CN209231103U - A kind of ankle-foot orthosis mechanical characteristic measuring device based on pressure sensor - Google Patents
A kind of ankle-foot orthosis mechanical characteristic measuring device based on pressure sensor Download PDFInfo
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- CN209231103U CN209231103U CN201822101504.9U CN201822101504U CN209231103U CN 209231103 U CN209231103 U CN 209231103U CN 201822101504 U CN201822101504 U CN 201822101504U CN 209231103 U CN209231103 U CN 209231103U
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Abstract
The utility model provides a kind of ankle-foot orthosis mechanical characteristic measuring device based on pressure sensor, belongs to ankle-foot orthosis mechanics detection field.The measuring device includes mechanical framework, direct-connected torque transducers, gravity loading bearing, single-chip microcontroller, transmitter, torque sensor, worm type of reduction gearing, the coaxial device of transmission, power supply and the motor driver being set to inside mechanical framework, servo motor, planetary reduction gear, flange, and it is set to display screen, lifting platform, pressure sensor and pedal outside mechanical framework.The design of present apparatus structure is simple, detection speed is fast, reliability is higher, practicability is larger, there is biggish application prospect.
Description
Technical field
The utility model belongs to ankle-foot orthosis mechanics detection field, a kind of ankle-foot orthosis power based on pressure sensor
Learn characteristic measuring device.
Background technique
Means of the orthoses as orthopedic surgery are applied in clinic already.Orthoses is due to new in recent years
Making material constantly comes out and the continuous improvement of production technique, cerebral apoplexy, paraplegia, hemiplegia, brain paralysis etc. treatment in gradually by
People are applied.By ankle-foot orthosis appropriate, it can prevent and correct ankle and foot deformation, it to a certain extent can be with auxiliary
The function of compensation excalation is helped, drop foot is limited, stablizes away from upper joint, corrects and turn up in foot, stablize subtalar joint.
WHO Report in 2016 claims China's Cerebral Haemorrhage Invasion Rate the first in the world.In the patients with cerebrovascular disease of survival
In, there are about 3/4ths disabilities to some extent, and wherein severe disabled person accounts for about 40%.Fortune caused by cerebrovascular disease
The damage of the functions such as dynamic needs long-term rehabilitation.Copenhagen research report points out that only 10% patients with cerebral apoplexy is final
Realize functional walking.In clinical rehabilitation practice, ankle-foot orthosis is widely used in cerebral apoplexy sufferer, clinic effect
Fruit is significant, especially effectively improves the leg speed and balance of sufferer.
Currently, the production and clinical application of ankle-foot orthosis are only with the extensive measurement and feeling of clinical experience and medical staff
It is made, trying on, adjust and correcting and be just able to satisfy the needs of patient by some time is needed before use.In order to improve ankle
The design applicability and accuracy of orthopedic remedy instrument for foot save Production Time, are more preferably, more efficiently patient service, utilize computer
The motor and mechanical meaurement system and device of control carry out the mechanical characteristic evaluation and test of ankle-foot orthosis, can largely save ankle foot
The Production Time of orthoses simultaneously liberates manpower, reduce costs with the unnecessary overhead cost of sufferer etc., while can be convenient straight
Plantar nervous arch of the ground to wearing ankle-foot orthosis walking when is seen to simulate.For effectively improving the efficiency of medical services,
There is positive effect to the raising of medical service level.Facilitate ankle foot by the detection and analysis to ankle-foot orthosis mechanical characteristic
The optimization and upgrading of orthoses assists in patient and more targetedly produces suitable orthoses.
Utility model content
The utility model evaluates and tests ankle-foot orthosis mechanical property technical deficiency for current medical industry, intends development ankle and rectifys enough
The quantitative mechanical characteristic of shape device is evaluated and tested, and the later period can be for the application that patients with cerebral apoplexy body gait is evaluated and tested, on this basis
Human body and ankle-foot orthosis model are established in conjunction with ankle-foot orthosis mechanical characteristic and human cinology's parameter and to ankle-foot orthosis
Main mechanical parameter rigidity optimizes.
The technical solution of the utility model includes:
A kind of ankle-foot orthosis mechanical characteristic measuring device based on pressure sensor, which includes mechanical framework
1, direct-connected torque transducers 6, gravity loading bearing 8, single-chip microcontroller 10, the transmitter 12, torque being set to inside mechanical framework 1
Sensor 13, worm type of reduction gearing 14, the coaxial device 15 of transmission, power supply 16 and motor driver 17, servo motor 18, planet subtracts
Fast device 19, flange 20, and it is set to display screen 2, lifting platform, pressure sensor 7 and pedal 9 outside mechanical framework 1；
The mechanical framework 1 is used to carry the weight of whole device, and reduces the vibration of device；The display screen
2 are set to 1 surface of mechanical framework, for inputting plantar flexion dorsiflex angle data and number of activities, while showing torsion when test
Square data and gravimetric data；
The power supply 16 is whole device power supply, is connected with motor driver 17；Motor driver 17 and servo motor
18 are connected, and motor driver 17 is responsible for the revolving speed and torque of control servo motor 18, and servo motor 18 provides ankle-foot orthosis fortune
Dynamic power and movement rate；The output shaft of servo motor 18 is connected with planetary reduction gear 19, the output shaft of planetary reduction gear 19
It is connected with worm type of reduction gearing 14, and fixed by flange 20 therebetween, the power of servo motor 18 successively passes to row
Star retarder 19 and worm type of reduction gearing 14, and by planetary reduction gear 19 and worm type of reduction gearing 14 successively to servo electricity
The revolving speed of machine 18 carries out reduction of speed and improves torque；Worm type of reduction gearing 14 is by being driven coaxial device 15 and 13 phase of torque sensor
Even；The end for being driven coaxial device 15 extends to mechanical framework 1, and is realized by gravity loading bearing 8 and stepped on outside mechanical framework 1
The connection of plate 9；The rotation of 14 inside worm gear of worm type of reduction gearing drives and is driven the coaxial rotation of device 15, and then held by gravity
Carry the operating that bearing 8 drives pedal 9；The torque sensor 13 successively with direct-connected torque transducers 6,10 phase of single-chip microcontroller
Even, the responsible detection servo motor 18 of torque sensor 13 passes to the torque data of ankle-foot orthosis, and torque data is transmitted
To single-chip microcontroller 10；
The lifting platform includes support rod 3, elevating lever 4, pedestal 5, connecting rod, rod set and knob, and support rod 3 is vertically solid
Due on pedestal 5, elevating lever 4 is arranged in parallel in 3 side of support rod, passes through the cooperation of knob, rod set and connecting rod therebetween
Realize connection, it is ensured that while connecting rod is slided up and down along support rod 3, drive elevating lever 4 to move up and down, and eventually by knob
Realize the positioning of elevating lever 4.
It the pressure sensor 7 totally four, being both secured on pedal 9, two of them are located at the front end of ankle-foot orthosis,
Other two is located at the rear end of ankle-foot orthosis；Four pressure sensors 7 respectively respectively with four pick-ups inside mechanical framework 1
Device 12 is connected, responsible to detect the gravity for being applied to ankle-foot orthosis various pieces, and weight distribution data are passed through transmitter 12
It is transmitted in single-chip microcontroller 10, realizes the transmission for applying force signal.
The electrical signal data that the single-chip microcontroller 10 can transmit transmitter 12 and direct-connected torque transducers 6 passes through A/D
Conversion, is converted into digital signal, and then pressure value is presented on display screen 2.
Usb data delivery outlet 11 is set on the single-chip microcontroller 10, and single-chip microcontroller 10 is realized by USB data line and computer
The transmission of data.
The speed ratio of the planetary reduction gear 19 and worm type of reduction gearing 14 is 10:1.
A kind of ankle-foot orthosis mechanical characteristic measurement method based on pressure sensor, steps are as follows:
(1) ankle-foot orthosis is worn on experiment with outside substitution leg, is placed on pressure sensor (7), will tests jointly
Carry out bundled fixed between substitution leg and ankle-foot orthosis, and by between experiment ankle-foot orthosis and pressure sensor 7 into
Row is fixed, and prevents ankle-foot orthosis in experimentation from shifting.
(2) ankle-foot orthosis is adjusted to elevating lever 4, turning knob, declines elevating lever 4 along support rod 3,
And be in close contact and fixed with substitution leg center with experiment, prevent ankle-foot orthosis and substitution leg in experiment from toppling over.
(3) power supply 16 is opened, current ankle-foot orthosis plantar pressure data, i.e., four pressures are observed on display screen 2
Force sensor data, torque data and angle-data.Observed data are as unit of newton N.
(4) plantar flexion, dorsiflex activity point of view and the number of activities that experiment defined is inputted on display screen 2, click fortune
Device brings into operation after row.Motor driver 17 drives servo motor 18 to start to work, and passes through planetary reduction gear 19 and worm gear snail
Bar retarder 14 reduces revolving speed, improves torque.Gravity loading bearing 8 is driven to operate by being driven coaxial device 15, to make to step on
Plate 9 works, and the ankle-foot orthosis on pressure sensor 7 is driven to rotate together.Device voluntarily stops after completing regulation times of exercise
Running passes through the stopping or pause of the display control experiment of screen 2 when occurring abnormal in the process.
(5) in device operational process, pressure sensor 7 detects the pressure point of four different locations before and after ankle-foot orthosis
Cloth situation, converts pressure signal to by transmitter 12 voltage signal of 1-5V, and the voltage signal of transmission is passed through in single-chip microcontroller 10
A/D conversion is crossed, digital signal is converted to, pressure distribution values are presented on display screen 2.It is driven what coaxial device 15 was transmitted
Torque signal is detected by torque sensor 13, converts torque signal to by direct-connected torque transmitter 6 electricity of 1-5V
Signal is pressed, the torque signal transmitted later is converted in single-chip microcontroller 10 by A/D, digital signal is converted to, by different torque numbers
Value is presented on display screen 2.
The utility model has the beneficial effects that the design of present apparatus structure is simple, detection speed is fast, reliability is higher, practicability
It is larger, there is biggish application prospect.The present apparatus can be by the measurement of torque in experiment and angle for ankle-foot orthosis rigidity
Detection, is conducive in clinic to different patient's conditions, targetedly designs and manufacture ankle-foot orthosis, reduces and repeats to detect
And production modification time, motor and mechanical meaurement system and device that benefit is computerizedd control carry out the mechanical characteristic of ankle-foot orthosis
Evaluation and test, detection speed is fast, based on data shown by pressure sensor 7, understands the walking process mesopodium bottom of wearing ankle-foot orthosis
Pressure distribution situation can find to be modified the problem of ankle-foot orthosis and in time in time in the detection process, can be largely
Ground saves the Production Time of ankle-foot orthosis and liberates manpower, reduces costs and the unnecessary expense of sufferer.
Detailed description of the invention
Fig. 1 is the external structure schematic diagram of the utility model.
Fig. 2 is the schematic diagram of internal structure of the utility model.
In figure: 1 mechanical framework；2 display screens；3 support rods；4 elevating levers；5 pedestals；6 direct-connected torque transducers；7 pressures
Force snesor；8 gravity loading bearings；9 pedals；10 single-chip microcontrollers；11USB data output；12 transmitters；13 torque sensors；
14 worm type of reduction gearing；The 15 coaxial devices of transmission；16 power supplys；17 motor drivers；18 servo motors；19 planetary reduction gears；20
Flange.
Specific embodiment
Technical solution of the present invention is further detailed below in conjunction with specific embodiments and the drawings.
A kind of ankle-foot orthosis mechanical characteristic measuring device based on pressure sensor, which includes mechanical framework
1, direct-connected torque transducers 6, gravity loading bearing 8, single-chip microcontroller 10, the transmitter 12, torque being set to inside mechanical framework 1
Sensor 13, worm type of reduction gearing 14, the coaxial device 15 of transmission, power supply 16 and motor driver 17, servo motor 18, planet subtracts
Fast device 19, flange 20, and it is set to display screen 2, lifting platform, pressure sensor 7 and pedal 9 outside mechanical framework 1；
The mechanical framework 1 is used to carry the weight of whole device, and reduces the vibration of device；The display screen
2 are set to 1 surface of mechanical framework, for inputting plantar flexion dorsiflex angle data and number of activities, while showing torsion when test
Square data and gravimetric data；
The power supply 16 is whole device power supply, is connected with motor driver 17；Motor driver 17 and servo motor
18 are connected, and motor driver 17 is responsible for the revolving speed and torque of control servo motor 18, and servo motor 18 provides ankle-foot orthosis fortune
Dynamic power and movement rate；The output shaft of servo motor 18 is connected with planetary reduction gear 19, the output shaft of planetary reduction gear 19
It is connected with worm type of reduction gearing 14, and fixed by flange 20 therebetween, the power of servo motor 18 successively passes to row
Star retarder 19 and worm type of reduction gearing 14, and by planetary reduction gear 19 and worm type of reduction gearing 14 successively to servo electricity
The revolving speed of machine 18 carries out reduction of speed and improves torque；Worm type of reduction gearing 14 is by being driven coaxial device 15 and 13 phase of torque sensor
Even；The end for being driven coaxial device 15 extends to mechanical framework 1, and is realized by gravity loading bearing 8 and stepped on outside mechanical framework 1
The connection of plate 9；The rotation of 14 inside worm gear of worm type of reduction gearing drives and is driven the coaxial rotation of device 15, and then held by gravity
Carry the operating that bearing 8 drives pedal 9；The torque sensor 13 successively with direct-connected torque transducers 6,10 phase of single-chip microcontroller
Even, the responsible detection servo motor 18 of torque sensor 13 passes to the torque data of ankle-foot orthosis, and torque data is transmitted
To single-chip microcontroller 10；
The lifting platform includes support rod 3, elevating lever 4, pedestal 5, connecting rod, rod set and knob, and support rod 3 is vertically solid
Due on pedestal 5, elevating lever 4 is arranged in parallel in 3 side of support rod, passes through the cooperation of knob, rod set and connecting rod therebetween
Realize connection, it is ensured that while connecting rod is slided up and down along support rod 3, drive elevating lever 4 to move up and down, and eventually by knob
Realize the positioning of elevating lever 4.
It the pressure sensor 7 totally four, being both secured on pedal 9, two of them are located at the front end of ankle-foot orthosis,
Other two is located at the rear end of ankle-foot orthosis；Four pressure sensors 7 respectively respectively with four pick-ups inside mechanical framework 1
Device 12 is connected, responsible to detect the gravity for being applied to ankle-foot orthosis various pieces, and weight distribution data are passed through transmitter 12
It is transmitted in single-chip microcontroller 10, realizes the transmission for applying force signal.
The electrical signal data that the single-chip microcontroller 10 can transmit transmitter 12 and direct-connected torque transducers 6 passes through A/D
Conversion, is converted into digital signal, and then pressure value is presented on display screen 2.
Usb data delivery outlet 11 is set on the single-chip microcontroller 10, and single-chip microcontroller 10 is realized by USB data line and computer
The transmission of data.
The speed ratio of the planetary reduction gear 19 and worm type of reduction gearing 14 is 10:1.
A kind of ankle-foot orthosis mechanical characteristic measurement method based on pressure sensor, steps are as follows:
(1) ankle-foot orthosis is worn on experiment with outside substitution leg, is placed on pressure sensor (7), will tests jointly
Carry out bundled fixed between substitution leg and ankle-foot orthosis, and by between experiment ankle-foot orthosis and pressure sensor 7 into
Row is fixed, and prevents ankle-foot orthosis in experimentation from shifting.
(2) ankle-foot orthosis is adjusted to elevating lever 4, turning knob, declines elevating lever 4 along support rod 3,
And be in close contact and fixed with substitution leg center with experiment, prevent ankle-foot orthosis and substitution leg in experiment from toppling over.
(3) power supply 16 is opened, current ankle-foot orthosis plantar pressure data, i.e., four pressures are observed on display screen 2
Force sensor data, torque data and angle-data.Observed data are as unit of newton N.
(4) plantar flexion, dorsiflex activity point of view and the number of activities that experiment defined is inputted on display screen 2, click fortune
Device brings into operation after row.Motor driver 17 drives servo motor 18 to start to work, and passes through planetary reduction gear 19 and worm gear snail
Bar retarder 14 reduces revolving speed, improves torque.Gravity loading bearing 8 is driven to operate by being driven coaxial device 15, to make to step on
Plate 9 works, and the ankle-foot orthosis on pressure sensor 7 is driven to rotate together.Device voluntarily stops after completing regulation times of exercise
Running passes through the stopping or pause of the display control experiment of screen 2 when occurring abnormal in the process.
(5) in device operational process, pressure sensor 7 detects the pressure point of four different locations before and after ankle-foot orthosis
Cloth situation, converts pressure signal to by transmitter 12 voltage signal of 1-5V, and the voltage signal of transmission is passed through in single-chip microcontroller 10
A/D conversion is crossed, digital signal is converted to, pressure distribution values are presented on display screen 2.It is driven what coaxial device 15 was transmitted
Torque signal is detected by torque sensor 13, converts torque signal to by direct-connected torque transmitter 6 electricity of 1-5V
Signal is pressed, the torque signal transmitted later is converted in single-chip microcontroller 10 by A/D, digital signal is converted to, by different torque numbers
Value is presented on display screen 2.
Before experiment, the USB flash disk for recording data is inserted in into usb data delivery outlet 11.Data in experimentation pass through usb data
Delivery outlet 11 is stored by USB flash disk, and output data is original signal.
In device operational process, it is observed that four pressure sensor datas of different moments, torque on display screen 2
Data, angle-data and current completed number of run.Pressure sensor data is respectively with four different colours songs simultaneously
Line is presented on the left of screen with image format, and convenient for the cyclically-varying of observation in an experiment, and the observation data can be facilitated to be
No appearance is abnormal.
Claims (5)
1. a kind of ankle-foot orthosis mechanical characteristic measuring device based on pressure sensor, which is characterized in that the measuring device packet
Mechanical framework (1) is included, the internal direct-connected torque transducers (6) of mechanical framework (1), gravity loading bearing (8), monolithic are set to
Machine (10), transmitter (12), torque sensor (13), worm type of reduction gearing (14), the coaxial device (15) of transmission, power supply (16) and
Motor driver (17), servo motor (18), planetary reduction gear (19), flange (20), and it is set to mechanical framework (1) outside
Display screen (2), lifting platform, pressure sensor (7) and pedal (9)；
The mechanical framework (1) is used to carry the weight of whole device, and reduces the vibration of device；The display screen
(2) it is set to mechanical framework (1) surface, for inputting plantar flexion dorsiflex angle data and number of activities, while when showing test
Torque data and gravimetric data；
The power supply (16) is whole device power supply, is connected with motor driver (17)；Motor driver (17) and servo electricity
Machine (18) is connected, and motor driver (17) is responsible for the revolving speed and torque of control servo motor (18), and servo motor (18) provides ankle
The power and movement rate of orthopedic remedy instrument for foot movement；The output shaft of servo motor (18) is connected with planetary reduction gear (19), and planet subtracts
The output shaft of fast device (19) is connected with worm type of reduction gearing (14), and fixed by flange (20) therebetween, servo motor
(18) power successively passes to planetary reduction gear (19) and worm type of reduction gearing (14), and by planetary reduction gear (19) and
Worm type of reduction gearing (14) successively carries out reduction of speed to the revolving speed of servo motor (18) and improves torque；Worm type of reduction gearing
(14) it is connected by being driven coaxial device (15) with torque sensor (13)；The end for being driven coaxial device (15) extends to mechanical framework
(1), and by gravity loading bearing (8) connection with mechanical framework (1) external pedal (9) is realized；Worm type of reduction gearing
(14) rotation of internal worm gear drives and is driven coaxial device (15) rotation, and then drives pedal (9) by gravity loading bearing (8)
Operating；The torque sensor (13) is successively connected with direct-connected torque transducers (6), single-chip microcontroller (10), torque sensing
Device (13) is responsible for detection servo motor (18) and passes to the torque data of ankle-foot orthosis, and sends torque data to single-chip microcontroller
(10)；
The lifting platform includes support rod (3), elevating lever (4), pedestal (5), connecting rod, rod set and knob, and support rod (3) hangs down
It is directly fixed on pedestal (5), elevating lever (4) is arranged in parallel in support rod (3) side, passes through knob, rod set and company therebetween
Connection is realized in the cooperation of extension bar, it is ensured that while connecting rod is slided up and down along support rod (3), elevating lever (4) is driven to move up and down,
And the positioning of elevating lever (4) is realized eventually by knob；
The pressure sensor (7) totally four, is both secured on pedal (9), and two of them are located at the front end of ankle-foot orthosis,
Other two is located at the rear end of ankle-foot orthosis；Four pressure sensors (7) distinguish respectively four with mechanical framework (1) inside
Transmitter (12) is connected, responsible to detect the gravity for being applied to ankle-foot orthosis various pieces, and weight distribution data are passed through change
It send device (12) to be transmitted in single-chip microcontroller (10), realizes the transmission for applying force signal.
2. a kind of ankle-foot orthosis mechanical characteristic measuring device based on pressure sensor according to claim 1, special
Sign is that the single-chip microcontroller (10) can pass through the electrical signal data that transmitter (12) and direct-connected torque transducers (6) transmit
A/D conversion is crossed, digital signal is converted into, then pressure value is presented in display screen (2).
3. a kind of ankle-foot orthosis mechanical characteristic measuring device based on pressure sensor according to claim 1 or 2,
It is characterized in that, usb data delivery outlet (11) are arranged on the single-chip microcontroller (10), and single-chip microcontroller (10) passes through USB data line and meter
The transmission of calculation machine realization data.
4. a kind of ankle-foot orthosis mechanical characteristic measuring device based on pressure sensor according to claim 1 or 2,
It is characterized in that, the speed ratio of the planetary reduction gear (19) and worm type of reduction gearing (14) is 10:1.
5. a kind of ankle-foot orthosis mechanical characteristic measuring device based on pressure sensor according to claim 3, special
Sign is that the speed ratio of the planetary reduction gear (19) and worm type of reduction gearing (14) is 10:1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822101504.9U CN209231103U (en) | 2018-12-14 | 2018-12-14 | A kind of ankle-foot orthosis mechanical characteristic measuring device based on pressure sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822101504.9U CN209231103U (en) | 2018-12-14 | 2018-12-14 | A kind of ankle-foot orthosis mechanical characteristic measuring device based on pressure sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209231103U true CN209231103U (en) | 2019-08-09 |
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| CN201822101504.9U Withdrawn - After Issue CN209231103U (en) | 2018-12-14 | 2018-12-14 | A kind of ankle-foot orthosis mechanical characteristic measuring device based on pressure sensor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109459308A (en) * | 2018-12-14 | 2019-03-12 | 大连理工大学 | A kind of ankle-foot orthosis mechanical characteristic measuring device and method based on pressure sensor |
-
2018
- 2018-12-14 CN CN201822101504.9U patent/CN209231103U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109459308A (en) * | 2018-12-14 | 2019-03-12 | 大连理工大学 | A kind of ankle-foot orthosis mechanical characteristic measuring device and method based on pressure sensor |
| CN109459308B (en) * | 2018-12-14 | 2020-04-07 | 大连理工大学 | Ankle-foot orthosis mechanical property measuring device and method based on pressure sensor |
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