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Cardiovascular guidewire of enhanced biocompatibility

  • US 5,477,864 A
  • Filed: 08/26/1993
  • Issued: 12/26/1995
  • Est. Priority Date: 12/21/1989
  • Status: Expired due to Fees
First Claim
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1. A flexible guide wire for insertion into a living body to perform surgical operations, the guide wire comprising:

  • (a) an elongate, flexible guide wire body having a distal end, for insertion into a patient and into a catheter, and a proximal end for controlling the guide wire;

    (b) an elongate guide wire core disposed internally along the longitudinal axis of the elongate body, said core comprising a biocompatible low elastic modulus metal alloy comprising;

    (i) titanium; and

    (ii) from about 10 to about 20 wt. % niobium or from about 35 to about 50 wt. % niobium;

    wherein the alloy is free of toxic elements, except such amounts of said toxic elements as may occur as impurities in the metal alloy and as contaminants as a result of alloying process.

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