Flexible catheter guidewire

Details Flexible catheter guidewire Flexible catheter guidewire

1992-09-04

1995-08-01

Rimell, Sam

Surgery

Truss

Pad

128657, 604280, 604282, A61B 500

Patent

active

054372887

ABSTRACT:
An apparatus for use as a catheter guidewire and a method for making a catheter guidewire. The apparatus comprises an elongate non-coiled wire having a proximal portion, a distal tip and a flexible portion located between the proximal portion and the distal tip having axially spaced grooves cut therein. The method for making the guidewire includes burnishing one end of a wire to create a rounded distal tip and cutting a predetermined pattern of axially spaced grooves in a length of wire adjacent to the distal tip to create a flexible portion.

REFERENCES:
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patent: 4763647 (1988-08-01), Gambale
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patent: 5003989 (1991-04-01), Taylor et al.
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patent: 5069226 (1991-12-01), Yamauchi et al.
patent: 5095915 (1992-03-01), Engelson
patent: 5133364 (1992-07-01), Palermo et al.
Mooney et al., The Ultra-Select Guidewire: A New Nitinol Guidewire for Coronary Angioplasy, J. Inv. Card., Sep./Oct. 1991, vol. 3, No. 5, p. 242.
Stice, The Use of Superelasticity in Guidewires and Arthroscopic Instrumentation, Engineering Aspects of Shape Memory Alloys, Butterworth-Heinemann Ed., T. W. Duerig et al., p. 483, 1990.
Cole-Parmer Instrument Company, 1991-1992 catalogs, p. 888 (Grooved PTFE tubing).

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