A therapeutic device may be used in providing physical therapy for a patient's knee by moving the patient's leg through a plurality of cycles of motion in each of a number of treatment sessions. The device includes a "Comfort Zone" range of motion feature which allows an operator to temporarily increase...http://www.google.es/patents/US6267735?utm_source=gb-gplus-sharePatente US6267735 - Continuous passive motion device having a comfort zone feature
Continuous passive motion device having a comfort zone feature
