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Actively controllable stent, stent graft, heart valve and method of controlling same

  • US 9,814,611 B2
  • Filed: 02/20/2013
  • Issued: 11/14/2017
  • Est. Priority Date: 07/31/2007
  • Status: Active Grant
First Claim
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1. A surgical implant, comprising:

  • a self-expanding stent of a shape-memory material set to a given shape, the self-expanding stent having a wall with at least one first portion having a first wall thickness and at least one second portion having a second wall thickness greater than the first wall thickness, the at least one second portion defining a plurality of key-hole shaped longitudinal drive orifices, wherein the key-hole shaped longitudinal drive orifices have openings facing radially outwards or radially inwards; and

    a selectively adjustable assembly at the self-expanding stent, having adjustable elements, and being operable to force a configuration change in at least a portion of the self-expanding stent, the adjustable elements each having a part rotatably disposed within a respective key-hole shaped longitudinal drive orifice.

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