US20030225453A1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inflatable intraluminal graft
Assignee: Boston Scientific Corp
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Filing: 2002-11-05
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Granted: —
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Expires: 2022-11-05
Abstract
Abstract A collapsible stent graft for aortic aneurysms comprises a collapsible inner tubular member ( 26 ) and an outer layer ( 24 ) fused or adhered thereto such as to provide a spiral inflatable member ( 22 ) therebetween. The stent graft is inserted into an artery in the collapsed state and then expanded into position by introducing a liquid into the inflatable member and sealing the member. The graft is held in place by an expandable stent ( 40 ).
Inventors
- 👤 Clifford Murch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:46
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/04; A61F2/06; A61F2/07; A61F2/82; A61F2/848; A61F2/86; A61F2/89; A61F2/95; A61F2/954; A61F2/958; A61F2002/065; A61F2002/075; A61F2250/00; A61F2250/0003
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
47 words
1 . A collapsible stent graft, which comprises a collapsible tubular member for lining a blood vessel and an inflatable member extending around the tubular member and attached thereto, whereby inflation of the inflatable member expands the tubular member from a collapsed state to an expanded state.
Claim 2
Dependent Claim
47 words
1 . A collapsible stent graft, which comprises a collapsible tubular member for lining a blood vessel and an inflatable member extending around the tubular member and attached thereto, whereby inflation of the inflatable member expands the tubular member from a collapsed state to an expanded state.
Claim 3
Dependent Claim
32 words
2 . A stent graft according to claim 1 wherein an outer layer is provided around the tubular member and is fused or adhered thereto so as to provide said inflatable member.
Claim 4
Dependent Claim
19 words
3 . A stent graft according to claim 2 wherein the inner tubular member is formed of expanded polytetrafluoroethylene.
Claim 5
Dependent Claim
18 words
4 . A stent graft according to claim 2 wherein the outer layer is formed of expanded polytetrafluoroethylene.
Claim 6
Dependent Claim
27 words
5 . A stent graft according to claim 2 , 3 or 4 wherein the outer layer is thrombogenic so as to encourage clotting of surrounding blood.
Claim 7
Dependent Claim
27 words
6 . A stent graft according to any preceding claim wherein the inflatable member forms a spiral structure comprising a plurality of turns around the tubular member.
Claim 8
Dependent Claim
22 words
7 . A stent graft according to claim 6 wherein there is a spacing of 1 to 2 mm between adjacent turns.
Claim 9
Dependent Claim
31 words
8 . A stent graft according to any of claims 1 to 6 wherein the inflatable member is in the form of a zig-zag or square-wave pattern around the tubular member.
Claim 10
Dependent Claim
25 words
9 . A stent graft according to any preceding claim provided with perforations, not within a region of the inflatable member, to allow ingrowth thereinto.
Claim 11
Dependent Claim
22 words
10 . A stent graft according to any preceding claim wherein the tubular member has a wall thickness thinner than 0.1 mm.
Claim 12
Dependent Claim
21 words
11 . A stent graft according to any preceding claim wherein an end of the tubular member is of undulating shape.
Claim 13
Dependent Claim
22 words
12 . A stent graft according to any of claims 1 to 10 wherein an end of the tubular member is angled.
Claim 14
Dependent Claim
16 words
13 . A stent graft according to any preceding claim wherein the tubular member is bifurcated.
Claim 15
Dependent Claim
20 words
14 . A stent graft according to any preceding claim wherein the inflatable member contains a liquid for inflation thereof.
Claim 16
Dependent Claim
23 words
15 . A stent graft according to claim 14 wherein the liquid is a resin which solidifies after injection into the inflatable member.
Claim 17
Dependent Claim
21 words
16 . A stent graft according to claim 14 wherein the resin adheres to the inside walls of the inflatable member.
Claim 18
Dependent Claim
24 words
17 . A stent graft according to any preceding claim which further comprises a stent having hooks for fixing the stent graft in place.
References Cited (Backward Citations)
No citation records indexed.
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