Pulsation Detector

• US 20140378780A1
• Filed: 06/19/2014
• Published: 12/25/2014
• Est. Priority Date: 06/21/2013
• Status: Active Grant

• Current Assignee: Takunori Shimazaki
• Original Assignee: Synthesis Corp. (Fujioka Family)
• Inventors: SHIMAZAKI, Takunori, OKUHATA, Hiroyuki
• Granted Patent: US 10,039,458 B2
• Time in Patent Office: Days
• US Class Current: 600/301
• CPC Class Codes: A61B 5/02427 Details of sensor
• CPC Class Codes: A61B 5/02433 for infrared radiation
• CPC Class Codes: A61B 5/6831 Straps, bands or harnesses
• CPC Class Codes: A61B 5/721 using a separate sensor to detect motion or using motion information derived from signals other than the physiological signal to be measured

Abstract

Disclosed is a pulsation detection system 1 for obtaining the accurate pulsation information of which a noise of a body motion is removed. The system 1 comprises a beat detector 3 obtaining a pulse wave information and body motion information containing a body movement noise, and a pulsation detector 4 outputting a pulsation information of which the noise of the body motion is removed from pulse wave information. The beat detector 3 comprises a pulse wave measuring device 31, and a body motion measuring device 32 comprising a light source irradiating and a photodetector for detecting a reflected light from the skin, arranged at a position away from the skin. The pulsation detector 4 comprises a receiver 44 for receiving the pulse wave information and the body motion information, and a body motion remover 45 removing the noise so as to output an accurate pulsation information to the output part.

Claims

1. A pulsation detection system comprising,

a beat detector for obtaining (i) a pulse wave information containing a noise generated by a body motion and (ii) a body motion information, from a living body in physical exercise movement, and

a pulsation detector for detecting a pulsation information which is removed the noise of the body motion from the pulse wave information based on the body motion information and then outputting the detected pulsation information to an output part, and wherein

the beat detector comprises,

(a) a pulse wave measuring device for detecting the pulse wave information,

(b) a body motion measuring device comprising a light source and a photodetector, wherein the light source irradiates light to a skin of a living body away from the skin so as to vary an amount of a reflected light in response to a positional change of body surface due to the body motion, and wherein the photodetector detects a reflected light from the skin, synchronizing with the pulse wave information, and then outputs a body motion information defined by the amount of the reflected light,

(c) a transmitter for transmitting the pulse wave information and the body motion information to the pulsation detector, and

(d) a mounting tool for mounting the pulse wave measuring device, the body motion measuring device, and the transmitter, to a surface of the living body, and wherein

the pulsation detector comprises,

a receiver for receiving the pulse wave information and body motion information which are transmitted by the transmitter, and

a body motion remover for removing the noise to detect the pulsation information from the received pulse wave information and body motion information, and then outputting the pulsation information to the output port.

2. The pulsation detection system according to claim 1, the transmitter and the receiver is transceiver transmitting the information by radio signals.

3. The pulsation detection system according to claim 2, the transmitter comprises,

a compression unit performing compression encoding onto the body motion information on the basis of a difference between the body motion information and the pulse wave information,

a multiplexer generating a series of packet data by multiplexing the pulse wave information and the compression code, and

a transceiver transmitting the packet data, and wherein

the receiver comprises,

a transceiver receiving the packet data,

a demultiplexer demultiplexing the received packet data and then outputting separated datum of the pulse wave information and the compression code, and

a decoder outputting the body motion information decompressed from the pulse wave information and the compression code, and wherein

the pulse wave information outputted from the demultiplexer and the body motion information outputted from the decoder, are outputted to the body motion remover.

4. The pulsation detection system according to claim 2, the pulse wave measuring device, the body motion measuring device and the transmitter of the beat detector are put into one case, which is attached to the living body in physical exercise movement by a belt or an adhesion attachment.

5. The pulsation detection system according to claim 3, the pulse wave measuring device, the body motion measuring device and the transmitter of the beat detector are put into one case, which is attached to the living body in physical exercise movement by a belt or an adhesion attachment.

6. The pulsation detection system according to claim 3, the pulsation detection system comprises several beat detectors and one pulsation detector having the output part, wherein the pulsation detector receives the packet data from the beat detectors in order, and thereby detects the pulsation information from the packet data to carry out a list output of the detected pulsation information to the output part.

7. The pulsation detection system according to claim 4, the pulsation detection system comprises several beat detectors and one pulsation detector having the output part, wherein the pulsation detector receives the packet data from the beat detectors in order, and thereby detects the pulsation information from the packet data to carry out a list output of the detected pulsation information to the output part.

8. The pulsation detection system according to claim 5, the pulsation detection system comprises several beat detectors and one pulsation detector having the output part, wherein the pulsation detector receives the packet data from the beat detectors in order, and thereby detects the pulsation information from the packet data to carry out a list output of the detected pulsation information to the output part.

9. The pulsation detection system according to claim 3, the transceiver of the beat detector is connected with a monitor monitoring the pulsation as the output part, and the body motion remover of the pulsation detector makes the monitor display the pulsation information via both of the transceiver of the pulsation detector and the transceiver of the beat detector.

10. The pulsation detection system according to claim 4, the transceiver of the beat detector is connected with a monitor monitoring the pulsation as the output part, and the body motion remover of the pulsation detector makes the monitor display the pulsation information via both of the transceiver of the pulsation detector and the transceiver of the beat detector.

11. The pulsation detection system according to claim 5, the transceiver of the beat detector is connected with a monitor monitoring the pulsation as the output part, and the body motion remover of the pulsation detector makes the monitor display the pulsation information via both of the transceiver of the pulsation detector and the transceiver of the beat detector.