Apparatus for endoscopic examination

Details Apparatus for endoscopic examination Apparatus for endoscopic examination

1977-06-17

1979-12-04

Michell, Robert W.

Surgery

Truss

Perineal

128348, 128DIG9, 138 33, 138103, 138133, 219201, 219522, A61B 106, A61M 2500

Patent

active

041766628

ABSTRACT:
An endoscope is disclosed having a propulsion mechanism and at least one transmitter at the distal end transmitting bursts of energy waves (radio frequency or ultrasonic) for tracking the position of the distal end through the use of two or more transducers on the anterior or lateral surfaces of a patient. The propulsion mechanism may consist of two radially expandable bladders separated by an axially expandable bellows with only the forward bladder attached to the distal end so that by expanding and contracting them in proper sequence, propulsion of the endoscope is achieved. Alternate mechanisms comprise compliant paddles on the distal end directly on an articulated section, or compliant paddles on a rotatable sleeve on the distal end. The endoscope has a sheath which includes material having a sharp melting point slightly above body temperature so that the sheath may be made flexible at selected sections by applying current to separate heating wires in the sections of the sheath.

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patent: 3896793 (1975-07-01), Mitsui et al.
patent: 3948251 (1976-04-01), Hosond
Jacobson, B. Servo Tracks Pills in Human Body, Electronics, Mar. 22, 1963, pp. 58-60.

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