Endoscope apparatus and air-/liquid-supply device therefor

Details Endoscope apparatus and air-/liquid-supply device therefor Endoscope apparatus and air-/liquid-supply device therefor

1987-06-02

1988-08-02

Grieb, William H.

Surgery

Truss

Perineal

A61B 112

Patent

active

047608382

ABSTRACT:
An endoscope apparatus includes an endoscope body and an air-/liquid-supply device connected thereto. Provided at the distal end of an insertion section of the body are an observation window and a nozzle directed toward the window. Air and liquid supply pipes extend from the nozzle, through the endoscope body. The supply device has a tank for storing water therein. The inside space of the tank is divided by a partition plate into a first chamber on the water side and a second chamber. Compressed air supplied from a first pump to the inside space is supplied to the air supply pipe through a first supply pipe, and compresses the water in the tank, thereby supplying the water to the liquid supply pipe through a second pipe. Air having a pressure higher than that of the first pump is supplied from a second pump to the second chamber. The high-pressure air is prevented from flowing into the first chamber, and is immediately supplied to the air supply pipe.

REFERENCES:
patent: 4261343 (1981-04-01), Ouchi et al.
patent: 4325362 (1982-04-01), Ouchi et al.
patent: 4402310 (1983-09-01), Kimura
patent: 4552130 (1985-11-01), Kinoshita

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