US Patent 8,758,387
United States Patent and Trademark Office
University of Iowa Research Foundation (Iowa City, IA, US)
A probe including a housing, a rectal muscle air bag, a rectal tube, an anal muscle air bag, and an anal tube is provided. The rectal muscle air bag mounts to the housing a first distance from a non-insertion end. A rectal tube is connected to the rectal muscle air bag at a first end and to a first pressure sensor at a second end. The anal muscle air bag is mounted to the housing a second distance from the non-insertion end. The anal tube is connected to the anal muscle air bag at a first end and to a second pressure sensor at a second end. The first distance is selected to position the rectal muscle air bag adjacent a rectal muscle, and the second distance is selected to position the anal muscle air bag adjacent an anal muscle when the housing is inserted in the rectum.
Rao, Satish Sanku Chander and Kumar, Muralidhar Nukala Sunil Biofeedback training of anal and rectal muscles. US Patent 8,758,387 filed July 12, 2012 and issued June 24, 2014. https://ir.uiowa.edu/patents/620