WO1995031249A1 - Adaptateurs, joints pour systeme d'aspiration/ventilation, et leurs procedes d'utilisation - Google Patents

Adaptateurs, joints pour systeme d'aspiration/ventilation, et leurs procedes d'utilisation Download PDF

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Publication number
WO1995031249A1
WO1995031249A1 PCT/US1995/002571 US9502571W WO9531249A1 WO 1995031249 A1 WO1995031249 A1 WO 1995031249A1 US 9502571 W US9502571 W US 9502571W WO 9531249 A1 WO9531249 A1 WO 9531249A1
Authority
WO
WIPO (PCT)
Prior art keywords
adapter
hollow
tube
proximal
rotatable
Prior art date
Application number
PCT/US1995/002571
Other languages
English (en)
Inventor
Darrel R. Palmer
Original Assignee
Ballard Medical Products
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from US08/293,009 external-priority patent/US5694922A/en
Application filed by Ballard Medical Products filed Critical Ballard Medical Products
Priority to AU19372/95A priority Critical patent/AU1937295A/en
Publication of WO1995031249A1 publication Critical patent/WO1995031249A1/fr

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Classifications

    • 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
    • A61M16/0463—Tracheal tubes combined with suction tubes, catheters or the like; Outside connections
    • 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
    • A61M16/08—Bellows; Connecting tubes ; Water traps; Patient circuits
    • A61M16/0816—Joints or connectors
    • 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
    • A61M16/08—Bellows; Connecting tubes ; Water traps; Patient circuits
    • A61M16/0816—Joints or connectors
    • A61M16/0825—Joints or connectors with ball-sockets

Definitions

  • the inventions disclosed herein relate generally to improved medical care for intubated patients, and more particularly to novel low dead space improvements, and related methods, for ventilating, aspirating, monitoring, sampling, and providing therapeutic delivery to the respiratory tract of intubated medical patients, including infants, adolescents, and adults.
  • Providing apparatus and methodology having the capacity to promptly, efficiently, safely, and cost effectively address the health care needs of intubated patients across the entire spectrum of respiratory ailments comprises, prior to the present invention, a largely unresolved need.
  • the range of procedures comprise: ventilating, aspiration, oxygenation, sampling, visual inspection, in-line sensing, pressure monitoring, flushing, and medication and/or lavage. Better protection for the health care provider has been a long-term unsatisfied need.
  • the present invention substantially alleviates the aforesaid problems of the prior art and comprises apparatus and methods by which a closed ventilating system accommodates multiple access to the respiratory system of an intubated medical patient without compromising the closed character of the system.
  • Access to the respiratory system through one or more access sites of the closed system apparatus is provided to ventilate the lungs of the patient with gas or gases, to aspirate secretions from the lungs, to oxygenate the lungs to eliminate or reduce residual co 2 therefrom, to visually inspect selected parts of the respiratory system, to sample sputum and gases, to sense parameters such as flow rates, pressure, and temperature, to flush with washing solution, and/or to administer medication, gases, and/or lavage.
  • the system can be unitized into severable and disposable components which are cost effective and accommodate good health care practices while promoting limitations on duration of use well within appropriate medical tolerances. Quick removal and replacement of discarded components is accommodated without introduction of additional risks to the patient.
  • the technology of the present invention has substantial universal application to all respiratory patients, ranging from infants to the aged.
  • Swivel fittings or adapters in the form of an elbow or other configuration, provide dual or multiple fail safe sealing structure.
  • An additional paramount object is the provision of novel apparatus and related methods by which a closed ventilating system accommodates multiple access to the respiratory system of an intubated medical patient without compromising the closed character of the system.
  • An additional object of the present invention is the provision of access through one or more access sites in a closed system respiratory apparatus to accommodate ventilating of the lungs of the patient with gas or gases, to aspirate secretions from the lungs, to oxygenate the lungs to eliminate or reduce residual carbon dioxide therefrom, to visually inspect selected parts of the respiratory system, to sample sputum and gases, to sense parameters such as flow rates, pressure, and temperature, to flush with washing solution and/or to administer medication, gases, and/or lavage, and related methods.
  • An additional significant object is the provision of a closed respiratory health care system unitized into severable and disposable components which are cost effective and accommodate good health care practices while promoting limitations on duration of use well within appropriate medical tolerances.
  • a further important object of the present invention is to provide features in a respiratory health care system which avoid imposition of stress on the components and prohibit occlusion of flow pathways.
  • FIG. 1 is a fragmentary cross-section of one aspirating/ventilating apparatus embodying principles of the present invention
  • Figure 2 is a side elevation of the distal fitting or adapter of the apparatus of Figure 1;
  • Figure 3 is an exploded longitudinal cross-section through the distal fitting or adapter of Figure 1, showing the components of the adapter in their disassembled or prior-to-assembly condition;
  • Figure 4 is a cross-section of the dual seal features of the distal fitting or adapter of the apparatus of Figure 1;
  • Figure 5 is an enlarged fragmentary cross-section of the dual seal construction of the distal adapter or fitting prior to assembly.
  • Figure 6 is an enlarged fragmentary cross-section of the assembled dual seal construction forming a part of the distal adapter or fitting.
  • Figure 1 illustrates in longitudinal cross-section a multi-access apparatus, generally designated 30, for use in conjunction with the respiratory tract of an intubated medical patient ranging from infants to the aged.
  • the apparatus 30 comprises a single distal access port 32 and a plurality of proximal access ports 34 and 36.
  • access ports 32 and 36 accommodate continual cyclic patient ventilation, independent of pursuit by the health care provider of any other patient respiratory access procedure.
  • Access port 34 accommodates selective insertion and subsequent removal of an aspirating catheter assembly, the catheter tube of which may be used to remove secretions from the lungs, to replace residual carbon dioxide in the lungs with oxygen, to accommodate entry of temperature or pressure monitoring instruments or to accommodate obtaining samples of sputum or gases and/or to allow insertion of visual inspection instruments.
  • the apparatus 30 comprises a tracheal tube adapter, generally designated 44, preferably formed of injection molded rigid medical grade synthetic resinous material, such as acrylic, cyrolite, pebax, polypropylene, or the like. While any suitable adapter shape could comprise the distal fitting of the apparatus 30, the shape illustrated is that of an elbow.
  • Adapter 44 comprises a hollow female distal bell housing, generally designated 46, which comprises a stepped annular wall 48.
  • Wall 48 comprises a thickness which is generally uniform, defined by inside and outside surfaces 50 and 52.
  • the distal end of wall 48 is defined by a blunt transverse annular distal edge 54, where the bell housing comprises its largest diameter.
  • Wall 48 comprises a first reduced diameter annular step 56 comprising inside shoulder 58, and a second further reduced diameter annular step 60.
  • Annular step 60 defines a trifurcation where dual annular swivel alignment-retaining and sealing walls 62 and 63 extend distally from the juncture sites with wall 48 adjacent step or shoulder 60.
  • Walls 48, 62, and 63, where co-extensive are separated by blind annular slots 66 and 67 which open distally.
  • Walls 48, 62, and 63 are illustrated as being formed as one- piece.
  • Wall 62 comprises an interior surface 64, illustrated as being of uniform diameter, and a blunt annular transverse distal edge 66.
  • Wall 48 proximal of shoulder 60 comprises exterior annular wall 69.
  • Central wall 63 is annular and comprises inside and outside surfaces 70 and 72, respectively, of uniform diameter. Wall 63 terminates in a converging double beveled or pointed end 74.
  • Adapter 44 also comprises a second bell housing, generally designated 80, which is constructed to comprise components substantially the same as bell housing 46, although bell housing 80 is somewhat shorter in its axial length. Accordingly, the parts of bell housing 80 have been enumerated the same as bell housing 46 and no further description is needed for one skilled in the art. Bell housing 80 is illustrated as being disposed generally at 90 degrees to bell housing 46 in the illustrated elbow configuration.
  • the dual or multiple seal structure mentioned above and shown best in enlarged fragmentary cross-section in Figures 5 and 6 creates four seal sites 20, 22, 24, and 26 ( Figure 6) at the tips of the blunt edges 96 and 97 of the double male prong 102 and 103 upon entry into female blind slots 66, 67.
  • a swivel sleeve, generally designated 88, is rotatably positioned and secured within the bell housing 46.
  • Sleeve 88 comprises an annular wall 90 comprising an interior surface 92, which is generally annular, but may be slightly divergently tapered from left to right, as viewed in Figure 1 , to accommodate a press-fit but removable union with a proximal fitting of a tracheal tube, for example, in a manner generally well-known to those skilled in the art.
  • Sleeve 88 also comprises a predetermined length between blunt edge 94 at one end and blunt edges 96 and 97 at the other end. Edge 94 extends distally a short distance beyond edge 54. Edges 96 and 97 extend respectively, into slots 66 and 67, adjacent to the shoulder 60.
  • Sleeve 88 also comprises an outside surface 98, which is interrupted by an outwardly directed radially-extending retaining flange 100.
  • the location of flange 100 is selected to be adjacent step or shoulder 56 to accommodate rotation contiguous with shoulder 58.
  • Sleeve 88 also comprises a pair of spaced relatively thin integral annular sealing rib or fingers 102 and
  • Ribs 102 and 103 which sealingly fit into blind slots 66 and 67, respectively, when assembled. Ribs 102 and 103 extend proximally in an axial direction.
  • Sleeve 88 is retained in the position illustrated in Figure 1 by an annular rigid plastic collar 104 positioned between walls 48 and 90 and distally terminated in a radially directed distal flange 105.
  • the trailing edge 107 of flange 105 is radially flush with edge 94, while leading edge 109 of flange 105 is radially flush with and abuts edge 54.
  • Collar 104 is bonded to surface 106 of wall 48.
  • collar 104 functions as a bushing with flange 100 rotatably engaging the edges 58 and 113.
  • Sleeve 88 ' which is rotatably coupled to bell housing 80, is substantially identical to sleeve 88, being rotatably placed within bell housing
  • Sleeve 88 ' is enumerated identical to sleeve 88, although it will be readily apparent that the sleeve orientation is reversed, the overall length of sleeve 88 is shorter, the sleeve 88 ' extends beyond bell housing 80 and the radial flange 100 is positioned closer to slot 63. Ventilating tubing is compression fit into or over the exposed surface 115 of sleeve 88 ' . A tracheal fitting is inserted into the hollow of sleeve 88.
  • Sleeve 88 ' rotates with any rotation imposed upon the connected ventilating tubing or, alternatively, retain an essentially stationary position if and when the adapter 44 is rotated, either intentionally or inadvertently in respect to sleeves 88 and 88' .
  • twisting and consequential occluding or partial occluding of ventilating tubing is avoided.
  • Adapter 44 further comprises a proximally-directed barrel, generally designated 110.
  • Proximally-directed barrel 110 comprises an annular wall 112, the exterior surface 114 of which is annular, while the interior surface 117 is illustrated as being slightly tapered divergently in a distal direction to receive, in compression-fit relation, an aspirating catheter cartridge, generally designated 116.
  • Cartridge 116 will be explained in greater detail hereinafter.
  • the interior surface 117 defines a proximal passageway, the diametral size of which is substantially smaller than either of the two previously described passageways 84 and 86.
  • Wall 112 merges at site 82 with bell housings 44 and 80, respectively, in such a way that the passageway defined by surface 117 merges distally with passageway 84.
  • catheter tube 120 is flexible along its length to accommodate smooth insertion through a tracheal tube, for example, into either lung of the patient for removal of secretions.
  • Wall 112 terminates in a blunt transverse proximal edge 122 and is formed as one piece with the other components of adapter 44, excluding swivel sleeves 88 and 88 ' and retainers 104. Edge 122 is slotted at 123 to receive a side port of cartridge 116.
  • the previously mentioned aspirating catheter cartridge or assembly 116 comprises the mentioned aspirating catheter tube 120, illustrated as being of uniform thickness and inside and outside diameter throughout, and a distal fitting, generally designated 270.
  • Fitting 270 comprises a slightly tapered distally-directed wall 272, shown as being in spaced relation to and telescopic surrounding catheter tube 120, catheter tube 120 being illustrated in Figure 1 in a withdrawn state.
  • a space or chamber 274 exists between the exterior surface of the catheter tube 120 and the interior surface 276 of wall 272.
  • Wall 272 terminates at distal blunt edge 278.
  • Inwardly-directed annular flange 278 defines a central circular opening at surface 280 through which tube 120 contiguously though slidably extends.
  • Wall 272 is interrupted by transverse opening 282, which is aligned with the hollow interior of a transverse, relatively short hollow male projection 284.
  • Projection 284 is formed as one piece with wall 272.
  • the attachment 150 connected to transverse tube 284, comprises a distal fitting, generally designated 180, which is L-shaped in configuration, as illustrated.
  • a first hollow leg 182 of fitting 180 is force-fit over barb 142 and around the exterior surface 143 of tube 140 as illustrated in Figure 1.
  • Leg 182 comprises a hollow interior 184 aligned with access port 40 through which liquid may be selectively communicated.
  • Fitting 180 comprises a second hollow leg 186, disposed, as illustrated, at approximately 90° in respect to leg 182.
  • Leg 186 comprises a hollow interior bore 188, disposed at approximately right angles to passageway 184 into which a distal end 190 of a flow accommodating tube 192 is placed, either in a compression fit relation, or so as to be bonded or plastic welded in position.
  • Tube 192 may be of any desired length.
  • Attachment 150 comprises, in addition, a proximal fitting, generally designated 200.
  • Proximal fitting 200 comprises a distal boss 202, into which proximal end 194 of tube 192 is either force-fit or secured as by plastic welding, bonding, or the like.
  • Bjoss 202 merges, at shoulder 204, into an enlarged annular wall 206.
  • Communication between the hollow interior at the proximal end 194 of tube 192 and the hollow interior 208 within wall 206 is accommodated at orifice 210, the diameter of which, is illustrated as being smaller than the inside diameter of tube 192.
  • Wall 206 is thicker at region 212, to accommodate connection of a tether 214 so as to avoid risk that the tether 214 will become severed from the wall 206, with which it is formed initially as one piece.
  • Tether 214 connects at site 216 to a press-fit cap, generally designated 218.
  • Cap 218 comprises a proximal wall or flange 220, centrally thicker at 222 to accommodate being press-fit into proximal opening 224 in the fitting 200.
  • the proximal wall 220 comprises an extension 226, which the user may manually grasp to remove the cap 218 from its closed position, which is illustrated in Figure 1.
  • Cap 218 also comprises an external annular collar 228, the interior diameter of which is slightly less than the exterior diameter of wall 206, accommodating a press-fit union, which can be manually removed when desired, but will not inadvertently separate.
  • Wall 206 defines a hollow interior cylindrical chamber surrounded by annular surface 208 in which a cylindrically shaped slit valve, generally designated 230, is disposed.
  • slit valve 230 is generally "I"- shaped, as seen in Figure 1, and comprises an end-to-end length substantially equal to the interior length of cylindrical wall 208.
  • Slit valve 230 may be formed of silicone rubber, Kraton, or the like, and comprises an annular wall
  • a contoured radially-directed double dome-shaped central wall or diaphragm 241 expands across and normally closes the space within interior surface 236.
  • Web or wall or diaphragm 230 is necked down at the annular site 242 where diaphragm 240 joins wall 232, as one piece, making annular site 242 the weakest part of wall 240, exclusive of one or more central slits 244.
  • Slit 244 may be of any desired size so as to be capable of receiving a hollow male end of an instrument therethrough, which may be utilized to serve any number of purposes.
  • respiratory medication may be applied through a hollow male projection physically inserted through slit 244, through which the medication may be dispensed under aerosol pressure or by manually-generally pressure, for example.
  • the slit 244 is illustrated as being located both at the center of the slit valve 230 and in the region of greatest thickness of wall 241.
  • the periphery yields more readily allowing somewhat of coordinated rotation in the wall at both the periphery 242 and at slit 244 when a male projection is physically forced through and removed from the slit 244 both when there is pressure and when there is no pressure at the interior site of the diaphragm 241.
  • the double domed configuration of the diaphragm 241, with the enlarged lips at the slit 244 enhances a return to the normally closed state upon removal of the male projection.
  • the attachment 150 of the aspirating catheter cartridge 116 may be used to wash the exterior and interior surfaces of the catheter tube after it is withdrawn from the patient, saline or other suitable wash solution being introduced by a hollow male projection extended through slit 244 and thence along the hollow interior of attachment 150 of catheter cartridge 116 through opening 282 into chamber 274.
  • the distal fitting 270 comprises an exposed trailing or proximal annular flange 290. which, prior to assembly comprises a collar having a hollow interior defined circumferentially by interior surface 292.
  • a sheath- holding, tube wiper compression applying double wall collar, generally designated 294 is force-fit at its distal outside wall within the hollow interior of the collar 290, after an annular washer 296 is placed within the hollow of the wall 290 so as to abut shoulder 291.
  • the disk or washer 296 is preferably formed of yieldable synthetic resinous material, such as silicone rubber, and has an inside diameter at aperture-defining surface 298 so as to compressively engage the exterior surface of the catheter tube 120.
  • the double flange fitting 294 provides a certain amount of radially compressibility, which accommodates ready compression fit insertion within wall 290 with the forward edges of inside collar wall 295 and the outside collar wall 299 holding washer 296 in the illustrated position of Figure 1 and aperture-defining surface 297 providing guidance to the catheter tube as it is displaced.
  • a collapsible, preferably transparent, plastic sheath generally designated 304 is placed over the trailing outside annular collar surface 300 of 295. Sheath end 302 is held in compression-fit relationship by a collar 306 forced over the concentrically disposed end 302 and flange surface 300.
  • the proximal end of the cartridge 116 comprises seriatim a proximal fitting 320 disposed at the end of the collapsible sleeve or envelope 304, a normally closed suction valve, generally designated 322 and an exteriorally stepped tube, generally designated 324.
  • Fitting 320 is illustrated as being formed as one piece from suitable synthetic resinous material and comprises a trailing or proximal collar 326, the exterior annular surface 328 of which is substantially the same diameter as the diameter of bore 330 forming a part of valve 322.
  • the collar 326 is secured in the position illustrated in Figure 2 by plastic welding, bonding, or any other suitable fashion.
  • Fitting 320 also comprises an annular distally-extending interior flange 334, which defines a hollow interior shown as having a uniform diameter extending to aperture 332, into which the trailing end 336 of catheter tube 120 is inserted and secured suitably in the installed position by an appropriate bonding agent, plastic welding, or in any other suitable fashion.
  • Fitting 320 comprises an exterior, distally-directed flange 338, which is radially spaced from flange 334.
  • the trailing end 342 of the collapsible sheath 304 is contiguously placed over the exterior surface of flange 338, over which a collar 344 is force-fit to retain the end 342 in the assembled position.
  • the control valve 322 comprises a manually actuated reciprocable plunger, generally designated 350, a base plate 354, a female housing member generally designated 356, and a single element elastomeric member, generally designated 358.
  • Plunger 350 comprises an oval-shaped exposed actuator 360, integrally connected to a rigid, vertically-oriented hollow tube 362, a flange end 364 which is seated in a correspondingly-shaped recess 366 within the hollow interior of the single element 358.
  • Female receptacle 356 comprises a cavity 368, defined by an upwardly-directed oval-shaped flange 370 in which the plunger 350 reciprocates down and up, respectively, when actuator 360 is actuated and released.
  • the female receptacle 356 comprises a distal passageway 372 and a proximal passageway 374, which communicate one with the other across the single element 358 when the actuator 360 is depressed, by reason of the tear-shaped configuration of the single element
  • Element 358 comprises a 360° reverse bend 376, an annular flange 377, and a pear-shaped lower region, the diameter of which varies so that in the up position, the single element 358 seals passageways 372 and 374 preventing delivery of suction to the interior of the catheter tube 120.
  • Flange 377 is anchored in the assembled position by a retainer 379 which is bonded in the position illustrated in Figure 2. In the down position, communication of negative pressure between passageways 372 and 374 occurs around a reduced diameter part of the teardrop portion of the element 358.
  • Element 358 also serves to inhibit introduction of atmospheric air into the valve because base plate 354 is sealed in position.
  • Stepped tube 324 comprises exterior annular shoulders upon which medical grade tube may be inserted and retained. Stepped tube 324 defines an interior bore in communication with bore 374 along which negative pressure is communicated selectively, as described above.
  • the cartridge 116 with the catheter tube 120 retracted, can be manually removed and discarded, following which a fresh cartridge of similar or dissimilar design or purpose can be inserted into the female receptacle 117 defined by wall 112 to assist in providing the appropriate therapy for the patient.
  • rotatable tubes 88 and 88 ' are provided. More specifically, bell housings 46 and 80 are typically stationary during use, whereas connector tubes 88 and 88 ' are readily rotated. Accordingly, when tube 88 is compression or otherwise connected to a tracheal tube, for example, the remainder of adapter 44 may rotate as needed to relieve stress, without risking imposition of torque on the tracheal tube.
  • tube 88 ' may rotate as needed to relieve stress, prevent twisting of the ventilating tubing, and insure a continuing full supply of ventilating gases to the intubated patient.
  • adapter 44 illustrated and described in connection with Figure 1
  • the swivel feature provided by tubes 88 and 88' may be utilized with any type of ventilating fitting, for example the swivel connection may comprise a tee- piece, an elbow, etc.

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  • Health & Medical Sciences (AREA)
  • Pulmonology (AREA)
  • Emergency Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Medical Preparation Storing Or Oral Administration Devices (AREA)

Abstract

Des orifices d'adaptateurs (46, 80, 70, 180) sont utilisés pour ventiler et oxygéner les poumons, et aspirer leurs sécrétions, et pour procéder à un examen visuel, un prélèvement, une détection, et introduire une solution de lavage, et/ou administrer un médicament, des gaz, et/ou un lavage. Un raccord pivotant distal (46, 80) forme plusieurs sites d'étanchéité.
PCT/US1995/002571 1994-05-18 1995-03-06 Adaptateurs, joints pour systeme d'aspiration/ventilation, et leurs procedes d'utilisation WO1995031249A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU19372/95A AU1937295A (en) 1994-05-18 1995-03-06 Aspiration/ventilation adaptors, seals, and methods of use

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US24533394A 1994-05-18 1994-05-18
US08/245,333 1994-05-18
US08/293,009 1994-08-19
US08/293,009 US5694922A (en) 1994-05-18 1994-08-19 Swivel tube connections with hermetic seals

Publications (1)

Publication Number Publication Date
WO1995031249A1 true WO1995031249A1 (fr) 1995-11-23

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ID=26937160

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1995/002571 WO1995031249A1 (fr) 1994-05-18 1995-03-06 Adaptateurs, joints pour systeme d'aspiration/ventilation, et leurs procedes d'utilisation

Country Status (2)

Country Link
AU (1) AU1937295A (fr)
WO (1) WO1995031249A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8215306B2 (en) 2008-12-12 2012-07-10 Kimberly-Clark Worldwide, Inc. Respiratory access port assembly with push button lock and method of use
US8256422B2 (en) 2009-05-15 2012-09-04 Kimberly-Clark Worldwide, Inc Respiratory access port assembly with passive lock and method of use
US9078987B2 (en) 2011-12-23 2015-07-14 Avent, Inc. Clutch brake assembly for a respiratory access port

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4827921A (en) * 1987-01-29 1989-05-09 Erich Rugheimer Connecting system for gas lines for respirator or anesthesia apparatus having pluggable connecting elements
US5062420A (en) * 1990-09-18 1991-11-05 Walter Levine Sealed swivel for respiratory apparatus

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4827921A (en) * 1987-01-29 1989-05-09 Erich Rugheimer Connecting system for gas lines for respirator or anesthesia apparatus having pluggable connecting elements
US5062420A (en) * 1990-09-18 1991-11-05 Walter Levine Sealed swivel for respiratory apparatus

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8215306B2 (en) 2008-12-12 2012-07-10 Kimberly-Clark Worldwide, Inc. Respiratory access port assembly with push button lock and method of use
US8845617B2 (en) 2008-12-12 2014-09-30 Kimberly-Clark Worldwide, Inc. Respiratory access port assembly with push button lock and method of use
US8256422B2 (en) 2009-05-15 2012-09-04 Kimberly-Clark Worldwide, Inc Respiratory access port assembly with passive lock and method of use
US9078987B2 (en) 2011-12-23 2015-07-14 Avent, Inc. Clutch brake assembly for a respiratory access port

Also Published As

Publication number Publication date
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