Claims
- 1. A method of producing a coil for a guide wire used for medical purposes, comprising steps of:
- contacting and fixing an axial end of a piece of wire made of radiopaque material to an axial end of a piece of wire made of radiotransparent material by means of welding;
- passing the connected pieces of wire through a die to form a composite wire having a smaller diameter; and
- winding the composite wire into a coil.
- 2. A method of producing a coil for a guide wire used for medical purposes, comprising the steps of:
- inserting a piece of wire made of radiopaque material into a first end of a tubular sleeve made of radiotransparent material;
- inserting a piece of wire made of radiotransparent material into a second end of the tubular sleeve;
- passing the pieces of wire and tube assembly through a die to form a composite wire having a smaller diameter; and
- winding the composite wire into a coil.
Parent Case Info
This is a division of application Ser. No. 08/164,221 filed Dec. 7, 1993, now U.S. Pat. No. 5,520,194.
US Referenced Citations (6)
Foreign Referenced Citations (1)
Number |
Date |
Country |
9219663 |
Oct 1993 |
WOX |
Divisions (1)
|
Number |
Date |
Country |
Parent |
164221 |
Dec 1993 |
|