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A STEERABLE FIBEROPTIC HYSTEROSCOPE

From the Medical Engineering Research Division, Illinois Institute of Technology Research Institute and the Department of Obstetrics and Gynecology, Rush Medical College, Chicago, Illinois.

As part of a program to develop a simple outpatient female sterilization technic which is safe and effective and does not involve abdominal surgery, a prototype steerable fiberoptic hysteroscope for diagnostic and therapeutic application has been developed. The instrument has a fiberoptic imaging system, a fiberoptic light source for illuminating the interior of the uterus, and three separate channels: 1) fluid inlet and 2) fluid outlet channels to facilitate flushing and expansion of the uterine cavity and 3) a 2.1-mm inside diameter channel which can be used for biopsy or precise insertion of tubal occlusive devices or technics. The instrument was shown to be safe and effective in a series of baboon experiments and in a series of extirpated human uteri experiments. Studies using human patient volunteers have begun. An example of a typical human uterotubal junction is presented.