Devices and methods for percutaneous mitral valve repair

Details Devices and methods for percutaneous mitral valve repair Devices and methods for percutaneous mitral valve repair

2005-04-05

2005-04-05

Nguyen, Anhtuan T. (Department: 3731)

Surgery

Instruments

Sutureless closure

C606S139000, C623S002110

Reexamination Certificate

active

06875224

ABSTRACT:
Devices and methods are provided for diagnosing and repairing mitral valve defects such as mitral valve regurgitation. According to an exemplary method, mitral valve function is visualized by transesophageal echocardiography. A catheter is inserted along the venous system of the patient through the atrium into the mitral valve. A suction tip grasps the leaflets of the mitral valve to immobilize and juxtapose the leaflets at a point simulating a stitch, and the mitral valve is again observed to confirm that fastening at that point will repair the prolapse or other defect. The mitral valve leaflets are then via a fastening such as a staple or shape memory rivet. The fastener may be inserted by a stapling assembly in the venous catheter tip, or by a separate stapler that is inserted along an arterial path from the opposite direction and guided along a transcardiac rail to the immobilized point. Upon completion of the repair process, the mitral valve is once again visualized by transesophageal echocardiography to determine whether repair thereof has been effected.

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