WO1998005368A2 - Clapet - Google Patents

Clapet Download PDF

Info

Publication number
WO1998005368A2
WO1998005368A2 PCT/US1997/013283 US9713283W WO9805368A2 WO 1998005368 A2 WO1998005368 A2 WO 1998005368A2 US 9713283 W US9713283 W US 9713283W WO 9805368 A2 WO9805368 A2 WO 9805368A2
Authority
WO
WIPO (PCT)
Prior art keywords
cannula
seal
outlet
valve
housing
Prior art date
Application number
PCT/US1997/013283
Other languages
English (en)
Other versions
WO1998005368A3 (fr
Inventor
John Douglas Rohrbough
Michael D. Olichney
Original Assignee
Faulding Inc.
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
Application filed by Faulding Inc. filed Critical Faulding Inc.
Priority to AU40473/97A priority Critical patent/AU4047397A/en
Priority to US09/230,669 priority patent/US6189859B1/en
Publication of WO1998005368A2 publication Critical patent/WO1998005368A2/fr
Publication of WO1998005368A3 publication Critical patent/WO1998005368A3/fr

Links

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
    • A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/02—Access sites
    • A61M39/04—Access sites having pierceable self-sealing members

Definitions

  • annular projection 21 projects upwardly proud of the remainder of the seat 19.
  • This projection 21 has a triangular cross-section terminating in a sharp pointed knife edge which engages a seal on the cannula (described below).
  • the knife edge has the effect of concentrating the pressure of the seal and produces a particular efficacious seal.
  • the knife edge 21 is shown particularly clearly in Fig 4.
  • the sleeve 50 mounted over the second cannula portion 32 biasing the cannula 25 to the closed position.
  • the sleeve 50 has two open ends 51 and 52 and is made of elastomeric material.
  • the open end 51 of the sleeve 50 is typically secured to the flange 34 of the cannula portion 32.
  • the end 51 of the sleeve 50 is received within an annular channel defined in the flange 34, and secured to the channel, eg by adhesive.
  • the sleeve 50 extends towards the outlet end of the cannula 25 with the end 52 of the sleeve 50 being positioned adjacent to the seal 40.
  • the sleeve 50 is arranged such that it is loaded under compression even when the cannula 25 is in the closed position. The compression loading when the cannula 25 is in the closed portion is important because it urges the seal 40 into engagement with the seat 19

Landscapes

  • Health & Medical Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Pulmonology (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

Cette invention concerne un clapet (1) pouvant être utilisé sur un cathéter à demeure. D'une manière générale, ce clapet (1) comprend un corps (2) à l'intérieur duquel se trouve un insert de clapet allongé (3). Le corps (2), qui possède une entrée (4) à une extrémité ainsi qu'une sortie (5) à l'autre extrémité, définit un passage longitudinal (7) qui relie ladite entrée (4) et ladite sortie (5). L'insert (3) de clapet comprend une canule (25) qui possède une entrée (26) dans la direction d'une de ses extrémités (27), ainsi qu'une sortie (28) dans la direction de l'autre extrémité (29). L'extrémité (27) d'entrée de la canule (25) se termine en une pointe effilée, tandis que l'extrémité de sortie (29) est arrondie et que la sortie (28) proprement dite est décalée axialement et vers l'intérieur par rapport à l'extrémité (29). L'insert (3) comprend en outre un joint (40) qui se compose d'un corps annulaire (41) fait d'un matériau élastique. Le corps comporte une ouverture (42) à travers laquelle dépasse l'extrémité de sortie (29) de la canule (25). Ce joint (40) possède une surface d'extrémité axiale qui va entrer en contact hermétique avec un siège (19) formé par le boîtier (2). La canule (25) peut se déplacer dans le boîtier (2) et passer d'une position fermée, où la sortie (28) est en amont du joint (40), en une position ouverte où cette même sortie (28) est en aval du joint (40). L'insert (3) de clapet comprend en outre un système de poussée se présentant sous forme d'un manchon élastique (50) qui est comprimé et va pousser la canule (25) en position fermée. La charge de compression dans le manchon (50) va également pousser le joint (40) en contact avec le siège (19). Dans la plupart des cas, l'insert (3) comprend également un autre manchon (60) qui recouvre et entoure l'entrée de la canule (25). Lors de l'utilisation, le manchon (60) est percé par la pointe effilée située sur l'extrémité (27) de la canule (25).
PCT/US1997/013283 1996-08-01 1997-07-30 Clapet WO1998005368A2 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU40473/97A AU4047397A (en) 1996-08-01 1997-07-30 Valve
US09/230,669 US6189859B1 (en) 1996-08-01 1997-07-30 Indwelling catheter valve

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPO1354 1996-08-01
AUPO1354A AUPO135496A0 (en) 1996-08-01 1996-08-01 Valve

Publications (2)

Publication Number Publication Date
WO1998005368A2 true WO1998005368A2 (fr) 1998-02-12
WO1998005368A3 WO1998005368A3 (fr) 1998-03-26

Family

ID=3795669

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1997/013283 WO1998005368A2 (fr) 1996-08-01 1997-07-30 Clapet

Country Status (2)

Country Link
AU (1) AUPO135496A0 (fr)
WO (1) WO1998005368A2 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101789527B1 (ko) 2011-03-01 2017-10-25 바이엘 인텔렉쳐 프로퍼티 게엠베하 2-아실옥시피롤린-4-온

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4610469A (en) * 1983-02-02 1986-09-09 Steritech B.V. Connector assembly for sterile connection or two internally sterile containers of tubings
US4895565A (en) * 1987-09-21 1990-01-23 Cordis Corporation Medical instrument valve
US5163922A (en) * 1991-04-29 1992-11-17 Charles E. McElveen, Jr. Dual-valved connector for intravenous systems
US5549577A (en) * 1993-12-29 1996-08-27 Ivac Corporation Needleless connector
US5699821A (en) * 1993-10-13 1997-12-23 Paradis; Joseph R. Control of fluid flow

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4610469A (en) * 1983-02-02 1986-09-09 Steritech B.V. Connector assembly for sterile connection or two internally sterile containers of tubings
US4895565A (en) * 1987-09-21 1990-01-23 Cordis Corporation Medical instrument valve
US5163922A (en) * 1991-04-29 1992-11-17 Charles E. McElveen, Jr. Dual-valved connector for intravenous systems
US5699821A (en) * 1993-10-13 1997-12-23 Paradis; Joseph R. Control of fluid flow
US5549577A (en) * 1993-12-29 1996-08-27 Ivac Corporation Needleless connector

Also Published As

Publication number Publication date
AUPO135496A0 (en) 1996-08-22
WO1998005368A3 (fr) 1998-03-26

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