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Expandable delivery appliance particularly for delivering intravascular devices

  • US 20030100939A1
  • Filed: 11/06/2002
  • Published: 05/29/2003
  • Est. Priority Date: 11/23/2001
  • Status: Active Grant
First Claim
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1. A delivery appliance for delivering an expandable annular device to a desired location in a lumen, comprising:

  • an annular array of supporting strips extending from a proximal end of the annular array to a distal end of the annular array, to define an annular supporting surface for said expandable annular device, each of said supporting strips being laterally deformable to radially expand or radially contract said annular array and said annular supporting surface defined thereby;

    and a connecting stem passing through said annular array of supporting strips;

    said connecting stem having a distal end coupled to said supporting strips at the distal end of the annular array for axial movement therewith, and a proximal end passing through the proximal end of the annular array of supporting strips for axial movement with respect thereto;

    said proximal end of the connecting stem being axially movable in one direction to move said distal end of the annular array axially away from said proximal end of the annular array to radially contract said annular supporting surface;

    said proximal end of the connecting stem being axially movable in the opposite direction to move said distal end of the annular array axially towards said proximal end of the annular array to radially expand said annular supporting surface.

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