Endoscope having a controllable distal end piece

Details Endoscope having a controllable distal end piece Endoscope having a controllable distal end piece

1992-11-25

1994-04-05

Apley, Richard J.

Surgery

Truss

Perineal

A61B 106

Patent

active

052995623

ABSTRACT:
An endoscope instrument shaft is provided with a bendable distal end piece, the position of which relative to the instrument shaft can be altered by means of at least one tension wire which is actuable proximally of the endoscope and is guided through a guide tube which is fixed at both ends. That side of the end piece, which side has the larger radius of curvature when the end piece is bent is constructed as a return spring and the side of the end piece having the smaller radius of curvature when the end piece is bent is pliable to facilitate bending of the end piece.

REFERENCES:
patent: 4273128 (1981-06-01), Lary
patent: 4586923 (1986-05-01), Gould et al.
patent: 4779611 (1988-10-01), Grooters et al.
patent: 4911148 (1990-03-01), Sosnowski et al.
patent: 5058567 (1991-10-01), Takahashi et al.
patent: 5152277 (1992-10-01), Honda et al.
patent: 5190540 (1993-03-01), Lee

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