Constant pressure apparatus of an endoscope

Details Constant pressure apparatus of an endoscope Constant pressure apparatus of an endoscope

1987-12-28

1989-06-06

Grieb, William H.

Surgery

Truss

Perineal

A61B 100

Patent

active

048361879

ABSTRACT:
A constant pressure apparatus of an endoscope includes a gas supplying conduit for cleaning an optical observation system, a sucking conduit for constantly holding the inner pressure of a body, and an insertion port for inserting a device for medical treatment into the body. The constant pressure apparatus comprises a pressure detector disposed in a portion of the gas supplying conduit and detecting the pressure in the gas supplying conduit. The pressure detector is electrically connected to a control device for controlling the inner pressure of the body. A gas supplying device for adjusting the inner pressure of the body is disposed in the insertion port and may comprise a fiber for transmitting laser into which a cooling conduit for receiving carbon dioxide is inserted. Electromagnetic valves are disposed in the gas supplying conduit, the sucking conduit and the gas supplying means, respectively, and are operated by signals from the control device.

REFERENCES:
patent: 4349014 (1982-09-01), Takamatsu

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