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SYSTÈME DE POSE DE VALVULE CARDIAQUE PROTHÉTIQUE DE TYPE TRANSCATHÉTER À STENT
专利权人:
Medtronic Inc.
发明人:
申请号:
EP10759785.8
公开号:
EP2480167B1
申请日:
2010.09.21
申请国别(地区):
EP
年份:
2017
代理人:
摘要:
A percutaneous stented valve delivery device including an inner shaft, a sheath, and a delivery capsule. The sheath slidably receives the inner shaft. A capsule proximal zone is attached to the sheath. A capsule distal zone is configured to transition between normal and flared states. A diameter of the distal zone is greater in the flared state, and the capsule includes a shape memory component that naturally assumes the normal state. The device is operable to perform a reversible partial deployment procedure in which a portion of the prosthesis is exposed distal the capsule and allowed to radially expand. Subsequently, with distal advancement of the capsule, the distal zone transitions to the flared state and imparts a collapsing force onto the prosthesis, causing the prosthesis to radially collapse and become recaptured within the delivery capsule. The capsule can include a laser cut tube encapsulated by a polymer.
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中国工程科技知识中心
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