Pulse meter

Abstract

The invention provides a sphygmograph which can be rapidly and highly accurately positioned. The sphygmograph has a sensor unit 1 including a pulse wave sensor and a base 2. The base 2 of the sphygmograph is set to a subject's wrist. In this case, fingers and a detector are inserted from a pulse detecting hole 22 provided at the base 2 to detect the subject's artery, and the base 2 is fixed to the subject's wrist by a belt so that the subject's artery is disposed at the center of the base 2. The unit 1 is set to the base 2 by a clip 13. In this state, the positional relationship between the unit 1 and the artery is detected. If a deviation occurs, the unit 1 is slid so that a mark 14 is moved by 211 of the scale of a predetermined number, matched to an optimum position, and the subject's pulse wave is measured.

Description

technical field [0001] The invention relates to a pulse wave meter, in particular to a pulse wave meter capable of extremely fast and high-precision positioning. Background technique [0002] When the pulse wave of the subject is measured with a sphygmograph, the extrusion pressure of the blood flow from the heart and the reflected pressure from the terminal can be measured. Since the blood vessel aging of the subject can be known by measuring such a pulse wave, the measurement of the pulse wave is very important in order to know the health state of the subject. [0003] Furthermore, in order to accurately obtain the pulse wave of the subject with the sphygmograph, it is indispensable to place a sensor on the artery of the subject with high accuracy. [0004] Therefore, US Pat. No. 5,642,733 discloses a sphygmograph. Its structure is to pre-set a base on the living body so that the sensor can be accurately positioned on the subject's artery, and a sensor frame is installed ...

AI Technical Summary

Problems solved by technology

[0006] However, when using the sphygmograph disclosed in the above-mentioned U.S. Patent No. 5,642,733 to measure the pulse wave of the subject, the relative position of the base and the sensor housing cannot be fine-tuned. When it deviates, it is necessary to reposition the base, which is complicated and time-consuming, and the convenience of the tester is low, and there is a problem of increasing the burden on the testee

[0007] When utilizing the pulse wave detection device disclosed in the above-mentioned Japanese Patent Publication No. 8-2350 or Real Publication No. 4-28562 to measure the pulse wave of the subject, it is impossible to visually detect the pulse wave due to placing the sensor on the subject's artery detected by palpation. As the sensor is placed, there is a high possibility that the center of the sensor will deviate from the artery in the stage of placing the sensor, and there is a problem of poor positioning accuracy in the stage of placing the sensor

Since the positioning is automatically performed by a power generation device such as a motor after placing the sensor, it is expensive and not suitable for miniaturization

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