EP0783874A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Vascular prosthesis
Assignee: Boston Scientific Corp
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Filing: 1995-02-06
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Granted: —
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Expires: 2015-02-06
Abstract
Abstract The invention provides a prosthesis comprising a first stent and a second stent and stent joining means for joining two endoluminal stents one to the other to define a continuous lumen through the two stents, said stent joining means comprising: a male engaging portion (42) on said first stent which can be compressed radially inwardly; and a female cooperating portion (15) on said second stent; wherein the male engaging portion (42) can be entered into the female cooperating portion (18) in a radially compressed state and thereafter caused or allowed to expand in the female cooperating portion; the arrangement being such that in service the inter-engagement of the male engaging portion and the female cooperating portion so as to resist relative longitudinal movement of the two stents one from the other.
Inventors
- 👤 George Goicoechea
- 👤 John Hudson
- 👤 Claude Mialhe
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 20:18
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/82; A61F2/852; A61F2/02; A61F2/04; A61F2/06; A61F2/07; A61F2/86; A61F2/90; A61F2/95; A61F2/954; A61F2/958; A61F2002/061; A61F2002/065; A61F2002/075; A61F2002/828; A61F2/848; A61F2002/8486; A61F2210/00; A61F2210/0014; A61F2210/0019; A61F2220/00; A61F2220/0008; A61F2220/0016; A61F2220/0025; A61F2220/0033; A61F2220/0066; A61F2220/0075; A61F2230/00; A61F2230/0063; A61F2230/0067; A61F2240/00; A61F2240/001; A61F2250/00; A61F2250/0058; A61F2250/0096; A61F2250/0098; A61M; A61M25/00; A61M25/01; A61M25/06; A61M25/0662; Y; Y10; Y10S; Y10S623/00; Y10S623/902; Y10S623/903; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
128 words
A prosthesis comprising a first stent and a second stent and stent joining means for joining two endoluminal stents one to the other to define a continuous lumen through the two stents, said stent joining means comprising: a male engaging portion (42;78) on said first stent which can be compressed radially inwardly; and a female cooperating portion (18;88) on said second stent; wherein the male engaging portion (42;78) can be entered into the female cooperating portion (18;88) in a radially compressed state and thereafter caused or allowed to expand in the female cooperating portion; the arrangement being such that in service the inter-engagement of the male engaging portion and the female cooperating portion so as to resist relative longitudinal movement of the two stents one from the other.
Claim 2
Dependent Claim
17 words
A prosthesis as claimed in claim 1 wherein said first stent includes a proximal male engaging portion.
Claim 3
Dependent Claim
20 words
A prosthesis as claimed in claim 1 or claim 2 wherein said second stent includes a distal female cooperating portion.
Claim 4
Dependent Claim
24 words
A prosthesis as claimed in claim 1, claim 2 or claim 3 wherein said male engaging portion is flared radially outwardly towards its extremity.
Claim 5
Dependent Claim
24 words
A prosthesis as claimed in any preceding claim wherein the male engaging portion comprises a frustoconical wall which flares outwardly towards its longitudinal extremity.
Claim 6
Dependent Claim
25 words
A prosthesis as claimed in any preceding claim wherein the female engaging portion comprises a frustoconical wall which tapers radially inwardly towards its longitudinal extremity.
Claim 7
Dependent Claim
25 words
A prosthesis as claimed in claim 1, claim 2 or claim 3 wherein said male engaging portion and said female cooperating portion are substantially untapered.
Claim 8
Dependent Claim
27 words
A prosthesis as claimed in claim 1, claim 2, claim 3 or claim 7 wherein said male engaging portion and said female cooperating portion are substantially cylindrical.
Claim 9
Dependent Claim
44 words
A prosthesis as claimed in any preceding claim wherein said male engaging portion is resiliently compressible in a radially inwards direction such that in a radially compressed state the male engaging portion is capable of self re-expansion to engage in the female cooperating portion.
Claim 10
Dependent Claim
19 words
A prosthesis as claimed in any preceding claim wherein each of said first and second stents is resiliently compressible.
Claim 11
Dependent Claim
22 words
A prosthesis as claimed in any preceding claim wherein said second stent (50) has two transversely spaced distal female cooperating portions (58,60).
Claim 12
Dependent Claim
43 words
A prosthesis as claimed in claim 11 wherein each of said two transversely distal female cooperating portions is adapted for connection to a first male stent which, in use, extends across a bifurcation in a blood vessel into a respective branched blood vessel.
Claim 13
Dependent Claim
43 words
A prosthesis as claimed in any preceding claim wherein the proximal end of said second stent is flared radially outwardly towards its extremity to engage the endoluminal surface of the blood vessel thereby to resist longitudinal movement of the second stent in service.
Claim 14
Dependent Claim
25 words
A prosthesis as claimed in any preceding claim wherein each of said first and second stents comprises a sinuous wire formed into a tubular configuration.
Claim 15
Dependent Claim
25 words
A prosthesis as claimed in any preceding claim wherein each of said first and second stents is formed from a shape memory nitinol (nickel/titanium) wire.
Claim 16
Dependent Claim
49 words
A prosthesis as claimed in claim 14 or 15 wherein said each of the wires forming said first and second stents defines a plurality of hoops (20) such that the plane of the circumference of each hoop is disposed substantially perpendicular to the longitudinal axis of the respective stent.
Claim 17
Dependent Claim
18 words
A prosthesis as claimed in claim 16 wherein each hoop comprises a substantially complete turn of the wire.
Claim 18
Dependent Claim
35 words
A prosthesis as claimed in claim 16 or 17 wherein the plane of the circumference of the hoop at each longitudinal end of the stent is square to the longitudinal axis of the respective stent.
Claim 19
Dependent Claim
45 words
A prosthesis as claimed in any of claims 16 - 18, further comprising securing means (99) for securing an apex (22) of the sinuous wire in one hoop to a juxtaposed apex of a neighbouring hoop so that each hoop is supported by its neighbours.
Claim 20
Dependent Claim
22 words
A prosthesis as claimed in claim 19 wherein said securing means comprises a loop element (99c) to tie the juxtaposed apices together.
Claim 21
Dependent Claim
84 words
A prosthesis as claimed in any preceding claim wherein said second stent (70;91) is adapted to extend across a bifurcation in a blood vessel such that in use the proximal end (72;92) of the second stent is disposed proximally of the bifurcation, and the distal end (80;94) is disposed in one of the branched blood vessels; said distal female cooperating portion (78;95) is disposed intermediate said proximal and distal ends, and said first stent is adapted to extend in the other branched blood vessel.
Claim 22
Dependent Claim
21 words
A prosthesis as claimed in any preceding claim wherein said first stent and said second consist of a shape memory alloy.
References Cited (Backward Citations)
No citation records indexed.
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