Patent GB191515937A successfully refreshed from Google Patents.
US20050043790A1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Kit enabling a prosthetic valve to be placed in a body enabling a prosthetic valve to be put into place in a duct in the body
Assignee: CoreValve SA
•
Filing: 2002-07-04
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Granted: —
•
Expires: 2022-07-04
Abstract
Abstract The present invention is an assembly comprising a prosthetic valve to be implanted; a radially expandable stent comprising at least one zone intended to be expanded to allow the stent, in the expanded state, to bear against the wall of the body duct to be fitted with the valve, this bearing making it possible to immobilize this stent with respect to this wall; and means for mounting the valve with respect to the stent, making it possible to connect the valve to the stent in such a way that the placement of the stent allows the valve to be mounted in the body duct, and expansion means such as a balloon catheter being provided to trigger expansion of the stent at the implantation site. According to the invention, the valve and the stent are designed in such a way that, at the moment when the stent is expanded, the valve is situated outside the zone or zones of the stent that are subjected to said expansion means. The invention thus consists in separating the valve and said zone or zones to be expanded, so that the expansion of the stent can be effected with an expansion force suitable for perfect anchoring of this stent in the wall of the body duct to be fitted with the valve, and without any risk of destruction or damage of the valve.
Inventors
- 👤 Jacques Seguin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:46
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/24; A61F2/2403; A61F2/2412; A61F2/2418; A61F2220/00; A61F2220/0008; A61F2220/0016; A61F2220/0025; A61F2220/005; A61F2230/00; A61F2230/0063; A61F2230/0067; A61F2250/00; A61F2250/0058; A61F2250/006
Claims Analysis
Total Claims: 43
Claim 1
Independent Claim
5 words
1 - 21 . (canceled).
Claim 2
Dependent Claim
5 words
1 - 21 . (canceled).
Claim 3
Dependent Claim
67 words
22 . A prosthetic valve assembly comprising: an implantable prosthetic valve; a radially expandable stent comprising at least one expandable zone that is configured, in an expanded state, to bear against a wall of the native body lumen in a manner so as to resist migration; and means for mounting the valve on the stent such that, when expanded, the valve is positioned outside of the zone.
Claim 4
Dependent Claim
67 words
22 . A prosthetic valve assembly comprising: an implantable prosthetic valve; a radially expandable stent comprising at least one expandable zone that is configured, in an expanded state, to bear against a wall of the native body lumen in a manner so as to resist migration; and means for mounting the valve on the stent such that, when expanded, the valve is positioned outside of the zone.
Claim 5
Dependent Claim
26 words
23 . The assembly of claim 22 , further comprising expansion means to expand at least the zone of the stent at the desired implantation site.
Claim 6
Dependent Claim
23 words
24 . The assembly of claim 22 , where in the stent is mounted within a second zone distinct from the first zone.
Claim 7
Dependent Claim
41 words
25 . The assembly of claim 24 , wherein the mounting means comprises conduits on a peripheral wall of the valve and arms arranged on the stent, the peripheral wall of the valve configured to engage and slide on the arms.
Claim 8
Dependent Claim
63 words
26 . The assembly of claim 22 , wherein the mounting means is configured such that the valve is axially movable with respect to the stent between a position of non-implantation outside the first zone to be expanded, and a position of implantation, which it can reach after expansion of the stent, in which it is immobilized axially with respect to the stent.
Claim 9
Dependent Claim
29 words
27 . The assembly of claim 26 , wherein the mounting means comprises radially positioned fastening members mounted on the valve configured to be inserted into the body wall.
Claim 10
Dependent Claim
28 words
28 . The assembly of claim 27 , wherein the fastening member are configured to insert into the body upon a pivoting of the valve about its axis.
Claim 11
Dependent Claim
31 words
29 . The assembly of claim 27 , wherein the fastening member are configured to insert into the body upon a longitudinal movement of the valve with respect to the stent.
Claim 12
Dependent Claim
17 words
30 . The assembly of claim 27 , wherein the fastening members comprise spikes, hooks or claws.
Claim 13
Dependent Claim
15 words
31 . The assembly of claim 26 , wherein the mounting means comprises burstable vesicles.
Claim 14
Dependent Claim
15 words
32 . The assembly of claim 31 , wherein the vesicles are filled with adhesive.
Claim 15
Dependent Claim
25 words
33 . The assembly of claim 32 , wherein the vesicles are configured to burst when the valve is brought into its position of implantation.
Claim 16
Dependent Claim
48 words
34 . The assembly of claim 26 , wherein the mounting means comprises at least one band integrated in the peripheral wall of the valve and having a shape memory, so that it keeps the valve pressed against the stent in the position of implantation of this valve.
Claim 17
Dependent Claim
14 words
35 . The assembly of claim 34 , wherein the band comprises a wire.
Claim 18
Dependent Claim
15 words
36 . The assembly of claim 34 , wherein the band is circular in shape.
Claim 19
Dependent Claim
15 words
37 . The assembly of claim 34 , wherein the band is helical in shape.
Claim 20
Dependent Claim
14 words
38 . The assembly of claim 26 , wherein the mounting means comprises conduits.
Claim 21
Dependent Claim
33 words
39 . The assembly of claim 38 , further comprising rods configured to engage and slide through the conduits as the valve moves from its position of non-implantation to its position of implantation.
Claim 22
Dependent Claim
25 words
40 . The assembly of claim 39 , further comprising means to immobilize the conduits with respect to the rods in the position of implantation.
Claim 23
Dependent Claim
29 words
41 . The assembly of claim 40 , further comprising wires connected to the rods and configured to pass through said conduits to guide said rods in the conduits.
Claim 24
Dependent Claim
60 words
42 . The assembly of claim 22 , wherein the mounting means is configured such that beyond a threshold of expansion of the stent, said means permits a different amount of expansion of the valve and the stent, whereby the variation in the degree of expansion of the stent does not substantially impact the degree of expansion of the valve.
Claim 25
Dependent Claim
18 words
43 . The assembly of claim 22 , further comprising means for limiting the expansion of the valve.
Claim 26
Dependent Claim
36 words
44 . The assembly of claim 22 , wherein the valve comprises a peripheral wall with a tapered diameter in the axial direction and the zone of the stent supporting the valve has a corresponding shape.
Claim 27
Dependent Claim
46 words
45 . The assembly of claim 22 , wherein the the stent comprises a middle portion having a smaller diameter than at end portions thereof, the valve having a shape corresponding to that zone of the stent in whose area it is intended to be mounted.
Claim 28
Dependent Claim
17 words
46 . The assembly of claim 45 , wherein the middle portion forms two inverted truncated cones.
Claim 29
Dependent Claim
16 words
47 . The assembly of claim 45 , wherein the middle portion forms an hourglass shape.
Claim 30
Dependent Claim
87 words
48 . The assembly of claim 22 , wherein the valve has a peripheral wall and the stent has, in the distal continuation of that zone of the stent intended to receive the valve, a foldable portion movable between an extended position, in which it is situated in the distal continuation of said zone, and a folded position, in which it is placed against the inner face of the peripheral wall of the valve, and traps this peripheral wall between it and said zone of the stent.
Claim 31
Dependent Claim
21 words
49 . The assembly of claim 48 , further comprising retaining means for keeping this foldable portion in a folded position.
Claim 32
Dependent Claim
58 words
50 . The assembly of claim 49 , characterized in that said retaining means are formed by a wire ( 46 ) made of a material which is rigid but has a degree of elastic flexibility, for example a metal material having an undulated form and extending over the entire circumference of said foldable portion ( 45 ).
Claim 33
Dependent Claim
25 words
51 . The assembly of claim 22 , further comprising a sheath that comprises an impermeable biocompatible material and at least partially covers the stent.
Claim 34
Dependent Claim
26 words
52 . The assembly of claim 52 , wherein the sheath has lateral openings that are configured to be positioned opposite the coronary ostia when implanted.
Claim 35
Dependent Claim
25 words
53 . The assembly of claim 48 , further comprising a sheath that comprises an impermeable biocompatible material and at least partially covers the stent.
Claim 36
Dependent Claim
34 words
54 . The assembly of claim 53 , wherein the foldable portion is formed by a continuation of the sheath forming a sleeve beyond the zone of the stent intended to receive the valve.
Claim 37
Dependent Claim
41 words
55 . The assembly of claim 51 , further comprising an inflatable peripheral chamber configured to be inflated so as to substantially form a seal between the stent and the wall of the body lumen to be fitted with the valve.
Claim 38
Dependent Claim
32 words
56 . The assembly of claim 55 , comprising a plurality of inflatable peripheral chambers positioned radially on the portion of the stent intended to bear against the native cardiac valvular ring.
Claim 39
Dependent Claim
35 words
57 . The assembly of claim 22 , wherein the stent comprises a cylindrical portion that is configured to bear against the native cardiac valvular ring and a distal portion connected to the cylindrical portion.
Claim 40
Dependent Claim
44 words
58 . The assembly of claim 22 , wherein the the stent comprises a tapered proximal portion whose diameter decreases in the distal direction and is configured to, upon implantation, to bear against the wall of the ventricle or corresponding auricle of the heart.
Claim 41
Dependent Claim
49 words
59 . The assembly of claim 58 , further comprising a supplementary bearing portion on the stent connected by rods to the distal portion or to the cylindrical portion, the rods configured of sufficient length so that, when implanted, the supplementary bearing portion is positioned beyond the coronary ostia.
Claim 42
Dependent Claim
18 words
60 . The assembly of claim 22 , further comprising retractable hooks on the stent to minimize migration.
Claim 43
Dependent Claim
18 words
61 . The assembly of claim 22 , wherein the stent comprises a portion of high radial force.
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