Light diffusing guidewire

Details Light diffusing guidewire Light diffusing guidewire

Filed on

1994-07-14

Date issued

1995-08-15

Examiner

Aschenbrenner, Peter A.

Patent Class

Surgery

SubClass

Instruments

SubSubClass

Light application

Other Related Categories

606 7, 606 16, A61B 1736

Type

Patent

Status

active

Patent number

054414970

Description

ABSTRACT:
A light diffusing guidewire which has the ability to deliver light to luminal surfaces such as blood vessels for the diagnosis and treatment of medical conditions. The device can be used either in conjunction with another outer catheter such as a balloon catheter or as a stand-alone device. The light diffusing guidewire can be used as a standard guidewire for directing the placement of another catheter. The guidewire has an elongate body portion having a proximal end and a distal (invasive) end. A portion of the body portion transmits light from the proximal end to a light diffusing element within the body portion near the distal end. The guidewire has a floppy tip distal to the light diffusing element and is rigid and highly torqueable proximal to the diffusing element. The outer diameter of the guidewire is similar to that of standard interventional guidewires such as angioplasty guidewires, i.e. 0.014"-0.038". The light diffusing guidewire has a low profile which enables delivery of illuminating diagnostic or treatment light to the walls of even the most distal, small-diameter vessels.

REFERENCES:
patent: 4860743 (1989-08-01), Abela
patent: 5019075 (1991-05-01), Spears et al.
patent: 5095911 (1992-03-01), Pomeranz
patent: 5109830 (1992-05-01), Cho
patent: 5151096 (1992-09-01), Khoury
patent: 5188634 (1993-02-01), Hussein et al.
patent: 5196005 (1993-03-01), Doiron et al.

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