WO1995023563B1 - Endovascular hepatic prostheses - Google Patents
Endovascular hepatic prosthesesInfo
- Publication number
- WO1995023563B1 WO1995023563B1 PCT/CA1995/000124 CA9500124W WO9523563B1 WO 1995023563 B1 WO1995023563 B1 WO 1995023563B1 CA 9500124 W CA9500124 W CA 9500124W WO 9523563 B1 WO9523563 B1 WO 9523563B1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- tubular member
- flexible
- rigid
- prosthesis
- rigid tubular
- Prior art date
Links
- 230000002440 hepatic Effects 0.000 title 1
- 210000002989 Hepatic Veins Anatomy 0.000 abstract 1
- 210000004185 Liver Anatomy 0.000 abstract 1
- 210000003240 Portal Vein Anatomy 0.000 abstract 1
Abstract
An expandable prosthesis to be positioned in a parenchymal tract joining in the liver the hepatic and portal veins comprises a first substantially rigid tubular member and a second substantially flexible tubular member. The first and second tubular members each have a first collapsed diameter and at least a second expanded diameter and are adapted to at least partly overlap one another when installed in the body passageway. Basically, the rigid member provides rigidity to the prosthesis while assisting in maintaining in position the prosthesis in the passageway, whereas the flexible member assists the prosthesis in substantially following the orientation of the body passageway. In a shunting device, a catheter is provided for detachably carrying the prosthesis and for positioning the same in the body. An expandable balloon is used to expand the rigid tubular member, whereas the flexible tubular member which has intrinsic self-expanding forces expands when a sheath is removed. Therefore, the rigid and flexible tubular members are expanded to the respective expanded diameters thereof.
Claims
AMENDED CLAIMS
[received by the International Bureau on 21 August 1995 (21.08.95); original claims 1-7 amended; original claims 8-13 amended and renumbered as claims 10-15; new claims 8, 9 and 16-20 added (7 pages)]
1. An expandable prosthesis for a body passageway comprising a substantially flexible and substantially tubular member and a substantially rigid and substantially tubular member, said flexible and rigid tubular members each having a pair of opposite outer ends and each further having a first collapsed diameter and at least a second expanded diameter, said flexible tubular member being axially longer than said rigid tubular member, said flexible and rigid tubular members being adapted such that, when installed in the body passageway, said rigid tubular member is disposed opposite said flexible tubular member and completely inwardly of said outer ends of said flexible tiibular member, whereby said rigid tubular member provides rigidity to the prosthesis while assisting in maintaining in position said prosthesis in the passageway, whereas said flexible tubular member assists said prosthesis in substantially following the orientation of the body passageway.
2. A prosthesis as defined in Claim 1, wherein said flexible and rigid tubular members are distinct and each define an open weave, at least when expanded.
3. A prosthesis as defined in Claim 2, wherein said rigid tubular member is adapted to be expanded by outwardly directed radial forces while said flexible tubular member is provided with intrinsic self-expanding forces, and wherein said flexible tubular member comprises a central portion and a pair of end portions disposed axially on one side and another of said central portion, said central portion extending
32
opposite said rigid tubular member, whereby when said prosthesis is installed said end portions of said flexible tubular member extend outwardly past said outer ends of said rigid tubular member.
A prosthesis as defined in Claim 3, wherein said rigid tubular member is adapted to be disposed within said flexible tubular member.
A prosthesis as defined in Claim 3, wherein said flexible tubular member is adapted to be disposed within said rigid tubular member.
6. A prosthesis as defined in Claim 4, wherein the expanded diameter of said flexible tubular member is smaller than the expanded diameter of said rigid tubular member, whereby the deployment of said rigid tubular member to said expanded diameter thereof within said flexible tubular member causes at least said central portion to overextend thereby substantially securing said rigid and flexible tubular members one to the other when installed in the body passageway.
7. A prosthesis as defined in Claim 5, wherein said rigid tubular member is expanded to an expanded diameter thereof smaller than the expanded diameter of said flexible tubular member thereby restricting the expansion of said flexible tubular member at least at said central portion, whereby said end portions expand to a larger diameter than said central portion for substantially securing said rigid and flexible tubular members one to the other when installed in the body passageway.
33
8. An expandable prosthesis for a body passageway comprising a substantially flexible and substantially tubular member and a substantially rigid and substantially tubular member, said flexible and rigid tubular members each having a first collapsed diameter and at least a second expanded diameter, said flexible and rigid tubular members being adapted to be disposed in a longitudinally aligned and partly overlapping relationship when installed in the body passageway, wherein said flexible tubular member represents at least one of two longitudinal free ends of said prosthesis, whereby said rigid tubular member provides rigidity to the prosthesis while assisting in maintaining in position said prosthesis in the passageway, whereas said flexible tubular member assists said prosthesis in substantially following the orientation of the body passageway.
9. A prosthesis as defined in Claim 8, wherein said flexible and rigid tubular members are distinct and each define an open weave, at least when expanded.
10. A prosthesis as defined in Claim 9, wherein said rigid tubular member is adapted to be expanded by outwardly directed radial forces while said flexible tubular member is provided with intrinsic self-expanding forces, said flexible and rigid tubular members being adapted to be disposed, when installed in the body passageway, in an end-to-end and slightly overlapping relationship.
11. A prosthesis as defined in Claim 10, wherein said flexible tubular member comprises a pair of distinct and similar flexible sections with said rigid tubular member being adapted to be disposed between said flexible sections when said prosthesis is installed in the passageway , wherein said flexible sections and said rigid tubular member are disposed in an end-to-end and partly overlapping relationship with said flexible sections representing both said free ends of said prosthesis.
12. A prosthesis as defined in Claim 11, wherein said rigid tubular member is adapted to be disposed partly within said flexible tubular member, and wherein the expanded diameter of said flexible sections of said flexible tubular member is smaller than the expanded diameter of said rigid tubular member, whereby the deployment of said rigid tubular member to said expanded diameter thereof while ends of said rigid tubular member are positioned within said flexible sections causes ends of said flexible sections overlapping said rigid tubular member ends to overextend thereby substantially securing said rigid and flexible tubular members one to the other when installed in the body passageway.
13. A shunting device for a body comprising an expandable prosthesis and catheter means for positioning said prosthesis in the body, said prosthesis comprising first and second substantially tubular members, one of said first and second tubular members being substantially rigid with another one of said first and second tubular members being substantially flexible,
35
said first and second tubular members each having a first collapsed diameter and at least a second expanded diameter, said catheter means being adapted to detachably carry said prosthesis and to position said prosthesis in the body, expansion means for causing said first and second tubular members to extend to the respective expanded diameters thereof, said flexible tubular member being longer than said rigid tubular member, said rigid tubular member being adapted to at least partly overlap one another when installed in the body passageway, wherein said flexible tubular member represents at least one of two . ongitudinal ends of said prosthesis when installed in the body passageway, whereby said rigid member provides rigidity to the prosthesis while assisting in maintaining in position said prosthesis in the passageway, whereas said flexible member assists said prosthesis in substantially following the orientation of the body passageway.
14. A device as defined in Claim 13, wherein said flexible and rigid tubular members are distinct and each define an open weave, at least when expanded, and wherein said rigid tubular member is adapted to be expanded by outwardly directed radial forces while said flexible member is provided with intrinsic self-expanding forces.
15. A device as defined in Claim 14, wherein said flexible tubular member is longer than said rigid tubular member, said rigid tubular member being adapted to be disposed completely inwardly of opposite longitudinal ends of said flexible tubular member, whereby when said prosthesis is
36
installed end portions of said flexible tubular member extend outwardly past both longitudinal ends of said rigid member.
16. A device as defined in Claim 15, wherein said rigid tubular member is adapted to be disposed within said flexible tubular member, and wherein the expanded diameter of said flexible tubular member is smaller than the expanded diameter of said rigid tubular member, whereby the deployment of said rigid tubular member to said expanded diameter thereof within said flexible tubular member causes at least a central portion of said flexible tubular member located between said end portions to overextend thereby substantially securing said rigid and flexible tubular members one to the other when installed in the body passageway.
17. A device as defined in Claim 15, wherein said flexible tubular member is adapted to be disposed within said rigid tubular member, and wherein said rigid tubular member is expanded to an expanded diameter thereof smaller than the expanded diameter of said flexible tubular member thereby restricting the expansion of said flexible tubular member at least at a central portion of said flexible tubular member located between said end portions thereof, whereby said end portions of said flexible tubular member expand to a larger diameter than said central portion for substantially securing said rigid and flexible tubular members one to the other when installed in the body passageway.
18. A device as defined in Claim 14, wherein said flexible and rigid tubular members are
37
adapted to be disposed, when installed in the body passageway, in an end-to-end and slightly overlapping relationship.
19. A device as defined in Claim 18, wherein said flexible tubular member comprises a pair of distinct and similar flexible sections with said rigid tubular member being adapted to be disposed between said flexible sections when said prosthesis is installed in the passageway such that said flexible sections represent both said free ends of said prosthesis.
20. A device as defined in Claim 19, wherein said rigid tubular member is adapted to be disposed partly within said flexible tubular member, and wherein the expanded diameter of said flexible sections is smaller than the expanded diameter of said rigid tubular member, whereby the deployment of said rigid tubular member to said expanded diameter thereof while ends of said rigid member are positioned within said flexible sections causes ends of said flexible sections overlapping said rigid tubular member ends to overextend thereby substantially securing said rigid and flexible tubular members one to the other when installed in the body passageway.
3 8
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU17521/95A AU1752195A (en) | 1994-03-04 | 1995-03-03 | Endovascular hepatic prostheses |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US20651194A | 1994-03-04 | 1994-03-04 | |
| US08/206,511 | 1994-03-04 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO1995023563A1 WO1995023563A1 (en) | 1995-09-08 |
| WO1995023563B1 true WO1995023563B1 (en) | 1995-09-21 |
Family
ID=22766723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CA1995/000124 WO1995023563A1 (en) | 1994-03-04 | 1995-03-03 | Endovascular hepatic prostheses |
Country Status (2)
| Country | Link |
|---|---|
| AU (1) | AU1752195A (en) |
| WO (1) | WO1995023563A1 (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6576009B2 (en) | 1995-12-01 | 2003-06-10 | Medtronic Ave, Inc. | Bifurcated intraluminal prostheses construction and methods |
| US5824040A (en) * | 1995-12-01 | 1998-10-20 | Medtronic, Inc. | Endoluminal prostheses and therapies for highly variable body lumens |
| WO1997033532A2 (en) * | 1996-03-13 | 1997-09-18 | Medtronic, Inc. | Endoluminal prostheses and therapies for multiple-branch body lumen systems |
| NZ331269A (en) * | 1996-04-10 | 2000-01-28 | Advanced Cardiovascular System | Expandable stent, its structural strength varying along its length |
| US6544278B1 (en) | 1998-11-06 | 2003-04-08 | Scimed Life Systems, Inc. | Rolling membrane stent delivery system |
| US6273910B1 (en) | 1999-03-11 | 2001-08-14 | Advanced Cardiovascular Systems, Inc. | Stent with varying strut geometry |
| US6273911B1 (en) | 1999-04-22 | 2001-08-14 | Advanced Cardiovascular Systems, Inc. | Variable strength stent |
| US6605110B2 (en) | 2001-06-29 | 2003-08-12 | Advanced Cardiovascular Systems, Inc. | Stent with enhanced bendability and flexibility |
| US7763198B2 (en) | 2005-04-12 | 2010-07-27 | Abbott Cardiovascular Systems Inc. | Method for retaining a vascular stent on a catheter |
| US7947207B2 (en) | 2005-04-12 | 2011-05-24 | Abbott Cardiovascular Systems Inc. | Method for retaining a vascular stent on a catheter |
| US8628565B2 (en) | 2005-04-13 | 2014-01-14 | Abbott Cardiovascular Systems Inc. | Intravascular stent |
| US9931232B2 (en) | 2010-10-21 | 2018-04-03 | Boston Scientific Scimed, Inc. | Stent delivery system |
| EP3494934B1 (en) | 2013-01-23 | 2022-12-21 | Cook Medical Technologies LLC | Stent with positioning arms |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE445884B (en) * | 1982-04-30 | 1986-07-28 | Medinvent Sa | DEVICE FOR IMPLANTATION OF A RODFORM PROTECTION |
| CA2026604A1 (en) * | 1989-10-02 | 1991-04-03 | Rodney G. Wolff | Articulated stent |
| EP0435518B1 (en) * | 1989-12-29 | 1995-02-15 | Med Institute, Inc. | A flexible, kink-resistant catheter |
| US5064435A (en) * | 1990-06-28 | 1991-11-12 | Schneider (Usa) Inc. | Self-expanding prosthesis having stable axial length |
| FR2683449A1 (en) * | 1991-11-08 | 1993-05-14 | Cardon Alain | ENDOPROTHESIS FOR TRANSLUMINAL IMPLANTATION. |
-
1995
- 1995-03-03 AU AU17521/95A patent/AU1752195A/en not_active Abandoned
- 1995-03-03 WO PCT/CA1995/000124 patent/WO1995023563A1/en active Application Filing
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