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Balloon catheter apparatus and method

  • US 6,626,861 B1
  • Filed: 10/04/2000
  • Issued: 09/30/2003
  • Est. Priority Date: 04/22/1998
  • Status: Expired due to Term
First Claim
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1. A surgical device for controlling the expansion and shape of a body conduit, said surgical device comprising:

  • an outer tube having a longitudinal axis extending between a proximal end and a distal end;

    an inner member extending coaxially within said outer tube, said inner member longitudinally slidable within said outer tube and configured such that a longitudinal passageway is created between said inner member and said outer tube for passage of a fluid therethrough;

    a balloon disposed coaxially about said inner member, said balloon having a proximal balloon end connected to said distal end of said outer tube and a distal balloon end connected to said inner member to define an annular balloon chamber in fluid connection with said longitudinal passageway, said balloon having properties for inflating and deflating in response to the fluid passing through the longitudinal passageway; and

    an outer sleeve surrounding said balloon, said sleeve having a proximal sleeve end connected to said distal end of said outer tube and a distal sleeve end connected to the distal end of said inner member such that said outer sleeve is radially expandable and collapsible independent of said balloon through movement of the inner member relative to the outer tube.

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