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Gait analysis and fall assessment system

An evaluation system and gait technology, applied in medical science, sensors, diagnostic recording/measurement, etc., can solve problems such as single evaluation method, function change of motor system, lack of fall directional information prediction and evaluation, etc., to achieve simple calculation, Evaluate the effect of the exact method

Active Publication Date: 2018-07-31
CAPITAL UNIVERSITY OF MEDICAL SCIENCES
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 1. Lack of prediction and assessment of fall direction information;
[0004] 2. Fall risk assessment can only be done qualitatively, and the assessment method is single
[0006] 1. Only functional assessment, lack of prediction and assessment of fall direction information;
[0007] 2. It only provides scores for functional test results, and lacks objective gait data and evaluation parameters, such as acceleration data during human walking, left-right consistency, etc.
[0008] 3. The assessment requires specific multidisciplinary professionals and a specific site, which is greatly affected by subjectivity, and the accuracy of fall risk assessment is insufficient
Spasms of the lower limbs will cause changes in the function of the motor system, resulting in abnormal gait, prone to falls, and seriously affecting walking ability

Method used

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Embodiment Construction

[0029] The specific implementation of the product information storage system of the present invention will be further described in detail below in conjunction with the accompanying drawings, but it is not used to limit the protection scope of the present invention.

[0030] The present invention includes a set of human gait test system and test evaluation method, the composition structure of the system is as follows: figure 2 shown. The system hardware consists of image 3 As shown, it includes a computer and a 9-axis inertial sensor (inertial measurement unit), which includes a three-axis accelerometer, a three-axis gyroscope, and a three-axis magnetometer. The measured parameters include three-dimensional linear acceleration, angular velocity and the component of the geomagnetic field vector in the object coordinate system. The sensor is worn on the back of the subject, and the measurement signal is transmitted to the computer through Bluetooth or ZigBee wireless transmis...

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Abstract

The invention discloses a human body gait assessment system, which comprises a nine-axis inertial sensor, a signal transmission unit and an assessment unit, wherein the nine-axis inertial sensor is used for measuring linear acceleration data, angular velocity data and object inclination angle data of a three-dimensional space; the plurality of data is acquired by the inertial sensor by conductingmeasurement at a certain time interval; the signal transmission unit is used for transmitting the plurality of data to the assessment unit; and the assessment unit is in charge of judging pace statesof a human body by calculating accumulated values of data in a left-right direction, so as to measure fall risks, and the assessment unit, via a mode of searching the maximum value in the various processed data, can predict the fall direction; therefore, the system is accurate in assessment mode and simple in calculation; and the system is especially applicable to patients with cerebral palsy.

Description

technical field [0001] The invention relates to the field of human motion detection, in particular to a gait analysis and fall evaluation system. Background technique [0002] The prior art provides a variety of systems and methods for predicting the risk of falls for the elderly. The method used in the Chinese patent application document with application number 201510740004.8 is: detecting and analyzing the pressure information of the soles of the human body, obtaining the gait data of the human body through calculation, and converting the gait The data is compared with the gait data of normal people, so as to obtain the information of fall gait balance and fall risk assessment. The system structure is as follows: figure 1 shown. The specific analysis method is: according to the plantar pressure data and gait data, the trajectory curve of the center of gravity of the human body is compared with the trajectory curve of the center of gravity of the normal person. Big. The ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/11
CPCA61B5/1117A61B5/1121
Inventor 刘庆凯闫松华王启宁
Owner CAPITAL UNIVERSITY OF MEDICAL SCIENCES
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