Suction device for an endoscope

Details Suction device for an endoscope Suction device for an endoscope

1984-12-28

1986-01-07

Coven, Edward M.

Surgery

Truss

Perineal

A61B 100

Patent

active

045628300

ABSTRACT:
A suction device comprises a suction changeover valve provided to a control section of an endoscope and including a cylinder with an opening at one end and a closed wall at the other end, and a piston held in the cylinder in a state movable therethrough and removable through the opening of the cylinder, a first suction tube section formed in the insertion section in a state communicable with the cylinder through the closed wall; and a second tube section formed in a cord of the endoscope in a state communicable with the cylinder through the closed wall. An urging member is projectively provided to the control section, shaped like a cup to cover the opening of the cylinder, and engaged with one end of the piston to elastically hold the piston in the first position.

REFERENCES:
patent: 2657563 (1953-11-01), Burchett
patent: 3726272 (1973-04-01), Fukami et al.
patent: 3958566 (1976-05-01), Furihata
patent: 4270525 (1981-06-01), Furihata
patent: 4325362 (1983-04-01), Ouchi et al.

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