High performance wires for use in medical devices and alloys the

Details High performance wires for use in medical devices and alloys the High performance wires for use in medical devices and alloys the

1995-02-21

1998-02-24

Hindenburg, Max

Surgery

Truss

Pad

604657, 604658, A61B 500

Patent

active

057203008

ABSTRACT:
An elongate flexible wire-like medical device, such as a guidewire for use with a catheter, is formed with a shaft in which the difference between the magnitude of the tensile yield stress and compressive yield stress of the shaft is substantially reduced. The guidewire exhibits superior kink resistance without compromising other desirable characteristics and enables a guidewire to be made in a smaller diameter without loss of performance. The guidewire shaft may be formed from a precipitation hardenable alloy such as an alloy of nickel, cobalt, molybdenum and chromium (MP35N and Elgiloy), 455PH stainless steel or stainless steel alloy 1RK91. Also disclosed is a process for increasing the modulus of elasticity of an alloy of nickel, cobalt molybdenum and chromium. Further, the disclosure relates to an improved management and manufacturing process for constructing the tip of a medical guidewire.

REFERENCES:
patent: Re33911 (1992-05-01), Samson et al.
patent: 2358799 (1944-09-01), Franks
patent: 3408178 (1968-10-01), Myers et al.
patent: 4721117 (1988-01-01), Mar et al.
patent: 4748986 (1988-06-01), Morrison et al.
patent: 4922924 (1990-05-01), Gambale et al.
patent: 4998923 (1991-03-01), Samson et al.
patent: 5120308 (1992-06-01), Hess
patent: 5176149 (1993-01-01), Grenouillet
patent: 5365943 (1994-11-01), Jansen
patent: 5372144 (1994-12-01), Mortier et al.
patent: 5411613 (1995-05-01), Rizk et al.
patent: 5415170 (1995-05-01), Hammerslag et al.
patent: 5449372 (1995-09-01), Schmaltz et al.
patent: 5465733 (1995-11-01), Hinohara et al.
Szombaltfalvy, "Tempering of High-Strength Steel Wires After Patenting and Cold Forming", Chemical Abstracts, vol. 83, No. 16, Oct. 20, 1975.
Assefpour-Dezfuly, "Strengthening Mechanisms in Elgiloy", Journal of Material Science, vol. 6053, No. 17, 1984.
Assefpour-Dezfuly, "Microplasticity in Elgiloy", Journal of Materials Science, vol. 6053, No. 20, 1985.

Affiliated with

Also associated with

Rating

High performance wires for use in medical devices and alloys the does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with High performance wires for use in medical devices and alloys the, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High performance wires for use in medical devices and alloys the will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1869567