Surgery – Instruments – Light application
Patent
1993-04-06
1994-08-30
Aschenbrenner, Peter A.
Surgery
Instruments
Light application
128669, 606 19, 606 3, A61B 500
Patent
active
053423526
ABSTRACT:
A technique is disclosed for wound debridement in which a pulsed CO.sub.2 laser beam is caused to impinge upon exposed tissue with individual pulses sufficiently energetic to ablate a thin layer of tissue. Each pulse has a time duration short enough to cause ablation but long enough so that it does not cause atmospheric breakdown. The CO.sub.2 laser, with a wavelength in the far infrared region, is operated to produce a pulsed beam with individual pulses having an energy of about one joule per pulse or greater. The beam is focused to produce a beam diameter with a fluence of approximately ten joules per square centimeter at the tissue to be ablated and with a pulse repetition rate of approximately one hundred pulses per second and a pulse duration between one microsecond and ten microseconds. In operation, the ablation of eschar is achieved over a relatively wide range of angles of incidence without need for change of the beam parameters.
REFERENCES:
patent: 3913582 (1975-10-01), Sharon
patent: 4917083 (1990-04-01), Harrington et al.
patent: 4917084 (1990-04-01), Sinofsky
patent: 5074306 (1991-12-01), Green et al.
patent: 5207671 (1993-05-01), Franken
Use Of A Carbon Dioxide Laser For The Debridement Of Third Degree Burns: Levine et al., Annals of Surgery, vol. 179, No. 2, pp. 246-252, Feb. 1974.
Laser Excision of Acute Third Degree Burns Followed By Immediate Autograft Replacement: An Experimental Study In The Pig, Stellar et al., Journal of Trauma, vol. 13, No. 1, pp. 45--53, Jan., 1973.
Franken Peter A.
Hill Alan E.
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