Patent US6682558B2 successfully refreshed from Google Patents.
US6682558B2
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US
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Delivery system for a stentless valve bioprosthesis
Assignee: Medtronic 3F Therapeutics Inc
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Filing: 2001-05-10
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Granted: 2004-01-27
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Expires: 2021-05-10
Abstract
Abstract The current invention discloses a catheter and a method for delivering a stentless bioprosthesis in a body channel, the method comprising percutaneously introducing a catheter into the body channel, wherein the catheter contains said stentless bioprosthesis at a retracted state; and disengaging said stentless bioprosthesis out of a distal opening of the catheter by a pulling mechanism associated with the catheter structure.
Inventors
- 👤 Hosheng Tu
- 👤 Rodolfo C. Quijano
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:44
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/24; A61F2/2427; A61F2/2436; A61F2/2412; A61F2/2475
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
83 words
A method for delivering a hollow tubular collapsible prosthesis to an anatomical site in a body channel, the method comprising the steps of: introducing a catheter into the body channel, wherein the catheter contains said prosthesis at a retracted state; advancing the catheter to the anatomical site; maintaining a distal portion of said prosthesis in place relative to the anatomical site; disengaging said prosthesis from said catheter by pulling a distal end of said prosthesis; and withdrawing said catheter from the body channel.
Claim 2
Independent Claim
83 words
A method for delivering a hollow tubular collapsible prosthesis to an anatomical site in a body channel, the method comprising the steps of: introducing a catheter into the body channel, wherein the catheter contains said prosthesis at a retracted state; advancing the catheter to the anatomical site; maintaining a distal portion of said prosthesis in place relative to the anatomical site; disengaging said prosthesis from said catheter by pulling a distal end of said prosthesis; and withdrawing said catheter from the body channel.
Claim 3
Dependent Claim
15 words
The method according to claim 1 , wherein the prosthesis is a stentless cardiac valve.
Claim 4
Dependent Claim
24 words
The method according to claim 1 , wherein the method further comprises a step of coupling said prosthesis into tissue of the body channel.
Claim 5
Dependent Claim
68 words
The method according to claim 1 , wherein said distal portion of the prosthesis is maintained in place at a position relative to the anatomical site by an elongated delivery member located within a lumen of the catheter, said elongated delivery member having an engaging element at a distal end of said elongated delivery member, wherein the engaging element engages and disengages the distal portion of said prosthesis.
Claim 6
Independent Claim
57 words
A method for delivering a hollow tubular stentless longitudinally collapsible bioprosthesis in a body channel, the method comprising percutaneously introducing a catheter into the body channel, wherein the catheter contains said bioprosthesis at a retracted state; and disengaging said bioprosthesis out of a distal opening of the catheter by pulling at a distal end of said bioprosthesis.
Claim 7
Independent Claim
57 words
A method for delivering a hollow tubular stentless longitudinally collapsible bioprosthesis in a body channel, the method comprising percutaneously introducing a catheter into the body channel, wherein the catheter contains said bioprosthesis at a retracted state; and disengaging said bioprosthesis out of a distal opening of the catheter by pulling at a distal end of said bioprosthesis.
Claim 8
Dependent Claim
24 words
The method according to claim 5 , wherein said pulling mechanism further comprises an engaging element coupling to a distal portion of the bioprosthesis.
Claim 9
Dependent Claim
19 words
The method according to claim 6 , wherein the method further comprises separating the bioprosthesis from said engaging element.
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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) | 2007-01-26 | 2007-07-28 | 2008-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2011-01-26 | 2011-07-28 | 2012-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2015-01-26 | 2015-07-28 | 2016-01-27 | $7700.00 | Window Closed / Lapsed |