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DELIVERY SYSTEM HAVING A SPLIT DISTAL TIP FOR IMPROVED POSITIONING OF A TRANSCATHETER HEART VALVE
DELIVERY SYSTEM HAVING A SPLIT DISTAL TIP FOR IMPROVED POSITIONING OF A TRANSCATHETER HEART VALVE
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机译:输送系统具有分开的远端尖端,用于改善经导管心阀的定位
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摘要
A delivery system includes a handle, an inner shaft having a distal portion configured to receive the heart valve prosthesis thereon, a push wire slidingly disposed through a lumen of the inner shaft, and an outer sheath configured to cover the heart valve prosthesis during delivery. A split distal tip or nosecone is attached to a distal end of the inner shaft and includes at least one cutout portion formed through a sidewall thereof. A proximal end of the push wire is operatively coupled to an actuator of the handle and a distal end of the push wire is attached to the cutout portion of the nosecone. When the nosecone is in a delivery configuration the cutout portion is substantially flush with the sidewall of the nosecone. When the nosecone is in a deployed configuration the cutout portion is spaced apart from the sidewall of the nosecone.
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