Patent US4350157A successfully refreshed from Google Patents.
US6852076B2
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US
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Method for improving cardiac function
Assignee: Edwards Lifesciences Corp
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Filing: 2003-03-06
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Granted: 2005-02-08
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Expires: 2023-03-06
Abstract
Abstract A method and a device for improving cardiac function are provided. The device is packaged in a collapsed state in an end of a catheter. Portions of a frame construction of the device spring outwardly when the catheter is withdrawn from the device. Anchoring formations on the frame construction secure the frame construction to a myocardium of the heart. A membrane secured to the frame construction then forms a division between volumes of an endocardial cavity of the heart on opposing sides of the membrane.
Inventors
- 👤 Serjan D. Nikolic
- 👤 Hugh R. Sharkey
- 👤 Branislav Radovancevic
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:44
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/12; A61B17/12022; A61B17/00234; A61B17/0057; A61B17/12099; A61B17/12122; A61B17/12131; A61B17/12168; A61B17/12172; A61N; A61N1/00; A61N1/02; A61N1/04; A61N1/05; A61B2017/00238; A61B2017/00243; A61B2017/00575; A61B2017/00579; A61B2017/00592; A61B2017/00597; A61B2017/00632; A61B17/04; A61B17/0401; A61B2017/044; A61B17/0469; A61B2017/048; A61B2017/1205; Y; Y10; Y10S; Y10S623/00; Y10S623/902; Y10S623/904; Y10S623/909; Y10S623/91
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
96 words
A method of treating a patient's with congestive heart failure, comprising: advancing a reinforced partitioning component into a left ventricle of the patient's heart in a contracted configuration; expanding the reinforced partitioning component within the left ventricle to a deployed configuration; securing a periphery of the expanded reinforced partitioning component within the left ventricle of the patient's heart to separate the left ventricle into a main functioning portion and a secondary, essentially non-functioning portion with a central portion of the partitioning component spaced from a ventricular wall of the secondary portion of the patient's left ventricle.
Claim 2
Independent Claim
96 words
A method of treating a patient's with congestive heart failure, comprising: advancing a reinforced partitioning component into a left ventricle of the patient's heart in a contracted configuration; expanding the reinforced partitioning component within the left ventricle to a deployed configuration; securing a periphery of the expanded reinforced partitioning component within the left ventricle of the patient's heart to separate the left ventricle into a main functioning portion and a secondary, essentially non-functioning portion with a central portion of the partitioning component spaced from a ventricular wall of the secondary portion of the patient's left ventricle.
Claim 3
Dependent Claim
31 words
The method of claim 1 , wherein at least a peripheral part of the reinforced partitioning component penetrates into but not through a ventricular wall defining in part the left ventricle.
Claim 4
Dependent Claim
33 words
The method of claim 2 , wherein the peripheral part of the reinforced partitioning component that penetrates into but not through a ventricular wall is an anchoring hook having a sharp penetrating end.
Claim 5
Dependent Claim
27 words
The method of claim 3 , wherein the sharp penetrating end is at least one of a pin, a clam, a staple, a screw, and surgical thread.
Claim 6
Dependent Claim
21 words
The method of claim 1 , wherein the periphery of the reinforced partitioning component is secured at a plurality of locations.
Claim 7
Dependent Claim
23 words
The method of claim 1 , wherein anchoring the expanded reinforced partitioning component within the left ventricle increases cardiac output of the heart.
Claim 8
Dependent Claim
28 words
The method of claim 1 , wherein the the expanded reinforced partitioning component within the left ventricle decreases myocardium stretch during a pump cycle of the left ventricle.
Claim 9
Dependent Claim
20 words
The method of claim 1 , wherein the left ventricle sustains a peak left ventricular pressure above 60 mm Hg.
Claim 10
Dependent Claim
17 words
The method of claim 8 , wherein the peak left ventricular pressure is approximately 120 mm Hg.
Claim 11
Independent Claim
103 words
A method of treating a patient having congestive heart failure, comprising: percutaneously introducing a delivery catheter into the patient's vasculature and advancing the delivery catheter therein until a distal end of the delivery catheter is disposed within the patient's left ventricle; advancing a reinforced partitioning membrane device through the delivery catheter until the reinforced partitioning membrane device is discharged into an left ventricle of the patient's heart; expanding the reinforced partitioning membrane device at a location within the patient's left ventricle to partition the patient's left ventricle into pressurized and non-pressurized portions; and anchoring the expanded reinforced partitioning membrane device at the location.
Claim 12
Independent Claim
103 words
A method of treating a patient having congestive heart failure, comprising: percutaneously introducing a delivery catheter into the patient's vasculature and advancing the delivery catheter therein until a distal end of the delivery catheter is disposed within the patient's left ventricle; advancing a reinforced partitioning membrane device through the delivery catheter until the reinforced partitioning membrane device is discharged into an left ventricle of the patient's heart; expanding the reinforced partitioning membrane device at a location within the patient's left ventricle to partition the patient's left ventricle into pressurized and non-pressurized portions; and anchoring the expanded reinforced partitioning membrane device at the location.
Claim 13
Dependent Claim
14 words
The method of claim 10 wherein the reinforced partitioning membrane is a porous membrane.
Claim 14
Dependent Claim
17 words
The method of claim 11 wherein the membrane partitions the heart chamber into pressurized and non-pressurized portions.
Claim 15
Independent Claim
88 words
A method of improving cardiac function of a patient's heart, comprising: a. providing a reinforced membrane device configured to be secured within a portion of a left ventricle of the patient's heart; b. anchoring the reinforced membrane device within the patient's left ventricle to partition the left ventricle into pressurized and unpressurized portions to improve the cardiac function of the heart, and c. axially spacing a central portion of the reinforced membrane device from a wall defining at least in part the un-pressurized portion of the left ventricle.
Claim 16
Independent Claim
88 words
A method of improving cardiac function of a patient's heart, comprising: a. providing a reinforced membrane device configured to be secured within a portion of a left ventricle of the patient's heart; b. anchoring the reinforced membrane device within the patient's left ventricle to partition the left ventricle into pressurized and unpressurized portions to improve the cardiac function of the heart, and c. axially spacing a central portion of the reinforced membrane device from a wall defining at least in part the un-pressurized portion of the left ventricle.
Claim 17
Dependent Claim
43 words
The method of claim 13 wherein the central portion of the reinforced membrane device has a stem extending from the central portion thereof to space the central portion from the wall defining at least in part the un-pressurized portion of the left ventricle.
Claim 18
Dependent Claim
39 words
The method of claim 14 , wherein the the stem of the reinforced partitioning component includes a screw at a free end to secure the stem to the ventricular wall of the secondary portion of the patient's left ventricle.
Claim 19
Dependent Claim
37 words
The method of claim 13 wherein the reinforced membrane partitioning component has a stem extending from the central portion thereof to space the central portion from the wall of the secondary portion of the patient's left ventricle.
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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) | 2008-02-08 | 2008-08-09 | 2009-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2012-02-08 | 2012-08-09 | 2013-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2016-02-08 | 2016-08-09 | 2017-02-08 | $7700.00 | Window Closed / Lapsed |