Title:
ENDOSCOPE
Document Type and Number:
Japanese Patent JPH01229218
Kind Code:
A
Abstract:
PURPOSE:To reduce the insertion resistance and to use a pressing-in force efficiently by providing a nozzle nearby the tip of a long-sized insertion part, injecting liquid, floating the tip part of the insertion part with its thrust, and repeating the floating and landing. CONSTITUTION:When the endoscope 1 is used and its long-sized insertion part 2 is pressed and inserted into an object of inspection, the operation switch 15 of an operation part 3 is operated to inject the liquid from the nozzle 12 intermittently. The nearby tip part of the insertion part 2 floats intermittently by receiving the thrust by the jet injection and the floating and landing are repeated. This motion uniform the meandering of the insertion part 2, which runs in the insertion space almost straight at the shortest distance. The pressing-in force from a hand side is transmitted to the tip side without loss and the insertion part 2 is inserted to an inner part while the insertion resistance is reduced.
Inventors:
SHISHIDO YOSHIO
Application Number:
JP5376088A
Publication Date:
September 12, 1989
Filing Date:
March 09, 1988
Export Citation:
Assignee:
OLYMPUS OPTICAL CO
International Classes:
G02B23/24; A61B1/00; (IPC1-7): A61B1/00; G02B23/24
Attorney, Agent or Firm:
Atsushi Tsuboi (2 outside)
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