Endoscope with means for detecting rotation of a distal examining end
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United States of America Patent
Stats
-
Jul 7, 1981
Grant Date -
N/A
app pub date -
Apr 6, 1979
filing date -
Apr 20, 1978
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
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Family
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