An optical sensor generates blood pressure data by obtaining two dimensional images of the surface of the patient's body, such as in the vicinity of the radial artery in the wrist area. Blood flow in the patient causes light to be reflected off a flexible reflective surface applied against the patient...http://www.google.fr/patents/US6475153?utm_source=gb-gplus-shareBrevet US6475153 - Method for obtaining blood pressure data from optical sensor
Method for obtaining blood pressure data from optical sensor
