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US5332402A
Expired / Lapsed
US
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Percutaneously-inserted cardiac valve
Assignee: Individual
•
Filing: 1992-05-12
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Granted: 1994-07-26
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Expires: 2012-05-12
Abstract
Abstract A cardiac valve implanted within the heart is given where a expansible valve maintained in a collapsed form by cold temperature is percutaneously inserted along a releasable guide wire in a cooled sheath and when positioned is expanded by withdrawing the cold temperature.
Inventors
- 👤 George P. Teitelbaum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:06
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/24; A61F2/2421; A61F2/2424; A61F2/2409; A61F2250/00; A61F2250/0058; A61F2250/006; Y; Y10; Y10S; Y10S623/00; Y10S623/90; Y10S623/902; Y10S623/904
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
148 words
A method of implanting an expansible cardiac valve within a heart wherein the expansible cardiac valve is comprised of a recovery metal having memory and which is capable of expanding to a desired shape comprising: releasably coupling a cardiac valve in a compressed form to a positioning device while maintaining a cool temperature sufficient to maintain the cardiac valve in said compressed form and which is capable of passing through heart within which the cardiac valve is to be implanted; manipulating the positioning device within the heart so as to position the cardiac valve at a desired location with the heart; ceasing maintaining cool temperature to effect expansion of the cardiac valve to a desired shape wherein the valve engages the walls of the heart; disengaging the positioning device from the expanded cardiac valve; and removing the positioning device to leave the cardiac valve implanted within the heart.
Claim 2
Independent Claim
148 words
A method of implanting an expansible cardiac valve within a heart wherein the expansible cardiac valve is comprised of a recovery metal having memory and which is capable of expanding to a desired shape comprising: releasably coupling a cardiac valve in a compressed form to a positioning device while maintaining a cool temperature sufficient to maintain the cardiac valve in said compressed form and which is capable of passing through heart within which the cardiac valve is to be implanted; manipulating the positioning device within the heart so as to position the cardiac valve at a desired location with the heart; ceasing maintaining cool temperature to effect expansion of the cardiac valve to a desired shape wherein the valve engages the walls of the heart; disengaging the positioning device from the expanded cardiac valve; and removing the positioning device to leave the cardiac valve implanted within the heart.
Claim 3
Dependent Claim
15 words
The method of claim 1 wherein the cardiac valve comprises a stent and sliding obturator.
Claim 4
Dependent Claim
14 words
The method of claim 1 wherein the cardiac valve comprises stent and caged ball.
Claim 5
Dependent Claim
14 words
The method of claim 1 wherein the cardiac valve expands at about body temperature.
Claim 6
Dependent Claim
13 words
The method of claim 1 wherein the cardiac valve is a mitral valve.
Claim 7
Dependent Claim
29 words
A cardiac heart valve comprising a stent and sliding obturator formed of a shaped memory alloy which has a transition temperature of from about 90° to about 96° F.
Claim 8
Dependent Claim
29 words
A cardiac heart valve comprising a stent and sliding obturator formed of a shaped memory alloy which has a transition temperature of from about 90° to about 96° F.
Claim 9
Dependent Claim
15 words
The cardiac heart valve of claim 6 wherein the transition temperature is about 95° F.
Claim 10
Dependent Claim
31 words
A mitral cardiac heart valve comprising a stent and ball and cage formed of a shaped memory alloy which has a transition temperature of from about 90° to about 96° F.
Claim 11
Dependent Claim
31 words
A mitral cardiac heart valve comprising a stent and ball and cage formed of a shaped memory alloy which has a transition temperature of from about 90° to about 96° F.
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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) | 1997-07-25 | 1998-01-24 | 1998-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-07-25 | 2002-01-24 | 2002-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-07-25 | 2006-01-24 | 2006-07-26 | $7700.00 | Window Closed / Lapsed |