Spectral photometer for medical use in determining skin colorati

Details Spectral photometer for medical use in determining skin colorati Spectral photometer for medical use in determining skin colorati

1978-04-10

1980-12-30

Michell, Robert W.

Surgery

Truss

Pad

356 40, 356418, 356419, A61B 502

Patent

active

042417384

ABSTRACT:
A housing contains a light source, a monochromator, a photosensitive unit and an oscilloscope-type display. A flexible bundle of fiber-optic elements extends from within the housing out, and is provided at its outer end with a spacing ring. The spacing ring is placed against a skin surface, holding the ends of the fiber-optical bundle properly spaced and oriented relative to the skin surface. At the other end of the bundle, the bundle is subdivided into one branch which receives light from the source, and another branch which emits light refleced from the skin surface into the monochromator. The monochromator projects the spectrum of the skin-reflected light onto the photosensitive unit. The output signal of the photosensitive unit, in a sequential and periodic manner, contains information concerning successive spectral components of the skin-reflected light. The sweep of the display is synchronized with this periodic sequence, so as to display a spectral analysis of the skin-reflected light.

REFERENCES:
patent: 2240722 (1941-05-01), Snow
patent: 3460892 (1969-08-01), Dolin
patent: 3700331 (1972-10-01), White
patent: 3740155 (1973-06-01), Keller et al.
patent: 3825342 (1974-07-01), Lubbers et al.
patent: 3869212 (1975-03-01), Burcher et al.
patent: 4003707 (1977-01-01), Lubbers et al.
patent: 4029085 (1977-06-01), DeWitt et al.
patent: 4029419 (1977-06-01), Schumann, Jr. et al.
patent: 4050450 (1977-09-01), Polanyi et al.
patent: 4125329 (1978-11-01), French et al.
patent: 4146332 (1979-03-01), Moore

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