US5236446A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tubular endoprosthesis for anatomical conduits
Assignee: NOVATECH
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Filing: 1989-03-02
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Granted: 1993-08-17
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Expires: 2009-03-02
Abstract
Abstract Tubular endoprosthesis for anatomical conduits is provided with a tubular body having an external surface which includes a plurality of protuberances. Preferably, the protuberances are distributed on the totality of the external surface, and are composed of nipples having a round apex, spaced from each other and radially oriented with respect to the tubular body.
Inventors
- 👤 Jean-Francois Dumon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:00
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/04; A61B; A61B90/00; A61F2002/046
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
109 words
Tubular endoprosthesis for anatomical conduits, comprising: a biocompatible tubular body composed of a semi-rigid or rigid material having an external surface and two open ends forming a passage therethrough, said body adapted to contact an internal wall of the anatomical conduit; and means forming a plurality of discrete protuberances distributed on said external surface for maintaining said tubular body within said anatomical conduit against return or axial displacement without injuring the internal wall of the anatomical conduit; and said means forming a plurality of protuberances comprising ineffaceable nipples having rounded tops, with said nipples being spaced along the length and periphery of said external surface of said tubular body.
Claim 2
Dependent Claim
109 words
Tubular endoprosthesis for anatomical conduits, comprising: a biocompatible tubular body composed of a semi-rigid or rigid material having an external surface and two open ends forming a passage therethrough, said body adapted to contact an internal wall of the anatomical conduit; and means forming a plurality of discrete protuberances distributed on said external surface for maintaining said tubular body within said anatomical conduit against return or axial displacement without injuring the internal wall of the anatomical conduit; and said means forming a plurality of protuberances comprising ineffaceable nipples having rounded tops, with said nipples being spaced along the length and periphery of said external surface of said tubular body.
Claim 3
Dependent Claim
19 words
The tubular endoprosthesis according to claim 1, wherein said nipples are radially oriented with respect to said tubular body.
Claim 4
Dependent Claim
25 words
The tubular endoprosthesis according to claim 1, wherein said nipples having rounded tops are distributed over substantially the entire external surface of said tubular body.
Claim 5
Dependent Claim
27 words
The tubular endoprosthesis according to claim 1, wherein said nipples are arranged in lines which are spaced from each other along said length of the external surface.
Claim 6
Dependent Claim
18 words
The tubular endoprosthesis according to claim 4, wherein said lines are positioned along rulings of said tubular body.
Claim 7
Dependent Claim
17 words
The tubular endoprosthesis according to claim 5, wherein said nipples are alternately distributed along said tubular body.
Claim 8
Dependent Claim
20 words
The tubular endoprosthesis according to claim 1, wherein said semi-rigid or rigid material comprises a material having elastic deformation ability.
Claim 9
Dependent Claim
14 words
The tubular endoprosthesis according to claim 7, wherein said material is an elastomeric silicone.
Claim 10
Dependent Claim
35 words
The tubular endoprosthesis according to claim 1, wherein said tubular body includes a lateral opening adapted to maintain a passage between an anatomical conduit in which the tubular endoprosthesis is positioned and a branch thereof.
Claim 11
Dependent Claim
95 words
Tubular endoprosthesis for anatomical conduits, comprising: a biocompatible tubular body having an external surface, wherein said tubular body includes two open ends, and at least one of said two ends has an internal slanted wall; and means forming a plurality of protuberances distributed on said external surface for maintaining said tubular body in an anatomical conduit without injuring anatomical walls of the anatomical conduit; and said means forming a plurality of protuberances comprising nipples having rounded tops, with said nipples being spaced along the length and periphery of said external surface of said tubular body.
Claim 12
Dependent Claim
95 words
Tubular endoprosthesis for anatomical conduits, comprising: a biocompatible tubular body having an external surface, wherein said tubular body includes two open ends, and at least one of said two ends has an internal slanted wall; and means forming a plurality of protuberances distributed on said external surface for maintaining said tubular body in an anatomical conduit without injuring anatomical walls of the anatomical conduit; and said means forming a plurality of protuberances comprising nipples having rounded tops, with said nipples being spaced along the length and periphery of said external surface of said tubular body.
Claim 13
Dependent Claim
18 words
The tubular endoprosthesis according to claim 10, wherein each of said two ends has an internal slanted wall.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-08-16 | 1997-02-15 | 1997-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-08-16 | 2001-02-15 | 2001-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-08-16 | 2005-02-15 | 2005-08-17 | $7700.00 | Window Closed / Lapsed |