US20060009842A1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Contoured heart valve suture rings
Assignee: Edwards Lifesciences Corp
•
Filing: 2005-08-12
•
Granted: —
•
Expires: 2025-08-12
Abstract
Abstract Improved, adaptable tissue-type heart valves and methods for their manufacture are disclosed wherein a dimensionally stable, pre-aligned tissue leaflet subassembly is formed and its peripheral edge clamped between and attached to an upper shaped wireform and a lower support stent. A variety of adaptable structural interfaces including suture rings, flanges, and conduits may be attached to the support stent with or without an outlet conduit disposed about the wireform to provide a tissue-type heart valve adaptable for use in either a natural heart or in mechanical pumping devices. The methods include forming individual leaflets with a template and using the template to attach the leaflets together to form a tissue leaflet subassembly. The template and leaflets include a straight edge terminating in oppositely directed tabs, and a curvilinear cusp edge extending opposite the straight edge. The template may include a guide slot in its straight edge and the assembly includes aligning two leaflet tabs with the template and passing sutures through the guide slot and through the leaflet tabs. The leaflet subassembly is mated to a wireform with the tabs extending through commissure posts of the wireform. A support stent having an upper surface matching the lower surface of the wireform sandwiches the edges of the leaflet subassembly therebetween. Separated tabs on the leaflet subassembly are passed through the wireform commissures and attached to adjacent stent commissures so as to induce clamping of the leaflet tabs between the stent commissures and wireform commissures upon a radially inward force being applied to the leaflets.
Inventors
- 👤 Van Huynh
- 👤 Than Nguyen
- 👤 Hung Lam
- 👤 Xiaoming Guo
- 👤 Ralph Kafesjian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:09
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/24; A61F2/2409; A61F2/2412; A61F2/2415; A61F2220/00; A61F2220/0025; A61F2220/0075; Y; Y10; Y10S; Y10S623/00; Y10S623/90; Y10S623/909; Y10S623/91
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
37 words
1 . A prosthetic heart valve suture ring comprising a suturable annulus having a compliant internal member and a cloth covering, and three evenly spaced upwardly opening depressions formed on an internal circumference of the suturable annulus.
Claim 2
Dependent Claim
37 words
1 . A prosthetic heart valve suture ring comprising a suturable annulus having a compliant internal member and a cloth covering, and three evenly spaced upwardly opening depressions formed on an internal circumference of the suturable annulus.
Claim 3
Dependent Claim
36 words
2 . The suture ring of claim 1 , wherein the compliant internal member has an upwardly facing outer ledge and three inner lips projecting up from the ledge in between which the depressions are formed.
Claim 4
Dependent Claim
26 words
3 . The suture ring of claim 2 , further comprising a ring washer sized to rest on the ledge and closely surround the inner lips.
Claim 5
Dependent Claim
43 words
4 . The suture ring of claim 3 , wherein the cloth covering comprises a single piece of cloth surrounding the sponge member, and folded around the external surfaces of the ring washer and tucked between the ring washer and the sponge member.
Claim 6
Dependent Claim
27 words
5 . The suture ring of claim 3 , wherein the cloth covering surrounds the sponge member and extends between the ring washer and the sponge member.
Claim 7
Dependent Claim
81 words
6 . The suture ring of claim 5 , wherein the inner diameter of the ring washer is greater than the outer diameter of the inner lip of the sponge member such that a radial space is formed between the ring washer and the inner lip, and further including stitching applied in the radial space between the inner lip and ring washer to attach the cloth covering that extends between the ring washer and the sponge member to the sponge member.
Claim 8
Dependent Claim
26 words
7 . The suture ring of claim 1 , wherein the compliant internal member comprises a sponge member and the ring washer is a non-woven polyester.
Claim 9
Dependent Claim
28 words
8 . The suture ring of claim 1 , wherein the cloth covering is secured to the compliant internal member with stitching along the contours of the depressions.
Claim 10
Dependent Claim
50 words
9 . A prosthetic heart valve suture ring comprising an annular internal member defined by a contoured inner wall having a plurality of upwardly opening depressions formed thereon alternating with the same number of walled lips that extend upward from an upwardly facing ledge disposed outward from the walled lips.
Claim 11
Dependent Claim
50 words
9 . A prosthetic heart valve suture ring comprising an annular internal member defined by a contoured inner wall having a plurality of upwardly opening depressions formed thereon alternating with the same number of walled lips that extend upward from an upwardly facing ledge disposed outward from the walled lips.
Claim 12
Dependent Claim
26 words
10 . The suture ring of claim 9 , further comprising a ring washer sized to closely surround the walled lips and rest on the ledge.
Claim 13
Dependent Claim
44 words
11 . The suture ring of claim 10 , wherein the cloth covering comprises a single piece of cloth surrounding the annular internal member, folded around the external surfaces of the ring washer and tucked between the ring washer and the annular internal member.
Claim 14
Dependent Claim
29 words
12 . The suture ring of claim 10 , wherein the cloth covering surrounds the annular internal member and extends between the ring washer and the annular internal member.
Claim 15
Dependent Claim
27 words
13 . The suture ring of claim 9 , wherein the annular internal member comprises a molded sponge member and the ring washer is a non-woven polyester.
Claim 16
Dependent Claim
28 words
14 . The suture ring of claim 9 , wherein the cloth covering is secured to the compliant internal member with stitching along the contours of the depressions.
Claim 17
Dependent Claim
52 words
15 . A prosthetic heart valve suture ring comprising an annular internal member defined by a contoured inner wall having a plurality of walled lips that extend upward from an upwardly facing ledge disposed outward therefrom, and a ring washer sized to closely surround the walled lips and rest on the ledge.
Claim 18
Dependent Claim
52 words
15 . A prosthetic heart valve suture ring comprising an annular internal member defined by a contoured inner wall having a plurality of walled lips that extend upward from an upwardly facing ledge disposed outward therefrom, and a ring washer sized to closely surround the walled lips and rest on the ledge.
Claim 19
Dependent Claim
40 words
16 . The suture ring of claim 15 , further including a cloth covering surrounding the annular internal member, and folded around the external surfaces of the ring washer and tucked between the ring washer and the annular internal member.
Claim 20
Dependent Claim
84 words
17 . The suture ring of claim 16 , wherein the inner diameter of the ring washer is greater than the outer diameter of the walled lips of the annular internal member such that a radial space is formed between the ring washer and the walled lips, and further including stitching applied in the radial space between the walled lips and ring washer to attach the cloth covering that extends between the ring washer and the annular internal member to the annular internal member.
Claim 21
Dependent Claim
27 words
18 . The suture ring of claim 15 , wherein the annular internal member comprises a molded sponge member and the ring washer is a non-woven polyester.
Claim 22
Dependent Claim
33 words
19 . The suture ring of claim 15 , wherein there are three of the walled lips and the annular internal member further includes three upwardly opening depressions formed between the walled lips.
Claim 23
Dependent Claim
28 words
20 . The suture ring of claim 19 , wherein the cloth covering is secured to the annular internal member with stitching along the contours of the depressions.
References Cited (Backward Citations)
US3320972A
Cited
US3755823A
Cited
US4078466A
Cited
US4035849A
Cited
US4079468A
Cited
US4106129A
Cited
US4084268A
Cited
US4218782A
Cited
US4172295A
Cited
US4343126A
Cited
US4259753A
Cited
US4343048A
Cited
US4441216A
Cited
US4388735A
Cited
US4470157A
Cited
US4364126A
Cited
US4501030A
Cited
US4606394A
Cited
US4451936A
Cited
US4605407A
Cited
US4626255A
Cited
US4629459A
Cited
US4731074A
Cited
US4778461A
Cited
US4636483A
Cited
US4725274A
Cited
US4851000A
Cited
US5824069A
Cited
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.