04273111 is referenced by 164 patents and cites 8 patents.

An endoscope which comprises a distal end portion (14) containing an observation optical system, a flexible tube (10), and a freely bendable section (12). In the endoscope a plurality of supersonic transducers (20) are spatially arranged on the peripheral wall of the distal end portion, and a bend angle control device (100) is further provided which controls the angle through which the freely bendable section is to be bent in accordance with output data from the plural supersonic transducers in order to direct the distal end portion to the substantial center of the cross section of, for example, the large intestine. The distal end portion is automatically directed to the substantial center of the large intestine in order to prevent the distal end portion from forcefully pressing the inner wall of the large intestine.

Title
Endoscope with bend angle control
Application Number
6/101076
Publication Number
4273111
Application Date
December 7, 1979
Publication Date
June 16, 1981
Inventor
Takashi Tsukaya
Hachioji
JP
Assignee
Olympus Optical
JP
IPC
A61M 25/00
A61B 1/06
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