Guidewire with movable core and external tubular safety cover

Details Guidewire with movable core and external tubular safety cover Guidewire with movable core and external tubular safety cover

1988-01-21

1990-01-23

Sykes, Angela D.

Surgery

Truss

Pad

128657, 604170, A61M 2500

Patent

active

048951684

ABSTRACT:
A movable core guidewire assembly comprising a wire wound cylindrical casing having a distal closed end and a proximal open end, a resilient movable core wire extending inside the cylindrical casing between its proximal and distal ends, and a plastic safety cover coextensive with and surrounding the wire wound cylindrical casing. The plastic safety cover functions to retain fragments of a broken guidewire, replacing the interior safety wire used in prior art guidewire assemblies. Therefore, the movable core wire can utilize all the space inside the cylindrical casing to maximize the ability of medical personnel to manipulate the guidewire assembly inside the body. A specific procedure for forming a closed distal tip of the guidewire assembly from an initially open ended casing and safety cover is also disclosed.

REFERENCES:
patent: 3841308 (1974-10-01), Tate
patent: 3922378 (1975-11-01), Kline
patent: 3973556 (1976-08-01), Fleischhacker et al.
patent: 4003369 (1977-01-01), Heilman et al.
patent: 4080706 (1978-03-01), Heilman et al.
patent: 4307722 (1981-12-01), Evans
patent: 4548206 (1985-10-01), Osborne
patent: 4619274 (1986-10-01), Morrison
patent: 4676249 (1987-06-01), Arenas et al.
"The SOS Open Ended Guide Wire from USCI, Application and Case Studies", published by C. R. Bard, Inc., 1985.
"SOS Interventional Wire Guides", published by Cook Inc., 1986.

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