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Mechanical apparatus and method for deployment of expandable prosthesis

  • US 5,755,708 A
  • Filed: 05/15/1996
  • Issued: 05/26/1998
  • Est. Priority Date: 12/09/1994
  • Status: Expired due to Fees
First Claim
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1. A device for intraluminal delivery and deployment of a stent or prosthesis positioned within a body passageway and enlarging a flow passage in a vessel carrying flowing blood which comprises:

  • a substantially cylindrical shaped expansion member having a first end and a second end, said first end being a distance from said second end;

    an altering means engagable to said first end and said second end of said expansion member for altering said first distance therebetween to move said expansion member between a first configuration wherein said expansion member is characterized by a first diameter and a second configuration wherein said expansion member is characterized by a second diameter, said second diameter being greater than said first diameter;

    said expansion member having an interior flow passage extending therethrough with a diameter and a longitudinally extending central axis for permitting the passage of blood through said expansion member; and

    said altering means including an outer flexible elongate tubular member having proximal and distal extremities, said distal extremity of the outer flexible elongate tubular member being secured to the first end of said expansion member and an inner flexible elongate tubular member having proximal and distal extremities and having sufficient rigidity for causing elongation of the expansion member, said distal extremity of the inner flexible elongate tubular member being secured to the second end of said expansion member.

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