US20040236406A1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mechanism to improve stent securement
Assignee: Boston Scientific Scimed Inc
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Filing: 2003-05-20
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Granted: —
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Expires: 2023-05-20
Abstract
Abstract The present invention comprises a securement member to improve securement of a stent upon an expandable balloon and delivery catheter, and to constrain portions of the stent before and during stent deployment. Generally, the securement member comprises a securement connector arranged to engage a catheter, at least one flexible connecting member coupled to the securement connector, and a locking member arranged to engage a portion of a stent.
Inventors
- 👤 Daniel Gregorich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:37
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/82; A61F2/86; A61F2/90; A61F2/91; A61F2/915; A61F2/95; A61F2/958; A61F2/02; A61F2/30; A61F2002/30001; A61F2002/30316; A61F2002/30329; A61F2002/30428; A61F2002/828; A61F2002/91525; A61F2002/91533; A61F2002/9155; A61F2002/91558; A61F2002/91591; A61F2002/9505; A61F2002/9583; A61F2220/00; A61F2220/0025; A61F2230/00; A61F2230/0002; A61F2230/0028; A61F2230/0054
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
75 words
1 . A device for preventing stent movement during delivery comprising: a securement connector arranged to engage a catheter; at least one flexible connecting member made from a shape memory material, said flexible connecting member having a first end portion and a second end portion, the first end portion coupled to said securement connector; and a locking member located at said flexible connecting member second end portion arranged to engage a portion of a stent.
Claim 2
Dependent Claim
75 words
1 . A device for preventing stent movement during delivery comprising: a securement connector arranged to engage a catheter; at least one flexible connecting member made from a shape memory material, said flexible connecting member having a first end portion and a second end portion, the first end portion coupled to said securement connector; and a locking member located at said flexible connecting member second end portion arranged to engage a portion of a stent.
Claim 3
Dependent Claim
16 words
2 . The device of claim 1 , further comprising a plurality of flexible connecting members.
Claim 4
Dependent Claim
20 words
3 . The device of claim 2 , wherein said flexible connecting members are arranged to expand with the stent.
Claim 5
Dependent Claim
16 words
4 . The device of claim 2 , wherein the circumferential band is a serpentine band.
Claim 6
Dependent Claim
16 words
5 . The device of claim 1 , wherein the flexible connecting member is balloon expandable.
Claim 7
Dependent Claim
23 words
6 . The device of claim 5 , wherein the shape memory material has an Af temperature lower than normal human body temperature.
Claim 8
Dependent Claim
28 words
7 . In combination, the device of claim 1 and a catheter, the catheter having a balloon with a stent disposed thereabout, the stent engaged to the device.
Claim 9
Dependent Claim
20 words
8 . The combination of claim 7 wherein the stent includes an engagable portion arranged to engage said locking member.
Claim 10
Dependent Claim
34 words
9 . The combination of claim 8 wherein the device is made of a shape memory material which is balloon expandable and which is programmed to return to an unexpanded diameter following balloon expansion.
Claim 11
Dependent Claim
81 words
10 . A stent delivery system comprising: a catheter; an expandable balloon; a radially expandable stent having at least one engagable portion; at least one radially expandable constrainment member having a first end coupled to said catheter and a second end having at least one engaging portion; wherein said constrainment member engaging portion and said stent engagable portion are engaged; and wherein said constrainment member engaging portion and said stent engagable portion may remain engaged throughout the expansion of said balloon.
Claim 12
Dependent Claim
81 words
10 . A stent delivery system comprising: a catheter; an expandable balloon; a radially expandable stent having at least one engagable portion; at least one radially expandable constrainment member having a first end coupled to said catheter and a second end having at least one engaging portion; wherein said constrainment member engaging portion and said stent engagable portion are engaged; and wherein said constrainment member engaging portion and said stent engagable portion may remain engaged throughout the expansion of said balloon.
Claim 13
Dependent Claim
33 words
11 . The stent delivery system of claim 10 , wherein said constrainment member engaging portion and said stent engagable portion are constructed and arranged to remain engaged until said balloon is deflated.
Claim 14
Dependent Claim
21 words
12 . The stent delivery system of claim 11 , wherein said constrainment member is made from a shape memory material.
Claim 15
Dependent Claim
25 words
13 . The stent delivery system of claim 12 wherein the constrainment member is programmed to return to a reduced diameter configuration following balloon expansion.
Claim 16
Dependent Claim
20 words
14 . The stent delivery system of claim 13 wherein the constrainment is in the form of serpentine shaped band.
Claim 17
Dependent Claim
20 words
15 . The stent delivery system of claim 10 wherein the constrainment is in the form of serpentine shaped band.
Claim 18
Dependent Claim
29 words
14 . The stent delivery system of claim 10 wherein said constrainment member engaging portion and said stent engagable portion are in the form of a ball and socket.
Claim 19
Dependent Claim
120 words
15 . A stent delivery system comprising: a catheter; an expandable balloon; a radially expandable stent arranged about said expandable balloon in an unexpanded state, said stent having an end portion, said end portion having at least one engagable portion; at least one radially expandable constrainment member arranged to partially overlay said balloon, said constrainment member having a first end coupled to said catheter and comprising a circumferential band having a plurality of openings therethrough and an engaging portion; wherein said constrainment member engaging portion is arranged to engage said stent engagable portion; and wherein when said constrainment member engaging portion and said stent engagable portion are engaged, movement of said stent engagable portion in the axial direction is prevented.
Claim 20
Dependent Claim
120 words
15 . A stent delivery system comprising: a catheter; an expandable balloon; a radially expandable stent arranged about said expandable balloon in an unexpanded state, said stent having an end portion, said end portion having at least one engagable portion; at least one radially expandable constrainment member arranged to partially overlay said balloon, said constrainment member having a first end coupled to said catheter and comprising a circumferential band having a plurality of openings therethrough and an engaging portion; wherein said constrainment member engaging portion is arranged to engage said stent engagable portion; and wherein when said constrainment member engaging portion and said stent engagable portion are engaged, movement of said stent engagable portion in the axial direction is prevented.
Claim 21
Dependent Claim
36 words
16 . The stent delivery system of claim 15 , wherein when said constrainment member engaging portion and said stent engagable portion are engaged, said stent engagable portion is further constrained from rotation about the catheter.
Claim 22
Dependent Claim
38 words
17 . The stent delivery system of claim 15 , wherein when said constrainment member engaging portion and said stent engagable portion are engaged, said stent engagable portion is free to move in the direction of radial expansion.
References Cited (Backward Citations)
US4655771B1
Cited
US4954126A
Cited
US4954126B1
Cited
US4655771A
Cited
US4735665A
Cited
US5061275A
Cited
US4740207A
Cited
US4950227A
Cited
US5226880A
Cited
US5116318A
Cited
US5476476A
Cited
US5108416A
Cited
US5387235A
Cited
US5409495A
Cited
US5445646A
Cited
US5972018A
Cited
US6309402B1
Cited
US6179817B1
Cited
US5556414A
Cited
US5591197A
Cited
US5607442A
Cited
US5968096A
Cited
US6123712A
Cited
US6068634A
Cited
US6077273A
Cited
US6506201B2
Cited
US20020156519A1
Cited
US6159227A
Cited
US5944726A
Cited
US6007543A
Cited
US5741327A
Cited
US6589251B2
Cited
US6132461A
Cited
US6558415B2
Cited
US6350277B1
Cited
US5976155A
Cited
US6569192B1
Cited
US6110180A
Cited
US6183505B1
Cited
US6258099B1
Cited
US6478814B2
Cited
US6673107B1
Cited
US6264683B1
Cited
US6468299B2
Cited
US6387118B1
Cited
US6494906B1
Cited
US6554841B1
Cited
US20020055767A1
Cited
US20030074043A1
Cited
US20020120322A1
Cited
US6837901B2
Cited
US6818013B2
Cited
US20030033000A1
Cited
US20030074044A1
Cited
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