US20030236565A1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Implantable prosthesis
Assignee: Boston Scientific Scimed Inc
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Filing: 2002-06-21
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Granted: —
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Expires: 2022-06-21
Abstract
Abstract A graft system for intraluminal delivery in a vessel in need of repair comprising a graft, anchoring means, and a strippable sheath around at least part of the graft. A preferred anchoring means is a balloon-expandable stent. Also included in the invention is a method of using the device to treat a body lumen. The strippable sheath is removable by pulling on a drawstring to remove it which permits expansion of the graft. The positioning of the device may then be adjusted prior to stent dilation. A preferred embodiment of the invention includes a bifurcated graft system for intraluminal delivery in an aortic aneurysm comprising a bifurcated graft having a distal region and two legs, an expandable stent disposed in part of the distal region, and a strippable crocheted sheath around the distal region and one of the two legs. The strippable crocheted sheath is removable by untying it to permit expansion of the graft after initial placement within the aneurysm.
Inventors
- 👤 Kristian DiMatteo
- 👤 Robert Thistle
- 👤 John Spiridigliozzi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:52
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/04; A61F2/06; A61F2/07; A61F2/95; A61F2/954; A61F2/958; A61F2/82; A61F2/86; A61F2/88; A61F2/89; A61F2002/065; A61F2002/075; A61F2002/9505; A61F2002/9511; A61F2002/9583; Y; Y10; Y10S; Y10S623/00; Y10S623/902; Y10S623/903
Claims Analysis
Total Claims: 42
Claim 1
Independent Claim
77 words
1 . A system for endoluminal delivery and emplacement of a prosthesis in a body lumen, comprising: a tubular graft having a central axis, a first radially compressed configuration for endoluminal delivery, and a second radially expanded configuration; radial expansion means for expanding the graft to its radially expanded configuration; and a strippable sheath surrounding at least part of the graft in the first configuration thereof, the strippable sheath being removable to permit expansion of the graft.
Claim 2
Dependent Claim
77 words
1 . A system for endoluminal delivery and emplacement of a prosthesis in a body lumen, comprising: a tubular graft having a central axis, a first radially compressed configuration for endoluminal delivery, and a second radially expanded configuration; radial expansion means for expanding the graft to its radially expanded configuration; and a strippable sheath surrounding at least part of the graft in the first configuration thereof, the strippable sheath being removable to permit expansion of the graft.
Claim 3
Dependent Claim
20 words
2 . The system of claim 1 further comprising anchoring means for anchoring said tubular graft in said body lumen.
Claim 4
Dependent Claim
28 words
3 . The system of claim 1 further comprising a drawstring extending from the strippable sheath, wherein retraction of the drawstring results in the removal of said sheath.
Claim 5
Dependent Claim
27 words
4 . The system of claim 3 wherein said strippable sheath is crocheted and retraction of said drawstring results in the untying and removal of said sheath.
Claim 6
Dependent Claim
13 words
5 . The system of claim 1 wherein the graft includes a bifurcation.
Claim 7
Dependent Claim
30 words
6 . The system of claim 5 wherein said graft includes an unbifurcated tubular distal section on one side thereof and two tubular distal sections on the other side thereof.
Claim 8
Dependent Claim
28 words
7 . The system of claim 6 wherein the strippable sheath extends around the unbifurcated distal section and only one of the bifurcated distal sections of the graft.
Claim 9
Dependent Claim
18 words
8 . The system of claim 6 wherein the strippable sheath extends around only the unbifurcated distal section.
Claim 10
Dependent Claim
16 words
9 . The system of claim 1 wherein the radial expansion means is an inflatable balloon.
Claim 11
Dependent Claim
14 words
10 . The system of claim 2 wherein the anchoring means is a stent.
Claim 12
Dependent Claim
19 words
11 . The system of claim 10 wherein the stent is disposed at only one end of the graft.
Claim 13
Dependent Claim
65 words
12 . The system of claim 1 for use in repairing an aortic aneurysm, wherein: the graft is a bifurcated graft having a distal aortic region and two distal iliac legs; a balloon expandable stent is disposed in the distal aortic region; and the strippable sheath is a crocheted strippable sheath which extends around the distal region and only one of the two distal legs.
Claim 14
Dependent Claim
118 words
13 . A system for endoluminal delivery and emplacement of a prosthesis in a body lumen, comprising: a tubular graft; a tubular stent disposed in at least part of the graft, the stent and graft having a common central axis, a first radially compressed configuration for endoluminal delivery and a second radially expanded configuration; radial expansion means for expanding the stent and graft to the radially expanded configurations thereof; a strippable sheath surrounding at least part of the graft in the first configuration thereof, the strippable crocheted sheath being removable to permit expansion of the graft and stent; and a drawstring extending from the strippable sheath, wherein retraction of the drawstring results in the untying of said sheath.
Claim 15
Dependent Claim
118 words
13 . A system for endoluminal delivery and emplacement of a prosthesis in a body lumen, comprising: a tubular graft; a tubular stent disposed in at least part of the graft, the stent and graft having a common central axis, a first radially compressed configuration for endoluminal delivery and a second radially expanded configuration; radial expansion means for expanding the stent and graft to the radially expanded configurations thereof; a strippable sheath surrounding at least part of the graft in the first configuration thereof, the strippable crocheted sheath being removable to permit expansion of the graft and stent; and a drawstring extending from the strippable sheath, wherein retraction of the drawstring results in the untying of said sheath.
Claim 16
Dependent Claim
20 words
14 . The system of claim 13 further comprising anchoring means for anchoring said tubular graft in said body lumen.
Claim 17
Dependent Claim
27 words
15 . The system of claim 13 wherein said strippable sheath is crocheted and retraction of said drawstring results in the untying and removal of said sheath.
Claim 18
Dependent Claim
13 words
16 . The system of claim 13 wherein the graft includes a bifurcation.
Claim 19
Dependent Claim
30 words
17 . The system of claim 16 wherein said graft includes an unbifurcated tubular distal section on one side thereof and two tubular distal sections on the other side thereof.
Claim 20
Dependent Claim
28 words
18 . The system of claim 17 wherein the strippable sheath extends around the unbifurcated distal section and only one of the bifurcated distal sections of the graft.
Claim 21
Dependent Claim
18 words
19 . The system of claim 17 wherein the strippable sheath extends around only the unbifurcated distal section.
Claim 22
Dependent Claim
16 words
20 . The system of claim 13 wherein the radial expansion means is an inflatable balloon.
Claim 23
Dependent Claim
14 words
21 . The system of claim 14 wherein the anchoring means is a stent.
Claim 24
Dependent Claim
19 words
22 . The system of claim 21 wherein the stent is disposed at only one end of the graft.
Claim 25
Dependent Claim
65 words
23 . The system of claim 13 for use in repairing an aortic aneurysm, wherein: the graft is a bifurcated graft having a distal aortic region and two distal iliac legs; a balloon expandable stent is disposed in the distal aortic region; and the strippable sheath is a crocheted strippable sheath which extends around the distal region and only one of the two distal legs.
Claim 26
Dependent Claim
85 words
24 . A bifurcated graft system for intraluminal delivery in an aortic aneurysm in need of repair comprising: a bifurcated graft having a distal region and two legs; an expandable stent disposed in part of said distal region; a strippable sheath around said distal region and one of said two legs, the strippable sheath being removable to permit expansion of the graft and stent; and a drawstring extending from said strippable crocheted sheath, wherein retraction of said drawstring results in the removal of said sheath.
Claim 27
Dependent Claim
85 words
24 . A bifurcated graft system for intraluminal delivery in an aortic aneurysm in need of repair comprising: a bifurcated graft having a distal region and two legs; an expandable stent disposed in part of said distal region; a strippable sheath around said distal region and one of said two legs, the strippable sheath being removable to permit expansion of the graft and stent; and a drawstring extending from said strippable crocheted sheath, wherein retraction of said drawstring results in the removal of said sheath.
Claim 28
Dependent Claim
182 words
25 . An aortic graft system for intraluminal delivery to repair an abdominal aortic aneurysm in an aorta having two iliac arteries associated therewith at an aortic bifurcation, comprising: a graft having a first end and an intermediate region disposed adjacent said first end, the graft being self expandable from a reduced profile for insertion into the aorta to an expanded profile; means for securing the first end of the graft to the aorta, the securing means having a first diameter which permits intraluminal delivery of the securing means into the aorta and the securing means having a second, expanded diameter, to secure the first end of the graft to the aorta; radial expansion means for expanding securing means and graft to the radially expanded configurations thereof; a strippable sheath covering at least part of said graft, the strippable sheath maintaining the graft in the reduced profile; and at least one drawstring extending from the strippable sheath, the drawstring being retractable to permit removal of the strippable sheath and subsequent expansion of the graft from its reduced profile to its expanded profile.
Claim 29
Dependent Claim
182 words
25 . An aortic graft system for intraluminal delivery to repair an abdominal aortic aneurysm in an aorta having two iliac arteries associated therewith at an aortic bifurcation, comprising: a graft having a first end and an intermediate region disposed adjacent said first end, the graft being self expandable from a reduced profile for insertion into the aorta to an expanded profile; means for securing the first end of the graft to the aorta, the securing means having a first diameter which permits intraluminal delivery of the securing means into the aorta and the securing means having a second, expanded diameter, to secure the first end of the graft to the aorta; radial expansion means for expanding securing means and graft to the radially expanded configurations thereof; a strippable sheath covering at least part of said graft, the strippable sheath maintaining the graft in the reduced profile; and at least one drawstring extending from the strippable sheath, the drawstring being retractable to permit removal of the strippable sheath and subsequent expansion of the graft from its reduced profile to its expanded profile.
Claim 30
Dependent Claim
17 words
26 . The graft system of claim 25 wherein said securing means includes a balloon expandable stent.
Claim 31
Dependent Claim
142 words
27 . A method of inserting a graft system to repair a vessel in need of repair comprising the steps of: inserting a catheter from a vessel access location into a vessel to a deployment location in need of repair, the catheter having a graft system disposed thereon, the graft system comprising: a centrally disposed push wire surrounded by a graft; anchoring means for anchoring said tubular graft in said vessel; a strippable sheath around at least part of the graft, the strippable sheath being removable to permit expansion of the graft; and a drawstring extending from the strippable sheath to the access location, wherein retraction of the drawstring results in the removal of the sheath; retracting the drawstring to cause removal of the strippable sheath to allow expansion of the graft; anchoring the graft within the vessel; and removing the catheter.
Claim 32
Dependent Claim
142 words
27 . A method of inserting a graft system to repair a vessel in need of repair comprising the steps of: inserting a catheter from a vessel access location into a vessel to a deployment location in need of repair, the catheter having a graft system disposed thereon, the graft system comprising: a centrally disposed push wire surrounded by a graft; anchoring means for anchoring said tubular graft in said vessel; a strippable sheath around at least part of the graft, the strippable sheath being removable to permit expansion of the graft; and a drawstring extending from the strippable sheath to the access location, wherein retraction of the drawstring results in the removal of the sheath; retracting the drawstring to cause removal of the strippable sheath to allow expansion of the graft; anchoring the graft within the vessel; and removing the catheter.
Claim 33
Dependent Claim
34 words
28 . The method of claim 27 wherein the anchoring means comprises a balloon expandable stent and said anchoring step comprises inflating a balloon disposed on the catheter to expand said balloon expandable stent.
Claim 34
Dependent Claim
15 words
29 . The method of claim 27 wherein the strippable sheath is a crocheted sheath.
Claim 35
Dependent Claim
47 words
30 . The method of claim 27 wherein the vessel in need of repair is a bifurcated vessel, the graft is bifurcated having a distal region and two distal legs, and the strippable sheath extends around the distal region and only one of the two distal legs.
Claim 36
Dependent Claim
18 words
31 . The method of claim 30 wherein said vessel in need of repair is an aortic aneurysm.
Claim 37
Dependent Claim
45 words
32 . The method of claim 27 wherein said inserting step is through one iliac artery, further comprising the step of: before said retracting step, pulling the leg not covered by the strippable crocheted sheath into the iliac artery not used to insert the catheter.
Claim 38
Dependent Claim
160 words
33 . A method of inserting a graft system to repair a vessel in need of repair comprising the steps of: inserting a catheter from a vessel access location into a vessel to a deployment location in need of repair, the catheter having a graft system disposed thereon, the graft system comprising: a centrally disposed push wire surrounded by a graft; an expandable stent disposed in at least part of the graft; a strippable crocheted sheath around at least part of the graft, the strippable crocheted sheath being removable to permit expansion of the graft and stent; and a drawstring extending from the strippable crocheted sheath to the access location, wherein retraction of the drawstring results in the untying and removal of the sheath; retracting the drawstring to cause untying and removal of the strippable crocheted sheath to allow expansion of the graft; expanding the stent to anchor the stent and the graft within the vessel; and removing the catheter.
Claim 39
Dependent Claim
160 words
33 . A method of inserting a graft system to repair a vessel in need of repair comprising the steps of: inserting a catheter from a vessel access location into a vessel to a deployment location in need of repair, the catheter having a graft system disposed thereon, the graft system comprising: a centrally disposed push wire surrounded by a graft; an expandable stent disposed in at least part of the graft; a strippable crocheted sheath around at least part of the graft, the strippable crocheted sheath being removable to permit expansion of the graft and stent; and a drawstring extending from the strippable crocheted sheath to the access location, wherein retraction of the drawstring results in the untying and removal of the sheath; retracting the drawstring to cause untying and removal of the strippable crocheted sheath to allow expansion of the graft; expanding the stent to anchor the stent and the graft within the vessel; and removing the catheter.
Claim 40
Dependent Claim
27 words
34 . The method of claim 33 wherein the stent is a balloon expandable stent and said expanding step comprises inflating a balloon disposed on said catheter.
Claim 41
Dependent Claim
48 words
35 . The method of claim 33 wherein the vessel in need of repair is an aortic aneurysm, the graft is bifurcated having a distal region and two distal legs, and the strippable crocheted sheath extends around the distal region and only one of the two distal legs.
Claim 42
Dependent Claim
45 words
36 . The method of claim 35 wherein said inserting step is through one iliac artery, further comprising the step of: before said retracting step, pulling the leg not covered by the strippable crocheted sheath into the iliac artery not used to insert the catheter.
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