US5201880A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mitral and tricuspid annuloplasty rings
Assignee: Medtronic Inc
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Filing: 1992-01-27
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Granted: 1993-04-13
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Expires: 2012-01-27
Abstract
Abstract Adjustable, flexible mitral and tricuspid annuloplasty rings having internal drawstrings that emerge from the rings on the annular faces so that the drawstring knots are out of the bloodstream, the drawstrings being contained in clearly marked channels, the mitral ring having a curved semi-flexible stiffener member in the anterior segment to maintain intertrigonal distance during implantation, the plane of the anterior segment lying at an angle of about 30 DEG -75 DEG to the plane of the posterior segment, arcing up across the anterior leaflet to prevent outflow tract obstruction.
Inventors
- 👤 John T. M. Wright
- 👤 Donald P. Elliott
- 👤 Francis C. Wells
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:58
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/24; A61F2/2442; A61F2/2445; A61F2/2448; A61F2250/00; A61F2250/0004; A61F2250/0058; A61F2250/0096; A61F2250/0097
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
133 words
An inplantable annuloplasty ring for use in repairing a human heart valve comprising a ring having a first face constructed and configured to lie, when in use, against an annulus defined by tissue surrounding a human heart valve, and a second face opposite the first face, a major portion of the ring comprising flexible biocompatible contractible fabric, first and second pairs of drawstrings extending through said flexible, biocompatible, contractible fabric, said first and second pair of drawstrings compsising filiform, biocompatible strings, the first pair of drawstring being constructed and positioned to contruct one half of said major portion and the second pair of drawstrings being constructed and adapted to contract the other half of said major portion, whereby drawing either or both of said pairs of drawstrings will cause the ring to contract.
Claim 2
Dependent Claim
133 words
An inplantable annuloplasty ring for use in repairing a human heart valve comprising a ring having a first face constructed and configured to lie, when in use, against an annulus defined by tissue surrounding a human heart valve, and a second face opposite the first face, a major portion of the ring comprising flexible biocompatible contractible fabric, first and second pairs of drawstrings extending through said flexible, biocompatible, contractible fabric, said first and second pair of drawstrings compsising filiform, biocompatible strings, the first pair of drawstring being constructed and positioned to contruct one half of said major portion and the second pair of drawstrings being constructed and adapted to contract the other half of said major portion, whereby drawing either or both of said pairs of drawstrings will cause the ring to contract.
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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) | 1996-04-12 | 1996-10-12 | 1997-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-04-12 | 2000-10-12 | 2001-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-04-12 | 2004-10-12 | 2005-04-13 | $7700.00 | Window Closed / Lapsed |