Patent US6478819B2 successfully refreshed from Google Patents.
US6478819B2
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US
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Prosthetic heart valves with flexible post geometry
Assignee: Corcym SRL
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Filing: 1999-05-27
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Granted: 2002-11-12
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Expires: 2019-05-27
Abstract
Abstract A stent includes an elongated stent member having a plurality of post members. Each post member includes a pair of opposite sides. A first end of each post member includes an arcuate apex interconnecting the opposite sides. A second end of each post member has an open end. The opposite sides are angled to converge toward each other at the second end. The second end of each post member is connected to an adjacent post member by a stent portion. Each opposite side and each stent portion converge at an angle of less than 90°. The opposite sides are angled to converge toward each other at the second end.
Inventors
- 👤 Riyad E. Moe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:36
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/24; A61F2/2412; A61F2/2418
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
181 words
A prosthetic heart valve comprising: 1) an annular valve body comprising a flexible material, said valve body having A) a circumference and a plurality of valve body posts spaced around said circumference, each of said valve body posts having first and second ends, each of said first ends comprising a body post apex, B) an attachment curve coupling each pair of adjacent body post apices, and C) a plurality of flexible leaflets, each leaflet being coupled to an attachment curve; and 2) a stent coupled to the valve body, said stent comprising a plurality of flexible stent post members, each of said stent post members being coupled to a valve body post and having first and second ends, a pair of opposite sides, and a uniform cross-section, A) each of said first ends comprising an arcuate stent post apex interconnecting the opposite sides, B) each of said second ends being open, C) each said pair of opposite sides being spaced apart by a first distance adjacent the apex and a second distance, less than the first distance, adjacent the second end.
Claim 2
Dependent Claim
181 words
A prosthetic heart valve comprising: 1) an annular valve body comprising a flexible material, said valve body having A) a circumference and a plurality of valve body posts spaced around said circumference, each of said valve body posts having first and second ends, each of said first ends comprising a body post apex, B) an attachment curve coupling each pair of adjacent body post apices, and C) a plurality of flexible leaflets, each leaflet being coupled to an attachment curve; and 2) a stent coupled to the valve body, said stent comprising a plurality of flexible stent post members, each of said stent post members being coupled to a valve body post and having first and second ends, a pair of opposite sides, and a uniform cross-section, A) each of said first ends comprising an arcuate stent post apex interconnecting the opposite sides, B) each of said second ends being open, C) each said pair of opposite sides being spaced apart by a first distance adjacent the apex and a second distance, less than the first distance, adjacent the second end.
Claim 3
Dependent Claim
23 words
The prosthetic heart valve of claim 1 wherein said stent further comprises at least one stent portion interconnecting two adjacent stent post members.
Claim 4
Dependent Claim
42 words
The prosthetic heart valve of claim 2 wherein said stent further comprises a plurality of stent portions and the second end of each stent post member is coupled to the second end of an adjacent stent post member by a stent portion.
Claim 5
Dependent Claim
36 words
The prosthetic heart valve of claim 3 wherein each side of a stent post member and each stent portion connected to said side of a stent post member converge at an angle of less than 90°.
Claim 6
Dependent Claim
15 words
The prosthetic heart valve of claim 1 wherein the stent has a circular cross section.
Claim 7
Dependent Claim
16 words
The prosthetic heart valve of claim 1 wherein the stent is embedded in the valve body.
Claim 8
Dependent Claim
20 words
The prosthetic heart valve of claim 1 wherein the stent is coupled to an outside surface of the valve body.
Claim 9
Dependent Claim
15 words
The prosthetic heart valve of claim 1 wherein the stent has a rectangular cross section.
Claim 10
Dependent Claim
14 words
The prosthetic heart valve of claim 1 wherein the flexible material is a polymer.
Claim 11
Dependent Claim
12 words
The prosthetic heart valve of claim 9 wherein the polymer comprises silicone.
Claim 12
Dependent Claim
12 words
The prosthetic heart valve of claim 9 wherein the polymer is polyurethane.
Claim 13
Dependent Claim
13 words
The prosthetic heart valve of claim 1 wherein the flexible material comprises tissue.
Claim 14
Dependent Claim
19 words
The prosthetic heart valve as defined in claim 1 further comprising a sewing ring coupled to said valve body.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2005-11-11 | 2006-05-13 | 2006-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2009-11-11 | 2010-05-13 | 2010-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2013-11-11 | 2014-05-13 | 2014-11-12 | $7700.00 | Window Closed / Lapsed |