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Catheter with removable balloon protector and stent delivery system with removable stent protector

  • US 5,893,868 A
  • Filed: 03/05/1997
  • Issued: 04/13/1999
  • Est. Priority Date: 03/05/1997
  • Status: Expired due to Term
First Claim
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1. A stent delivery system comprising:

  • a catheter comprising a proximal portion, a distal portion, a shaft and an expandable member located at the distal portion, said expandable member having a first end and a second end and being constructed and arranged for expanding the outer diameter of said catheter from a contracted state to an expanded state;

    a radially expandable stent of generally cylindrical configuration positioned around said distal portion of said catheter around the expandable member, said stent having a contracted condition, being sized in the contracted condition to closely surround the catheter in the contracted state, and further being expandable to an expanded condition;

    removable stent protector means comprising a first removable sleeve in the region of the distal portion of the catheter positioned around the stent, said first sleeve further comprising a first end, and a second end, said sleeve having a variable inner diameter to ease sliding the first sleeve over the balloon and stent, said stent protector means being removed prior to use of the stent delivery system and release of the stent by expansion of the balloon.

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