Patent ID: 9131873
Filing Date: 2015-09-15
Classification: A61B,G01G

Abstract:
1. A foot pad device worn on the foot of a user for obtaining weight data comprising: a foot pad including a ball region configured to be located under a ball of the foot of the user or a heel region configured to be located under a heel of the foot of the user; a plurality of force sensors that provide force data, wherein at least a portion of the plurality of force sensors is located in the ball region or the heel region of the foot pad; sensor electronics coupled to the plurality of force sensors, wherein the sensor electronics include a flexible circuit with a plurality of force sensor connection paths adapted to transmit force data from the plurality of force sensors, wherein the sensor electronics are configured to condition the force data to be within a conditioned force data range; and a processor configured to calculate a weight value based on the conditioned force data, a gain value, and an offset value, wherein the processor is configured to compare the calculated weight value with an entered patient weight in a first comparison, and compare the calculated weight value to zero in a second comparison, and adjust the gain based on the first comparison and adjust the offset based on the second comparison.