Endoscope with means for detecting rotation of a distal examinin

Details Endoscope with means for detecting rotation of a distal examinin Endoscope with means for detecting rotation of a distal examinin

1979-04-06

1981-07-07

Rosenberger, R. A.

Optics: measuring and testing

Angle measuring or angular axial alignment

128 4, 350 9626, 356241, 356152, A61B 100

Patent

active

042771684

ABSTRACT:
The present invention discloses an endoscope with means for detecting the direction and angle of rotation of a distal examining end. A guide tube with a mark or a porthole is provided around the distal examining end for a standard of measuring. Said mark or the porthole is counted by a pair of detecting optic bundles and optical detecting means such as, for example a photoelectric element, which are provided at the distal examining end. By these constructions, the relative rotation between the guide tube and the distal examining end is detected. Accordingly, damage to the distal examining end can be prevented.

REFERENCES:
patent: 3533657 (1970-10-01), Da Silva
patent: 3730632 (1973-05-01), Chikama
patent: 3826900 (1974-07-01), Moellering
patent: 4078864 (1978-03-01), Howell
patent: 4103155 (1978-07-01), Clark

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