Catheter guide wire and catheter

Details Catheter guide wire and catheter Catheter guide wire and catheter

1992-07-13

1994-04-26

Green, Randall L.

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

604282, 128772, 138130, 267168, A61M 2501, A61B 500

Patent

active

053062523

ABSTRACT:
A catheter guide wire which, despite its reduced diameter, exhibits improved strength and resistance to corrosion by body fluids and medicines. The catheter guide wire 10 is composed of a stainless steel core wire 11, a winding of a low carbon duplex structure steel wire 13 having a diameter smaller than 30 .mu.m and a tensile strength higher than 300 kgf/mm.sup.2, said winding covering the core wire such that tiers of the low carbon duplex structure steel wire run obliquely to the axis of the core wire 11 and have turns crossing each other, and a polyester resin film 15, thinner than 3 .mu.m, covering the low carbon duplex structure steel wire 13. The catheter is composed of a resin inner tube and a low carbon duplex structure steel wire 13 covered with a polyester resin film 15, which runs around the resin inner tube obliquely to the axis and crosses each other.

REFERENCES:
patent: 4613385 (1986-09-01), Thomas et al.
patent: 4925445 (1990-05-01), Sakamoto et al.
patent: 5107852 (1992-04-01), Davidson et al.
patent: 5165421 (1992-11-01), Fleischhacker

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