CN203724633U - Real-time feedback intelligent electrical stimulation device - Google Patents
Real-time feedback intelligent electrical stimulation device Download PDFInfo
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- CN203724633U CN203724633U CN201420043873.6U CN201420043873U CN203724633U CN 203724633 U CN203724633 U CN 203724633U CN 201420043873 U CN201420043873 U CN 201420043873U CN 203724633 U CN203724633 U CN 203724633U
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- 230000000638 stimulation Effects 0.000 title claims abstract description 48
- 238000000034 method Methods 0.000 claims abstract description 7
- 230000004936 stimulating effect Effects 0.000 claims description 19
- 230000033001 locomotion Effects 0.000 abstract description 5
- 230000005611 electricity Effects 0.000 description 8
- 230000007794 irritation Effects 0.000 description 8
- 238000001914 filtration Methods 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000003321 amplification Effects 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 210000003205 muscle Anatomy 0.000 description 3
- 230000002232 neuromuscular Effects 0.000 description 3
- 238000003199 nucleic acid amplification method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 206010008190 Cerebrovascular accident Diseases 0.000 description 1
- 206010062575 Muscle contracture Diseases 0.000 description 1
- 206010033799 Paralysis Diseases 0.000 description 1
- 208000006011 Stroke Diseases 0.000 description 1
- 239000000556 agonist Substances 0.000 description 1
- 230000003042 antagnostic effect Effects 0.000 description 1
- 230000002490 cerebral effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 208000006111 contracture Diseases 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 230000001537 neural effect Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
- 238000002560 therapeutic procedure Methods 0.000 description 1
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Abstract
The utility model discloses a real-time feedback intelligent electrical stimulation device. The real-time feedback intelligent electrical stimulation device comprises a human contact device, a channel selection switch, a myoelectricity collector, a stimulation output device, and a microprocessor. The human contact device integrates stimulation output and myoelectricity collection into a same channel; the channel selection switch is used for switching between the myoelectricity collection and the stimulation output of the working state of the human contact device; the myoelectricity collector collects and processes human myoelectricity signal; and the stimulation output device outputs a stimulation pulse output. The human contact device, the myoelectricity collector, the stimulation output device, the microprocessor are connected with the channel selection switch; and the myoelectricity collector, the stimulation output device are also connected with the microprocessor. According to the utility model, generally the stimulation and collection are carried out at the same time the subjective exercise willingness and demand of the patient can be fully reflected in the real-time manner; and therefore the patient is assisted to complete the intended movement.
Description
Technical field
This utility model belongs to medical instruments field, particularly relates to a kind of Real-time Feedback intelligent electric stimulating apparatus.
Background technology
Neuromuscular electrical stimulation technology is developed so far, and has experienced following three developmental stage:
First generation electrical stimulation technology: open loop electricity irritation, the stimulus parameter (stimulus intensity, frequency, pulsewidth etc.) that electrostimulator sets in advance according to therapist carries out the stimulation of certain hour to patient.This stimulation mode has only been realized nervimuscular simple treatment effect, and the aspect that maintains of myoarchitecture and function is had to positive role.But in therapeutic process, patient is passive receive treatment, can not realize the mutual of patient and equipment.So therapeutic effect is only embodied on the low order function of neural and motor system.
Second filial generation electrical stimulation technology: EMG feedback electrical stimulation technology is the product of the combination of common EMG biofeedback and neuromuscular electrical stimulation, is called again neuromuscular electricity irritation or myoelectricity triggering electricity irritation (EMG stim) that electromyographic signal triggers.It can detect the faint electromyographic signal that patients with cerebral apoplexy paralyzed limbs is remaining, in the time that patient makes great efforts to make its electromyographic signal of paralysing muscle group self to reach ad hoc threshold value, instrument will be exported one group of galvanism automatically, impel and suffer from flesh contraction, strengthen it and want the action of doing and being difficult to, and can cause obvious joint motions, the passive exercise now causing due to output current will organically be melted among patient's active exercise.
But due to technical reason, existing myoelectricity triggers electrical stimulation apparatus and all has a shortcoming: in the time carrying out electricity irritation, equipment is in stimulation state, at this moment, be the collection of not carrying out electromyographic signal.Only have when after a stimulation end cycle, could continue the electromyographic signal collection of next circulation.Because the collection of stimulation and electromyographic signal can not be carried out simultaneously, so the feedback of setting up exists a defect.In addition, the amplitude that the sending of electricity irritation only embodied electromyographic signal reaches threshold value, and actual stimulus intensity cannot regulate according to the electromyographic signal intensity of actual patient.So technique also exists optimizes improved potentiality.
Third generation electrical stimulation technology: be exactly this utility model to realize, for second filial generation electrical stimulation technology moderate stimulation and electromyographic signal can not gather simultaneously, stimulus intensity can not carry out improved with the shortcoming of electromyographic signal intensity adjustments.This utility model utilizes two blinks between boost pulse, and switching channel selector switch carries out myoelectricity collection fast.Thereby, in macroscopic view, in realization stimulation and collection, carry out, and then realize stimulus parameter and automatically make corresponding adjusting with the variation of patient's electromyographic signal.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of Real-time Feedback intelligent electric stimulating apparatus, the upper realization when stimulating and gather of its macroscopic view carried out, in real time, intactly reflect the subjective motion wish of patient and requirement, so helping patient completes and wants the action carried out, allow patient follow one's bent, easy to use.
This utility model solves above-mentioned technical problem by following technical proposals: a kind of Real-time Feedback intelligent electric stimulating apparatus, it is characterized in that, it comprises that collection stimulates the human body contact device that output and myoelectricity collection are same passage, myoelectricity harvester or the channel selector switch that stimulates follower for switching the duty of human body contact device, the myoelectricity harvester of acquisition process human body electromyographic signal, produce the stimulation follower of boost pulse output, microprocessor, human body contact device, myoelectricity harvester, stimulate follower, microprocessor is all connected with channel selector switch, myoelectricity harvester, stimulate follower to be also all connected with microprocessor.
Preferably, described human body contact device includes two with upper channel.
Preferably, each passage of described human body contact device connects one group of electrode slice, and every group of electrode slice comprises three electrode slices.
Preferably, described myoelectricity harvester comprises instrument amplifier, wave trap and wave filter, and the outfan of instrument amplifier connects wave trap, and the outfan of wave trap connects wave filter.
Preferably, described stimulation follower comprises stimulus waveform selector, stimulus waveform amplifier and the transformator of the output stimulus waveform mode of choosing waveform amplifier, described stimulus waveform amplifier is connected with microprocessor, and the outfan of described stimulus waveform amplifier is connected with transformator.
Positive progressive effect of the present utility model is: this utility model has been realized myoelectricity collection and exported synchronizeing in macroscopic view with electricity irritation, by detecting the myoelectricity of target site, and give the electricity irritation of corresponding power according to the size of myoelectricity, allow patient complete corresponding limb motion, for improving the randomness of agonist and the contracture of inhibition Antagonistic muscle, can obtain better rehabilitation effect.
Brief description of the drawings
Fig. 1 is the schematic diagram of this utility model device;
Fig. 2 is the electromyographic signal and the schematic diagram that stimulates output relation of this utility model device;
Fig. 3 is a channel selector switch circuit diagram of this utility model device.
Detailed description of the invention
Below technical solutions of the utility model are elaborated, but protection domain of the present utility model is not limited to described embodiment.
As shown in Figure 1, this utility model provides a kind of real-time intelligent type electrical stimulation device, it comprises human body contact device 1, channel selector switch 2, myoelectricity harvester 3, stimulate follower 4, microprocessor 5, human body contact device 1, myoelectricity harvester 3, stimulate follower 4, microprocessor 5 is all connected with channel selector switch 2, myoelectricity harvester 3, stimulate follower 4 to be also all connected with microprocessor 5, described human body contact device 1 is that collection stimulates the electrode assembly that output and myoelectricity collection are same passage, channel selector switch 2 is myoelectricity harvester 3 or stimulation follower 4 for switching the duty of human body contact device 1, described myoelectricity harvester 3 acquisition process human body electromyographic signals, described stimulation follower 4 produces boost pulse output, described microprocessor 5 is for the electromyographic signal of A/D conversion myoelectricity harvester 3 and the stimulus waveform of control stimulation follower 4.Human body contact device 1 includes two with upper channel.Each passage of human body contact device 1 connects one group of electrode slice, and every group of electrode slice comprises three electrode slices.
Wherein, myoelectricity harvester 3 comprises instrument amplifier 31, wave trap 32 and wave filter 33, the outfan of instrument amplifier 31 connects wave trap 32, the outfan of wave trap 32 connects wave filter 33, described instrument amplifier 31 amplifies the myoelectricity differential signal being gathered by human body contact device 1, civil power power frequency in described wave trap 32 filtering electromyographic signals is disturbed, and described wave filter 33 filtering outputs are passed to microprocessor 5 and carried out A/D conversion process.
Wherein, stimulate follower 4 to comprise stimulus waveform selector 41, stimulus waveform amplifier 42 and transformator 43, described stimulus waveform amplifier 42 is connected with microprocessor 5, microprocessor 5 is by calculating the RMS value of the electromyographic signal ADC in certain hour, again by gathering the corresponding relation output stimulus waveform between stimulation, described stimulus waveform selector 41 is chosen the output stimulus waveform mode of waveform amplifier 42, the outfan of described stimulus waveform amplifier 42 is connected with transformator 43, after being amplified again, stimulating current switches to stimulation output state by channel selector switch 2, stimulating current is input to human body by human body contact device 1 to stimulate.Stimulus waveform selector 41 can be controlled output waveform for just unidirectional ripple, negative unidirectional ripple or two-way ripple.
The handoff response time of channel selector switch 2 is not more than 1 millisecond, and ends and be withstand voltagely not less than 500 volts, and conducting resistance is not more than 30 ohm.
Myoelectricity harvester 3 carries out notch filter, amplification and 10～1000Hz bandpass filtering treatment to electromyographic signal.
Human body contact device 1 can adopt general electrical stimulation apparatus current electrode sheet used.Channel selector switch 2 can adopt the G3VM-601BY-EY chip of Omron Corp.
The stimulating method of real-time intelligent type electrical stimulation device comprises the following steps:
Step 1, the electrode slice of human body contact device is contacted with human body, channel selector switch 1 is selected myoelectricity drainage pattern, the bandpass filtering treatment of amplification, the 50Hz notch filter of wave trap 32 and the 10～1000Hz of wave filter 33 of the instrument amplifier 31 by myoelectricity harvester 3, electromyographic signal after treatment is transferred to microprocessor 5 and carries out A/D conversion, and calculated the RMS(Root Mean Square of electromyographic signal in a period of time by microprocessor 5, root-mean-square) be worth, and preserve minima and the maximum of electromyographic signal intensity RMS.
Step 2, channel selector switch 2 is switched to stimulation output mode, amplify by the stimulus waveform amplifier 42 that stimulates follower 4 stimulus signal of being exported by microprocessor 5, can control stimulus waveform by stimulus waveform selector 41 is forward wave, negative wave or two-way ripple, stimulus waveform is finally amplified on the electrode that outputs to human body contact device 1 muscle of human body is stimulated by transformator 43, in stimulating course, regulate the intensity of stimulating current, and preserve human body the minimal stimulation current value that can experience and the maximal stimulus current value that can accept.
Step 3, allow system works at continuous feedback electricity irritation state, be to switch to stimulation output state after passage first switches to the myoelectricity acquisition state electromyographic signal of collection a period of time, the RMS value of myoelectricity in calculating fast during this period of time by microprocessor in this section of delay time switching, again according to the corresponding relation between the electromyographic signal shown in Fig. 2 and stimulation output, calculate stimulation output current value, and stimulating output state to stimulate with this current value, allow again afterwards passage switch to myoelectricity acquisition state, so circle collection, stimulate the switching of duty, because switching time is very fast, so carry out realize stimulation and collection in macroscopic view in, and then realize stimulus parameter and automatically make corresponding adjusting with the variation of patient's electromyographic signal, help patient to complete the action of having wanted, really allow patient follow one's bent.
As shown in Figure 3, be the circuit diagram of a channel selector switch of well-behaved utility model device.Human body contact device 1 has three electrode wires, and wherein one is ground wire, and other two are holding wire.Every holding wire can be operated in two states, but must be in same state at two holding wires of synchronization.So every holding wire is controlled gating by two light insulation relays by microprocessor 5.In the time of first and the work of the 3rd light insulation relay of microprocessor 5 control channel selector switches 2,, as the SEMG_A1 in Fig. 3 and SEMG_A2 signal are strobed, human body contact device 1 is operated in myoelectricity acquisition state; In the time of second of microprocessor 5 control channel selector switches 1 and the 4th light insulation relay work, STIM_A1 and STIM_A2 signal are strobed, and human body contact device 1 is operated in stimulation output state.The handoff response time of channel selector switch is not more than 1 millisecond, and is withstand voltagely not less than 500 volts, and conducting resistance is not more than 30 ohm.
Human body contact device can be operated in myoelectricity collection and stimulate two kinds of duties of output, and its state is controlled by channel selector switch; Myoelectricity harvester is realized the processing of signal amplification filtering, stimulates follower to realize the unidirectional ripple of forward, the unidirectional ripple of negative sense and the output of two-way ripple stimulating current; Microprocessor is realized myoelectricity acquired signal A/D conversion, and stimulates periodic duty like this according to myoelectricity acquired signal and the stimulating current that stimulates corresponding relation between output current to export suitable size.This utility model is reflected in the stimulating current of output by microprocessor Real-time Collection human body electromyographic signal the real-time RMS value of calculating, make the waveform envelope of electric stimulation pulse consistent with the RMS value curvilinear trend that gathers myoelectricity, be wish and the requirement that this utility model can in real time, intactly reflect the subjective motion of patient, so helping patient completes and wants the action carried out, meet contemporary FES(Functional Electrical Stimulation, functional electric stimulation) developing direction of rehabilitation field.
As mentioned above, although represented and explained this utility model with reference to specific preferred embodiment, it shall not be construed as the restriction to this utility model self.Not departing under the spirit and scope prerequisite of the present utility model of claims definition, can make a variety of changes in form and details it.
Claims (5)
1. a Real-time Feedback intelligent electric stimulating apparatus, it is characterized in that, it comprises that collection stimulates the human body contact device that output and myoelectricity collection are same passage, myoelectricity harvester or the channel selector switch that stimulates follower for switching the duty of human body contact device, the myoelectricity harvester of acquisition process human body electromyographic signal, produce the stimulation follower of boost pulse output, microprocessor, human body contact device, myoelectricity harvester, stimulate follower, microprocessor is all connected with channel selector switch, myoelectricity harvester, stimulate follower to be also all connected with microprocessor.
2. Real-time Feedback intelligent electric stimulating apparatus as claimed in claim 1, is characterized in that, described human body contact device includes two with upper channel.
3. Real-time Feedback intelligent electric stimulating apparatus as claimed in claim 2, is characterized in that, each passage of described human body contact device connects one group of electrode slice, and every group of electrode slice comprises three electrode slices.
4. Real-time Feedback intelligent electric stimulating apparatus as claimed in claim 1, is characterized in that, described myoelectricity harvester comprises instrument amplifier, wave trap and wave filter, and the outfan of instrument amplifier connects wave trap, and the outfan of wave trap connects wave filter.
5. Real-time Feedback intelligent electric stimulating apparatus as claimed in claim 1, it is characterized in that, described stimulation follower comprises stimulus waveform selector, stimulus waveform amplifier and the transformator of the output stimulus waveform mode of choosing waveform amplifier, described stimulus waveform amplifier is connected with microprocessor, and the outfan of described stimulus waveform amplifier is connected with transformator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201420043873.6U CN203724633U (en) | 2014-01-23 | 2014-01-23 | Real-time feedback intelligent electrical stimulation device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420043873.6U CN203724633U (en) | 2014-01-23 | 2014-01-23 | Real-time feedback intelligent electrical stimulation device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111481830A (en) * | 2020-04-24 | 2020-08-04 | 上海交通大学 | Closed-loop electrical nerve stimulation system and method for setting parameters of closed-loop electrical nerve stimulation |
| CN111632273A (en) * | 2020-06-24 | 2020-09-08 | 江苏德长医疗科技有限公司 | Surface myoelectricity evaluation diagnosis and biofeedback electrical stimulation treatment method |
| CN116531003A (en) * | 2023-06-20 | 2023-08-04 | 天津大学 | Surface myoelectricity acquisition system under functional electrical stimulation |
| CN117379690A (en) * | 2023-12-11 | 2024-01-12 | 中国科学院自动化研究所 | Electrical stimulation system based on multichannel array electrode |
-
2014
- 2014-01-23 CN CN201420043873.6U patent/CN203724633U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111481830A (en) * | 2020-04-24 | 2020-08-04 | 上海交通大学 | Closed-loop electrical nerve stimulation system and method for setting parameters of closed-loop electrical nerve stimulation |
| CN111632273A (en) * | 2020-06-24 | 2020-09-08 | 江苏德长医疗科技有限公司 | Surface myoelectricity evaluation diagnosis and biofeedback electrical stimulation treatment method |
| CN111632273B (en) * | 2020-06-24 | 2023-04-18 | 江苏德长医疗科技有限公司 | Surface myoelectricity evaluation diagnosis and biofeedback electrical stimulation treatment method |
| CN116531003A (en) * | 2023-06-20 | 2023-08-04 | 天津大学 | Surface myoelectricity acquisition system under functional electrical stimulation |
| CN116531003B (en) * | 2023-06-20 | 2024-04-19 | 天津大学 | Surface myoelectricity acquisition system under functional electrical stimulation |
| CN117379690A (en) * | 2023-12-11 | 2024-01-12 | 中国科学院自动化研究所 | Electrical stimulation system based on multichannel array electrode |
| CN117379690B (en) * | 2023-12-11 | 2024-03-15 | 中国科学院自动化研究所 | Electrical stimulation system based on multichannel array electrode |
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| C14 | Grant of patent or utility model | ||
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Address after: 200245 No. 68, Nansha Road, Shanghai, Minhang District Patentee after: NCC MEDICAL CO.,LTD. Address before: 200240 Shanghai city Minhang District Jianchuan Road No. 940 Building No. 1 5 floor Patentee before: NCC MEDICAL CO.,LTD. |
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Granted publication date: 20140723 |