Patent ID: 7658112
Filing Date: 2010-02-09
Classification: A61B

Abstract:
1. A body information acquisition device which acquires a subject's body information comprising: a mat for pressure measurement comprising: a plurality of medium accommodation objects which inside is filled with a pressure transmission medium; and a connecting pipeline provided in the respective medium accommodation objects which lead the pressure inputted into the medium accommodation objects to one detection means to detect the pressure change in one pressure detection unit for the pressure transmission medium and each connecting pipeline has a different size of internal diameter and a different pressure loss coefficient reciprocally; a detection means to detect the pressure change in the pressure detection unit; a measurement means to measure the distribution and the strength of the pressure on the mat for pressure measurement based on the pressure change detected by the detection means; and a body position calculation means to calculate the position or the motion of the subject's body on the mat for pressure measurement based on the measurement result by the measurement means.