Patent ID: 7947003

Claim:
A pressurized medical device for a limb of a patient comprising: a. an inflatable sleeve arranged to surround the limb and exert pressure on the limb, said sleeve comprising one or more individually inflatable cells wherein each cell has an associated pressure sensor arranged to determine the pressure exerted by the cell; b. a fluid connector comprising a conduit attached to the sleeve and arranged to deliver fluid to the sleeve; c. detection means arranged to detect malfunctioning of a pressure sensor, the detection means comprising a reference pressure sensor arranged to independently measure the pressure exerted by the sleeve on the limb of the patient; and d. a control system arranged to control flow of fluid in the device to reduce the exerted pressure to substantially zero if a pressure sensor detects a pressure exceeding a first predefined amount, and to reduce the exerted pressure to substantially zero if the reference pressure sensor detects a pressure exceeding a second predefined amount, said second predefined amount being greater than the first predefined amount.