Thumb ring for an endoscopic apparatus

Details Thumb ring for an endoscopic apparatus Thumb ring for an endoscopic apparatus

1996-02-27

1997-04-08

Donnelly, Jerome

Surgery

Endoscope

With tool carried on endoscope or auxillary channel therefore

A61B 131

Patent

active

056182589

ABSTRACT:
A thumb ring for an endoscopic instrument is rotatably mounted at an affixation site to be rotatable about an axis parallel to the instrument longitudinal axis. A thumb insertion aperture has a concave rest surface in the ring opposite the affixation site. The rest surface is substantially shaped like a cylinder segment of which the axis, as seen in the direction of thumb insertion, forms an acute angle with the ring axis.

REFERENCES:
patent: 25140 (1859-07-01), Roome
patent: 2669992 (1954-02-01), Curutchet
patent: 2669993 (1954-02-01), Curutchet
patent: 3727605 (1973-04-01), Klein
patent: 4137920 (1979-02-01), Bonnet
patent: 4250873 (1981-02-01), Bonnet
patent: 5112329 (1992-05-01), Storz
patent: 5423795 (1995-06-01), Eckert et al.

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