Graduated guidewire

Details Graduated guidewire Graduated guidewire

1989-10-04

1992-01-28

Pellegrino, Stephen C.

Surgery

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

Treating material introduced into or removed from body...

604117, 128772, A61M 5178

Patent

active

050840223

ABSTRACT:
Disclosed herein are various types of guidewires that are provided with spaced indicia to indicate the distance that a guidewire is extended into a vascular vessel, catheter or other instruments. That is, there are disclosed J-type, linear type and steerable type guidewires. Preferably the indicia is made up of a system of marks to indicate various units of measurements, for example units of 10, with narrow bands representing the units such as 10, 20, 30 and 40 while wider bands represent units of 50. If the guidewire is a double ended guidewire then the indicia would represent progressively higher indicia from each end of the linear part of the guidewire. Preferably the marks are formed by electro-chemical etching of the metal wire forming at least a part of the guidewire and if desired may be provided with a clear plastic coating that is non-toxic and bio-compatible. The marks may be formed by other process, for example laser treatment.

REFERENCES:
patent: 4500313 (1985-02-01), Young
patent: 4671291 (1987-06-01), Wilson
patent: 4773432 (1988-09-01), Rydell
patent: 4863423 (1989-09-01), Wallace
patent: 4917104 (1990-04-01), Rebell
patent: 4951686 (1990-08-01), Herlitze

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