Angiographic guidewire with safety core wire

Details Angiographic guidewire with safety core wire Angiographic guidewire with safety core wire

1975-04-22

1977-01-18

Mancene, Louis G.

Surgery

Truss

Perineal

128205, A61B 502

Patent

active

040033694

ABSTRACT:
There is disclosed a catheter guidewire and a method for manufacturing the guidewire. In one embodiment, the guidewire is developed from a coiled semi-rectangular flatwire which has been coated with a surface lubricant such as Teflon prior to winding. In another embodiment, the flatwire is wound, polished by abrasion and then electropolished. A combination safety core wire extends longitudinally within the coiled guidewire and is welded to the respective ends of the guidewire. The safety core wire is a cylindrical wire whose uniform main body is smoothly tapered into an ultra-flexible flattened distal tip by means of combined mechanical metal forming and electro-etching techniques.

REFERENCES:
patent: 3452742 (1969-07-01), Muller
patent: 3731671 (1973-05-01), Mageoh
patent: 3789841 (1974-02-01), Antoshkiw
patent: 3906938 (1975-09-01), Fleischhacker

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