A surgical cast venting device to provide effective ventilation of the body part confined within the cast. The device includes a multiple channeled flexible form adjacent the skin that adapt to the contour of the body part to which it is applied. An air flow path is established on the skin with connector...http://www.google.es/patents/US4898160?utm_source=gb-gplus-sharePatente US4898160 - Surgical cast venting device