Contact laser delivery probe

Details Contact laser delivery probe Contact laser delivery probe

1992-01-13

1993-11-02

Shay, David M.

Surgery

Instruments

Light application

606 15, 606 16, A61N 506

Patent

active

052579891

ABSTRACT:
A method and apparatus for minimizing damage to an optical fiber used as part of a laser radiation delivery system are disclosed. The apparatus includes the use of a spacer positioned adjacent the tip of the fiber to minimize the impact on the fiber tip of debris and vapor generated by exposure of a tissue target to high energy radiation. The end of the apparatus is configured to vent debris and vapor from the end of the tip to reduce damage. The fiber tip may also be annealed to enhance its resistance to damage. The method includes the step of spacing the fiber tip at a predetermined distance from the tissue target during exposure of the tissue target to laser radiation, and may include venting the debris created away from the fiber end. The method may further include the step of providing an annealed fiber tip.

REFERENCES:
patent: 3821510 (1974-06-01), Muncheryan
patent: 4266549 (1981-05-01), Kimura
patent: 4503853 (1985-03-01), Ota et al.
patent: 4564011 (1986-01-01), Goldman
patent: 4672969 (1987-06-01), Dew
patent: 4694828 (1987-09-01), Eichenbaum
patent: 4732448 (1988-03-01), Goldenberg
patent: 5026366 (1991-06-01), Lecrone

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