发明授权
US5876436A Rotatable cuff assembly for a heart valve prosthesis 失效
用于心脏瓣膜假体的可旋转袖带组件

Rotatable cuff assembly for a heart valve prosthesis
摘要:
The invention provides a sewing cuff assembly for mounting to the body of a heart valve prosthesis. The sewing cuff assembly comprises a resiliently deformed spring for exerting a force directed toward the orifice structure. When a torque is applied to the valve, the force results in a rotation-resisting torque sufficient to resist rotation during normal operation of the valve after implantation but low enough to permit assisted rotation, as during surgery.
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