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Low profile catheter for increasing lumen size of a blood vessel and guide wire therefor

  • US 5,292,315 A
  • Filed: 06/17/1992
  • Issued: 03/08/1994
  • Est. Priority Date: 09/17/1990
  • Status: Expired due to Term
First Claim
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1. A low profile catheter for intravascular use, comprising:

  • a catheter shaft having proximal and distal ends and defining an axis extending therebetween;

    a guide wire positioned in the catheter shaft, said guide wire having proximal and distal ends, said distal end extending beyond the distal end of the catheter shaft; and

    means for automatically transmitting torque from the catheter shaft to the guide wire when the catheter shaft is rotated with respect to the guide wire and for automatically permitting relative axial movement therebetween when the guide wire is advanced with respect to the catheter shaft, said means located in said catheter shaft at least in part adjacent to said guide wire.

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