The operation of a patient's cardiovascular system is analyzed by positioning an inflatable cuff over an extremity of the patient so that a blood vessel in the extremity experiences the cuff pressure and then modifying the pressure in the cuff through a cycle in which the vessel is occluded. A first...http://www.google.com.au/patents/US4206764?utm_source=gb-gplus-sharePatent US4206764 - Method and apparatus for analyzing cardiovascular systems
