System using a helical retainer in the direct plication annuloplasty treatment of mitral valve regurgitation

a technology of mitral valve and helical retainer, which is applied in the field of direct plication annuloplasty can solve the problems of imperfect valve closure, problem of mitral valve gap, and no commercially successful device for the treatment of mitral valve regurgitation in such a manner currently exists, so as to reduce the possibility of clot development, reduce interference with leaflet motion or
US20090105816A1Inactive Publication Date: 2009-04-23CORDIS CORP
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
CORDIS CORP
Publication Date
2009-04-23
Estimated Expiration
Not applicable · inactive patent

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Abstract

A system for using a helical retainer in the treatment of mitral valve regurgitation by reshaping the mitral valve annulus using one or more plications of annular tissue each fixed by a retaining clip is described. The system includes four devices to achieve such percutaneous direct plication annuloplasty. The first is a preferably prolapsable crossing catheter. Second, a deflecting guide catheter is used to provide a means for guiding the plication device into proper position at the subvalvular region of the mitral valve annulus. Third, the plication device is then used to make plications in at or near the subvalvular region of the mitral valve annulus. Fourth, a helical retainer clip deployed by the plication device in order to retain the plicated tissue in the plicated form. Alternatively, the fourth device is a retainer delivery catheter that enables delivery of a helical retainer over the outside of the plication device.
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Description

CROSS-REFERENCE TO RELATED APPLICATIONS

[0001] This application claims the benefit of U.S. Provisional Patent Application Ser. No. 60 / 981,303 filed Oct. 19, 2007 which is herby incorporated by reference in its entirety.FIELD OF THE INVENTION

[0002] The present invention relates to a device and method for treating the vasculature and internal organs of a patient. Particularly, the present invention is directed to a system and method for treating mitral valve regurgitation in the heart of a patient using a plication device to insert a helical fastener in plicated tissue.BACKGROUND OF THE INVENTION

[0003] Catheter based devices are used to treat a wide variety of medical problems in a minimally invasive manner. Catheters are used to place and expand angioplasty balloons used to widen veins and arteries narrowed by plaque. Small scaffolds called stents have been introduced into the vasculature using catheter-based systems in order to prevent the restenosis of such vessels. One of the problems...

Claims

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