Patent US7004176B2 successfully refreshed from Google Patents.
US7004176B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heart valve leaflet locator
Assignee: Edwards Lifesciences AG
•
Filing: 2003-10-17
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Granted: 2006-02-28
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Expires: 2023-10-17
Abstract
Abstract Disclosed are methods and devices for determining valve leaflet orientation. A catheter is provided with a conformable, radiopaque target. The target is deployed within a valve, such as the mitral valve. The conformable target conforms to the coaptation axis in response to closing of the valve leaflets. That coaptation axis may then be visualized, and utilized to determine information about valve operation, or to assist in placement of devices in the vicinity of the valve.
Inventors
- 👤 Jan Lau
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:08
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/24; A61F2/2442; A61F2/2451; A61B; A61B90/00; A61B90/39; A61F2/2472
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
66 words
A method of assessing the functionality of a heart valve, comprising the steps of: positioning a device within the valve, the device being conformable for conforming to the coaption axis of the valve and moveable in response to opening and closing of the valve; and observing the device when the valve is closed, to determine the spatial orientation of the coaptation axis for evaluating valve function.
Claim 2
Independent Claim
66 words
A method of assessing the functionality of a heart valve, comprising the steps of: positioning a device within the valve, the device being conformable for conforming to the coaption axis of the valve and moveable in response to opening and closing of the valve; and observing the device when the valve is closed, to determine the spatial orientation of the coaptation axis for evaluating valve function.
Claim 3
Dependent Claim
22 words
A method of assessing the functionality of a heart valve as in claim 1 , wherein the positioning step comprises transluminally positioning.
Claim 4
Dependent Claim
32 words
A method of assessing the functionality of a heart valve as in claim 2 , comprising the steps of transluminally advancing the device through the aortic valve and into the mitral valve.
Claim 5
Dependent Claim
36 words
A method of assessing the functionality of a heart valve as in claim 2 , comprising the steps of transluminally advancing the device into the right atrium and across the atrial septum into the mitral valve.
Claim 6
Dependent Claim
29 words
A method of assessing the functionality of a heart valve as in claim 1 , wherein the positioning step comprises positioning a plurality of radiopaque markers within the valve.
Claim 7
Independent Claim
84 words
A method of determining leaflet orientation of a mitral valve, comprising the steps of: advancing the distal end of a catheter through the left ventricle to a position adjacent the mitral valve; deploying a radiopaque target from the distal end of the catheter to a location within the mitral valve, the radiopaque target being sufficiently conformable to reconfigure in response to opening and closing of the mitral valve; and observing the alignment of the radiopaque target in response to closing of the mitral valve.
Claim 8
Independent Claim
84 words
A method of determining leaflet orientation of a mitral valve, comprising the steps of: advancing the distal end of a catheter through the left ventricle to a position adjacent the mitral valve; deploying a radiopaque target from the distal end of the catheter to a location within the mitral valve, the radiopaque target being sufficiently conformable to reconfigure in response to opening and closing of the mitral valve; and observing the alignment of the radiopaque target in response to closing of the mitral valve.
Claim 9
Dependent Claim
17 words
A method as in claim 6 , wherein the radiopaque target comprises a plurality of radiopaque markers.
Claim 10
Dependent Claim
27 words
A method as in claim 7 , further comprising a plurality of wires and wherein the plurality of radiopaque markers are disposed on the plurality of wires.
Claim 11
Dependent Claim
25 words
A method as in claim 7 , further comprising an expandable basket and wherein the plurality of radiopaque markers are disposed on the expandable basket.
Claim 12
Independent Claim
90 words
A method of assessing the functionality of a valve, comprising the steps of: providing a conformable target, the conformable target having a primary axis and configured to conform to the coaption axis of the valve during opening and closing of the valve; positioning the conformable target within the valve; visualizing the target along a viewing axis which is transverse to the primary axis, in the vicinity of the valve; and observing the orientation of the target when the valve is open and closed for assessing the functionality of the valve.
Claim 13
Independent Claim
90 words
A method of assessing the functionality of a valve, comprising the steps of: providing a conformable target, the conformable target having a primary axis and configured to conform to the coaption axis of the valve during opening and closing of the valve; positioning the conformable target within the valve; visualizing the target along a viewing axis which is transverse to the primary axis, in the vicinity of the valve; and observing the orientation of the target when the valve is open and closed for assessing the functionality of the valve.
Claim 14
Dependent Claim
30 words
A method of assessing the functionality of a heart valve as in claim 1 , comprising positioning an implant within the coronary sinus in a preselected relationship to the device.
Claim 15
Dependent Claim
33 words
A method of assessing the functionality of a heart valve as in claim 11 , wherein the implant is positioned such that it applies pressure on a posterior leaflet of the mitral valve.
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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) | 2009-02-27 | 2009-08-29 | 2010-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2013-02-27 | 2013-08-29 | 2014-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2017-02-27 | 2017-08-29 | 2018-02-28 | $7700.00 | Window Closed / Lapsed |