WO2022233138A1 - 一种步态分析系统 - Google Patents
一种步态分析系统 Download PDFInfo
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- WO2022233138A1 WO2022233138A1 PCT/CN2021/137704 CN2021137704W WO2022233138A1 WO 2022233138 A1 WO2022233138 A1 WO 2022233138A1 CN 2021137704 W CN2021137704 W CN 2021137704W WO 2022233138 A1 WO2022233138 A1 WO 2022233138A1
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- knee joint
- detection device
- analysis system
- gait analysis
- plantar pressure
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/103—Measuring devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
- A61B5/11—Measuring movement of the entire body or parts thereof, e.g. head or hand tremor or mobility of a limb
- A61B5/112—Gait analysis
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/0002—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network
- A61B5/0004—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network characterised by the type of physiological signal transmitted
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/103—Measuring devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
- A61B5/1036—Measuring load distribution, e.g. podologic studies
- A61B5/1038—Measuring plantar pressure during gait
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/103—Measuring devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
- A61B5/11—Measuring movement of the entire body or parts thereof, e.g. head or hand tremor or mobility of a limb
- A61B5/1118—Determining activity level
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
- A61B5/6802—Sensor mounted on worn items
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
- A61B5/6813—Specially adapted to be attached to a specific body part
- A61B5/6828—Leg
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
- A61B5/683—Means for maintaining contact with the body
- A61B5/6831—Straps, bands or harnesses
Definitions
- the present application relates to the technical field of sensor detection, and in particular, to a gait analysis system.
- gait motion detection is mostly based on image processing detection methods, which have a series of shortcomings such as low accuracy and inability to three-dimensional detection.
- traditional gait detection analyzers such as step-type gait analyzers, are usually extremely expensive and immobile, and cannot perform long-term monitoring and diagnosis of the patient's gait.
- Existing portable devices have few types of gait detection data, and the accuracy is low. The data is not comprehensive enough, and cannot be modified for specific populations or diseases, and the detection and diagnosis of gait is low in daily life.
- Some scholars have proposed a gait detection method based on electrical signal sensors.
- most of the current methods of gait detection and determination using electrical signal sensors use a single sensor or a single accelerometer on the sole of the foot, and due to the complexity of the human gait in the daily complex environment, the human body is walking in the process.
- the difference is that only relying on a single sensor cannot be accurately and reliably determined, so that the stability and accuracy of the detection results detected by a single sensor are insufficient, and the extracted gait information is not comprehensive.
- the existing sensor data transmission method adopts wired transmission, and the test area is limited by the line length.
- the main technical problem to be solved by the present application is to provide a gait analysis system, which can simplify the wiring structure of the gait analysis system and reduce the power consumption and cost of the gait analysis system.
- the gait analysis system includes: a lower limb detection device, which is fixed on the lower limbs of the human body and used for acquiring knee joint motion information, and the lower limb detection device includes a first zigbee communication module , which is used to send out the knee joint motion information.
- the sole detection device is fixed on the sole of the human body, and is used for acquiring the sole pressure information.
- the sole detection device includes a second zigbee communication module, which is used for sending the sole pressure information.
- the processing device is used for acquiring knee joint motion information and plantar pressure information, and performing gait analysis on the human body according to the knee joint motion information and the plantar pressure information.
- the knee joint motion information includes the angle and acceleration of the knee joint.
- the lower limb detection device includes: a first inertial sensor for collecting the angle and acceleration of the thigh.
- the second inertial sensor is used to acquire the angle and acceleration of the lower leg.
- the first single-chip microcomputer is connected to the first inertial sensor, the second inertial sensor and the first ZigBee communication module, and is used to calculate the relative acceleration and relative angle of the knee joint based on the angle and acceleration of the thigh and the angle and acceleration of the calf, and pass the first A ZigBee communication module is sent out.
- the first microcontroller is used to calculate the difference between the angle of the thigh and the angle of the calf to obtain the relative angle of the knee joint, and to calculate the difference between the acceleration of the thigh and the acceleration of the calf to obtain the relative acceleration of the knee joint.
- the lower limb detection device includes: a first box body for placing the first inertial sensor, the first single chip microcomputer and the first ZigBee communication module, and the first box body is arranged on the side of the thigh close to the knee joint.
- the second box body is used for placing the second inertial sensor, and the second box body is arranged on the side of the lower leg close to the knee joint.
- the inertial sensor is a nine-axis sensor.
- the plantar detection device includes: at least one plantar pressure sensor connected to the second zigbee communication module for collecting plantar pressure information.
- At least one single-chip microcomputer is connected to at least one plantar pressure sensor and a second zigbee communication module, used for receiving plantar pressure information to calculate a plantar pressure value, and sending the plantar pressure value through the second zigbee communication module.
- the sole detection device includes three sole pressure sensors, and the three sole pressure sensors are all connected to the second zigbee communication module.
- the three plantar pressure sensors are respectively set corresponding to the two sides of the forefoot and the heel, and are respectively used to sense pressure signals on both sides of the forefoot and the heel.
- the plantar pressure sensor is a film pressure sensor.
- the lower limb detection device 110 includes at least one inertial sensor (not shown in the figure), which is connected to the first ZigBee communication module 111 and used to collect the angle and acceleration of the knee joint.
- the gyroscope is a device used to measure the angle and maintain the direction. In games such as flying games, sports games and first-person shooting games, it can completely monitor the displacement of the player's hand, so as to achieve various game operation effects.
- the picture below is a basic mechanical gyroscope model.
- the golden rotor in the middle is not affected by inertia during the movement of the entire instrument, while the three surrounding "steel rings" will change due to the change of attitude of the equipment. Through this to detect the current rotation state of the device.
- the electronic compass uses acceleration sensors and gyroscopes to basically describe the complete motion state of the device.
- the inventor of the present application has found through long-term research that the existing equipment for sensing knee joint motion information usually uses a bending sensor to monitor the angle information of the knee joint.
- a bending sensor to monitor the angle information of the knee joint.
- bandages Such as bandages
- the bending sensor lacks acceleration monitoring and cannot build a complete gait model, thus affecting the patient's experience and even the recovery effect.
- FIG. 3 is a schematic diagram of wearing the lower limb detection device.
- the lower limb detection device 110 further includes a first box body 115 and a second box body 116 .
- the first box body 115 is used for placing the first inertial sensor 112, the first single-chip microcomputer 114, the first ZigBee communication module 111, and power supply devices such as batteries (not shown), and the first box body 115 is arranged on the thigh near the knee joint side.
- the second box body 116 is used for placing the second inertial sensor 113, and the second box body 116 is disposed on the side of the lower leg close to the knee joint.
- the first box body 115 and the second box body 116 are provided with straps, and the straps can be provided with buckles, and the user wears the lower limb detection device to bind the first box body 115 through the straps.
- the strap is fixed on the side of the thigh close to the knee joint
- the second box 116 is fixed on the side of the calf close to the knee joint by a strap and fixed by a buckle, and the tightness can be adjusted through the buckle.
- the first box body 115 can be provided with an unlocked spring button, the lower limb detection device 110 automatically presses the switch button (ie, the unlocked spring button) when it is worn, the lower limb detection device 110 is turned on, the first inertial sensor 112 and the second inertial sensor 113 Start to collect the angle and acceleration information of the user's thigh and the user's calf in real time, respectively.
- the switch button ie, the unlocked spring button
- the plantar detection device 120 includes at least one plantar pressure sensor (not shown) and at least one single chip (not shown). Wherein, at least one plantar pressure sensor is connected to the second zigbee communication module 121 for collecting plantar pressure information. At least one single chip microcomputer is connected to at least one plantar pressure sensor and the second zigbee communication module 121 for receiving plantar pressure information to calculate the plantar pressure value, and sending the plantar pressure value through the second zigbee communication module 121 .
- FIG. 5 is a schematic top view of an embodiment of the arrangement positions of the first plantar pressure sensor, the second plantar pressure sensor and the third plantar pressure sensor
- FIG. 6 is a first foot pressure sensor.
- the three plantar pressure sensors correspond to the two sides of the forefoot respectively.
- the heel is set and used to sense the pressure signals on both sides of the forefoot and the heel respectively.
- the first plantar pressure sensor 122, the second plantar pressure sensor 123 and the third plantar pressure sensor 124 are film pressure sensors or flexible film pressure sensors, wherein the range of the flexible film pressure sensor is 50kg.
- the first plantar pressure sensor 122, the second plantar pressure sensor 123, and the third plantar pressure sensor 124 may further include a signal amplification processing circuit and/or a filtering circuit, etc., so that the collected plantar pressure signal is more accurate. .
- the sole detection device is represented as a sole detection shoe, and the user wears or takes off the sole detection device 120 by putting on or taking off the sole detection shoe.
- at least one plantar pressure sensor may be disposed on the sole near the sole of the foot.
- the sole detection shoe includes three plantar pressure sensors, they are respectively disposed on the sole near the user's forefoot on both sides and at the heel, respectively.
- at least one sole pressure sensor is sealed with sole glue, so as to achieve the purpose of waterproof and anti-abrasion, and does not affect the normal walking experience of the user.
- the processing device 130 may be a host computer with data processing capability, such as a mobile phone, a computer, a tablet, and a server.
- a ZigBee communication module needs to be set.
- the processing device 130 may include a display module (not shown) for displaying the obtained conclusion on the display panel for the user to view after the gait analysis is performed on the user.
- FIG. 7 is a schematic structural diagram of another embodiment of the gait analysis system provided by the present application.
- the gait analysis system 100 includes a lower limb detection device 110, a sole detection device 120, a data The transmission device 140 and the processing device 130 .
- the lower limb detection device 110 is fixed on the lower limb of the human body for acquiring knee joint motion information
- the lower limb detection device 110 includes a first zigbee communication module 111 for sending the knee joint motion information.
- the sole detection device 120 is fixed on the sole of the human body, and is used to obtain the sole pressure information.
- the sole detection device includes a second zigbee communication module 121, which is used to send the sole pressure information.
- the data transmission device 140 is used to acquire the knee joint motion information and the plantar pressure information, and send the knee joint motion information and the plantar pressure information.
- the data transmission device 140 includes a third zigbee communication module 141 .
- the processing device 130 is configured to perform gait analysis on the human body according to the knee joint motion information and the plantar pressure information.
- the gait analysis system provided in this embodiment is provided with a data transmission device 140 , and the data transmission device 140 serves as a hub for data transmission from the lower limb detection device 110 , the sole detection device 120 and the processing device 130 , that is, for acquiring the lower limb detection device 110 and the knee joint motion information and the plantar pressure information acquired by the plantar detection device 120 , and send the knee joint motion information and the plantar pressure information to the processing device 130 .
- the gait analysis system 100 provided in this embodiment can have a wider scope of application.
- the lower extremity rehabilitation software of the Chinese Academy of Sciences can be installed on the processing device 130.
- the lower extremity rehabilitation software will firstly display the relative angle and acceleration value of the user's knee joint, secondly display the value of the plantar pressure, and finally perform background calculation on these values. Fit the gait model and display the user's real-time walking gait model.
- the lower limb rehabilitation software sets the gait evaluation threshold. Once the gait condition is worse, it will send a notification to guide doctors or other guardians to analyze their gait characteristics and guide rehabilitation. .
- the lower limb rehabilitation software can also upload the user's gait data to a dedicated rehabilitation system server located in Shenzhen Advanced Institute of Chinese Academy of Sciences, where the gait features of multiple users will be stored, a gait feature database will be established, and The lower limb rehabilitation map is generated based on the good, moderate, and regional distribution conditions for reference.
- managers can understand the current rehabilitation status by viewing the user's files (including the lower limb rehabilitation process, user information, etc.), and achieve trend analysis-oriented groups. Management, big data analysis, as well as personal-oriented file management, rehabilitation progress management, etc.
- the gait analysis system because the lower limb detection device and the sole detection device respectively include ZigBee communication modules, so after detecting the knee joint motion information and the sole pressure information, it can be based on the respective ZigBee communication modules.
- the group sends the information, so that the processing device can acquire the knee joint motion information and the plantar pressure information through ZigBee wireless communication. Therefore, the solution of the present application transmits the acquired knee joint motion information and plantar pressure information to the processing device through ZigBee wireless communication, which can avoid the disadvantage of complicated wiring brought by wired transmission in the prior art.
- ZigBee Due to the low power consumption of wireless communication technology, this solution can reduce the power consumption and cost of the gait analysis system.
- the disclosed method and device may be implemented in other manners.
- the device implementations described above are only illustrative.
- the above-mentioned division of modules or units is only a logical function division.
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Abstract
Description
Claims (10)
- 一种步态分析系统,其特征在于,所述步态分析系统包括:下肢检测装置,固定于人体下肢,用于获取膝关节运动信息,所述下肢检测装置包括第一zigbee通信模组,用于将所述膝关节运动信息发送出去;足底检测装置,固定于人体足底,用于获取足底压力信息,所述足底检测装置包括第二zigbee通信模组,用于将所述足底压力信息发送出去;处理装置,用于获取所述膝关节运动信息和所述足底压力信息,并根据所述膝关节运动信息和所述足底压力信息对人体进行步态分析。
- 根据权利要求1所述的步态分析系统,其特征在于,所述膝关节运动信息包括所述膝关节的角度与加速度。
- 根据权利要求2所述的步态分析系统,其特征在于,所述下肢检测装置还包括:至少一个惯性传感器,与所述第一ZigBee通信模组连接,用于采集所述膝关节的角度与加速度。
- 根据权利要求3所述的步态分析系统,其特征在于,所述下肢检测装置包括:第一惯性传感器,用于采集大腿的角度和加速度;第二惯性传感器,用于采集小腿的角度和加速度;第一单片机,连接所述第一惯性传感器和所述第二惯性传感器以及所述第一ZigBee通信模组,用于基于所述大腿的角度和加速度、所述小腿的角度和加速度,计算得到所述膝关节的相对加速度和相对角度并通过所述第一ZigBee通信模组发送出去。
- 根据权利要求4所述的步态分析系统,其特征在于,所述第一单片机用于计算所述大腿的角度和所述小腿的角度之差,得到所述膝关节的相对角度,计算所述大腿的加速度和所述小腿的加速度之差,得到所述膝关节的相对加速度。
- 根据权利要求4所述的步态分析系统,其特征在于,所述下肢检测装置包括:第一盒体,用于放置所述第一惯性传感器、所述第一单片机以及所述第一ZigBee通信模组,所述第一盒体设置于所述大腿靠近所述膝关节的一侧;第二盒体,用于放置所述第二惯性传感器,所述第二盒体设置于所述小腿靠近所述膝关节的一侧。
- 根据权利要求3所述的步态分析系统,其特征在于,所述惯性传感器为九轴传感器。
- 根据权利要求1所述的步态分析系统,其特征在于,所述足底检测装置包括:至少一个足底压力传感器,连接所述第二zigbee通信模组,用于采集所述足底压力信息;至少一个单片机,连接所述至少一个足底压力传感器以及所述第二zigbee通信模组,用于接收所述足底压力信息计算足底压力值,并通过所述第二zigbee通信模组将所述足底压力值发送出去。
- 根据权利要求8所述的步态分析系统,其特征在于,所述足底检测装置包括三个所述足底压力传感器,三个所述足底压力传感器均连接所述第二zigbee通信模组;其中,三个所述足底压力传感器分别对应前脚掌两侧和脚后跟设置,并分别用于感应所述前脚掌两侧和所述脚后跟的压力信号。
- 根据权利要求8所述的步态分析系统,其特征在于,所述足底压力传感器为薄膜压力传感器。
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110497086.3A CN113288121A (zh) | 2021-05-07 | 2021-05-07 | 一种步态分析系统 |
| CN202110497086.3 | 2021-05-07 |
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| WO2022233138A1 true WO2022233138A1 (zh) | 2022-11-10 |
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| WO (1) | WO2022233138A1 (zh) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113288121A (zh) * | 2021-05-07 | 2021-08-24 | 深圳先进技术研究院 | 一种步态分析系统 |
| CN114343617A (zh) * | 2021-12-10 | 2022-04-15 | 中国科学院深圳先进技术研究院 | 一种基于边云协同的患者步态实时预测方法 |
| CN117204993B (zh) * | 2023-11-09 | 2024-02-27 | 浙江强脑科技有限公司 | 智能假肢运动模式识别方法、装置、智能假肢及存储介质 |
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2021
- 2021-05-07 CN CN202110497086.3A patent/CN113288121A/zh active Pending
- 2021-12-14 WO PCT/CN2021/137704 patent/WO2022233138A1/zh not_active Ceased
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| CN108013878A (zh) * | 2016-11-03 | 2018-05-11 | 北京航空航天大学 | 一种基于足底压力的智能传感鞋步态分析系统 |
| CN108338790A (zh) * | 2017-01-24 | 2018-07-31 | 首都医科大学 | 步态分析及跌倒评估系统 |
| CN108095729A (zh) * | 2018-01-24 | 2018-06-01 | 深圳市臻络科技有限公司 | 一种冻结步态识别方法和装置 |
| CN209574702U (zh) * | 2018-08-06 | 2019-11-05 | 上海博灵机器人科技有限责任公司 | 一种下肢外骨骼式步态分析系统 |
| CN113288121A (zh) * | 2021-05-07 | 2021-08-24 | 深圳先进技术研究院 | 一种步态分析系统 |
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