Apparatus for promoting blood circulation in a body part suffering from a circulation deficiency by inflating and deflating a pressure cuff applied to a patient's limb proximal to the affected body part so that the blood is forced into the affected body part. The apparatus is synchronized with the patient's...http://www.google.co.uk/patents/US4077402?utm_source=gb-gplus-sharePatent US4077402 - Apparatus for promoting blood circulation
