Patent ID: 6121555
Filing Date: 2000-09-19
Classification: G01G

Abstract:
A sensor for medical monitoring of a fluid in a container coupled to a patient, the sensor comprising:a) an upper hook;b) a lower hook coupled to the upper hook and movable in relation thereto, the lower hood adapted for suspending a fluid container therefrom;c) a cam member fixedly coupled to one of the hooks and movable in relation to the other of the hooks;d) a biasing member coupled between the hooks;e) a cam follower attached to a first switch, the cam follower being movably disposed with respect to the cam member to cause the first switch to be in a first state when the lower hook is unloaded and to be in a second state when the lower hook is sufficiently loaded to overcome the biasing member; andf) an alarm coupled to the first switch and operative to indicate a fluid condition when the switch is in one of the states but not the other.