US6176877B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Two piece prosthetic heart valve
Assignee: St Jude Medical LLC
•
Filing: 1998-04-20
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Granted: 2001-01-23
•
Expires: 2018-04-20
Abstract
Abstract A prosthetic heart valve for implantation in a heart includes an outer orifice ring for coupling to a tissue annulus of a heart. An inner orifice ring includes at least one leaflet occluder carried in a lumen of the inner orifice ring which is movable between an open position, which allows blood flow through the lumen, and a closed position which blocks blood flow through the lumen. The inner orifice ring is adapted to be coupled to the outer orifice ring after the outer orifice ring has been attached to the tissue annulus.
Inventors
- 👤 Eric S. Buchanan
- 👤 Bob Allan
- 👤 Michael J. Girard
- 👤 William R. Holmberg
- 👤 Kimberly A. Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:33
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/24; A61F2/2427; A61B; A61B17/00; A61B17/064; A61B17/068; A61B17/072; A61B17/11; A61B17/115; A61B17/1155; A61B2017/0649; A61B2017/07214; A61F2/2409; A61F2250/00; A61F2250/0058; A61F2250/006
Claims Analysis
Total Claims: 33
Claim 1
Independent Claim
81 words
A prosthetic heart valve for implantation in a heart, comprising: an outer orifice ring; an attachment mechanism comprising at least one helical screw on the outer orifice ring adapted to couple the outer orifice ring to a tissue annulus of the heart; an inner orifice ring having an occluding mechanism carried therein; and a ring coupling mechanism adapted to couple the outer orifice ring to the inner orifice ring after the outer orifice ring has been coupled to the tissue annulus.
Claim 2
Dependent Claim
81 words
A prosthetic heart valve for implantation in a heart, comprising: an outer orifice ring; an attachment mechanism comprising at least one helical screw on the outer orifice ring adapted to couple the outer orifice ring to a tissue annulus of the heart; an inner orifice ring having an occluding mechanism carried therein; and a ring coupling mechanism adapted to couple the outer orifice ring to the inner orifice ring after the outer orifice ring has been coupled to the tissue annulus.
Claim 3
Dependent Claim
24 words
The prosthetic heart valve of claim 1 including a plurality of helical screws substantially evenly placed around a circumference of the outer orifice ring.
Claim 4
Dependent Claim
56 words
The prosthetic heart valve of claim 1 wherein the ring coupling mechanism comprises a locking ridge formed on a circumference of one of the rings and a locking recess formed on a circumference of the other of the rings, wherein the locking ridge snap fits in the locking recess to thereby secure the two rings together.
Claim 5
Dependent Claim
35 words
The prosthetic heart valve of claim 3 wherein the locking ridge extends around an inner circumference of the outer orifice ring and the locking recess extends around an outer circumference of the inner orifice ring.
Claim 6
Dependent Claim
47 words
The prosthetic heart valve of claim 1 wherein the occluding mechanism comprises a pair of moveable leaflets pivotably carried in a lumen through the inner orifice ring, the leaflets being moveable between an open position allowing blood flow therethrough and a closed position blocking blood flow therethrough.
Claim 7
Dependent Claim
18 words
The prosthetic heart valve of claim 1 wherein the at least one helical screw comprises a cobalt-nickel-chromium-molybdenum alloy.
Claim 8
Dependent Claim
41 words
The prosthetic heart valve of claim 1 wherein the inner orifice ring secures the attachment mechanism and shields the outer orifice ring and the attachment mechanism from blood flow when the inner orifice ring is coupled to the outer orifice ring.
Claim 9
Dependent Claim
33 words
The prosthetic heart valve of claim 1 wherein the ring coupling mechanism allows limited rotational movement about an axis of the inner orifice ring relative to an axis of the outer orifice ring.
Claim 10
Dependent Claim
26 words
The prosthetic heart valve of claim 1 including a seal between the outer orifice ring and the inner orifice ring to provide a fluidic seal therebetween.
Claim 11
Dependent Claim
125 words
A prosthetic heart valve for implantation in a heart, comprising: an outer orifice ring including a plurality of preformed holes formed therein and arranged around the ring to define suture locations, the holes extending in a direction which is generally perpendicular to an axis of the outer orifice ring; an attachment mechanism comprising a suture on the outer orifice ring, the suture shaped to extend through the holes in the outer orifice ring and couple the outer orifice ring to a tissue annulus of the heart; an inner orifice ring having an occluding mechanism carried therein; and a ring coupling mechanism configured to couple the outer orifice ring to the inner orifice ring after the outer orifice ring has been coupled to the tissue annulus.
Claim 12
Dependent Claim
125 words
A prosthetic heart valve for implantation in a heart, comprising: an outer orifice ring including a plurality of preformed holes formed therein and arranged around the ring to define suture locations, the holes extending in a direction which is generally perpendicular to an axis of the outer orifice ring; an attachment mechanism comprising a suture on the outer orifice ring, the suture shaped to extend through the holes in the outer orifice ring and couple the outer orifice ring to a tissue annulus of the heart; an inner orifice ring having an occluding mechanism carried therein; and a ring coupling mechanism configured to couple the outer orifice ring to the inner orifice ring after the outer orifice ring has been coupled to the tissue annulus.
Claim 13
Dependent Claim
56 words
The prosthetic heart valve of claim 10 wherein the ring coupling mechanism comprises a locking ridge formed on a circumference of one of the rings and a locking recess formed on a circumference of the other of the rings, wherein the locking ridge snap fits in the locking recess to thereby secure the two rings together.
Claim 14
Dependent Claim
35 words
The prosthetic heart valve of claim 11 wherein the locking ridge extends around an inner circumference of the outer orifice ring and the locking recess extends around an outer circumference of the inner orifice ring.
Claim 15
Dependent Claim
47 words
The prosthetic heart valve of claim 10 wherein the occluding mechanism comprises a pair of moveable leaflets pivotably carried in a lumen through the inner orifice ring, the leaflets being moveable between an open position allowing blood flow therethrough and a closed position blocking blood flow therethrough.
Claim 16
Dependent Claim
34 words
The prosthetic heart valve of claim 10 wherein the inner orifice ring shields the outer orifice ring attachment mechanism from blood flow when the inner orifice ring is coupled to the outer orifice ring.
Claim 17
Dependent Claim
33 words
The prosthetic heart valve of claim 10 wherein the ring coupling mechanism allows limited rotational movement about an axis of the inner orifice ring relative to an axis of the outer orifice ring.
Claim 18
Dependent Claim
27 words
The prosthetic heart valve of claim 10 wherein the outer orifice ring includes a recess formed on an inner annulus, the recess adapted to cover the suture.
Claim 19
Dependent Claim
33 words
The prosthetic heart valve of claim 10 including a suture cuff carried on an outer annulus of the outer orifice ring and wherein the suture is adapted to extend through the suture cuff.
Claim 20
Dependent Claim
26 words
The prosthetic heart valve of claim 10 including a seal between the outer orifice ring and the inner orifice ring to provide a fluidic seal therebetween.
Claim 21
Dependent Claim
149 words
A prosthetic heart valve for implantation in a heart, comprising: an outer orifice ring including a plurality of preformed holes arranged around the ring to define suture or screw locations; an attachment mechanism on the outer orifice ring adapted to couple the outer orifice ring to a tissue annulus of the heart; an inner orifice ring having an occluding mechanism carried therein; a ring coupling mechanism configured to couple the outer orifice ring to the inner orifice ring after the outer orifice ring has been coupled to the tissue annulus; and wherein the ring coupling mechanism comprises a locking ridge formed on a circumference of one of the rings and a locking recess formed on a circumference of the other of the rings, wherein the locking ridge snap fits in the locking recess to thereby secure the two rings together, the locking recess configured to cover the attachment mechanism.
Claim 22
Dependent Claim
149 words
A prosthetic heart valve for implantation in a heart, comprising: an outer orifice ring including a plurality of preformed holes arranged around the ring to define suture or screw locations; an attachment mechanism on the outer orifice ring adapted to couple the outer orifice ring to a tissue annulus of the heart; an inner orifice ring having an occluding mechanism carried therein; a ring coupling mechanism configured to couple the outer orifice ring to the inner orifice ring after the outer orifice ring has been coupled to the tissue annulus; and wherein the ring coupling mechanism comprises a locking ridge formed on a circumference of one of the rings and a locking recess formed on a circumference of the other of the rings, wherein the locking ridge snap fits in the locking recess to thereby secure the two rings together, the locking recess configured to cover the attachment mechanism.
Claim 23
Dependent Claim
17 words
The prosthetic heart valve of claim 19 wherein the attachment mechanism comprises at least one helical screw.
Claim 24
Dependent Claim
24 words
The prosthetic heart valve of claim 20 including a plurality of helical screws substantially evenly placed around a circumference of the outer orifice ring.
Claim 25
Dependent Claim
16 words
The prosthetic heart valve of claim 20 wherein the at least one helical screw comprises platinum-iridium.
Claim 26
Dependent Claim
35 words
The prosthetic heart valve of claim 19 wherein the locking ridge extends around an inner circumference of the outer orifice ring and the locking recess extends around an outer circumference of the inner orifice ring.
Claim 27
Dependent Claim
47 words
The prosthetic heart valve of claim 19 wherein the occluding mechanism comprises a pair of moveable leaflets pivotably carried in a lumen through the inner orifice ring, the leaflets being moveable between an open position allowing blood flow therethrough and a closed position blocking blood flow therethrough.
Claim 28
Dependent Claim
39 words
The prosthetic heart valve of claim 19 wherein the inner orifice ring secures the attachment mechanism and shields the outer orifice ring attachment mechanism from blood flow when the inner orifice ring is coupled to the outer orifice ring.
Claim 29
Dependent Claim
33 words
The prosthetic heart valve of claim 19 wherein the ring coupling mechanism allows limited rotational movement about an axis of the inner orifice ring relative to an axis of the outer orifice ring.
Claim 30
Dependent Claim
14 words
The prosthetic heart valve of claim 19 wherein the attachment mechanism comprises a suture.
Claim 31
Dependent Claim
33 words
The prosthetic heart valve of claim 27 including a suture cuff carried on an outer annulus of the outer orifice ring and wherein the suture is adapted to extend through the suture cuff.
Claim 32
Dependent Claim
27 words
The prosthetic heart valve of claim 27 wherein the outer orifice ring includes a recess formed on an inner annulus, the recess adapted to receive the suture.
Claim 33
Dependent Claim
25 words
The prosthetic heart valve of claim 27 including a seal between the outer orifice and the inner orifice ring to provide a fluidic seal therebetween.
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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) | 2004-01-23 | 2004-07-24 | 2005-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2008-01-23 | 2008-07-24 | 2009-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2012-01-23 | 2012-07-24 | 2013-01-23 | $7700.00 | Window Closed / Lapsed |