ENDOSCOPE APPARATUS CAPABLE OF BEING SWITCHED TO A MODE IN WHICH A CURVATURE OPERATING LEVER IS RETURNED AND TO A MODE IN WHICH THE CURVATURE OPERATING LEVER IS NOT RETURNED
 Inventors: Akira Suzuki; Hiroki Hibino, both of Hachioji; Yoshikatsu Nagayama, deceased, late of Sagamihara; Akemi Nagayama, heiress; Yuuki Nagayama, heir, both of Kanagawa-ken; Motokazu Nakamura, Hachioji, all of Japan
 Assignee: Olympus Optical Co., Ltd., Tokyo,
 Appl. No.: 400,128
 Filed: Mar. 6,1995
Related U.S. Application Data
 Continuation of Ser. No. 10,744, Jan. 29,1993, abandoned.
 Foreign Application Priority Data
Feb. 25, 1992 [JP] Japan 4-038066
Aug. 6, 1992 [JP] Japan 4-210434
Dec. 8, 1992 [JP] Japan 4-328047
 Int CI.6 A61B 1/005
 U.S. CI 600/150; 600/151; 600/146
 Field of Search 600/117, 118,
600/146, 151, 152,150
 References Cited
U.S. PATENT DOCUMENTS 4,489,304 12/1984 Hayes 74/471 XY X
A curvature section provided in an insertable section is curved in response to a curving instructing signal output by the operation of a curving operating switch. In case the curving operating switch is of a joy stick type having an operating lever, in response to the operation of a switching switch, a mode in which the inclination angle of the operating lever is held and a mode in which the inclination angle of the operating lever is returned to a neutral position in which it is zero will be switched and the curvature section will be of a curvature angle following the inclination angle of the operating lever.
In case the curving operating switch is of a joy pad type comprising a plurality of on/off switches, in response to the operation of the switching switch, the curvature instructing signal will be held or reset.