Surgery – Truss – Perineal
Patent
1979-07-20
1981-07-21
Howell, Kyle L.
Surgery
Truss
Perineal
350 9626, A61B 106
Patent
active
042792479
ABSTRACT:
An endoscope having a plurality of observation optical systems comprises an elongated sheath, a distal end section connected to one end of the sheath, an operation section connected to the other end of the sheath, a plurality of optical fiber bundles extending through the sheath, an ocular section provided at the operation section, an observation optical system selecting section provided between the operation section and the ocular section and including a rotary member which holds the proximal ends of the optical fiber bundles and which is rotated to selectively connected one of the bundles optically to the ocular section, and identification mark elements in the fields of view of the optical fiber bundles. Each mark element lies in the field of view of the ocular section while the corresponding optical fiber bundle is optically connected to the ocular section, thus identifying the observation optical system used.
REFERENCES:
patent: 3525561 (1970-08-01), Takahashi
patent: 3595220 (1971-07-01), Kawahara
patent: 3703169 (1972-11-01), Ouchi
patent: 3730632 (1973-05-01), Chikama
patent: 3817635 (1974-06-01), Kawahara
patent: 3866602 (1975-02-01), Furihata
patent: 3889662 (1975-06-01), Mitsui
patent: 4153333 (1979-05-01), Harada et al.
Howell Kyle L.
Olympus Optical Co,. Ltd.
Rose Arthur S.
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