Selectively adjustable cardiac valve implants

a heart valve and selective adjustment technology, applied in the field of annuloplasty rings, can solve the problems of ineffective closure of valve leaflets, insufficient valve leaflets, and blood circulation affecting the function of the heart valve,
US20050288778A1Inactive Publication Date: 2005-12-29MICARDIA CORP
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Patent Information

Authority / Receiving Office
US · United States
Current Assignee / Owner
MICARDIA CORP
Publication Date
2005-12-29
Estimated Expiration
Not applicable · inactive patent

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Abstract

Methods and devices are provided for support of a body structure. The devices can be adjusted within the body of a patient in a minimally invasive or non-invasive manner such as by applying energy percutaneously or external to the patient's body. The energy may include, for example, acoustic energy, radio frequency energy, light energy and magnetic energy. Thus, as the body structure changes size and / or shape, the size and / or shape of the annuloplasty rings can be adjusted to provide continued reinforcement. In certain embodiments, the devices include a first body member including a first shape memory material configured to transform the annuloplasty ring from a first configuration having a first size of a dimension to a second configuration having a second size of the dimension. The second size is less than said first size in septal lateral distance. The devices also include a second body member including a second shape memory material configured to transform the annuloplasty ring from the second configuration to a third configuration having a third size of the dimension, wherein the second size is less than the third size in septal lateral distance.
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Description

RELATED APPLICATIONS

[0001] This application claims the benefit under 35 U.S.C. § 119(e) of U.S. Provisional Application No. 60 / 584,432, filed Jun. 29, 2004, the entirety of which is hereby incorporated by reference herein.BACKGROUND OF THE INVENTION

[0002] 1. Field of the Invention

[0003] The present invention relates to methods and devices for reinforcing dysfunctional heart valves and other body structures. More specifically, the present invention relates to annuloplasty rings that can be adjusted within the body of a patient.

[0004] 2. Description of the Related Art

[0005] The circulatory system of mammals includes the heart and the interconnecting vessels throughout the body that include both veins and arteries. The human heart includes four chambers, which are the left and right atrium and the left and right ventricles. The mitral valve, which allows blood flow in one direction, is positioned between the left ventricle and left atrium. The tricuspid valve is positioned between...

Claims

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