US20050004666A1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Annular prosthesis for mitral valve
Assignee: Edwards Lifesciences Corp
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Filing: 2003-12-18
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Granted: —
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Expires: 2023-12-18
Abstract
Abstract An annular prosthesis for a mitral valve that may include a posterior half-ring and an anterior half-ring coupled to each other on a first transverse plane which defines a maximum width section of the prosthesis. The ratio between the distance between the anterior half-ring and the posterior half-ring, as measured along a second plane, perpendicular to the first plane and equidistant to the couplings, and the maximum width of the prosthesis is lower than 3/4.
Inventors
- 👤 Ottavio Alfieri
- 👤 Francesco Maisano
- 👤 Alberto Redaelli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:04
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/24; A61F2/2442; A61F2/2445; A61F2/2448
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
5 words
1 - 6 . (canceled)
Claim 2
Dependent Claim
5 words
1 - 6 . (canceled)
Claim 3
Dependent Claim
124 words
7 . An annular prosthetic ring for a mitral valve comprising: a curved posterior section contiguous with a generally rectilinear anterior section and together forming a generally D-shaped periphery oriented about a central flow axis, wherein in plan view as seen along the flow axis the ring has a major axis perpendicular to a minor axis, wherein a maximum dimension of the ring periphery lies along the major axis and a minimum dimension of the ring periphery lies along the minor axis, and wherein the ring is undersized along the minor axis with respect to a conventional ring that has a minor axis-to-major axis dimension ratio of at least 3/4, and wherein the anterior section is not modified with respect to the conventional ring.
Claim 4
Dependent Claim
124 words
7 . An annular prosthetic ring for a mitral valve comprising: a curved posterior section contiguous with a generally rectilinear anterior section and together forming a generally D-shaped periphery oriented about a central flow axis, wherein in plan view as seen along the flow axis the ring has a major axis perpendicular to a minor axis, wherein a maximum dimension of the ring periphery lies along the major axis and a minimum dimension of the ring periphery lies along the minor axis, and wherein the ring is undersized along the minor axis with respect to a conventional ring that has a minor axis-to-major axis dimension ratio of at least 3/4, and wherein the anterior section is not modified with respect to the conventional ring.
Claim 5
Dependent Claim
26 words
8 . The annular prosthetic ring of claim 7 wherein the posterior section is squeezed inward toward the anterior section with respect to the conventional ring.
Claim 6
Dependent Claim
51 words
9 . The annular prosthetic ring of claim 7 wherein the posterior section has a central zone in which the distance between the posterior section and the anterior section is reduced with respect to the conventional ring, with the aim of obtaining a minor axis-to-major axis dimension ratio lower than 3/4.
Claim 7
Dependent Claim
27 words
10 . The annular prosthetic ring of claim 9 wherein the distance between the posterior section and anterior section in the central zone is equal to zero.
Claim 8
Dependent Claim
33 words
11 . The annular prosthetic ring of claim 7 wherein the posterior section is asymmetric across the minor axis to correct bad asymmetric apposition of the mitral valve leaflets as in ischemic pathology.
Claim 9
Dependent Claim
44 words
12 . The annular prosthetic ring of claim 11 wherein a first lateral portion of the posterior section on one side of the minor axis has a smaller radius of curvature than a second lateral portion on the opposite side of the minor axis.
Claim 10
Dependent Claim
22 words
13 . The annular prosthetic ring of claim 7 wherein the minor axis-to-major axis dimension ratio of the ring is about 0.625.
Claim 11
Dependent Claim
22 words
14 . The annular prosthetic ring of claim 7 wherein the minor axis-to-major axis dimension ratio of the ring is about 0.5.
Claim 12
Dependent Claim
125 words
15 . A set of annular prosthetic rings for a mitral valve all having the same identifying size, each ring comprising: a curved posterior section contiguous with a generally rectilinear anterior section and together forming a generally D-shaped periphery oriented about a central flow axis, wherein in plan view as seen along the flow axis the ring has a major axis perpendicular to a minor axis, wherein a maximum dimension of the ring periphery lies along the major axis and a minimum dimension of the ring periphery lies along the minor axis, and wherein each one of the set of rings is undersized along the minor axis with respect to a conventional ring that has a minor axis-to-major axis dimension ratio of at least 3/4.
Claim 13
Dependent Claim
125 words
15 . A set of annular prosthetic rings for a mitral valve all having the same identifying size, each ring comprising: a curved posterior section contiguous with a generally rectilinear anterior section and together forming a generally D-shaped periphery oriented about a central flow axis, wherein in plan view as seen along the flow axis the ring has a major axis perpendicular to a minor axis, wherein a maximum dimension of the ring periphery lies along the major axis and a minimum dimension of the ring periphery lies along the minor axis, and wherein each one of the set of rings is undersized along the minor axis with respect to a conventional ring that has a minor axis-to-major axis dimension ratio of at least 3/4.
Claim 14
Dependent Claim
28 words
16 . The set of annular prosthetic rings of claim 15 wherein a first ring in the set has a minor axis-to-major axis dimension ratio of about 0.625.
Claim 15
Dependent Claim
28 words
17 . The set of annular prosthetic rings of claim 15 wherein a first ring in the set has a minor axis-to-major axis dimension ratio of about 0.5.
Claim 16
Dependent Claim
35 words
18 . The set of annular prosthetic rings of claim 15 wherein the posterior section of a first ring in the set is squeezed inward toward the anterior section with respect to the conventional ring.
Claim 17
Dependent Claim
31 words
19 . The set of annular prosthetic rings of claim 15 wherein the anterior section of a first ring in the set is not modified with respect to the conventional ring
Claim 18
Dependent Claim
60 words
20 . The set of annular prosthetic rings of claim 15 wherein the posterior section of a first ring in the set has a central zone in which the distance between the posterior section and the anterior section is reduced with respect to the conventional ring, with the aim of obtaining a minor axis-to-major axis dimension ratio lower than 3/4.
Claim 19
Dependent Claim
33 words
21 . The set of annular prosthetic rings of claim 20 wherein the distance between the posterior section and anterior section in the central zone in the first ring is equal to zero.
Claim 20
Dependent Claim
42 words
22 . The set of annular prosthetic rings of claim 15 wherein the posterior section of a first ring in the set is asymmetric across the minor axis to correct bad asymmetric apposition of the mitral valve leaflets as in ischemic pathology.
Claim 21
Dependent Claim
50 words
23 . The set of annular prosthetic rings of claim 22 wherein a first lateral portion of the posterior section on one side of the minor axis of the first ring has a smaller radius of curvature than a second lateral portion on the opposite side of the minor axis.
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