US5755769A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Expansible endoprosthesis for a human or animal tubular organ, and fitting tool for use thereof
Assignee: LPH SA
•
Filing: 1993-03-11
•
Granted: 1998-05-26
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Expires: 2013-03-11
Abstract
Abstract An endoprosthesis includes an extensible tubular mesh embedded in a plastic or elastomer extensible film. A tool for positioning the endoprosthesis includes a tube-shaped guide provided at its distal end with a tulip-shaped housing. Cutting threads cause the housing to open longitudinally into several petal-like parts. Application is to endoluminal treatment of aneurisms and dilations.
Inventors
- 👤 Thierry Richard
- 👤 Eric Perouse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:02
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/82; A61F2/86; A61F2/90; A61F2/95; A61F2/962; A61F2/97; A61F2/02; A61F2/30; A61F2002/30001; A61F2002/30003; A61F2002/3006; A61F2002/3008; A61F2002/30108; A61F2002/30199; A61F2002/30316; A61F2002/30317; A61F2002/30327; A61F2230/00; A61F2230/0063; A61F2230/0073; A61F2230/0078; A61F2250/00; A61F2250/0014; A61F2250/0039; A61F2250/0058; A61F2250/0096; A61F2250/0098
Claims Analysis
Total Claims: 32
Claim 1
Independent Claim
177 words
A self-expanding stent comprising: a generally tubular self-expanding mesh formed of a material having spring properties, said mesh having an axis, opposite ends and a body portion extending axially between said ends, said mesh defining therethrough a plurality of openings, and said material of said mesh having an exposed surface including portions facing radially outwardly and radially inwardly with respect to said axis and portions facing toward each of said openings, said mesh being deformably expansible from a contracted state to an expanded state; a liquid-tight film formed of an extensible and biocompatible material; at least said body portion of said mesh being entirely embedded within said film, such that said film fills and bridges said openings of said body portion of said mesh, and with said film covering and being attached to the entire said exposed surface of said body portion of said mesh; and said material of said film having an extensibility sufficient to enable said film to follow and move with said mesh during deformation thereof from said contracted state to said expanded state.
Claim 2
Dependent Claim
177 words
A self-expanding stent comprising: a generally tubular self-expanding mesh formed of a material having spring properties, said mesh having an axis, opposite ends and a body portion extending axially between said ends, said mesh defining therethrough a plurality of openings, and said material of said mesh having an exposed surface including portions facing radially outwardly and radially inwardly with respect to said axis and portions facing toward each of said openings, said mesh being deformably expansible from a contracted state to an expanded state; a liquid-tight film formed of an extensible and biocompatible material; at least said body portion of said mesh being entirely embedded within said film, such that said film fills and bridges said openings of said body portion of said mesh, and with said film covering and being attached to the entire said exposed surface of said body portion of said mesh; and said material of said film having an extensibility sufficient to enable said film to follow and move with said mesh during deformation thereof from said contracted state to said expanded state.
Claim 3
Dependent Claim
14 words
A stent as claimed in claim 1, wherein said film material is a polymer.
Claim 4
Dependent Claim
13 words
A stent as claimed in claim 1, wherein said film material is polyurethane.
Claim 5
Dependent Claim
14 words
A stent as claimed in claim 1, wherein said film material is natural rubber.
Claim 6
Dependent Claim
14 words
A stent as claimed in claim 1, wherein said film material is synthetic rubber.
Claim 7
Dependent Claim
24 words
A stent as claimed in claim 1, wherein end portions of said stent are flared when said stent is in an expanded condition thereof.
Claim 8
Dependent Claim
14 words
A stent as claimed in claim 1, wherein said mesh material comprises stainless steel.
Claim 9
Dependent Claim
15 words
A stent as claimed in claim 1, wherein said mesh material comprises a rigid plastic.
Claim 10
Dependent Claim
15 words
A stent as claimed in claim 8, wherein said rigid plastic mesh material comprises polytetrafluoroethylene.
Claim 11
Dependent Claim
15 words
A stent as claimed in claim 8, wherein said rigid plastic mesh material is radiopaque.
Claim 12
Dependent Claim
14 words
A stent as claimed in claim 1, wherein said film is a plastic material.
Claim 13
Dependent Claim
14 words
A stent as claimed in claim 1, wherein said film is an elastomer material.
Claim 14
Dependent Claim
46 words
A stent as claimed in claim 1, wherein said openings of said mesh are diamond-shaped and are elongated parallel to said axis of said mesh in said contracted state of said mesh and are elongated circumferentially of said mesh in said expanded state of said mesh.
Claim 15
Dependent Claim
33 words
A stent as claimed in claim 1, wherein said extensibility of said material of said film is sufficient to prevent said film from tearing away or detaching from said mesh during said deformation.
Claim 16
Dependent Claim
15 words
A stent as claimed in claim 1, wherein said film comprises a unitary one-piece structure.
Claim 17
Dependent Claim
164 words
An expansible stent comprising: a generally tubular mesh having an axis, opposite ends and a body portion extending axially between said ends, said mesh defining therethrough a plurality of openings, and said mesh having an exposed surface including portions facing radially outwardly and radially inwardly with respect to said axis and portions facing toward each of said openings, said mesh being deformably expansible from a contracted state to an expanded state; a liquid-tight film formed of an extensible and biocompatible material; at least said body portion of said mesh being entirely embedded within said film, such that said film fills and bridges said openings of said body portion of said mesh, and with said film covering and being attached to the entire said exposed surface of said body portion of said mesh; and said material of said film having an extensibility sufficient to enable said film to follow and move with said mesh during deformation thereof from said contracted state to said expanded state.
Claim 18
Dependent Claim
164 words
An expansible stent comprising: a generally tubular mesh having an axis, opposite ends and a body portion extending axially between said ends, said mesh defining therethrough a plurality of openings, and said mesh having an exposed surface including portions facing radially outwardly and radially inwardly with respect to said axis and portions facing toward each of said openings, said mesh being deformably expansible from a contracted state to an expanded state; a liquid-tight film formed of an extensible and biocompatible material; at least said body portion of said mesh being entirely embedded within said film, such that said film fills and bridges said openings of said body portion of said mesh, and with said film covering and being attached to the entire said exposed surface of said body portion of said mesh; and said material of said film having an extensibility sufficient to enable said film to follow and move with said mesh during deformation thereof from said contracted state to said expanded state.
Claim 19
Dependent Claim
14 words
A stent as claimed in claim 16, wherein said film material is a polymer.
Claim 20
Dependent Claim
13 words
A stent as claimed in claim 16, wherein said film material is polyurethane.
Claim 21
Dependent Claim
14 words
A stent as claimed in claim 16, wherein said film material is natural rubber.
Claim 22
Dependent Claim
14 words
A stent as claimed in claim 16, wherein said film material is synthetic rubber.
Claim 23
Dependent Claim
24 words
A stent as claimed in claim 16, wherein end portions of said stent are flared when said stent is in an expanded condition thereof.
Claim 24
Dependent Claim
15 words
A stent as claimed in claim 16, wherein said mesh is formed of stainless steel.
Claim 25
Dependent Claim
16 words
A stent as claimed in claim 16, wherein said mesh is formed of a rigid plastic.
Claim 26
Dependent Claim
13 words
A stent as claimed in claim 23, wherein said rigid plastic comprises polytetrafluoroethylene.
Claim 27
Dependent Claim
13 words
A stent as claimed in claim 23, wherein said rigid plastic is radiopaque.
Claim 28
Dependent Claim
14 words
A stent as claimed in claim 16, wherein said film is a plastic material.
Claim 29
Dependent Claim
14 words
A stent as claimed in claim 16, wherein said film is an elastomer material.
Claim 30
Dependent Claim
46 words
A stent as claimed in claim 16, wherein said openings of said mesh are diamond-shaped and are elongated parallel to said axis of said mesh in said contracted state of said mesh and are elongated circumferentially of said mesh in said expanded state of said mesh.
Claim 31
Dependent Claim
33 words
A stent as claimed in claim 16, wherein said extensibility of said material of said film is sufficient to prevent said film from tearing away or detaching from said mesh during said deformation.
Claim 32
Dependent Claim
15 words
A stent as claimed in claim 16, wherein said film comprises a unitary one-piece structure.
References Cited (Backward Citations)
US4731073A
Cited
US4447222A
Cited
US4878906A
Cited
GB2189150A
Cited
US5061275A
Cited
US5047050A
Cited
EP0335341A1
Cited
EP0364420B1
Cited
EP0364787B1
Cited
US4990155A
Cited
US5116318A
Cited
DE3918736A1
Cited
US4955859A
Cited
EP0408245A1
Cited
EP0423916A1
Cited
DE9001160U1
Cited
US5123917A
Cited
US5064435A
Cited
US5211658A
Cited
EP0556850A1
Cited
US5356425A
Cited
EP0621015A1
Cited
WO1994024961A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2001-05-25 | 2001-11-24 | 2002-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-05-25 | 2005-11-24 | 2006-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-05-25 | 2009-11-24 | 2010-05-26 | $7700.00 | Window Closed / Lapsed |