| 摘要 |
A guide wire for a catheter, which is used to guide a catheter into a body cavity, such as a blood vessel, wherein a base material forming this wire consists of a linear elastic alloy, the base material being heat treated so that the flexibility thereof increases progressively from the base thereof toward the tip thereof. At least the tip of this linear base material may be covered with a thermoplastic resin and/or a coiled spring. A method of manufacturing such a catheter guide wire, consisting of the steps of dividing the chip of the base material into a plurality of sections, and heat treating these sections at different temperatures and under different time conditions so that the flexibility of the base material increases progressively from the base thereof toward the tip thereof. |
