US6409759B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Harvested tissue heart valve with sewing rim
Assignee: St Jude Medical LLC
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Filing: 1999-12-30
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Granted: 2002-06-25
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Expires: 2019-12-30
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 10:45
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
42 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; and a sewing rim having an extension of material extending outwardly from the surface of the annulus.
Claim 2
Dependent Claim
42 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; and a sewing rim having an extension of material extending outwardly from the surface of the annulus.
Claim 3
Dependent Claim
21 words
The heart valve prosthesis of claim 1 wherein the harvested tissue heart valve comprises a harvested xenograft mitral he rat valve.
Claim 4
Dependent Claim
32 words
The heart valve prosthesis of claim 2 wherein the harvested xenograft mitral heart valve is harvested from a mammal with a size and anatomy similar to a human's heart size and anatomy.
Claim 5
Dependent Claim
34 words
The heart valve prosthesis of claim 2 wherein the harvested xenograft mitral heart valve has intact chordal extending from the leaflets and a section of papillary muscle attached at the end of the chordae.
Claim 6
Dependent Claim
21 words
The heart valve prosthesis of claim 4 wherein the papillary muscle attached to the chordae is reinforced with a reinforcing patch.
Claim 7
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 8
Dependent Claim
14 words
The heart valve prosthesis of claim 6 wherein the collar comprises xenograft pericardial tissue.
Claim 9
Dependent Claim
26 words
The heart valve prosthesis of claim 7 wherein the collar is sutured to the inner surface of the annulus and the outer surface of the annulus.
Claim 10
Dependent Claim
22 words
The heart valve prosthesis of claim 6 wherein the collar and the sewing rim are formed from an integral section or material.
Claim 11
Dependent Claim
21 words
The heart valve prosthesis of claim 1 further comprising a belt around the annulus to provide further support for the annulus.
Claim 12
Dependent Claim
23 words
The heart valve prosthesis of claim 10 wherein the belt has a thickness along the annulus surface of at least about 1.2 mm.
Claim 13
Dependent Claim
21 words
The heart valve prosthesis of claim 10 wherein the belt comprises a portion of pericardial tissue folded over a ring structure.
Claim 14
Dependent Claim
14 words
The heart valve prosthesis of claim 10 wherein the belt comprises rolled up tissue.
Claim 15
Dependent Claim
27 words
The heart valve prosthesis of claim 13 further comprising a collar, wherein the collar, sewing rim and belt are formed from a single section of integral material.
Claim 16
Dependent Claim
14 words
The heart valve prosthesis of claim 14 wherein the integral material comprises pericardial tissue.
Claim 17
Dependent Claim
14 words
The heart valve prosthesis of claim 1 wherein the sewing rim comprises visual markers.
Claim 18
Dependent Claim
14 words
The heart valve prosthesis of claim 1 wherein the sewing rim comprises synthetic material.
Claim 19
Dependent Claim
19 words
The heart valve prosthesis of claim 1 wherein the annulus comprises pledgeted suture reducing the circumference of the annulus.
Claim 20
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 21
Dependent Claim
26 words
The heart valve prosthesis of claim 1 wherein the sewing rim extends from about 2.0 mm to about 4 mm from the surface of the annulus.
Claim 22
Dependent Claim
26 words
The heart valve prosthesis of claim 1 wherein the sewing rim extends from about 2 mm to about 3.5 mm from the surface of the annulus.
Claim 23
Dependent Claim
17 words
The heart valve prosthesis of claim 1 wherein the harvested tissue heart valve comprises unfixed homograft tissues.
Claim 24
Independent Claim
55 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 method comprising attaching a sewing rim having an extension of material extending outwardly from the surface of the annulus of the harvested tissue heat valve.
Claim 25
Independent Claim
55 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 method comprising attaching a sewing rim having an extension of material extending outwardly from the surface of the annulus of the harvested tissue heat valve.
Claim 26
Dependent Claim
24 words
The method of claim 23 wherein the sewing rim extends from about 2 mm to about 4 mm from the surface of the annulus.
Claim 27
Dependent Claim
32 words
The method of claim 23 wherein the sewing rim is formed from a portion of folded pericardial tissue, the pericardial tissue extending to a collar that envelopes the end of the annulus.
Claim 28
Dependent Claim
36 words
The method of claim 25 wherein the pericardial tissue extends to a belt formed by rolling tissue at the end of the pericardial tissue opposite the collar and suturing the rolled tissue to secure the belt.
Claim 29
Dependent Claim
47 words
The method of claim 25 wherein the collar is formed by folding pericardial tissue over the end of the annulus and suturing the collar material to the inner surface of the annulus and to the outer surface of the annulus to envelope the end of the annulus.
Claim 30
Dependent Claim
27 words
The method of claim 23 wherein the circumference of the sewing rim is selected prior to the attachment of the sewing rim to the harvested heart valve.
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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) | 2005-06-24 | 2005-12-24 | 2006-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2009-06-24 | 2009-12-24 | 2010-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2013-06-24 | 2013-12-24 | 2014-06-25 | $7700.00 | Window Closed / Lapsed |