 851,686 3,142,298 7/1964 Koski et a1... 128/276 [22] Filed Aug. 20, 1969 3,429,313 2/1969 Romanelli 128/276 [45] Patented Aug. 17, 1971 Prime ry Examiner-Charles F. Rosenbaum [73] Assignee Borg-Warner Corporation Atwmey Aubrey L. Burgess Chicago, Ill.

[54] PORTABLE SUCTION PUMP SYSTEM 7 Claims, 2 Drawing Figs.

[52] US. Cl 128/276, ABSTRACT: A m suction of vacuum pump system 137/205 especially for medical use, which meets the requirements of [51] Int. Cl A6lm 1/00 pharyngcal and tracheal suctioning (high suction 1 n [50] Field of Search 128/276- gastric decompression or stomach pumping (model-ale 278; 137/205 tion, low flow and cyclic operation), and pleural suctioning (low suction, high flow). Operation is by batteries, external [56] Rderences cued DC or external AC by use of a power converter. A vacuum UNITED STATES PATENTS regulator and pump characteristics permit the various com- 1,843, 169 2/1932 McKesson 128/276 binations ofsuction and flow.

VACUUM GAUGE? AIR FILTER Tuee FLOAT m EX FITTING VALVE 19 i MUFFLER MR L W- -F-Q 24 23 CHECK 17- -16 VALVE PRESSURE V T VACUUM 15 SWITCH 2o VACUUM BOTTLE VACUUM PUMP REGULATOR VALVE PATENTED AUG I 7 mm 21 AIR FHJTER q- 19 W MUFFLER EXHAUST VACUUM pump BATTERY TIM ER 26 .1- BA TERY CASE PLUG LOW VOLTAGE SWITCH INVENTOR DOA 440A? SW72 AT'TO RN PORTABLE SUCTION PUMP SYSTEM BACKGROUND OF THE INVENTION THE INVENTION The pumping system herein designed is portable, and because, of its component parts and their arrangement, is capable of providing various combinations of suction and flow, as required in medical use and especially in the field and is capable of operation from various power sources.

THE DRAWINGS FIG. 1 is a diagrammatic illustration of the vacuum circuit of the system of this invention; and

-' FIG. 2 is an electrical schematic associated with the system.

THE PREFERRED EMBODIMENT Looking at the drawings, there is diagrammatically illustrated the suction or vacuum part of the system in FIG. I and the electrical part of the system in [0. 2. In the system, a DC motor ll is coupled to a suction pump 12 preferably of the vane ,type in which the vanes and rotor are carbon and the remaining parts are constructed of corrosion resistant materials. In order to eliminate some servicing (except for periodic cleaning of the pump), the pump is preferably constructed with bearings which are grease lubricated for life. The carbon vanes also require no lubrication. While this general type of pump is preferred, other types of suction pumps can be used in the system if necessary or desirable. The motor 11 can-be energized by battery or from an external power source, as will later be described. I

. Thesuction or vacuum part of the system includes, in addition to the pump 12, a noise muffler 13 connected to the out let of the pump by a conduit 14, and a bottle or container 15 connected to the inlet of the pump by a conduit 16. A conduit 17 from the bottle 15 permits selective coupling of the bottle 15 to a pumping field. The bottle or container 15 acts as a suction orvacuum reservoir as well as a container for drain fluids, as will be described. I

In the line 16, there are an air filter and trap 18, a check valve 1 9, a vacuum regulator 20, a vacuum gauge 21-, a vacuum switch 22, a float valve 23, and a pressure vent valve 24.

The check valve 19 and the pressure vent valve 24 are of conventional construction. as for example a spring biased ball or member which when seated prohibits the passage of fluid there through and which when unseated permits the discharge offluid in one direction.

The 'floatvalve 23 is also ofconvent ional construction. For example, the valve may contain a float in a container which will block flow through a conduit when the fluid in the containerv reachesa certain'level.

The vacuum regulator 20 is also of conventionalconstruction inthat it contains an adjustable orifice, as forexamplea biased ball and a seat with meansto adjust'the bias. force.

Likewise, the vacuum switch 22 is of conventional'construction and includes adiaphragmconnected to a switch means, such that changes in the vacuum level'in the system cause actuation of-the switch means.

Because the variousparts are of conventionalconstruction, and well known in the art, no further detailed description is considered-necessary, it being understood that various constructions other than that described above could'be used'if their functions are equivalent.

In operation, the motor 11 effects rotation of the rotor (not shown) of the pump 12 resulting in the exhaustion of air through the noise muffler 13. To permit both a preselected suction limit in the bottle or container 15, as well as cyclic operation when necessary or desirable, other elements are included in the flow line or conduit 16. The vacuum regulator 20 permits the selection of a vacuum level at the bottle 15 by bleeding outside air into the system. at the selected level of vacuum and thus preventing excessive vacuum level. A vacuum switch 22 controls the energization of the motor 11 for cyclic operation, switching the motor on at a low value of vacuum and switching the motor off at the preset value, both values being factor set, while the vacuum gauge 21 indicates, for visual observation, the level of the vacuum in the bottle 15.

Accordingly, once thebottle 15 is evacuated to a'selected level, and air is'not permitted to enterthe system through the line or conduit 17, the level of vacuum in the bottle 15 remains, even through air flows to the pump 12.

The float valve 23 prevents fluid which has been collected or is collecting in the bottle 15 from travelling from the bottle to the pump 12. Thus, even if the container 15 is overfilled with fluids, and fluid reaches the float valve, the valve prevents flow of these fluids to the pump 12 by closing the conduit 16 to the pump.

Under certain circumstances, for example in pleural cavity suctioning, a pressure can be developed in the pumping field when a person breathes if the vacuum pump is not operating, which pressure must be vented to the atmosphere. Also, in the event of sudden reduced atmospheric pressure, as in the case of an aircraft pressurized cabin rupture, fluids may be forced back into the patient if the pressure difi'erential is not relieved. For these functions, the pressure vent valve 24 is provided.

Attention now directed to FIG. 2 of the drawings showing the electrical part of the system being described. This part includes the motor 11 connected through a three-position ganged selector switch 25 to alternative power sources, i.e., an internal battery 26 or to an external source (not shown) through a case plug 27. Between the positive side of the power source and the motor is an off-on switch 28. Preferably, the internal battery is rechargeable, as for example of the silver cadmium type. The external power supply unit, one which can be operatedfrom an AC source but which will supply DC to the motor 11 and regulated charging power to the battery. External power can also be any source of DC of correct voltage.

As is illustrated, the selector switch 25 has three positions. When in the No.1 position, currentis supplied from the external power source and also'the battery is charged if connected to a combination-battery charger power supply.

When in the NO. 2 position, current is supplied by the battery 26. This circuit includes an elapsed time timer 29 which indicates the length of time the system has been operating on the battery 26 and which indicates to the operator a need for battery recharging. The battery circuit includes a low voltage cutofl switch 30 which is responsive to battery voltage and which will cut off the motor 11 when the voltage is below a predetermined level, to prevent damage to the battery 26. During startup when using the battery, a switch 28A is mementarily closed to activate the low voltage switch. A mode switch 31, movable betweenopen and closed positions in- In-order-to indicate to the observer whether or not the unit is. in operation, a pilot light 32 is connected in parallel to the motor I1.

Attesting tothe portability of a unit incorporating the variousparts'enumerated, a self-contained, battery operated unit is'hou'sed in a shock-resistant aluminum case which is water tight when closed. Typical dimensions of such a case are 9 inches X 9%inches X l3 inches. Using a 20 volt battery pack of six 3.3 volt silver-cadmium batteries, rated 5.0 ampere hours, new batteries will provide about seven hours operation at a inch suction value. In the cased system, the collection container is capable of holding about 1600 cc of fluid. Such a unit weighs about I? pounds. 1

I claim:

1.. A suction pump system especially adaptable for medical use comprising a suction pump having an inlet and an outlet, said inlet being connected to a fitting for use with a patient;

means to drive said pump;

means including a power source for energizing said driving means;

a fluid collection and suction container connected between said pump inlet and to said fitting;

a check valve connected between said container and said inlet to permit air flow to said inlet and to prevent air flow to said container;

a regulator connected between said check valve and said container to regulate the degree of suction in said container;

a gauge connected between said check valve and said container to indicate the degree of suction in said container;

a vacuum switch connected between said check valve and said container for controlling the operation of said driving means;

a float valve connected between said check valve and said container for preventing fluid flow from said container to said pump; and

a vent valve connected to said container to permit exhaust from said container to the atmosphere.

2. A suction pump system as recited in claim 1 wherein said power source comprises battery means.

3. A suction pump system as recited in claim 2 wherein said battery means is rechargeable and said power source further comprises means to recharge said battery means.

4. A suction pump system as recited in claim 1 wherein said power means is external and comprises a source of DC current.

5. A suction pump system as recited in claim 1 wherein said power source is external and comprises a source of AC current.

6. A suction pump system as recited in claim 1 wherein said power source is internal and comprises a battery means, and said system further comprises a timer for indicating the length of time said battery means is operated.

7. A suction pump system as recited in claim 1 wherein said power source is internal and comprises a battery means, and said system further comprises a voltage cutout for stopping said motor when the voltage of said battery means reaches a predetermined level.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US1843169 *Apr 20, 1925Feb 2, 1932Elmer I MckessonFlow handling for surgical treatments
US1955140 *Dec 31, 1928Apr 17, 1934Isaac Mckesson ElmerWound treatment
US3112061 *Apr 27, 1960Nov 26, 1963Carl BreerBody liquid collector appliance
US3142298 *Jan 29, 1962Jul 28, 1964Koski William LStomach pump apparatus
US3429313 *Feb 1, 1966Feb 25, 1969Ram Domestic Products CoMedical drainage pump
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3665919 *Nov 23, 1970May 30, 1972Laerdal A SSuction apparatus
US3853128 *Jul 10, 1972Dec 10, 1974Deknated IncValved underwater drainage apparatus
US3920014 *Jun 3, 1974Nov 18, 1975Banko AntonSurgical system for controlling the infusion of fluid to and the evacuation of fluid and material from an operating field
US3963027 *Nov 15, 1974Jun 15, 1976Health Technology Labs, Inc.Medical/surgical suction equipment
US4007742 *Nov 17, 1975Feb 15, 1977Surgical Design Corporation.Surgical system for controlling the infusion of fluid to and the evacuation of fluid and material from an operating field
US4019514 *Nov 17, 1975Apr 26, 1977Surgical Design CorporationSurgical system for controlling the infusion of fluid to and the evacuation of fluid and material from an operating field
US4020840 *Sep 15, 1975May 3, 1977Richard Wolf GmbhDevice for catheterizing the bladder
US4057364 *Dec 12, 1975Nov 8, 1977John BratschitschFluid transfer systems and valves therefor
US4687021 *Oct 16, 1985Aug 18, 1987Myotoku Ltd.Vacuum valve-sensor device
US4718895 *Jan 6, 1987Jan 12, 1988Bioresearch Inc.Suction regulator
US4795428 *Mar 30, 1987Jan 3, 1989Hwang Shyh ChyiTherapeutic suction device
US4930997 *Aug 19, 1987Jun 5, 1990Bennett Alan NPortable medical suction device
US5042518 *Oct 25, 1990Aug 27, 1991Singhe Upenda WLiquid elimination system for vacuum line
US5242404 *Feb 12, 1992Sep 7, 1993American Cyanamid CompanyAspiration control system
US5419768 *Mar 7, 1991May 30, 1995Aeros Instruments, Inc.Electrical medical vacuum regulator
US5429601 *Aug 11, 1993Jul 4, 1995American Cyanamid CompanyAspiration control system
US5549139 *May 23, 1995Aug 27, 1996Storz Instrument CompanyPneumatic controls for ophthalmic surgical system
US5590678 *Aug 4, 1995Jan 7, 1997F & F Filter- Und Fordertechnik GmbhDevice for the disposal of liquid media
US5624394 *Oct 28, 1994Apr 29, 1997Iolab CorporationVacuum system and a method of operating a vacuum system
US5690102 *May 16, 1990Nov 25, 1997IntertechniqueHead harness for a respiratory mask
US5769242 *Dec 15, 1995Jun 23, 1998Allmineral Aufbereitungs-Technik Gmbh & Co. KgAir-pulsed jigging machine with exhaust air removal
US5795328 *Jun 12, 1996Aug 18, 1998Iolab CorporationVacuum system and a method of operating a vacuum system
US5810766 *Feb 28, 1995Sep 22, 1998Chiron Vision CorporationInfusion/aspiration apparatus with removable cassette
US5857485 *May 23, 1995Jan 12, 1999Perkins; James T.Pneumatic controls for ophthalmic surgical system
US5979494 *Nov 23, 1998Nov 9, 1999Bausch & Lomb Surgical, Inc.Pneumatic controls for ophthalmic surgical system
US6039045 *Aug 19, 1997Mar 21, 2000IntertechniqueHead harness for respiratory mask
US6662831Aug 29, 2002Dec 16, 2003Jen-Fu ChenDepression container
US6800074 *Nov 29, 2000Oct 5, 2004Hill-Rom Services, Inc.Wound treatment apparatus
US7195624Dec 20, 2002Mar 27, 2007Hill-Rom Services, Inc.Vented vacuum bandage with irrigation for wound healing and method
US7276052 *Jan 15, 2004Oct 2, 2007Nipro CorporationMedical aspirator
US7338482Dec 20, 2002Mar 4, 2008Hill-Rom Services, Inc.External catheter access to vacuum bandage
US7534927Dec 20, 2002May 19, 2009Hill-Rom Services, Inc.Vacuum bandage packing
US7678090Nov 24, 2004Mar 16, 2010Risk Jr James RWound treatment apparatus
US7723560Dec 20, 2002May 25, 2010Lockwood Jeffrey SWound vacuum therapy dressing kit
US7763000Jul 6, 2004Jul 27, 2010Risk Jr James RWound treatment apparatus having a display
US7794438Sep 14, 2010Alan Wayne HenleyWound treatment apparatus
US7815616Sep 16, 2003Oct 19, 2010Boehringer Technologies, L.P.Device for treating a wound
US7857806Apr 12, 2007Dec 28, 2010Boehringer Technologies, L.P.Pump system for negative pressure wound therapy
US7867206Sep 19, 2003Jan 11, 2011Kci Licensing, Inc.Vacuum therapy and cleansing dressing for wounds
US7896856Dec 20, 2002Mar 1, 2011Robert PetrosenkoWound packing for preventing wound closure
US7896864Mar 12, 2007Mar 1, 2011Lockwood Jeffrey SVented vacuum bandage with irrigation for wound healing and method
US7910791May 15, 2001Mar 22, 2011Coffey Arthur CCombination SIS and vacuum bandage and method
US7927318Sep 20, 2005Apr 19, 2011Risk Jr James RobertWaste container for negative pressure therapy
US7942866Aug 27, 2004May 17, 2011Boehringer Technologies, L.P.Device for treating a wound
US7981098Sep 18, 2008Jul 19, 2011Boehringer Technologies, L.P.System for suction-assisted wound healing
US7988680Feb 4, 2005Aug 2, 2011Kci Medical ResourcesVacuum therapy and cleansing dressing for wounds
US8021348Sep 5, 2006Sep 20, 2011Kci Medical ResourcesWound treatment apparatus
US8168848Dec 20, 2002May 1, 2012KCI Medical Resources, Inc.Access openings in vacuum bandage
US8246592Nov 13, 2009Aug 21, 2012Kci Medical ResourcesVacuum therapy and cleansing dressing for wounds
US8246607Sep 9, 2008Aug 21, 2012Boehringer Technologies, L.P.System for treating a wound with suction and method of detecting loss of suction
US8350116Dec 4, 2008Jan 8, 2013Kci Medical ResourcesVacuum bandage packing
US8388570 *Aug 26, 2005Mar 5, 2013Atul KumarControlled tissue cavity distending system with minimal turbulence
US8414550Apr 11, 2007Apr 9, 2013Lexion Medical, LlcSystem and method to vent gas from a body cavity
US8540687Aug 20, 2010Sep 24, 2013Kci Licensing, Inc.Wound treatment apparatus
US8585646 *Mar 3, 2008Nov 19, 2013Lexion Medical, LlcSystem and method to vent gas from a body cavity
US8608715Apr 8, 2013Dec 17, 2013Lexion Medical, LlcSystem and method to vent gas from a body cavity
US8721526Apr 30, 2012May 13, 2014Fujinon CorporationInsertion assisting device and endoscope apparatus
US8747887Oct 3, 2005Jun 10, 2014Kci Medical ResourcesCombination SIS and vacuum bandage and method
US8771259Jul 24, 2012Jul 8, 2014Boehringer Technologies, L.P.System for treating a wound with suction and method of detecting a loss of suction
US20040172512 *Dec 24, 2003Sep 2, 2004Masashi NakanishiMethod, apparatus, and computer readable medium for managing back-up
US20040249353 *Jul 6, 2004Dec 9, 2004Risks James R.Wound treatment apparatus
US20090023996 *Jun 12, 2008Jan 22, 2009Tetsuya FujikuraInsertion assisting device and endoscope apparatus
USRE29877 *Jun 22, 1977Jan 9, 1979Deknatel Inc.Valved underwater drainage apparatus
WO2007140208A2 *May 23, 2007Dec 6, 2007Nellcor Puritan Bennett IncSystems and methods for regulating power in a medical device
U.S. Classification604/119, 604/151, 137/205, 604/245
International ClassificationA61M1/00
Cooperative ClassificationA61M1/0066, A61M2205/8206
European ClassificationA61M1/00P