A rectal probe comprising a catheter having a longitudinal axis around which is mounted an inflatable, low pressure, compliant balloon having a temperature element associated with the wall thereof, means for holding the probe at a proper position within a patient's rectum and means for inflating the...http://www.google.es/patents/US5335669?utm_source=gb-gplus-sharePatente US5335669 - Rectal probe with temperature sensor
