US3236236A - Tracheotomy mask - Google Patents

Tracheotomy mask Download PDF

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Publication number
US3236236A
US3236236A US257900A US25790063A US3236236A US 3236236 A US3236236 A US 3236236A US 257900 A US257900 A US 257900A US 25790063 A US25790063 A US 25790063A US 3236236 A US3236236 A US 3236236A
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United States
Prior art keywords
tubing
mask
shaped top
top wall
flanges
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Expired - Lifetime
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US257900A
Inventor
Allan C Hudson
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Teleflex Medical Inc
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Hudson Oxygen Therapy Sales Co
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Priority to US257900A priority Critical patent/US3236236A/en
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    • 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
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/04—Tracheal tubes
    • A61M16/0465—Tracheostomy tubes; Devices for performing a tracheostomy; Accessories therefor, e.g. masks, filters
    • 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
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/04—Tracheal tubes
    • A61M16/0488—Mouthpieces; Means for guiding, securing or introducing the tubes
    • A61M16/0497—Tube stabilizer
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S128/00—Surgery
    • Y10S128/912—Connections and closures for tubes delivering fluids to or from the body

Definitions

  • the mask of this invention which may be used for either tracheotomy or laryngectomy, solves several prob-- lems.
  • the present invention provides a swiveling tubing adapter that can be moved to either side for a prone patient and can be swung to a down position where a sitting patient may use it.
  • Another problem solved by the invention is that of providing a mask through which suction devices are conveniently inserted, and it does this by providing a novel central opening serving the double purpose of an exhalation opening and an insertion opening for suction tubes or other instruments.
  • the mask itself is easily removed if it is desired to use other apparatus which will not go through the opening, but with this invention removal is rarely required for this purpose.
  • Another object of the invention is to provide a tracheotomy mask which can be made disposable.
  • Another one is to provide a tracheotomy mask that is very comfortable for the patient.
  • FIG. 1 is a view in perspective of a tracheotomy mask embodying the principles of the invention.
  • FIG. 2 is a fragmentary view in perspective showing the mask on a patient.
  • FIG. 3 is a view in rear elevation of the mask of FIG. 1.
  • FIG. 4 is a view in section taken along the line 4-4 in FIG. 3.
  • the mask of the present invention incorporates a soft plastic body 11 made of a single unitary molded piece of polyethylene or similar plastic having an anatomical molding to fit smoothly around a persons throat (see FIG. 1).
  • the body 11 is provided with a soft inturned flange 12 that follows a closed curve to seal off an area of the throat but to do so comfortably.
  • the body 11 is provided with a pair of tab-like projections 13 having openings 14 in which a strap 15 of elastic or other suitable material is secured for holding the mask 10 on the patent with the flange 12 snugly engaged.
  • the area 16 enclosed by the soft flange 12 extends outwardly away from the throat so that only the flange 12 touches the throat. At a generally central portion of the area 16 is an open tubular circular cylindrical projection 17.
  • a tubing adapter member 20 is provided as a separate piece of a harder kind of molded plastic more rigid than the body 20. It is provided with a circular cylindrical portion 21 having a pair of spaced-apart end flanges 22 and 23 at the opposite inner and outer ends, about the same distance apart or slightly more so than the length of the body projection 17 of the body.
  • the flexible projection 17 is stretched around the inner flange 22 and snaps back in between the two flanges 22 and 23, so that the tubing adapter 20 can be rotated freely or swivel 3,236,236 Patented Feb. 22, 1966 around relative to the body 11, and yet is held firmly at all times by the flanges 22 and 23 and the portion 21.
  • the tubing adapter 20 is provided with a frustoconical portion 24 that is preferably coaxial with the cylindrical portion 21.
  • the portion 24 terminates in an annular end wall 25 which provides a circular opening 26 suitable for exhalation and also for the insertion of suction instruments. Being centered with respect to the body 11, the opening 26 provides great convenience for inserting such instruments.
  • a slightly tapered but generally cylindrical tubing 27 projects at a right angle to the axis of the frustum 24.
  • the tube 27 is part of the one-piece adapter 20, which is molded as a unit. This projection 27 is adapted for attachment to a suitable hose or tubing 28 which comes from the source 29 of oxygen or air being supplied to the patient.
  • the body portion 17 is simply stretched and snapped around the tubing adapter portion 21 and then swivels freely therearound.
  • the mask 10 is placed over the patients throat centered around the tracheotomy opening with the strap being adjusted to provide the desired tightness.
  • the tubing adapter 20 is swiveled to put the tubing 27 at whatever side or position is most comfortable for the patient; it can also be adjusted while it is in use.
  • the oxygen supply 29 may be on either side of the bed 30, if the patient is prone, or on either side of a chair, if the patient is sitting, and the tubing 27 may be at one side or directly below or at the top, as desired, in any position that is most comfortable and most efllcient and convenient.
  • the exhalation air passes out through the opening 26 and through this same opening may be inserted any tubes for suction or other instruments that may be desired.
  • a tracheotomy mask including in combination:
  • tubing adapter consisting of a shell having a cylindrical portion with flanges at an inner end and an outer end thereof, said tubular projection of said body being stretched and snapped into place therearound between the two flanges, so that the tubing adapter is rotatable with respect to the body and can be swiveled to any position, said tubing adapter having an unobstructed exhalation opening therethrough and a short tubing portion projecting out at right angles to the axis of the cylindrical portion, adapted for connection to an oxygen hose.

Description

Feb. 22, 1966 c, HUDSON 3,236,236
TRACHEOTOMY MASK Filed Feb. 12, 1965 2 Sheets-Sheet 1 INVENTOR. ALLA/V 6. HUDSON 0am. "MM
ATTORNEYS Feb. 22, 1966 A. c. HUDSON 3,236,236
TRACHEOTQMY MASK Filed Feb. 12, 1963 2 Sheets-Sheet 2 INVENTOR. ALLA/V C. HUDSON in-Lu AT TOR/VEYS United States Patent M 3,236,236 TRACHEOTOMY MASK Allan C. Hudson, Los Angeles, Calif., assignor to Hudson Oxygen Therapy Sales Company, Los Angeles, Calif., a corporation of California Filed Feb. 12, 1963, Ser. No. 257,900 2 Claims. (Cl. 128-185) This invention relates to an improved tracheotomy mask.
The mask of this invention, which may be used for either tracheotomy or laryngectomy, solves several prob-- lems. One is that in the tracheotomy masks heretofore in use, the oxygen tube had to be connected to a single particular fitting on one side of the mask, an inconvenience in that often the other side would have been more convenient, and for a sitting patient neither side was as good as the lower end. The present invention provides a swiveling tubing adapter that can be moved to either side for a prone patient and can be swung to a down position where a sitting patient may use it.
Another problem solved by the invention is that of providing a mask through which suction devices are conveniently inserted, and it does this by providing a novel central opening serving the double purpose of an exhalation opening and an insertion opening for suction tubes or other instruments. The mask itself is easily removed if it is desired to use other apparatus which will not go through the opening, but with this invention removal is rarely required for this purpose.
Another object of the invention is to provide a tracheotomy mask which can be made disposable.
Another one is to provide a tracheotomy mask that is very comfortable for the patient.
Other objects and advantages of the invention will appear from the following description of a preferred embodiment thereof.
In the drawings:
FIG. 1 is a view in perspective of a tracheotomy mask embodying the principles of the invention.
FIG. 2 is a fragmentary view in perspective showing the mask on a patient.
FIG. 3 is a view in rear elevation of the mask of FIG. 1.
FIG. 4 is a view in section taken along the line 4-4 in FIG. 3.
The mask of the present invention incorporates a soft plastic body 11 made of a single unitary molded piece of polyethylene or similar plastic having an anatomical molding to fit smoothly around a persons throat (see FIG. 1). The body 11 is provided with a soft inturned flange 12 that follows a closed curve to seal off an area of the throat but to do so comfortably. The body 11 is provided with a pair of tab-like projections 13 having openings 14 in which a strap 15 of elastic or other suitable material is secured for holding the mask 10 on the patent with the flange 12 snugly engaged. The area 16 enclosed by the soft flange 12 extends outwardly away from the throat so that only the flange 12 touches the throat. At a generally central portion of the area 16 is an open tubular circular cylindrical projection 17.
A tubing adapter member 20 is provided as a separate piece of a harder kind of molded plastic more rigid than the body 20. It is provided with a circular cylindrical portion 21 having a pair of spaced- apart end flanges 22 and 23 at the opposite inner and outer ends, about the same distance apart or slightly more so than the length of the body projection 17 of the body. The flexible projection 17 is stretched around the inner flange 22 and snaps back in between the two flanges 22 and 23, so that the tubing adapter 20 can be rotated freely or swivel 3,236,236 Patented Feb. 22, 1966 around relative to the body 11, and yet is held firmly at all times by the flanges 22 and 23 and the portion 21.
Beyond the outer flange 23, the tubing adapter 20 is provided with a frustoconical portion 24 that is preferably coaxial with the cylindrical portion 21. The portion 24 terminates in an annular end wall 25 which provides a circular opening 26 suitable for exhalation and also for the insertion of suction instruments. Being centered with respect to the body 11, the opening 26 provides great convenience for inserting such instruments.
From the wall of the frustoconical portion 24 a slightly tapered but generally cylindrical tubing 27 projects at a right angle to the axis of the frustum 24. The tube 27 is part of the one-piece adapter 20, which is molded as a unit. This projection 27 is adapted for attachment to a suitable hose or tubing 28 which comes from the source 29 of oxygen or air being supplied to the patient.
In assembly, the body portion 17 is simply stretched and snapped around the tubing adapter portion 21 and then swivels freely therearound. In use, the mask 10 is placed over the patients throat centered around the tracheotomy opening with the strap being adjusted to provide the desired tightness. Then the tubing adapter 20 is swiveled to put the tubing 27 at whatever side or position is most comfortable for the patient; it can also be adjusted while it is in use. Thus the oxygen supply 29 may be on either side of the bed 30, if the patient is prone, or on either side of a chair, if the patient is sitting, and the tubing 27 may be at one side or directly below or at the top, as desired, in any position that is most comfortable and most efllcient and convenient. The exhalation air passes out through the opening 26 and through this same opening may be inserted any tubes for suction or other instruments that may be desired.
To those skilled in the art to which this invention relates, many changes in construction and widely differing embodiments and applications of the invention will suggest themselves without departing from the spirit and scope of the invention. The disclosures and the description herein are purely illustrative and are not intended to be in any sense limiting.
I claim:
1. A tracheotomy mask including in combination:
( l) a flexible plastic body having an outwardly bulged forward wall, a relatively fiat horizontal crescent shaped top wall inturned from said forward wall and providing a curved inner edge and an elongated chamber therebeneath, and the lower edge of said body lying forward of said crescent shaped top wall at the center of the mask and curving rearwardly to fit around the lower throat and opening for the trachea thence upwardly and rearwardly to embrace opposite sides of the throat and adjoin with the remote ends of said crescent-shaped top wall providing at said juncture relatively flat tab-like attaching portions, a substantially continuous flexible sealing flange extending inwardly from said edges over said tab-like attaching portion, and a tubular projection carried by the bulged forward wall of said body between said edges, and
(2) a tubing adapter consisting of a shell having a cylindrical portion with flanges at an inner end and an outer end thereof, said tubular projection of said body being stretched and snapped into place therearound between the two flanges, so that the tubing adapter is rotatable with respect to the body and can be swiveled to any position, said tubing adapter having an unobstructed exhalation opening therethrough and a short tubing portion projecting out at right angles to the axis of the cylindrical portion, adapted for connection to an oxygen hose.
3 2. The tracheotomy mask of claim 1, in which said relatively fiat tab-like portions have strap-anchorage portions beyond said sealing flanges thereon.
References Cited by the Examiner UNITED STATES PATENTS 1,139,850 5/1915 Conkl-e 128145 1,840,112 1/1932 Lane 31.3 2,254,854 9/1941 OConnell 128-146 X 4 2,860,633 11/1958 Phillips 128-188 2,989,960 6/1961 Hay 128-188 3,042,035 7/ 1962 Coanda 128-146 FOREIGN PATENTS 79,647 12/ 1919 Austria. 956,022 1/1957 Germany.
RICHARD A. GAUDET, Primary Examiner.
JORDAN FRANKLIN, Examiner.

Claims (1)

1. A TRACHEOTOMY MASK INCLUDING IN COMBINATION: (1) A FLEXIBLE PLASTIC BODY HAVING AN OUTWARDLY BULGED FORWARD WALL, A RELATIVELY FLAT HORIZONTAL CRESCENT SHAPED TOP WALL INTURNED FROM SAID FORWARD WALL AND PROVIDING A CURVED INNER EDGE AND AN ELONGATED CHAMBER THEREBENEATH, AND THE LOWER EDGE OF SAID BODY LYING FORWARD OF SAID CRESCENT SHAPED TOP WALL AT THE CENTER OF THE MASK AND CURVING REARWARDLY TO FIT AROUND THE LOWER THROAT AND OPENING FOR THE TRACHEA THENCE UPWARDLY AND REARWARDLY TO EMBRACE OPPOSITE SIDES OF THE THROAT AND ADJOIN WITH THE REMOTE ENDS OF SAID CRESCENT-SHAPED TOP WALL PROVIDING AT SAID JUNCTURE RELATIVELY FLAT TAB-LIKE ATTACHING PORTIONS, A SUBSTANTIALLY CONTINUOUS FLEXIBLE SEALING FLANGE EXTENDING INWARDLY FROM SAID EDGES OVER SAID TAB-LIKE ATTACHING PORTION, AND A TUBULAR PROJECTION CARRIED BY THE BULGED FORWARD WALL OF SAID BODY BETWEEN SAID EDGES, AND (2) A TUBING ADAPTER CONSISTING OF A SHELL HAVING A CYLINDRICAL PORTION WITH FLANGES AT AN INNER END AND AN OUTER END THEREOF, AND TUBULAR PROJECTION OF SAID BODY BEING STRETCHED AND SNAPPED INTO PLACE THEREAROUND BETWEEN THE TWO FLANGES, SO THAT THE TUBING ADAPTED IS ROTATABLE WITH RESPECT TO THE BODY AND CAN BE SWIVELED TO ANY POSITION, SAID TUBING ADAPTER HAVING AN UNOBSTRUCTED EXHALATION OPENING THERETHROUGH AND A SHORT TUBING PORTION PROJECTING OUT AT RIGHT ANGLES TO THE AXIS OF THE CYLINDRICAL PORTION, ADAPTED FOR CONNECTION TO AN OXYGEN HOSE.
US257900A 1963-02-12 1963-02-12 Tracheotomy mask Expired - Lifetime US3236236A (en)

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Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3667475A (en) * 1971-05-10 1972-06-06 Nat Equipment Research Inc Endo-tracheal tube adaptors for use in administering gases
DE2227094A1 (en) * 1971-06-11 1972-12-14 Sandoz Ag, Basel (Schweiz) Air pipe mask
US3824999A (en) * 1972-09-18 1974-07-23 Sandoz Ag Tracheotomy mask
US4033353A (en) * 1975-10-16 1977-07-05 International Paper Company Tracheostomy tube
US4041936A (en) * 1975-04-23 1977-08-16 Medical Engineering Corporation Bronchoscopy tube
US4045058A (en) * 1971-09-20 1977-08-30 Instrumentation Industries, Inc. Slip-proof coupling device
US4274406A (en) * 1979-09-04 1981-06-23 Bartholomew Victor L Tracheotomy mask
US4351328A (en) * 1980-03-27 1982-09-28 Sontek Industries, Inc. Simultaneous respiration and endotracheal suctioning of a critically ill patient
US4938209A (en) * 1989-01-12 1990-07-03 Fry William J Mask for a nebulizer
US5022394A (en) * 1988-10-11 1991-06-11 Homecare Of Dearborn Heat and moisture exchanger device for tracheostomy patients
US5027811A (en) * 1990-06-04 1991-07-02 Tuxill Judith D Tracheostomy chamber having adapter for suction capability
US5279486A (en) * 1993-03-31 1994-01-18 Harmon Elbert C Medical support device
US5282463A (en) * 1991-09-13 1994-02-01 Hammer-Plane, Inc. Anti-disconnect apparatus and method, for breathing systems
US5458139A (en) * 1993-08-30 1995-10-17 Susan O. Pearl Low profile tracheostomy tube assembly
US5485837A (en) * 1993-11-23 1996-01-23 Solesbee; Angela M. Strap for combining tracheotomy tube and moist air mask
US5975080A (en) * 1998-01-22 1999-11-02 Hammer-Plane, Inc. Retention system for anti-disconnect apparatus and method, for breathing systems
US6009872A (en) * 1998-01-22 2000-01-04 Hammer-Plane, Inc. Retention system for anti-disconnect apparatus and method, for breathing systems
US6053167A (en) * 1995-04-24 2000-04-25 Tracoe Gesellschaft fu medizinische Tracheostomy cannula
US6105573A (en) * 1998-01-22 2000-08-22 Hammer-Plane, Inc. Hook and pile retention system for anti-disconnect apparatus and method, for breathing systems
US6371115B1 (en) 1999-02-26 2002-04-16 Siemens Elema Ab Device for the supply of a gas from a respirator/anaesthesia device to a bedridden patient
US20040154622A1 (en) * 2003-02-10 2004-08-12 Davis Billy B. Endotracheal tube and an apparatus, and method of making same, for securing an endotracheal tube
US20050257791A1 (en) * 2004-05-21 2005-11-24 Biederman Paul D Capnography measurement adapter and airway mask system
US20070107723A1 (en) * 2005-11-15 2007-05-17 Maraha Berg Pediatric tracheostomy mask
US8464718B2 (en) 2011-02-16 2013-06-18 Covidien Lp Neck flange attachment apparatuses for tracheostomy tubes
CN103736189A (en) * 2014-01-28 2014-04-23 上海市奉贤区中心医院 Tracheal cutting cannula

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1139850A (en) * 1914-10-20 1915-05-18 Charles H Conkle Mask for divers.
AT79647B (en) * 1913-09-05 1919-12-29 O Neupert Nachfolger Fa Device for resuscitation of persons through artificial respiration with a bottle of oxygen or oxygen-rich air via a blowing and suction device with mask.
US1840112A (en) * 1927-12-17 1932-01-05 Bell Telephone Labor Inc Artificial larynx
US2254854A (en) * 1941-05-16 1941-09-02 Harold V O'connell Anesthetic administering device
DE956022C (en) * 1954-12-30 1957-01-10 Draegerwerk Ag Respirator
US2860633A (en) * 1956-08-17 1958-11-18 John W Phillips Compound swivel adaptor and coupling for anesthesia
US2989960A (en) * 1958-12-23 1961-06-27 Air Reduction Adapter fitting for anesthetic administering circuits
US3042035A (en) * 1958-12-09 1962-07-03 Baxter Don Inc Mask

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT79647B (en) * 1913-09-05 1919-12-29 O Neupert Nachfolger Fa Device for resuscitation of persons through artificial respiration with a bottle of oxygen or oxygen-rich air via a blowing and suction device with mask.
US1139850A (en) * 1914-10-20 1915-05-18 Charles H Conkle Mask for divers.
US1840112A (en) * 1927-12-17 1932-01-05 Bell Telephone Labor Inc Artificial larynx
US2254854A (en) * 1941-05-16 1941-09-02 Harold V O'connell Anesthetic administering device
DE956022C (en) * 1954-12-30 1957-01-10 Draegerwerk Ag Respirator
US2860633A (en) * 1956-08-17 1958-11-18 John W Phillips Compound swivel adaptor and coupling for anesthesia
US3042035A (en) * 1958-12-09 1962-07-03 Baxter Don Inc Mask
US2989960A (en) * 1958-12-23 1961-06-27 Air Reduction Adapter fitting for anesthetic administering circuits

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3667475A (en) * 1971-05-10 1972-06-06 Nat Equipment Research Inc Endo-tracheal tube adaptors for use in administering gases
DE2227094A1 (en) * 1971-06-11 1972-12-14 Sandoz Ag, Basel (Schweiz) Air pipe mask
US4045058A (en) * 1971-09-20 1977-08-30 Instrumentation Industries, Inc. Slip-proof coupling device
US3824999A (en) * 1972-09-18 1974-07-23 Sandoz Ag Tracheotomy mask
US4041936A (en) * 1975-04-23 1977-08-16 Medical Engineering Corporation Bronchoscopy tube
US4033353A (en) * 1975-10-16 1977-07-05 International Paper Company Tracheostomy tube
US4274406A (en) * 1979-09-04 1981-06-23 Bartholomew Victor L Tracheotomy mask
US4351328A (en) * 1980-03-27 1982-09-28 Sontek Industries, Inc. Simultaneous respiration and endotracheal suctioning of a critically ill patient
US5022394A (en) * 1988-10-11 1991-06-11 Homecare Of Dearborn Heat and moisture exchanger device for tracheostomy patients
US4938209A (en) * 1989-01-12 1990-07-03 Fry William J Mask for a nebulizer
US5027811A (en) * 1990-06-04 1991-07-02 Tuxill Judith D Tracheostomy chamber having adapter for suction capability
US5282463A (en) * 1991-09-13 1994-02-01 Hammer-Plane, Inc. Anti-disconnect apparatus and method, for breathing systems
US5279486A (en) * 1993-03-31 1994-01-18 Harmon Elbert C Medical support device
US5458139A (en) * 1993-08-30 1995-10-17 Susan O. Pearl Low profile tracheostomy tube assembly
US5485837A (en) * 1993-11-23 1996-01-23 Solesbee; Angela M. Strap for combining tracheotomy tube and moist air mask
US6053167A (en) * 1995-04-24 2000-04-25 Tracoe Gesellschaft fu medizinische Tracheostomy cannula
US6105573A (en) * 1998-01-22 2000-08-22 Hammer-Plane, Inc. Hook and pile retention system for anti-disconnect apparatus and method, for breathing systems
US6009872A (en) * 1998-01-22 2000-01-04 Hammer-Plane, Inc. Retention system for anti-disconnect apparatus and method, for breathing systems
US5975080A (en) * 1998-01-22 1999-11-02 Hammer-Plane, Inc. Retention system for anti-disconnect apparatus and method, for breathing systems
US6371115B1 (en) 1999-02-26 2002-04-16 Siemens Elema Ab Device for the supply of a gas from a respirator/anaesthesia device to a bedridden patient
US20040154622A1 (en) * 2003-02-10 2004-08-12 Davis Billy B. Endotracheal tube and an apparatus, and method of making same, for securing an endotracheal tube
US20050257791A1 (en) * 2004-05-21 2005-11-24 Biederman Paul D Capnography measurement adapter and airway mask system
US7500482B2 (en) * 2004-05-21 2009-03-10 Biederman Paul D Capnography measurement adapter and airway mask system
US20070107723A1 (en) * 2005-11-15 2007-05-17 Maraha Berg Pediatric tracheostomy mask
US8464718B2 (en) 2011-02-16 2013-06-18 Covidien Lp Neck flange attachment apparatuses for tracheostomy tubes
CN103736189A (en) * 2014-01-28 2014-04-23 上海市奉贤区中心医院 Tracheal cutting cannula
CN103736189B (en) * 2014-01-28 2015-12-02 上海市奉贤区中心医院 Tracheostomy cannula

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