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US20110040366A1 Active / In Force US ⏱️ 2.4 years remaining

Stent which is reduceable again in its diameter from an expanded state in a controlled manner

Assignee: Venus Medtech Hangzhou Inc
•
Filing: 2009-03-02
•
Granted: —
•
Expires: 2029-03-02
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Abstract

Abstract The present invention proposes a catheter ( 1 ) for detachably receiving an expandable and/or decollapsible or unfoldable, respectively, implant, in particular a stent ( 13 ), wherein the catheter ( 1 ) comprises at least one means ( 2 a, 2 b, 2 c, 4 a, 4 b, 4 c, 4′, 4″, 4′″, 5 ) for controlling the expansion and/or the unfolding or decollapsing, respectively, of the implant from a first diameter to a second diameter and/or its return back from the second diameter to the first diameter. Furthermore, an implant, in particular a stent ( 13 ), and a set are proposed.

Inventors

  • 👤 Wolfgang GOETZ
  • 👤 Hou Sen Lim

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-22 15:30
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/95; A61F2/02; A61F2/24; A61F2/2412; A61F2/2418; A61F2/2427; A61F2/2439; A61F2/82; A61F2/86; A61F2/90; A61F2/91; A61F2/915; A61M; A61M25/00; A61M25/01; A61M25/06; A61F2/88; A61F2002/9155; A61F2002/9505; A61F2002/9511; A61F2002/9528; A61F2002/9534; A61F2230/00; A61F2230/0002; A61F2230/0028; A61F2230/0054; A61F2230/0063; A61F2230/0091

Claims Analysis

Total Claims: 21
Claim 1
Independent Claim 5 words
1 - 18 . (canceled)
Claim 2
Dependent Claim 5 words
1 - 18 . (canceled)
Claim 3
Dependent Claim 67 words
19 . A catheter for detachably receiving an expandable and/or decollapsible or unfoldable, respectively, implant, in particular stent, wherein the catheter comprises at least one means for controlling the expansion and/or the unfolding or decollapsing, respectively, of the implant from a first diameter to a second diameter and/or its return back from the second diameter to the first diameter; or is prepared for receiving such a means.
Claim 4
Dependent Claim 67 words
19 . A catheter for detachably receiving an expandable and/or decollapsible or unfoldable, respectively, implant, in particular stent, wherein the catheter comprises at least one means for controlling the expansion and/or the unfolding or decollapsing, respectively, of the implant from a first diameter to a second diameter and/or its return back from the second diameter to the first diameter; or is prepared for receiving such a means.
Claim 5
Dependent Claim 27 words
20 . A catheter according to claim 19 , wherein the means for controlling comprises at least one passage means for letting pass one or more reins.
Claim 6
Dependent Claim 32 words
21 . A catheter according to claim 20 , wherein the expansion and/or decollapsing or unfolding, respectively, of the implant is controllable by changing the tension or stress, respectively, of the rein.
Claim 7
Dependent Claim 32 words
22 . A catheter according to claim 20 , wherein the rein can be passed from an interior of the catheter to an exterior of the catheter by means of passage means.
Claim 8
Dependent Claim 34 words
23 . A catheter according to claim 20 , comprising at least one passage means, in particular a passage opening, for inserting the rein in an open or closed elongated void of the catheter.
Claim 9
Dependent Claim 26 words
24 . A catheter according to claim 23 , wherein the elongated void is located at the proximal and/or at the distal end of the catheter.
Claim 10
Dependent Claim 24 words
25 . A catheter according to claim 19 , comprising at least one inflatable means, in particular an inflatable balloon, for expanding the implant.
Claim 11
Dependent Claim 14 words
26 . A catheter according to claim 19 , comprising at least one rein.
Claim 12
Dependent Claim 78 words
27 . A catheter according to claim 19 , which is suited and/or prepared for a connection to a control device for controlling the means for controlling the expansion and/or the decollapsing or unfolding, respectively, of the implant from a first diameter to a second diameter and/or its return back from the second diameter to the first diameter, in particular for controlling the tension or stress, respectively, applied to the rein and/or the strain applied to the rein.
Claim 13
Dependent Claim 20 words
28 . A catheter according to claim 19 , comprising a plurality of channels or lumina for guiding through reins.
Claim 14
Dependent Claim 23 words
29 . A catheter according to claim 19 , comprising at least one lumen or a channel for guiding through a further means.
Claim 15
Dependent Claim 71 words
30 . An implant, in particular a stent comprising at least one means which is provided and prepared with the means of a catheter according to claim 19 for controlling the expansion and/or the decollapsing or the unfolding, respectively, of the implant from a first diameter to a second diameter and/or its return back from the second diameter to the first diameter in order to control the change of the diameter.
Claim 16
Dependent Claim 80 words
31 . An implant, in particular a stent, particularly according to claim 30 , comprising at least one guiding means which is prepared and suited for guiding at least one rein by which at least one section of the implant is expandable and/or decollapsible or unfoldable, respectively, from the first diameter to the second diameter and/or is returnable back from the second diameter to the first diameter by changing the tension or stress, respectively, or strain applied to the rein.
Claim 17
Dependent Claim 26 words
32 . An implant according to claim 30 which is designed or embodied as a valve supporting stent, in particular as a heart valve supporting stent.
Claim 18
Dependent Claim 17 words
33 . An implant according to claim 30 , comprising a memory shape material, in particular nitinol.
Claim 19
Dependent Claim 44 words
34 . An implant according to claim 30 , comprising or consisting of a section which is prepared and suited for being expandable and/or decollapsible or unfoldable, respectively, and/or returnable back to a reduced diameter by use of the rein in a controlled manner.
Claim 20
Dependent Claim 34 words
35 . A set, comprising at least one catheter according to claim 19 ; and at least one expandable and/or decollapsible or unfoldable, respectively, implant, in particular a stent, according to claim 30 .
Claim 21
Dependent Claim 23 words
36 . A set according to claim 35 in which the catheter is arranged in the center of a cross-section of the implant.

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