Surgery – Diagnostic testing – Detecting nuclear – electromagnetic – or ultrasonic radiation
Patent
1996-04-10
1998-09-15
Leubecker, John P.
Surgery
Diagnostic testing
Detecting nuclear, electromagnetic, or ultrasonic radiation
600478, 600595, A61B 511
Patent
active
058072640
ABSTRACT:
An endoscope apparatus for detecting cilia motion while examining the interior of a body. The endoscope apparatus including a long slender tube having a probe tip at one end, which is inserted into the body to be examined. First, second and third optical fibers extend through the tube to the probe tip. A source of light at the opposite end of the tube aligned with the first optical fiber for transmitting light into the body via the probe tip. Light detectors are at the opposite end of the tube, one in alignment with each of the second and third optical fibers, for receiving light transmitted therethrough back-scattered from the interior of the body. A differential measuring element for differentially measuring the outputs of the two detectors such as to substantially cancel out artifacts and to increase the signal-to-noise ratio. The differential measuring element operates in a frequency range of 0.5-30 Hz in order to detect the range of frequencies of typical cilia beats.
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