Jibin Yang,Scott H. Heneveld, Sr.,Matthew L. Pease,Brandon G. Walsh
申请号：
US15017177
公开号：
US09848985B2
申请日:
2016.02.05
申请国别(地区):
US
年份:
2017
代理人:
摘要：
A system for delivering and deploying a self-expandable heart valve to a site of implantation such as the aortic annulus includes a deployment mechanism that engages the valve and regulates the rate of expansion of both the proximal and distal ends thereof. The heart valve may be a rolled-type valve and the deployment mechanism may include a plurality of distal fingers and a plurality of proximal fingers that engage the outer layer of the heart valve. Controlled radial movement of the fingers regulates the unwinding of the rolled heart valve. The deployment mechanism may include an umbrella structure that forces the rolled valve outward into its fully expanded configuration. Alternatively, a gear shaft that engages one or more gear tracks on the valve may be utilized to regulate expansion of the valve.
