US5895419A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coated prosthetic cardiac device
Assignee: St Jude Medical LLC
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Filing: 1997-01-31
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Granted: 1999-04-20
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Expires: 2017-01-31
Abstract
Abstract The present invention includes a metallic coating on portions of the prosthesis to enhance the overall acceptability of the implantable device or fabric/sutures used to implant the prosthesis. The preferred metal is silver, which is applied to surfaces which are exposed to the heart tissue. The silver-treated portions of these devices inhibit or greatly reduce colonization of endocarditis-causing bacteria without impacting the overall biocompatibility of the device.
Inventors
- 👤 Katherine S. Tweden
- 👤 William R. Holmberg
- 👤 Darrin J. Bergman
- 👤 Terry L. Shepherd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 16:28
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/24; A61F2/2478; A61F2/2481; A61F2/0077; A61F2/2403; A61F2/04; A61F2/06; A61F2/07; A61F2310/00; A61F2310/00389; A61F2310/00395; A61F2310/00419; A61F2310/0052; Y; Y10; Y10S; Y10S623/00; Y10S623/90
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
75 words
An implantable heart prosthesis, said prosthesis comprising: an orifice ring having an outer periphery and an inner periphery, said ring defining an annulus; said annulus defining a passage for the flow of blood; a fabric member coupled to at least said outer periphery of said orifice ring and adapted for coupling to a patient's heart tissue for an extended duration; said fabric member carrying silver to thereby substantially inhibit microbial growth on the fabric member.
Claim 2
Dependent Claim
75 words
An implantable heart prosthesis, said prosthesis comprising: an orifice ring having an outer periphery and an inner periphery, said ring defining an annulus; said annulus defining a passage for the flow of blood; a fabric member coupled to at least said outer periphery of said orifice ring and adapted for coupling to a patient's heart tissue for an extended duration; said fabric member carrying silver to thereby substantially inhibit microbial growth on the fabric member.
Claim 3
Dependent Claim
31 words
The prosthesis of claim 1 wherein said fabric is coated with silver in an ion beam-assisted, high-vacuum environment, such that said silver atoms are inserted into the surface of said fabric.
Claim 4
Dependent Claim
29 words
The device of claim 1 wherein said fabric is coated with silver in a high-vacuum environment, such that said silver atoms are coated on the surface of said fabric.
Claim 5
Dependent Claim
16 words
The prosthesis of claim 1 wherein said fabric member comprises a plurality of fibers carrying silver.
Claim 6
Dependent Claim
13 words
The prosthesis of claim 4 wherein said fabric is woven from polyester fibers.
Claim 7
Dependent Claim
38 words
The prosthesis of claim 1 further including: a first occluder; a second occluder; said first and second occluders mounted for motion within said ring; a sewing cuff coupled to said ring; and said sewing cuff carrying silver thereon.
Claim 8
Dependent Claim
12 words
The prosthesis of claim 1 wherein the device comprises a heart valve.
Claim 9
Dependent Claim
22 words
The device of claim 7 further including: a graft coupled to said ring; and said graft fabricated from said silver coated fabric.
Claim 10
Dependent Claim
9 words
The prosthesis of claim 1 further comprising a stent.
Claim 11
Dependent Claim
12 words
The device of claim 1 wherein the device comprises an annuloplasty ring.
Claim 12
Dependent Claim
12 words
The prosthesis of claim 1 wherein the device comprises a bioprosthetic valve.
Claim 13
Dependent Claim
12 words
The device of claim 1 wherein the device comprises a valved graft.
Claim 14
Dependent Claim
13 words
The prosthesis of claim 1 wherein the fabric member comprises a sewing cuff.
Claim 15
Dependent Claim
30 words
The prosthesis of claim 1 including a pledget carrying silver adapted to cooperate with the fabric carrying member for attaching the implantable heart prosthesis to natural tissue of a patient.
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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) | 2002-04-19 | 2002-10-19 | 2003-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-04-19 | 2006-10-19 | 2007-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-04-19 | 2010-10-19 | 2011-04-20 | $7700.00 | Window Closed / Lapsed |