US20060015171A1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Deployment system for intraluminal devices
Assignee: W.L. Gore and Associates Inc
•
Filing: 2004-07-16
•
Granted: —
•
Expires: 2024-07-16
Abstract
Abstract A constraining sheath for use around an endoprosthesis (e.g., a stent device, with or without a graft covering), which may be a balloon expandable endoprosthesis but more preferably is a self-expanding prosthesis. The endoprosthesis is coaxially enclosed within and substantially covered by the constraining sheath, which is an outer, removable tubular sheath, preferably made of ePTFE. The sheath is preferably corrugated circumferentially along at least a portion of the length of the endoprosthesis. The constraining sheath and endoprosthesis are preferably mounted together as an assembly at the distal end of a delivery means such as a catheter shaft, for delivery of the endoprosthesis to a desired location within a body conduit such as an artery. The constraining sheath is removed by the application of tension to a tensile member such as a tether to cause sequential pulling out of the corrugations followed by release and deployment of the endoprosthesis. The use of a corrugated constraining sheath in comparison to a non-corrugated sheath results in a more smoothly applied tensile force to effect the endoprosthesis release as well as requiring less maximum force.
Inventors
- 👤 Joseph Armstrong
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:45
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/12; A61B17/12022; A61B17/12099; A61B17/12109; A61B17/12131; A61B17/12168; A61B17/12172; A61F; A61F2/00; A61F2/95; A61F2/962; A61F2/97; A61B17/00234; A61B2017/00292; A61B2017/00336; A61B2017/1205; A61B2017/12054; A61B2017/12081; A61B90/00; A61B90/03; A61B2090/037; A61F2/958; A61F2002/9505; A61F2002/9511; A61F2250/00; A61F2250/0058; A61F2250/0071
Claims Analysis
Total Claims: 48
Claim 1
Independent Claim
57 words
1 . A delivery system for an endoprosthesis comprising an endoprosthesis having a length, a first, small diameter for insertion into a body conduit and a second, larger deployed diameter, said endoprosthesis being covered at the first smaller diameter by a removable sheath that is corrugated along at least a portion of the length of the endoprosthesis.
Claim 2
Dependent Claim
57 words
1 . A delivery system for an endoprosthesis comprising an endoprosthesis having a length, a first, small diameter for insertion into a body conduit and a second, larger deployed diameter, said endoprosthesis being covered at the first smaller diameter by a removable sheath that is corrugated along at least a portion of the length of the endoprosthesis.
Claim 3
Dependent Claim
14 words
2 . A delivery system according to claim 1 wherein said sheath comprises polytetrafluoroethylene
Claim 4
Dependent Claim
16 words
3 . A delivery system according to claim 2 wherein said polytetrafluoroethylene has a fibrillated microstructure.
Claim 5
Dependent Claim
15 words
4 . A delivery system according to claim 1 wherein said endoprosthesis is a stent.
Claim 6
Dependent Claim
16 words
5 . A delivery system according to claim 4 wherein said stent is a self-expanding stent.
Claim 7
Dependent Claim
15 words
6 . A delivery system according to claim 1 wherein said endoprosthesis is a stent-graft.
Claim 8
Dependent Claim
14 words
7 . A delivery system according to claim 6 wherein said stent-graft is self-expanding.
Claim 9
Dependent Claim
15 words
8 . A delivery system according to claim 1 wherein said endoprosthesis is a filter.
Claim 10
Dependent Claim
17 words
9 . A delivery system according to claim 8 wherein said filter is a vena cava filter.
Claim 11
Dependent Claim
15 words
10 . A delivery system according to claim 1 wherein said endoprosthesis is an occluder.
Claim 12
Dependent Claim
28 words
11 . A delivery system according to claim 1 wherein said endoprosthesis is mounted at the small diameter on a portion of a length of a catheter shaft.
Claim 13
Dependent Claim
29 words
12 . A delivery system according to claim 1 wherein said sheath is removable from the endoprosthesis by the application of tension to the corrugated portion of the sheath.
Claim 14
Dependent Claim
16 words
13 . A delivery system according to claim 12 wherein tension is applied via a tether.
Claim 15
Dependent Claim
19 words
14 . A delivery system according to claim 12 wherein tension is applied via an extension of the sheath.
Claim 16
Dependent Claim
22 words
15 . A delivery system according to claim 1 wherein said sheath is corrugated for substantially the entire length of the endoprosthesis.
Claim 17
Dependent Claim
19 words
16 . A delivery system according to claim 1 having a delivery profile of less than about 5.5 French.
Claim 18
Dependent Claim
129 words
17 . A delivery system for an endoprosthesis comprising an endoprosthesis having a length, a first, small diameter for insertion into a body conduit and a second, larger deployed diameter at which it is interferably fitted against a luminal surface of the body conduit, said endoprosthesis being covered at the first smaller diameter by a removable sheath that is longitudinally compressed over at least a portion of the length of the endoprosthesis, said sheath having a length portion that covers at least a portion of the length of the endoprosthesis at the first, small diameter of the endoprosthesis wherein a tensile force applied to the removable sheath in a direction parallel to the length of the endoprosthesis extends the length portion of the sheath by at least about 10%.
Claim 19
Dependent Claim
129 words
17 . A delivery system for an endoprosthesis comprising an endoprosthesis having a length, a first, small diameter for insertion into a body conduit and a second, larger deployed diameter at which it is interferably fitted against a luminal surface of the body conduit, said endoprosthesis being covered at the first smaller diameter by a removable sheath that is longitudinally compressed over at least a portion of the length of the endoprosthesis, said sheath having a length portion that covers at least a portion of the length of the endoprosthesis at the first, small diameter of the endoprosthesis wherein a tensile force applied to the removable sheath in a direction parallel to the length of the endoprosthesis extends the length portion of the sheath by at least about 10%.
Claim 20
Dependent Claim
26 words
18 . A delivery system according to claim 17 wherein the length of the sheath is extended by the tensile force by at least about 20%.
Claim 21
Dependent Claim
26 words
19 . A delivery system according to claim 18 wherein the length of the sheath is extended by the tensile force by at least about 50%.
Claim 22
Dependent Claim
26 words
20 . A delivery system according to claim 19 wherein the length of the sheath is extended by the tensile force by at least about 80%.
Claim 23
Dependent Claim
26 words
21 . A delivery system according to claim 20 wherein the length of the sheath is extended by the tensile force by at least about 100%.
Claim 24
Dependent Claim
14 words
22 . A delivery system according to claim 17 wherein said sheath comprises polytetrafluoroethylene
Claim 25
Dependent Claim
16 words
23 . A delivery system according to claim 22 wherein said polytetrafluoroethylene has a fibrillated microstructure.
Claim 26
Dependent Claim
16 words
24 . A delivery system according to claim 23 wherein said fibrillated microstructure has bent fibrils.
Claim 27
Dependent Claim
19 words
25 . A delivery system according to claim 17 wherein the longitudinally compressed portion of the sheath is corrugated.
Claim 28
Dependent Claim
15 words
26 . A delivery system according to claim 17 wherein said endoprosthesis is a stent.
Claim 29
Dependent Claim
16 words
27 . A delivery system according to claim 26 wherein said stent is a self-expanding stent.
Claim 30
Dependent Claim
15 words
28 . A delivery system according to claim 17 wherein said endoprosthesis is a stent-graft.
Claim 31
Dependent Claim
14 words
29 . A delivery system according to claim 28 wherein said stent-graft is self-expanding.
Claim 32
Dependent Claim
15 words
30 . A delivery system according to claim 17 wherein said endoprosthesis is a filter.
Claim 33
Dependent Claim
17 words
31 . A delivery system according to claim 30 wherein said filter is a vena cava filter.
Claim 34
Dependent Claim
15 words
32 . A delivery system according to claim 17 wherein said endoprosthesis is an occluder.
Claim 35
Dependent Claim
28 words
33 . A delivery system according to claim 17 wherein said endoprosthesis is mounted at the small diameter on a portion of a length of a catheter shaft.
Claim 36
Dependent Claim
30 words
34 . A delivery system according to claim 17 wherein said sheath is removable from the endoprosthesis by the application of tension to the longitudinally compressed portion of the sheath.
Claim 37
Dependent Claim
16 words
35 . A delivery system according to claim 34 wherein tension is applied via a tether.
Claim 38
Dependent Claim
19 words
36 . A delivery system according to claim 34 wherein tension is applied via an extension of the sheath.
Claim 39
Dependent Claim
23 words
37 . A delivery system according to claim 17 wherein said sheath is longitudinally compressed for substantially the entire length of the endoprosthesis.
Claim 40
Dependent Claim
19 words
38 . A delivery system according to claim 17 having a delivery profile of less than about 5.5 French.
Claim 41
Dependent Claim
94 words
39 . A method of deploying an endoprosthesis within a body conduit, said endoprosthesis having a length, a first, small diameter for insertion into the body conduit and a second, larger diameter at which it is interferably fitted against a luminal surface of the body conduit, comprising: a. providing an endoprosthesis constrained at the first smaller diameter within a sheath that has been longitudinally compressed over at least a portion of the length of the endoprosthesis; and b. applying tension to the sheath to release the endoprosthesis thereby allowing deployment to the larger diameter.
Claim 42
Dependent Claim
94 words
39 . A method of deploying an endoprosthesis within a body conduit, said endoprosthesis having a length, a first, small diameter for insertion into the body conduit and a second, larger diameter at which it is interferably fitted against a luminal surface of the body conduit, comprising: a. providing an endoprosthesis constrained at the first smaller diameter within a sheath that has been longitudinally compressed over at least a portion of the length of the endoprosthesis; and b. applying tension to the sheath to release the endoprosthesis thereby allowing deployment to the larger diameter.
Claim 43
Dependent Claim
18 words
40 . A method according to claim 39 wherein the longitudinally compressed portion of the sheath is corrugated.
Claim 44
Dependent Claim
13 words
41 . A method according to claim 40 wherein the sheath comprises polytetrafluoroethylene.
Claim 45
Dependent Claim
13 words
42 . A method according to claim 39 wherein the sheath comprises polytetrafluoroethylene.
Claim 46
Dependent Claim
15 words
43 . A method according to claim 42 wherein the polytetrafluoroethylene has a fibrillated microstructure.
Claim 47
Dependent Claim
20 words
44 . A method according to claim 43 wherein the fibrillated microstructure has bent fibrils within the longitudinally compressed portion.
Claim 48
Dependent Claim
24 words
45 . A method according to claim 39 wherein said sheath containing said endoprosthesis has a delivery profile of less than about 5.5 French.
References Cited (Backward Citations)
US4195623A
Cited
US4878906A
Cited
US4877661A
Cited
US5308664A
Cited
US5019085A
Cited
US5306249A
Cited
US6019787A
Cited
US5755769A
Cited
US5405378A
Cited
US5383928A
Cited
US5810870A
Cited
US5925075A
Cited
US5989280A
Cited
US5549635A
Cited
US5476506A
Cited
US5524757A
Cited
US5478349A
Cited
US6051431A
Cited
US20020040236A1
Cited
US5919225A
Cited
US6613072B2
Cited
US5765682A
Cited
US5647857A
Cited
US5534007A
Cited
US5824037A
Cited
US6042605A
Cited
US5948191A
Cited
US5944726A
Cited
US6086610A
Cited
US6447540B1
Cited
US5968052A
Cited
US6551350B1
Cited
US6048360A
Cited
US5993460A
Cited
US6224627B1
Cited
US20030176910A1
Cited
US6336937B1
Cited
US6090140A
Cited
US6533806B1
Cited
US6699277B1
Cited
US6702843B1
Cited
US6432130B1
Cited
US6387118B1
Cited
US20020052640A1
Cited
US20020099431A1
Cited
US6827731B2
Cited
US20030065376A1
Cited
US6974471B2
Cited
US20030139706A1
Cited
US20040143272A1
Cited
US20040172119A1
Cited
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