Manufacturing process of coil

Details Manufacturing process of coil Manufacturing process of coil

1995-06-16

1997-07-15

Echols, P. W.

Metal working

Method of mechanical manufacture

Spring making

228156, 228265, B21F 3500

Patent

active

056471270

ABSTRACT:
A guide wire for medical purposes having a proximal section and a distal section and formed by inserting all or a portion of a slender and flexible shaft into a coil and fixing the shaft to the coil, wherein the coil is a multiple-wire coil consisting of at least two pieces of wire, at least one of these pieces of wire is made of a material which is opaque against radioactive rays such as X-rays, and a portion of the coil closer to the distal section of the shaft is a single-wire coil consisting of only a composite wire made of the radiopaque material.

REFERENCES:
patent: 4020829 (1977-05-01), Willson et al.
patent: 4884579 (1989-12-01), Engelson
patent: 4917285 (1990-04-01), Shosie
patent: 4922924 (1990-05-01), Gambale et al.
patent: 5144959 (1992-09-01), Gambale et al.
patent: 5174302 (1992-12-01), Palmer

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