Apparatus for applying intense light radiation to a limited area

Details Apparatus for applying intense light radiation to a limited area Apparatus for applying intense light radiation to a limited area

1977-12-09

1980-11-11

Bartis, A.

Electric heating

Heating devices

Combined with container, enclosure, or support for material...

1283031, 128397, 128398, 219 85BA, 219121L, 219347, 219349, 250504R, 350 961, 350 9634, 362 32, 362294, 362373, 362804, H05B 302, A61N 506, F21V 900

Patent

active

042334934

ABSTRACT:
The apparatus, used for example to stop bleeding by heat coagulation during surgery, comprises a high power incandescent lamp emitting intense radiation high in infrared content enclosed in a housing having a light guide means, such as a solid light pipe, providing a light exit surface. The exit surface of the light guide means is provided with a self supporting stiff and non-pliable polymeric application element having a thickness of at least about 0.1 millimeters or a polymeric coating having the same thickness and physical characteristics, permanently applied to the exit surface or to a transparent end plate positioned adjacent to and protecting said exit surface. The application element or coating, respectively, is made of a polymer such as Teflon, Teflon PFA, Teflon FEP and Teflon PTFE, etc. and is substantially transparent to the radiation emitted by the lamp. The housing is made of a synthetic polymer material loaded with a coloring agent absorbing blue and green light while transmitting infrared radiation, whereby the glare from the lamp is eliminated and the housing is kept from overheating.

REFERENCES:
patent: 2466430 (1949-05-01), Hutchison
patent: 3455622 (1969-07-01), Cooper
patent: 3467098 (1969-09-01), Ayres
patent: 3520055 (1970-07-01), Jannett
patent: 3529117 (1970-09-01), Costello
patent: 3621198 (1971-11-01), Herbrich
patent: 3723697 (1973-03-01), King
patent: 3809072 (1974-05-01), Ersek et al.
patent: 3848587 (1974-11-01), McDonald
patent: 3995934 (1976-12-01), Nath
patent: 4009382 (1977-02-01), Nath

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