Cleaning device for an observation window of an endoscope

Details Cleaning device for an observation window of an endoscope Cleaning device for an observation window of an endoscope

1979-06-22

1981-08-04

Michell, Robert W.

Surgery

Truss

Perineal

1525002, 350 63, 134104, 134113, A61B 106

Patent

active

042816467

ABSTRACT:
A cleaning device comprises a fluid passage extending through the sheath of a forward view type endoscope and having one end located in the operation section of the endoscope and the other end located in the distal end section of the endoscope; a pump for supplying a fluid through the fluid passage from the operation section; a nozzle disposed in the distal end portion and communicating at its proximal end with said other end of the fluid passage; a reciprocating device for projecting the distal end portion of the nozzle from the distal end of the distal end section and retracting the nozzle into the distal end section; and a nozzle opening which is directed to an observation window provided on the distal end when the nozzle is projected from the distal end and which is closed by the distal end section when the nozzle is retracted in the distal end section.

REFERENCES:
patent: 2243285 (1941-05-01), Pope
patent: 3117727 (1964-01-01), Pollock et al.
patent: 3903877 (1975-09-01), Teraba
patent: 4204528 (1980-05-01), Termanini

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