Patent ID: 8123685

Claim:
A system for monitoring a plurality of physiological parameters of a patient in a bed, the system comprising: a base frame; a patient support; a plurality of sensor units mounted between the base frame and the patient support to support the patient support, each of the sensor units including: a first sensor device which measures a first force component in a first direction, the first sensor device being attached to one of the patient support and the base frame; a rail mounted to the other of the patient support and the base frame; a slide which is supported on the rail and movable relative to the rail, wherein the first sensor device is in contact with the slide; a second sensor device attached adjacent the rail to interact with the slide to measure a second force component in a second direction, the second direction being different from the first direction; and a data device which receives measured force component data from the sensor units and processes the force component data to provide information about the plurality of physiological parameters of the patient.