Wrist examination device and method for testing cardiac cycle and respiration rate

A technology of respiratory cycle and detection method, which is applied in the evaluation of respiratory organs, measurement of pulse rate/heart rate, diagnostic recording/measurement, etc., to achieve the effect of easy use, good comfort and low price

Inactive Publication Date: 2006-03-29
吕晓东 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The former method has extremely strict requirements on the location, while the latter method puts pressure on the blood vessels, so it is only suitable for short-term use

Method used

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  • Wrist examination device and method for testing cardiac cycle and respiration rate
  • Wrist examination device and method for testing cardiac cycle and respiration rate
  • Wrist examination device and method for testing cardiac cycle and respiration rate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The principle of wrist heartbeat and respiratory cycle detection method is as follows: figure 1 , the high-sensitivity sheet piezoelectric micro-motion sensor 1 is fixed on the elastic wristband 2 and the wrist is in contact with the skin, and the composite signal of the tiny vibration caused by the beating of the human heart and lung activity on the limb is amplified by the signal of the electronic circuit and filtering 3, data acquisition 4, and data processor 5 to obtain cardiac and respiratory wave signals.

[0021] Such as figure 2 The shown embodiment of the wristwatch device consists of a watch body 6 , a circuit board 7 , a wristband 8 , and a micro-motion sensor 9 . The circuit board 7 is contained in the watch body 6, and the micro-motion sensor 9 is contained on the strap 8.

[0022] A kind of composition of circuit board 7 is as image 3 The signal conditioning part 10 contains signal amplification and filtering circuits, the MCU microcontroller 11 under...

Embodiment 2

[0024] Another composition of the circuit board 7 is as Figure 4 , is a simple implementation. The signal conditioning part 16, the MCU microcontroller 17, and the power supply part 20 are the same as those in Embodiment 1. Other parts are simplified. The recording part adopts the fixed memory 18 to record data, the indicating part 19 is an LED luminous tube, and the external connection port 21 is a data communication interface (connected with a PC) and a battery charging interface.

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Abstract

A method for testing the cardiac rhythm and respiratory rate by wrist includes such steps as fixing a high-sensitivity piezoelectric sensor to an elastic wrist band, wearing it on the human wrist to make said sensor in contact with the skin of wrist, sensing the composite microvibration signals caused by cardiac pulse and respiration, amplifying the signals, filtering, data acquisition, and processing the data by processor. Its wrist watch type tester is also disclosed.

Description

technical field [0001] The invention relates to a detection method for cardiac and respiratory cycles, in particular to a detection method and device for wrist cardiac and respiratory cycles. Background technique [0002] The usual cardiac cycle is obtained by electrocardiogram and pulse wave detection. ECG extraction requires at least two electrodes that are far apart and cannot be performed at the wrist. The pulse wave can be obtained through the infrared sensor, because the infrared sensor senses the change of blood flow, and the placement position has a great influence on the signal extraction, so it is not suitable for long-term use on the wrist and limbs, and the infrared optical device consumes a lot of power. There are two methods of non-invasively extracting pulse waves with pressure sensors. The sensor needs to be placed on the arterial vessel or placed in an inflated pressurized balloon pressed on the wrist (arm). The former method has extremely strict requireme...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/00A61B5/024A61B5/08
Inventor 吕晓东范军郭云葛宏刘威曲昕耿斌张永宝王书明
Owner 吕晓东
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