Mat for pressure measurement and a body information acquisition device
First Claim
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.
1 Assignment
0 Petitions
Accused Products
Abstract
When the distribution of the pressure applied to a mat is measured, a plurality of detection units is established in the air mat and the sensor for measuring the pressure applied to the air mat is needed to be provided for each detection unit. The mat for pressure measurement 2 is arranged the first medium accommodation object 21b on the right side and the second medium accommodation object 22b on the left side. The first connecting pipeline 21a is connected to the first medium accommodation object 21b and the second connecting pipeline 22a is connected to the second medium accommodation object 22b, respectively. Since the internal diameter K4 of the second connecting 22a is set smaller than the internal diameter K2 of the first connecting pipeline 21a and the pipeline length of the second connecting pipeline 22a is set longer than that of the first connecting pipeline 21a in the mat for pressure measurement 2, the pressure loss coefficient of the second connecting pipeline 22a has a greater value than that of the first connecting pipeline 21a.
-
Citations
5 Claims
-
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. - View Dependent Claims (2, 3, 4, 5)
-
Specification