Thorascopic heart valve repair method and apparatus

A - Human Necessities – 61 – F

Patent

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Details

A61F 2/24 (2006.01) A61B 17/062 (2006.01)

Patent

CA 2595459

An instrument for performing thorascopic repair of heart valves includes a shaft for extending through the chest cavity and into a heart chamber providing access to a valve needing repair. A movable tip on the shaft is operable to capture a valve leaflet and a needle is operable to penetrate a capture valve leaflet and draw the suture therethrough. The suture is thus fastened to the valve leaflet and the instrument is withdrawn from the heart chamber transporting the suture outside the heart chamber. The suture is anchored to the heart wall with proper tension as determined by observing valve operation with an ultrasonic imaging system.

L'invention concerne un instrument pour effectuer une réparation thorascopique des valvules cardiaque, comportant une tige conçue pour s'étendre dans la cage thoracique et dans un ventricule donnant accès à une valvule ayant besoin d'une réparation. Une pointe mobile sur la tige est conçue pour capturer un feuillet de valvule et tirer le fil de suture dans celui-ci. Le fil de suture est ensuite fixé au feuillet de valvule et l'instrument est retiré du ventricule de manière qu'il sorte le fil de suture de ce dernier. Le fil de suture est ancré à la paroi du coeur avec une tension appropriée telle que déterminée par l'observation du fonctionnement de la valvule par un système d'imagerie ultrasonore.

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