An arm and hand rest device for performing microsurgery, such as an eye operation, on a patient lying on an operating table, the device having a board placed on the operating table beneath the upper body portion of the patient so that the weight of the patient will hold the device firmly in place. Two...http://www.google.de/patents/US4018217?utm_source=gb-gplus-sharePatent US4018217 - Arm and hand rest device for microsurgery
