Endoscope construction with means for controlling rigidity and c

Details Endoscope construction with means for controlling rigidity and c Endoscope construction with means for controlling rigidity and c

1988-10-21

1990-01-16

Grieb, William H.

Surgery

Truss

Perineal

A61B 100

Patent

active

048936138

ABSTRACT:
An improved flexible endoscope of the type which includes a hollow elongate flexible tube having a distal end which is inserted into a body cavity and a proximal end which is external the body. A sensor system extends through the flexible tube from the proximal end to the distal end. The sensor system is capable of transmitting diagnostic information from the distal end to a sensor system at the proximal end. Means for controlling the flexure of each tube comprises at least one longitudinal expandible conduit positioned radially with respect to the center line axis of the segment. In a preferred embodiment a plurality of inflatable and expandible conduits are provided and pressure means is also provided to inflate the conduits to control rigidity or to expand the conduits longitudinally and sequentially in order to vary the curvature of the tube.

REFERENCES:
patent: 2844126 (1958-07-01), Gaylord
patent: 4349014 (1982-09-01), Takamatsu
patent: 4620769 (1986-11-01), Tsuno
patent: 4794912 (1989-01-01), Lia

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