CA2213101A1 - Hemodialysis access device - Google Patents

Hemodialysis access device

Info

Publication number
CA2213101A1
CA2213101A1 CA002213101A CA2213101A CA2213101A1 CA 2213101 A1 CA2213101 A1 CA 2213101A1 CA 002213101 A CA002213101 A CA 002213101A CA 2213101 A CA2213101 A CA 2213101A CA 2213101 A1 CA2213101 A1 CA 2213101A1
Authority
CA
Canada
Prior art keywords
pair
shells
outlet tubes
device defined
septa
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.)
Granted
Application number
CA002213101A
Other languages
French (fr)
Other versions
CA2213101C (en
Inventor
Gerald S. Melsky
Frank R. Prosl
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Arrow International LLC
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2213101A1 publication Critical patent/CA2213101A1/en
Application granted granted Critical
Publication of CA2213101C publication Critical patent/CA2213101C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • A61M39/0208—Subcutaneous access sites for injecting or removing fluids
    • 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
    • A61M2039/0036—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use characterised by a septum having particular features, e.g. having venting channels or being made from antimicrobial or self-lubricating elastomer
    • A61M2039/0054—Multiple layers
    • 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
    • A61M2039/0036—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use characterised by a septum having particular features, e.g. having venting channels or being made from antimicrobial or self-lubricating elastomer
    • A61M2039/0072—Means for increasing tightness of the septum, e.g. compression rings, special materials, special constructions
    • 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
    • A61M39/0208—Subcutaneous access sites for injecting or removing fluids
    • A61M2039/0211—Subcutaneous access sites for injecting or removing fluids with multiple chambers in a single site

Abstract

A vascular access device for hemodialysis comprises a pair of similar, generally conical, hollow shells, each shell having a relatively large entrance end and a relatively small exit end and an axis extending between the ends, the shells being connected together along a line of tangency. A pair of self-sealing septa close the entrance ends of the shells, and a pair of integral outlet tubes extend from the exit ends of the pair of shells, the distal ends of the outlet tubes being spaced apart and disposed parallel to the line of tangency.

Claims (16)

1. A vascular access device for hemodialysis comprising a pair of similar, generally conical, hollow shells, each shell having a relatively large entrance end and a relatively small exit end and an axis extending between said ends;
means for connecting the pair of shells together along a line of tangency;
a pair of self-sealing septa closing the entrance ends of said pair of shells, and a pair of outlet tubes having corresponding first ends extending from the exit ends of said pair of shells, the opposite ends of said pair of outlet tubes being spaced apart and disposed parallel to said line of tangency.
2. The device defined in claim 1 wherein said pair of septa are domed and protrude from their respective shell entrance ends.
3. The device defined in claim 1 and further including a pair of external suture rings mounted to said pair of shells.
4. The device defined in claim 1 wherein said pair of shells are of titanium, and said pair of septa are of silicone rubber.
5. The device defined in claim 1 and further including a flexible, dual-lumen catheter having one end attached to said opposite ends of said pair of outlet tubes so that the outlet tubes communicate with different lumens of the catheter.
6. The device defined in claim 1 and further including thromboresistant covers covering the internal surfaces of said pair of shells and said pair of outlet tubes.
7. The device defined in claim 6 wherein said covers are of carbon.
8. The device defined in claim 6 wherein the thromboresistant covers covering the internal surfaces of said pair of shells comprise conical self-supporting liners which conform to the internal shapes of said shells and fit snugly between the septa and outlet tubes of the respective shells.
9. The device defined in claim 8 wherein said liners are of pyrolitic carbon.
10. The device defined in claim 1 and further including a needle for accessing said device by piercing at least one of said pair of septa, said needle including a cannula having a relatively large lumen;
a connector affixed to one end of the cannula;
a stylet sized to be received in and extend the entire length of said lumen, and a stylet hub affixed to one end of the stylet, said hub and said connector including coacting coupling means for releasably securing said hub and said connector together when the stylet is received in the cannula lumen.
11. The device defined in claim 10 wherein the cannula is a 12 to 16 gage cannula.
12. The port defined in claim 1 wherein said pair of septa are each composed of a first layer of relatively high derometer resilient material and a second parallel layer of relatively low derometer resilient material.
13. The port defined in claim 11 wherein said layer of low derometer material is located inside the corresponding shell.
14. A vascular access device for hemodialysis comprising a pair of similar generally conical hollow shells each having a relatively large entrance end and a relatively small exit end;
means for connecting the pair of shells toghether;
a pair of self-sealing septa closing the entrance ends of said pair of shells;
a pair of outlet tubes having corresponding first ends extending from the exit ends of said pair of shells, and thromboresistant covers covering the internal surface of said pair of shells and said pair of outlet tubes.
15. The device defined in claim 14 wherein the thromboresistant covers covering the internal surfaces of said pair of shells comprise conical self-supporting liners which conform to the internal shapes of said shells and fit snugly between the septa and outlet tubes of the respective shells.
16. A vascular access device comprising a hollow shell having a relatively large entrance and a relatively small exit and an axis extending between said entrance and said exit;
a self-sealing septum closing the shell entrance siad septum being composed of at least two layers of different durometer rubber-like materials, and an outlet tube having a first end extending from and communicating with said shell exit.
CA2213101A 1995-02-14 1996-02-08 Hemodialysis access device Expired - Lifetime CA2213101C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/388,530 1995-02-14
US08/388,530 US5704915A (en) 1995-02-14 1995-02-14 Hemodialysis access device
PCT/US1996/001730 WO1996025197A1 (en) 1995-02-14 1996-02-08 Hemodialysis access device

Publications (2)

Publication Number Publication Date
CA2213101A1 true CA2213101A1 (en) 1996-08-22
CA2213101C CA2213101C (en) 2010-07-20

Family

ID=23534490

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2213101A Expired - Lifetime CA2213101C (en) 1995-02-14 1996-02-08 Hemodialysis access device

Country Status (8)

Country Link
US (1) US5704915A (en)
EP (1) EP0810893B1 (en)
JP (1) JPH11500031A (en)
AT (1) ATE221401T1 (en)
AU (1) AU4865996A (en)
CA (1) CA2213101C (en)
DE (1) DE69622697D1 (en)
WO (1) WO1996025197A1 (en)

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CA2213101C (en) 2010-07-20
DE69622697D1 (en) 2002-09-05
WO1996025197A1 (en) 1996-08-22
ATE221401T1 (en) 2002-08-15
US5704915A (en) 1998-01-06
EP0810893B1 (en) 2002-07-31
AU4865996A (en) 1996-09-04
JPH11500031A (en) 1999-01-06
EP0810893A1 (en) 1997-12-10

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