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Apparatus for delivering endoluminal prostheses and methods of making and using them

  • US 6,945,989 B1
  • Filed: 09/18/2000
  • Issued: 09/20/2005
  • Est. Priority Date: 09/18/2000
  • Status: Expired due to Term
First Claim
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1. An apparatus for delivering a prosthesis into a blood vessel of a patient, comprising:

  • an elongate tubular member having a proximal end, a distal end, and a lumen extending between the proximal and distal ends, the distal end having a size for endoluminal insertion into a blood vessel and terminating in a substantially atraumatic distal portion comprising a plurality of flexible leaflets integrally molded thereto, the leaflets being deflectable from a closed position wherein the leaflets engage one another to an open position wherein the leaflets define an opening communicating with the lumen;

    a tubular prosthesis disposed within the lumen proximate the distal portion; and

    an elongate bumper member having a proximal end and a distal end, the bumper member being slidably disposed within the lumen of the elongate tubular member, the distal end of the bumper member having a blunt edge that engages the proximal end of the prosthesis for preventing axial displacement of the prosthesis upon retraction of the tubular member with respect to the bumper member;

    wherein the bumper member comprises a helical coil.

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