Liquid drainage system with light emitters and detectors

Details Liquid drainage system with light emitters and detectors Liquid drainage system with light emitters and detectors

1987-02-11

1988-05-24

Thaler, Michael H.

Surgery

Truss

Pad

604260, 604323, 73293, 250577, A61M 100

Patent

active

047459298

ABSTRACT:
A liquid drainage system comprising, a container having a cavity to receive the liquid. The system has an array of a plurality of associated pairs of light emitters and light detectors disposed generally vertically along the container. Each of the associated pairs of emitters and detectors are changeable between a first state with the light from the emitters impinging upon the associated detectors, and a second state with the light from the emitters passing away from the associated detectors dependent upon the presence of liquid in the container between the emitters and detectors.

REFERENCES:
patent: 3120125 (1964-02-01), Vasel
patent: 4193004 (1980-03-01), Cobdell et al.
patent: 4343316 (1982-08-01), Jespersen
patent: 4355238 (1982-10-01), Ruell
patent: 4448207 (1984-05-01), Parrish
patent: 4450722 (1984-05-01), Keys et al.

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