Direct vision/side vision exchangeable endoscope

Details Direct vision/side vision exchangeable endoscope Direct vision/side vision exchangeable endoscope

1990-11-06

1993-06-01

Millin, V.

Surgery

Truss

Perineal

128 6, A61B 100, A61B 106

Patent

active

052150771

ABSTRACT:
A direct vision/side vision exchangeable endoscope having two stages of small-diameter and large-diameter threads differing in their diameter are formed on the distal end of the examining portion of the endoscope. A threaded portion to be engaged with the small-diameter thread is formed on the inner side of the rear end of an attachment, and flanges are formed in the vicinity of both ends of the attachment, and an anchoring ring having a thread to be engaged with the large-diameter thread, formed on the inner side of the top end thereof, and an anchoring portion for anchoring the flanges, formed on the inner side of the rear end thereof, is freely set between both the flanges of the attachment.

REFERENCES:
patent: 2091794 (1937-08-01), Pester
patent: 3390900 (1968-07-01), McCormick et al.
patent: 4116477 (1978-09-01), Wahoski
patent: 4706653 (1987-11-01), Yamamoto
patent: 4742818 (1988-05-01), Hughes et al.
patent: 4919112 (1990-04-01), Siegmund

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