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Publication Detail
HEART VALVE PROSTHESIS
  • Publication Type:
    Patent
  • Authors:
    Seifalian AM, Zervides C, Burriesci G
  • Publication date:
    08/02/2012
  • Territory:
    AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR
  • Patent number:
    EP2413842 (A1)
  • Filed date:
    08/02/2012
Abstract
The present invention provides: a heart valve prosthesis comprising: a support structure comprising a framework deformable between an expanded state and a compressed state and vice versa; and a flow-control structure, supported by the support structure, for permitting blood flow in a first direction, defining an axial direction of the prosthesis, and for restricting blood flow in a direction opposite to the first direction, wherein at least one end of the support structure comprises a plurality of apexes of the framework, and wherein the support structure is collapsible into the compressed state by pulling on the apexes, to enable it to be drawn into a sheath in the compressed state, the sheath having an inner radial dimension smaller than the radial dimension of the support structure in the expanded state. Another aspect of the invention provides: a method of collapsing a heart valve prosthesis, the prosthesis comprising: a support structure comprising a framework deformable between an expanded state and a compressed state and vice versa; and a flow-control structure, supported by the support structure, for permitting blood flow in a first direction, defining an axial direction of the prosthesis, and for restricting blood flow in a direction opposite to the first direction, wherein at least one end of the support structure comprises a plurality of apexes of the framework, the method comprising: pulling on the apexes when in the expanded state, to commence collapse into the compressed state; and drawing the prosthesis into a sheath having an inner radial dimension smaller than the radial dimension of the support structure in the expanded state.
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