ACCESS DISCONNECTION METHOD USING OPTICAL AND OTHER SENSORS

摘要

A method for detecting movement or disconnection of a needle at an access site of a patient comprising: sensing for a presence of blood at the access site while a medical procedure is performed on the patient; separately sensing for a movement of (i) the needle or (ii) tubing connected to the needle; and sending a signal indicating movement or disconnection of the needle if one of (a) the presence of blood is sensed or (b) movement is sensed under (i) or (ii).