CN206044741U - A kind of magnetic resonance compatible electromechanics stimulating apparatus of simulation body gait plantar pressure - Google Patents
A kind of magnetic resonance compatible electromechanics stimulating apparatus of simulation body gait plantar pressure Download PDFInfo
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- CN206044741U CN206044741U CN201620335160.6U CN201620335160U CN206044741U CN 206044741 U CN206044741 U CN 206044741U CN 201620335160 U CN201620335160 U CN 201620335160U CN 206044741 U CN206044741 U CN 206044741U
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- pressure
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- simulation
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Abstract
The utility model discloses a kind of magnetic resonance compatible electromechanics stimulating apparatus of simulation body gait plantar pressure.This electromechanical device includes：1. this utility model is made up of Pneumatic pressure power module, control module, gait pressure simulation module, and Pneumatic pressure power module is driven by 24V voltages by electric drive, control module, and gait pressure simulation module is by high pressure air drives；2. gait pressure simulation module whole part is made by nonferromugnetic material；3. outside Pneumatic pressure power module and control module are placed between magnetic resonance imaging, within gait pressure simulation module is placed between magnetic resonance imaging；4. special parameter is set, allows the Pressure stimulation straight panel by air cylinder driven of gait pressure simulation module to stimulate tested vola.This utility model is capable of the plantar pressure of effectively simulation body gait and is changed, and compatible magnetic resonance environment, can more allow the tested resting state for keeping recumbency to receive foot sole stimulation.
Description
Technical field
This utility model is related to a kind of magnetic resonance compatible electromechanics stimulating apparatus for simulating body gait plantar pressure, category
In electromechanical integrated product technical field.
Background technology
Nuclear magnetic resonance (Magnetic Resonance Imaging, MRI) is also referred to as NMR (Nuclear Magnetic Resonance)-imaging, is to utilize nuclear-magnetism
Resonance principle, detects launched electromagnetic wave by additional gradient magnetic, can present organization internal structural images accordingly.
Functional magnetic resonance (functional MRI) technology for developing on this basis, not only can position brain activation, moreover it is possible to be used for
The dynamic change and its network function of research cerebral activity, has greatly promoted medical science, neuro physiology and cognitive neuroscience
Development.
Attitude and behavior characteristicss when gait refers to human locomotion, human body by hip, knee joint, ankle, toes it is a series of continuous
Activity, the process for making body move along certain orientation.Gait is commonly divided into normal gait and pathology gait.The mankind are to gait
Analysis had the history of 300 years, the research of normal gait for physical health field optimization and improve sports achievement tool
There is important value；The research of pathology gait is for the diagnosis and intervention of rehabilitation engineering is with more irreplaceable effect.Research is sent out
Existing, various neurodegenerative diseases can all cause gait feature that significant change occurs, and correspondingly its brain controlling network can also go out
Now change.
How the brain function controlling network that people are wanted to know about under human locomotion state always works, but is faced with
Two difficult problems：One is conventional electronic devices (gait generator of such as Zhang Yanan et al., utility model patent Authorization Notice No. CN
202719099 U) cannot in magnetic resonance workplace normal work, this is up to due to the ultrastrong magnetic field between magnetic resonance imaging
1.5T～7T, necessarily causes the metal devices such as electric wire, motor that traditional electro-mechanical equipment includes use；Two is current magnetic
Resonant device all necessarily requires tested lying in do not move at all on scan table, but traditional gait analog requires tested standing and fortune
Dynamic (gait rehabilitation training robot control system of such as Song Quanjun et al., application for a patent for invention publication No. CN 102225034
A), it is difficult to effectively be simulated to plantar pressure during human locomotion between magnetic resonance imaging.The vola list of Hao Ying et al.
Point stimulation instrument (referring to Hao, Y., Manor, B., Liu, J., Zhang, K., Chai, Y.F., Lipsitz, L., Peng, C.K.,
Novak,V.,Wang,X.Y.,Zhang,J.,Fang,J.(2013)Novel MRI-Compatible Tactile
Stimulator for Cortical Mapping of Foot Sole Pressure Stimuli with fMRI.Magn
Reson Med,69:Although 1194-1199) punctual stimulation can only be carried out to vola, it is impossible to do with compatible magnetic resonance environment
To the change of simulation body gait plantar pressure.
Utility model content
This utility model is in order to avoid traditional gait analog requirement is tested in standing state and cannot be in magnetic altogether
Shake the deficiency worked under environment, there is provided a kind of magnetic resonance compatible electromechanics stimulating apparatus of simulation body gait plantar pressure, press
Like this device of method design can compatible nuclear magnetic resonance environment, can allow tested with static passive state simulation human body master
Dynamic gait plantar pressure change, using gait plantar pressure analog parameter and magnetic resonance brain activation situation can carry out by
The design of dynamic rehabilitation training and recruitment evaluation.
This utility model proposes following technical scheme to solve above-mentioned technical problem：
1) this utility model is made up of Pneumatic pressure power module, control module, gait pressure simulation module.Pneumatic pressure power mould
Connect to pass with hollow nonferromagnetic trachea (such as plastics trachea) between block, control module, gait pressure simulation module three
Send pressure-air, pressure-air to generate from Pneumatic pressure power module, gait pressure simulation module (ginseng is input into Jing after control module modulation
See Fig. 1, solid arrow represents airflow direction)；
2) gait pressure simulation module adopts high pressure air drives, all parts of gait pressure simulation module (include but
It is not limited to cylinder, buffer, fixer for feet part, little leg holder, angle adjuster, fagging, fixed straight panel, Pressure stimulation straight
Plate, run-on point and straight-bar) by nonferromugnetic material (such as cylinder is made of aluminum, remaining part is made by nylon) making
Into (referring to Fig. 1, all parts of gait pressure simulation module with enclosed with dashed lines come)；
3) the gait pressure simulation module with magnetic resonance compatibility is placed on the scan table between magnetic resonance imaging, no
Outside Pneumatic pressure power module with magnetic resonance compatibility and control module are placed between magnetic resonance imaging；
4) Pneumatic pressure power module includes air pump and nonferromagnetic trachea, and Pneumatic pressure power module exchanges electric drive by 220V, profit
The pressure-air of 0.8Mpa is up to air pump (such as Medical air pump) output；
5) by electric drive, voltage is 12～24V, 0.5～1A of electric current to control module, is subjected to the gait simulation being manually entered
Parameter, exports the controlled gas pressure of 0.1Mpa (normal pressure)～0.8Mpa；
6) control module includes proportioning valve, five-way valve and its control circuit, and default gait analog parameter can be by control
Circuit processed adjusts the gait plantar pressure time serieses of simulation output, and control circuit comparative example valve is controlled so as to adjust air pressure
The output pressure of power plant module, control circuit five-way valve is controlled so as to adjust gait pressure simulation module cylinder a and
The input air pressure of cylinder b；
7) control module exports the simulation gait air pressure of two-way independence, and the simulation gait air pressure of two-way independence is butted up against respectively
On cylinder a and cylinder b, the simulation gait air pressure minimum interval time of exchanging gas of two-way independence is 0.1s, and minimum duration of ventilation is
0.1s；
8) the two-way gait simulation air pressure control that the controlled modules of cylinder a and cylinder b are produced, when the gas of control module output
Press for normal pressure (0.1Mpa) when, cylinder a and cylinder b be in off working state；
9) when the air pressure that control module is exported to cylinder a is more than normal pressure, the pore a and pore b of cylinder a enter in one
The state of gas another outlet：When the pressure differential of the two is timing, the straight-bar a of cylinder a connections is forced to stretch out, when the pressure of the two
When difference is to bear, the straight-bar a of cylinder a connections is forced to contracting；
10) when the air pressure that control module is exported to cylinder b is more than normal pressure, the pore c and pore d of cylinder b are also at one
The state of individual another outlet of air inlet：When the pressure differential of the two be timing, cylinder b connection straight-bar c be forced to stretch out, when the two
When pressure differential is to bear, the straight-bar c of cylinder b connections is forced to retract；
11) the Pressure stimulation straight panel in tested vola is stimulated to be made by nonferromagnetic hard material (such as nylon), gas
The straight-bar c that the straight-bar a and cylinder b that cylinder a is fixedly connected is fixedly connected is flexibly connected with Pressure stimulation straight panel, Pressure stimulation straight panel
Output strength scope is 0～800N；
12) fixed straight panel is connected as a single entity with fagging, and cylinder a and cylinder b is fixed in fixed straight panel, fixer for feet part
It is fixed on fagging with little leg holder, but is not in contact between fixer for feet part and Pressure stimulation straight panel；
13) buffer is fixed in fixed straight panel, for ensureing straight-bar b only perpendicular to fixed straight panel normal plane motion；
14) Pressure stimulation straight panel and tested foot directly contact, positions of the cylinder a and cylinder b in fixed straight panel can
With movement, straight-bar a is directed at the center of forefoot, and straight-bar c is directed at the center of rear heel, is connected with straight-bar a by fixed
The position of run-on point a for connecing and run-on point c that is connected with straight-bar c in adjustment tank, this equipment be adapted to Chinese Industrial Standards (CIS) 25～
60 yards of foot；
15) by adjusting on fixer for feet part and little leg holder, tested foot and shank can adaptively be ensured
It is fixed；
16) connected by angle adjuster between fixer for feet part and little leg holder, angle adjuster can allow foot solid
The angular range for determining device bottom surface and little leg holder abdominal part accomplishes 30 °～90 °.
Air does not have ferromagnetism, will not be subject to strong magnetic force environmental effect.Gait pressure simulation module of the present utility model
Using high pressure air drives, it is ensured that the power of gait pressure simulation module will not be by the strong magnetic force environmental effect of magnetic resonance.Aluminum
Will not be affected by strong magnetic force environment with the nonferromugnetic material such as nylon.All parts of gait pressure simulation module are by non-
Ferrimagnet is made, it is ensured that gait pressure simulation module itself will not be subject to the strong magnetic force environmental effect of magnetic resonance.
Within gait pressure simulation module with magnetic resonance compatibility is placed between magnetic resonance imaging, allow it is tested can be in magnetic
Receive passive gait plantar pressure simulation between resonance scan.The not Pneumatic pressure power module with magnetic resonance compatibility and control
Outside module is placed between magnetic resonance imaging, allow Pneumatic pressure power module and control module not by the strong magnetic force environmental effect of magnetic resonance.
Human body is mainly forefoot in actual walking and rear heel the two points land, therefore this utility model is used
Two cylinders carry out control pressure stimulates straight panel to carry out foot sole stimulation, the straight-bar a that cylinder a and cylinder b are respectively fixedly connected with to tested
The controlled gas pressure provided with the controlled modules of straight-bar c is controlled and is stretched and with the straight-bar b of buffer control as fulcrum, and then is controlled
Pressure stimulation straight panel stimulates tested vola.During simulation gait, straight-bar a, b, c can accomplish while stretching out to simulate foot
The plantar pressure that bottom lands completely, straight-bar a, b, c can accomplish while the plantar pressure completely liftoff to simulate vola of retracting,
To simulate the plantar pressure of forward roll, straight-bar c retractions while can accomplishing that straight-bar a stretches out can more accomplish that straight-bar a contracts
While returning, straight-bar 3 stretches out to simulate rear foot plantar pressure heelstrike.
Pressure stimulation straight panel directly stimulates the position of tested vola, cylinder a and cylinder b in fixed straight panel move
Dynamic, straight-bar a is directed at the center of forefoot, and straight-bar c is directed at the center of rear heel, is connected with straight-bar a by fixation
The position of run-on point a and run-on point c that is connected with straight-bar c in adjustment tank, this equipment are adapted to 25～60 yards of Chinese Industrial Standards (CIS)
Foot
Fixer for feet part and little leg holder can allow tested foot and shank to be fixed on remains stationary on fagging, so as to
Allow and tested can receive passive plantar pressure and stimulate.Angle adjuster can adjust the angle of fixer for feet part and little leg holder
Degree, from it is tested when lying down can bent lower limb receive foot sole stimulation, so as to more comfortable.
From the point of view of prior art contrast, the beneficial effects of the utility model are embodied in：
This utility model is capable of the plantar pressure of effectively simulation body gait and is changed, and compatible magnetic resonance environment, more
The tested resting state for keeping recumbency can be allowed to receive foot sole stimulation.
Description of the drawings
Logic module schematic diagrams of the Fig. 1 for this utility model device, solid arrow represent airflow direction, gait pressure simulation
All parts that module is included with enclosed with dashed lines come.
Fig. 2 is the structural representation of this utility model device.
Fig. 3 is that gait pressure simulation electromechanical device is placed on water mould magnetic resonance imaging figure a outer between magnetic resonance imaging and work
The gait pressure simulation electromechanical device of work is placed on the water mould magnetic resonance imaging figure b in magnetic resonance imaging.
Fig. 4 is the vola stagnation pressure force value comparison diagram of the vola stagnation pressure force value with actual walking of this utility model simulation.
Label in figure：1 Pneumatic pressure power module；2 control modules；3 nonferromagnetic tracheas；4 cylinder a；5 buffers；6 pore c；
7. pore a；8 pore b；9 fix straight panel；10 straight-bar a；11 run-on points a；12 straight-bar b；13 run-on points b；14. Pressure stimulation straight panels；
15 fixer for feet part；16 angle adjusters；17 little leg holders；18 straight-bar c；19 cylinder b；20 faggings；21 pore d；22 adjustment
Groove；23 run-on points c；24 gait pressure simulation modules.
Specific embodiment
This utility model is described further below by way of specific embodiment, to more fully understand this utility model,
But this utility model is not limited thereto.Experimental technique used in following embodiments if no special instructions, is conventional side
Method.In following embodiments, power supply used, material etc., if no special instructions, commercially obtain.
1. conventional implementing procedure is as follows：
1) using plastic hollow trachea connection Pneumatic pressure power module, control module, gait pressure simulation module, using aluminum
Into cylinder a and cylinder b, using cylinder made by nylon, buffer, fixer for feet part, little leg holder, angle adjuster,
Fagging, fixed straight panel, Pressure stimulation straight panel, run-on point and straight-bar；
2) in the outdoor placement Pneumatic pressure power module of magnetic resonance work and control module, and gait is set in control module
Analog parameter, make output two-way simulate gait air pressure be square-wave waveform pneumatic pressure pulses, highest air pressure be 0.24MPa, pulse
Frequency 1Hz, phase contrast are 90 °, dutycycle 50%, stimulate cycle duration 1s, stimulation number of repetition 7 times, stimulus intervalses time
30s；
3) gait pressure simulation module is placed on into magnetic resonance work indoor；
4) the tested entrance magnetic resonance operating room of right-handedness foot, after lying on the table, its right crus of diaphragm is placed on gait pressure simulation
In the fixer for feet part of module and little leg holder；
5) a kind of gtadient echo plane imaging sequence (GRE-EPI) is used on the 3T magnetic resonance imaging machines of GE, its collection
Parameter setting is as follows：The 3T magnetic resonance imaging machines of GE, a kind of gtadient echo plane imaging sequence (GRE-EPI), TR=2000ms,
TE=30ms, flip angle=90 °, matrix=64 × 64, thickness/spacing=4mm/1mm, FOV=24*24cm, 33 interlock axle position
Piece；
6) normal power supplies of 220V are connected to Pneumatic pressure power module, the input power of 24V is connected to control module, open control
System switch, allows gait pressure simulation module to start working.In a stimulation cycle, Pressure stimulation straight panel first can only stimulate tested
Rear heel, then stimulate tested forefoot and rear heel, then stimulate tested forefoot, finally neither stimulate forefoot
Rear heel is not stimulated.
2. magnetic resonance compatible measure of merit：
In order to check the magnetic resonance compatibility of this device, we between magnetic resonance imaging in placed water mould and carry out magnetic resonance
Compatible sweep test, sweep parameter are as follows：The 3T magnetic resonance imaging machines of GE, a kind of gtadient echo plane imaging sequence (GRE-
EPI), TR=2000ms, TE=30ms, flip angle=90 °, matrix=64 × 64, thickness/spacing=4mm/1mm, FOV=24*
24cm2, 33 alternating axis bit slices.This test have selected 2 kinds of situations carries out control experiment：1. gait pressure simulation electromechanical device is put
Put the scanning for entering water-filling mould outside between magnetic resonance imaging (referring to Fig. 3 a)；2. the gait pressure simulation electromechanical device for working
It is placed on the scanning (referring to Fig. 3 b) of the enterprising water-filling mould of magnetic resonance imaging platform.Contrast and experiment (referring to Fig. 3), we can send out
Now no significant difference therebetween, illustrates that this gait pressure simulation electromechanical device has magnetic resonance compatibility, does not interfere with magnetic
The quality of resonance image.
3. body gait plantar pressure simulates measure of merit：
In order to check the effect of this unit simulation gait plantar pressure, plantar pressure measurement shoe pad (pressure is we used
Number of probes=99, sample frequency=2ms gather pressure limit=0～1000N, precision=0.01N) measuring tested reality
Vola gross pressure and the tested vola gross pressure being subject in a cycle on this device when border is walked.One tested (age
=23 years old, body weight=60kg) typical consequence be that the gait pressure time sequence of actual walking and gait simulate plantar pressure
Seasonal effect in time series Pearson's correlation coefficient is 0.87 (referring to Fig. 4), illustrates that this device has the feasible of simulation gait plantar pressure
Property.
Claims (7)
1. a kind of magnetic resonance compatible electromechanics stimulating apparatus of simulation body gait plantar pressure, by Pneumatic pressure power module (1), control
Module (2), gait pressure simulation module (24) composition, it is characterised in that：Gait pressure simulation module (24) is by cylinder a (4), gas
Cylinder b (8), buffer (5), fixer for feet part (15), little leg holder (17), angle adjuster (16), fixed straight panel (9), pressure
Power stimulate straight panel (14), straight-bar a (10), straight-bar b (12), straight-bar c (18) composition, cylinder a (4) and cylinder b (8) respectively with straight-bar
A (10) is fixedly connected with straight-bar c (18), and straight-bar a (10), straight-bar b (12) and straight-bar c (18) are movable with Pressure stimulation straight panel (14)
Connection, is not in contact between fixer for feet part (15) and Pressure stimulation straight panel (14), and fixed straight panel (9) is fixed with fagging (20) to be connected
Connect, cylinder a (4), cylinder b (8) and buffer (5) are fixed on fixed straight panel (9).
2. it is according to claim 1 simulation body gait plantar pressure magnetic resonance compatible electromechanics stimulating apparatus, its feature
It is：Between Pneumatic pressure power module (1), control module (2), gait pressure simulation module (24) with nonferromagnetic trachea (3) even
Connect, gait pressure simulation module (24) is by high pressure air drives, and whole parts of gait pressure simulation module (24) are by non-
Ferrimagnet is made.
3. it is according to claim 1 simulation body gait plantar pressure magnetic resonance compatible electromechanics stimulating apparatus, its feature
It is：By electric drive, output maximum pressure is 0.8Mpa to Pneumatic pressure power module (1).
4. it is according to claim 1 simulation body gait plantar pressure magnetic resonance compatible electromechanics stimulating apparatus, its feature
It is：By electric drive, input voltage is 12～24V to control module (2), and input current is 0.5～1A, exports maximum pressure and is
0.8Mpa。
5. it is according to claim 1 simulation body gait plantar pressure magnetic resonance compatible electromechanics stimulating apparatus, its feature
It is：Gait pressure simulation module (24) by high pressure air drives, the output pressure scope of Pressure stimulation straight panel (14) is 0～
800N。
6. it is according to claim 1 simulation body gait plantar pressure magnetic resonance compatible electromechanics stimulating apparatus, its feature
It is：Gait pressure simulation module (24) includes fixer for feet part (15), little leg holder (17), fixer for feet part (15) and little
By angle adjuster (16) connection, fixer for feet part (15) bottom surface and little leg holder (17) abdominal part between leg holder (17)
Angular range scalable is simultaneously fixed as 30 °～90 °.
7. it is according to claim 1 simulation body gait plantar pressure magnetic resonance compatible electromechanics stimulating apparatus, its feature
It is：Cylinder a (4) and cylinder b (19) can be moved the position on fixed straight panel (9), in straight-bar a (10) alignment forefoots
Heart position, straight-bar c (18) are directed at the center of rear heel, and Pressure stimulation straight panel (14) is contacted with tested vola.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620335160.6U CN206044741U (en) | 2016-04-20 | 2016-04-20 | A kind of magnetic resonance compatible electromechanics stimulating apparatus of simulation body gait plantar pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620335160.6U CN206044741U (en) | 2016-04-20 | 2016-04-20 | A kind of magnetic resonance compatible electromechanics stimulating apparatus of simulation body gait plantar pressure |
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| Publication Number | Publication Date |
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| CN206044741U true CN206044741U (en) | 2017-03-29 |
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| CN201620335160.6U Withdrawn - After Issue CN206044741U (en) | 2016-04-20 | 2016-04-20 | A kind of magnetic resonance compatible electromechanics stimulating apparatus of simulation body gait plantar pressure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105963023A (en) * | 2016-04-20 | 2016-09-28 | 北京大学 | Magnetic-resonance-compatible electromechanical stimulation device for simulating pressure of human gait to foot sole |
| CN111616710A (en) * | 2020-06-09 | 2020-09-04 | 中科绿谷（深圳）医疗科技有限公司 | Experimental stimulation device and stimulation experimental equipment with same |
-
2016
- 2016-04-20 CN CN201620335160.6U patent/CN206044741U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105963023A (en) * | 2016-04-20 | 2016-09-28 | 北京大学 | Magnetic-resonance-compatible electromechanical stimulation device for simulating pressure of human gait to foot sole |
| CN111616710A (en) * | 2020-06-09 | 2020-09-04 | 中科绿谷（深圳）医疗科技有限公司 | Experimental stimulation device and stimulation experimental equipment with same |
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