Patent US7316712B2 successfully refreshed from Google Patents.
US7316712B2
Expired / Lapsed
US
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Tissue heart valve with annulus support structure
Assignee: St Jude Medical LLC
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Filing: 2002-06-24
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Granted: 2008-01-08
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Expires: 2022-06-24
Abstract
Abstract A heart valve prosthesis can be formed with a harvested tissue heart valve and a sewing rim that extends outwardly from the annulus of the harvested heart valve for easier attachment of the prosthesis. The heart valve prosthesis can further include a belt that extends along the annulus to provide further support to the valve annulus. A single piece of pericardial tissue can be used to form the sewing rim, belt and a collar that envelopes the edge of the annulus. The harvested heart valve prosthesis can have the diameter of its annulus adjusted using pledgeted suture prior to the application of additional support structures such as the belt, sewing rim and collar.
Inventors
- 👤 Mario Osvaldo Vrandecic Peredo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:00
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/24; A61F2/2442; A61F2/2454; A61F2/2457; A61F2/2412; A61F2/2415; A61F2250/00; A61F2250/0058; A61F2250/0096; A61F2250/0097; Y; Y10; Y10S; Y10S623/00; Y10S623/90
Claims Analysis
Total Claims: 30
Claim 1
Independent Claim
82 words
A heart valve prosthesis comprising: a harvested tissue heart valve with integral leaflets, the heart valve having an annulus at one end of the valve, the annulus having a surface; an exposed belt secured around at least a substantial portion of an outer circumference of the annulus surface of the harvested tissue heart valve; and a sewing rim adjacent the belt, extending radially outwardly from the annulus, axially positioned between the belt and the annulus and along a side of the annulus.
Claim 2
Dependent Claim
82 words
A heart valve prosthesis comprising: a harvested tissue heart valve with integral leaflets, the heart valve having an annulus at one end of the valve, the annulus having a surface; an exposed belt secured around at least a substantial portion of an outer circumference of the annulus surface of the harvested tissue heart valve; and a sewing rim adjacent the belt, extending radially outwardly from the annulus, axially positioned between the belt and the annulus and along a side of the annulus.
Claim 3
Dependent Claim
25 words
The heart valve prosthesis of claim 1 wherein the belt has a thickness along the annulus surface from about 2 mm to about 3 mm.
Claim 4
Dependent Claim
23 words
The heart valve prosthesis of claim 1 wherein the belt has a thickness along the annulus surface of at least about 1.5 mm.
Claim 5
Dependent Claim
23 words
The heart valve prosthesis of claim 1 wherein the belt has a thickness along the annulus surface of at least about 2 mm.
Claim 6
Dependent Claim
14 words
The heart valve prosthesis of claim 1 wherein the belt comprises rolled up tissue.
Claim 7
Dependent Claim
13 words
The heart valve prosthesis of claim 1 wherein the belt comprises pericardial tissue.
Claim 8
Dependent Claim
18 words
The heart valve prosthesis of claim 1 wherein the belt comprises pericardial tissue folded over a ring structure.
Claim 9
Dependent Claim
13 words
The heart valve prosthesis of claim 1 wherein the belt comprises synthetic material.
Claim 10
Dependent Claim
24 words
The heart valve prosthesis of claim 1 wherein the belt extends outwardly from the annulus surface from about 1.5 mm to about 4 mm.
Claim 11
Dependent Claim
24 words
The heart valve prosthesis of claim 1 wherein the belt extends outwardly from the annulus surface from about 2 mm to about 3 mm.
Claim 12
Dependent Claim
20 words
The heart valve prosthesis of claim 1 wherein the harvested tissue heart valve comprises a harvested xenograft mitral heart valve.
Claim 13
Dependent Claim
35 words
The heart valve prosthesis of claim 11 wherein the harvested xenograft mitral heart valve is harvested from a mammal with a heart valve having a size and anatomy similar to a human's size and anatomy.
Claim 14
Dependent Claim
34 words
The heart valve prosthesis of claim 11 wherein the harvested xenograft mitral heart valve has intact chordae extending from the leaflets and a section of papillary muscle attached at the end of the chordae.
Claim 15
Dependent Claim
21 words
The heart valve prosthesis of claim 13 wherein the papillary muscle attached to the chordae is reinforced with a reinforcing patch.
Claim 16
Dependent Claim
23 words
The heart valve prosthesis of claim 1 further comprising a collar enveloping the end of the annulus of the harvested tissue heart valve.
Claim 17
Dependent Claim
14 words
The heart valve prosthesis of claim 15 wherein the collar comprises xenograft pericardial tissue.
Claim 18
Dependent Claim
26 words
The heart valve prosthesis of claim 16 wherein the collar is sutured to an inner surface of the annulus and an outer surface of the annulus.
Claim 19
Dependent Claim
12 words
The heart valve prosthesis of claim 15 wherein the collar comprises tissue.
Claim 20
Dependent Claim
21 words
The heart valve prosthesis of claim 15 wherein the collar and belt are formed from a single section of integral material.
Claim 21
Dependent Claim
14 words
The heart valve prosthesis of claim 19 wherein the integral material comprises pericardial tissue.
Claim 22
Dependent Claim
19 words
The heart valve prosthesis of claim 1 wherein the annulus comprises pledgeted suture reducing the circumference of the annulus.
Claim 23
Dependent Claim
23 words
The heart valve prosthesis of claim 1 wherein the sewing rim projects at least about 2 mm from the surface of the annulus.
Claim 24
Dependent Claim
26 words
The heart valve prosthesis of claim 22 wherein the sewing rim extends from about 2 mm to about 4 mm from the surface of the annulus.
Claim 25
Dependent Claim
16 words
The heart valve prosthesis of claim 1 wherein the harvested tissue heart valve comprises homograft tissue.
Claim 26
Independent Claim
92 words
A method of producing a heart valve prosthesis comprising a harvested tissue heart valve with integral leaflets, the heart valve having an annulus at one end of the valve, the annulus having a surface, the method comprising: attaching an exposed belt around at least a substantial portion of an outer circumference of the annulus surface of the harvested tissue heart valve; and extending a sewing rim adjacent the belt radially outwardly from the annulus, axially positioning the sewing rim between the belt and the annulus and along a side of the annulus.
Claim 27
Independent Claim
92 words
A method of producing a heart valve prosthesis comprising a harvested tissue heart valve with integral leaflets, the heart valve having an annulus at one end of the valve, the annulus having a surface, the method comprising: attaching an exposed belt around at least a substantial portion of an outer circumference of the annulus surface of the harvested tissue heart valve; and extending a sewing rim adjacent the belt radially outwardly from the annulus, axially positioning the sewing rim between the belt and the annulus and along a side of the annulus.
Claim 28
Dependent Claim
21 words
The method of claim 25 wherein the belt has a thickness along the annulus surface of at least about 1.5 mm.
Claim 29
Dependent Claim
31 words
The method of claim 25 wherein the belt is formed from a rolled-up portion of pericardial tissue, the pericardial tissue extending to a collar that envelops the end of the annulus.
Claim 30
Dependent Claim
18 words
The method of claim 25 wherein the belt is formed by folding pericardial tissue over a ring structure.
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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) | 2011-01-07 | 2011-07-09 | 2012-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2015-01-07 | 2015-07-09 | 2016-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2019-01-07 | 2019-07-09 | 2020-01-08 | $7700.00 | Window Closed / Lapsed |