US20070233223A1
Active / In Force
US
⏱️ 0.4 years remaining
Device for treating a blood circulation canal and process for preparing this device
Assignee: W.L. Gore and Associates Inc
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Filing: 2007-04-03
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Granted: —
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Expires: 2027-04-03
Abstract
Abstract This device comprises a hollow support ( 13 ) delimiting, in the vicinity of a distal end ( 19 ), a transverse retention opening ( 23 A). It comprises an endoprosthesis ( 11 ) which can be deployed between a state retracted against the support ( 13 ) and an expanded state. The device comprises a filamentary connection ( 33 A) forming a clamping ring ( 43 ) surrounding the endoprosthesis ( 11 ) and forming a loop ( 45 ) engaged in the support ( 13 ) through the retention opening ( 23 A). The device comprises a retention rod ( 31 A) mounted to be movable in the support ( 13 ). The retention rod ( 31 A) comprises a hook ( 35 ) for retaining the loop ( 45 ). The displacement of the retention rod ( 31 A) from a release position to a retention position brings about the tightening of the clamping ring ( 43 ). Application to the release of endoprostheses in a blood circulation canal.
Inventors
- 👤 Mikolaj Styrc
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 15:26
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/24; A61F2/2427; A61F2/2439; A61F2/95; A61F2/04; A61F2/06; A61F2/07; A61F2002/9505; A61F2002/9511
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
190 words
1 . Device for treating a blood circulation canal, of the type comprising: a hollow support delimiting, in the vicinity of a distal end, at least one transverse retention opening; an endoprosthesis which can be deployed between a state retracted against a lateral surface of the support and an expanded state in which the endoprosthesis can be released from the support; at least one filamentary connection forming a clamping ring surrounding the endoprosthesis and forming a loop engaged in the support through the retention opening; the clamping ring being extensible between a configuration for maintaining the endoprosthesis in its retracted state and a configuration for deploying the endoprosthesis; and, for the or each filamentary connection, a retention rod which is mounted to be movable in the support between a position for retaining the loop and a position for releasing the loop; wherein the retention rod comprises at least one hook for retaining the loop, the displacement of the retention rod from its release position to its retention position bringing about the tightening of the clamping ring from its configuration for deploying the endoprosthesis to its configuration for maintaining the endoprosthesis.
Claim 2
Dependent Claim
190 words
1 . Device for treating a blood circulation canal, of the type comprising: a hollow support delimiting, in the vicinity of a distal end, at least one transverse retention opening; an endoprosthesis which can be deployed between a state retracted against a lateral surface of the support and an expanded state in which the endoprosthesis can be released from the support; at least one filamentary connection forming a clamping ring surrounding the endoprosthesis and forming a loop engaged in the support through the retention opening; the clamping ring being extensible between a configuration for maintaining the endoprosthesis in its retracted state and a configuration for deploying the endoprosthesis; and, for the or each filamentary connection, a retention rod which is mounted to be movable in the support between a position for retaining the loop and a position for releasing the loop; wherein the retention rod comprises at least one hook for retaining the loop, the displacement of the retention rod from its release position to its retention position bringing about the tightening of the clamping ring from its configuration for deploying the endoprosthesis to its configuration for maintaining the endoprosthesis.
Claim 3
Dependent Claim
21 words
2 . Device according to claim 1 , wherein the hook is placed at a distal end of the retention rod.
Claim 4
Dependent Claim
40 words
3 . Device according to claim 1 , wherein the hook delimits, on the retention rod, a distal section of non-zero length and a proximal section, the hook projecting transversely relative to the distal section and to the proximal section
Claim 5
Dependent Claim
38 words
4 . Device according to claim 1 , wherein the endoprosthesis delimits, for the or for each filamentary connection, a guide passage for the filamentary connection, the ends of the clamping ring being engaged in the guide passage.
Claim 6
Dependent Claim
45 words
5 . Device according to claim 4 , wherein the or each filamentary connection is a strand which is closed on itself, the loop being formed by an extension of the clamping ring extending from the guide passage between the ends of the clamping ring.
Claim 7
Dependent Claim
20 words
6 . Device according to claim 1 , wherein the or each filamentary connection is mounted permanently on the endoprosthesis.
Claim 8
Dependent Claim
36 words
7 . Device according to claim 1 , wherein the support delimits a proximal retention opening and a distal retention opening, the device comprising, for each retention opening, a separate retention rod comprising a retention hook.
Claim 9
Dependent Claim
36 words
8 . Device according to claim 1 , wherein the support delimits a proximal retention opening and a distal retention opening, the device comprising a common retention rod comprising a distal hook and a proximal hook.
Claim 10
Dependent Claim
17 words
9 . Device according to claim 1 , wherein the endoprosthesis is mounted coaxially on the support.
Claim 11
Dependent Claim
73 words
10 . Device according to claim 1 , wherein the or each filamentary connection is releasable from the endoprosthesis, the retention rod comprising means for retaining at least one retention section of the filamentary connection which is separate from the loop, the section being retained by the retention means when the loop is released from the retention hook, in order to permit the joint displacement of the filamentary connection and the retention rod.
Claim 12
Dependent Claim
52 words
11 . Device according to claim 10 , wherein the retention section of the filamentary connection forms an auxiliary loop engaged in the support through a retention opening, the retention rod comprising an auxiliary hook for retaining the auxiliary loop, which hook opens proximally relative to the hook for retaining the loop.
Claim 13
Dependent Claim
89 words
12 . Process for preparing a device according to claim 1 , before it is implanted in a blood circulation canal, wherein it comprises the following steps: (a) preservation of the endoprosthesis in its expanded state, the or each loop being engaged in a hook of a rod for retaining the loop; (b) displacement of the retention rod from its release position to the position for retaining the loop, in order to bring about the tightening of the clamping ring and to bring the endoprosthesis into its retracted state.
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