Endoscope

Details Endoscope Endoscope

1987-06-17

1988-07-19

Grieb, William H.

Surgery

Truss

Perineal

358 98, A61B 104

Patent

active

047578050

ABSTRACT:
An endoscope according to the present invention comprises an insertion section which as a distal structure. An objective optical system is disposed in the distal structure so as to be substantially parallel to the longitudinal axis thereof. A solid-state image sensing device, which has a light receiving surface with an image area therein, is disposed in the distal structure, so as to be substantially parallel to a plane which contains the longitudinal axis of the distal structure. An optical element is attached to an end portion of the objective optical system, whereby the optical path of a light incident on the objective optical system is bent substantially at right angles, so that the light is guided to the light receiving surface of the image sensing device. The endoscope further comprises a forceps channel having one end attached to the distal structure. The longitudinal axis of the forceps channel is situated on a plane which contains the longitudinal axis of the objective optical system and extends substantially parallel to the light receiving surface of the image sensing device. Thus, the distal structure of the insertion section can be made thinner.

REFERENCES:
patent: 4573450 (1986-03-01), Arakawa
patent: 4622954 (1986-11-01), Arakawa et al.
patent: 4641635 (1987-02-01), Yabe
patent: 4646721 (1987-03-01), Arakawa
patent: 4646723 (1987-03-01), Arakawa
patent: 4667656 (1987-05-01), Yabe
patent: 4682219 (1987-07-01), Arakawa
patent: 4692608 (1987-09-01), Cooper et al.
patent: 4697210 (1987-09-01), Toyota et al.

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