CN101869739A - Self-adaptive control skin surface electrical stimulation device and method - Google Patents
Self-adaptive control skin surface electrical stimulation device and method Download PDFInfo
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- CN101869739A CN101869739A CN201010231731A CN201010231731A CN101869739A CN 101869739 A CN101869739 A CN 101869739A CN 201010231731 A CN201010231731 A CN 201010231731A CN 201010231731 A CN201010231731 A CN 201010231731A CN 101869739 A CN101869739 A CN 101869739A
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Abstract
The invention discloses a self-adaptive control skin surface electrical stimulation device, which uses a stimulation electrode to act on skin surfaces. The device is characterized by comprising a voltage regulating circuit, an electric pulse generation circuit, a stimulation electrode, a current measuring circuit and a skin resistance calculating unit, wherein a human body is stimulated by manually regulating the initial voltage value of the stimulation circuit; the current measuring circuit detects a current input into the human body; the current voltage and current are used to calculate the resistance of the skin; the voltage is regulated according to the relationship between feeling and a stimulation strength, so that the feeling of a person can keep constant. Compared with the prior art, the system has the advantages that: as a body surface electrical stimulation mode is adopted, when the device is used, an electrical stimulation electrode is contacted with the body surface, namely the needle electrode does not penetrate the human body, so the person has no pains and the use is convenient; and the current measuring circuit reduces noises and acquires effective current values correctly, so high-accuracy self-adaptive control of electrical stimulation can be realized under a complex actual application condition.
Description
Technical field
The present invention relates to the rehabilitation engineering field, particularly a kind of device and method that utilizes electrical stimulation signal to carry out human rehabilitation treatment.
Background technology
Electric pulse by target area or deep tissues to the human body skin surface discharge different qualities can make the people obtain different sensation, can slow down people's pain, also can replace traditional acupuncture to play the effect of treatment disease.In order to allow user feel constant relatively stimulus intensity, needing that exploitation is a kind of can either the perception skin properties, also can export the device of suitable stimulus signal, so that the use in daily life of surface electrical stimulation mode.
Mainly contain two kinds of electrical stimulus patternses at present: transcutaneous electrostimulation, surface electrical stimulation.Transcutaneous electrostimulation is meant needle electrode was stung skin, directly stimulates people's muscle and deep tissue, nerve and its hetero-organization.Surface electrical stimulation is meant that the electrode for placing skin surface applies electric pulse, directly stimulates tissues such as the skin of people's body surface and muscle group.Because transcutaneous electrostimulation need sting skin with needle electrode, can make us feeling under the weather actual use inconvenience during use.And surface electrical stimulation only needs electric stimulation electrode is attached to body surface when using, and is therefore easy to use.
Owing to reasons such as perspirations, human body skin impedance meeting changes, if stimulation voltage can not change automatically, will cause flowing into the variation of intravital electric energy, thereby the stimulus intensity that the people is experienced changes.Therefore, carrying out the adjustment of adaptive intensity of electric stimulus according to this stimulus intensity variation, is problem demanding prompt solution of the present invention.
Summary of the invention
In view of the technical problem that exists in the existing product, the present invention proposes a kind of skin surface electrical stimulation device and method of Self Adaptive Control, by perception human body skin characteristic, realize adjusting automatically skin irritation voltage according to human muscle's characteristic, under the human body skin impedance changes situation, still can adjust the intensity of electric stimulus of skin surface adaptively, the stimulus intensity that allows the people experience in rehabilitation remains unchanged.
The present invention proposes a kind of skin surface electrical stimulation device of Self Adaptive Control, act on skin surface by stimulating electrode, it is characterized in that described electrical stimulation device comprises: voltage-regulating circuit, electric pulse generative circuit, stimulating electrode, current measurement circuit, Skin Resistance computing unit;
Described voltage-regulating circuit links to each other with described electric pulse generative circuit input; Described electric pulse generative circuit outfan links to each other with described stimulating electrode input; The outfan of described stimulating electrode links to each other with the input of described current measurement circuit, and this outfan acts on skin surface simultaneously; The outfan of described current measurement circuit links to each other with the input of described Skin Resistance computing unit, and its outfan links to each other with described voltage-regulating circuit simultaneously.
The invention allows for a kind of skin surface electrical stimulation method of Self Adaptive Control, it is characterized in that, this method may further comprise the steps:
Voltage initial value by the manual setting stimulation circuit stimulates human body;
Current measurement circuit detects the electric current of input human body;
Utilize voltage and current at this moment to calculate the impedance of skin;
According to the sensation and the relation of stimulus intensity, adjust voltage automatically, make that the people's feel to remain unanimity;
Described digital regulation resistance is used to change the ADJ end of REG LR12 and the resistance ratio of GND end by Digital Signals, realizes just can adjusting the voltage of outfan as long as the voltage of ADJ end is adjusted, thereby realizes automatic Regulation.
The present invention compared with prior art, this system adopts surface electrical stimulation mode, only needs during use electric stimulation electrode is attached to body surface, does not need needle electrode is thrust human body, does not have misery, and is therefore easy to use; Current measurement circuit reaches noise reduction and correctly obtains effective current values, under the practical application condition of complexity, can realize the Self Adaptive Control of electricity irritation, the control accuracy height.
Description of drawings
Fig. 1 is the overall structure figure of the skin surface electrical stimulation device of Self Adaptive Control of the present invention;
Fig. 2 is the voltage-regulating circuit figure of the skin surface electrical stimulation device of Self Adaptive Control of the present invention;
Fig. 3 is the current measurement circuit figure of the skin surface electrical stimulation device of Self Adaptive Control of the present invention;
Fig. 4 is the H bridge circuit of electric pulse generative circuit of the skin surface electrical stimulation device of Self Adaptive Control of the present invention.
The specific embodiment
Fig. 1 is the overall structure figure of this electric stimulation, and this electrical stimulation circuit is made of voltage-regulating circuit, electric pulse generative circuit, stimulating electrode, current measurement circuit, Skin Resistance computing unit.
By the voltage initial value of manual setting stimulation circuit, electric stimulation changed according to Skin Resistance afterwards, adjusts the voltage magnitude of boost pulse automatically when this electric stimulation used;
The current feedback function is by voltage-regulating circuit, current measurement circuit and Skin Resistance computing unit are realized: stimulate human body with some voltage initial values of setting, the electric current that flow into human body this moment can be detected (current intensity is showed by voltage) by current measurement circuit, utilize voltage and current at this moment just can calculate the impedance of skin, relation according to known sensation and stimulus intensity, adjust voltage, make that the people's feel to remain unanimity.The relation of said here known sensation and stimulus intensity can preestablish or be drawn by experiment.
As shown in Figure 2, be voltage-regulating circuit.The principle of voltage adjustment is: the voltage adjustment recently realizes by the resistance that changes ADJ end and GND end.Output voltage is by formula (1) decision, and wherein Rx is the resistance value between ADJ end shown in Fig. 2 and the GND.
The present invention has adopted digital regulation resistance (as the MAX among Fig. 2), and is different with traditional mechanical variable impedance, and digital regulation resistance can pass through Digital Signals.Find that in test digital regulation resistance can not be used as simple variableimpedance and use, but be suitable for dividing potential drop.Therefore we utilize voltage between the ADJ end of power supply voltage stabilizing chip REG LR12 and the outfan to remain on this characteristic of 1.2V always in this voltage-regulating circuit, as long as the voltage of ADJ end is adjusted, just can adjust the voltage of outfan, thereby realize automatic Regulation.Here digital regulation resistance is being brought into play the effect of potentiometer.The calculating of output voltage is suc as formula (2).The V of this moment
Dig-potBe the output end voltage of digital regulation resistance.
V
out＝V
dig-pot+1.2 (2)
Because the highest withstand voltage of the MAX digital regulation resistance that adopts in the native system is 30V, therefore as shown in Figure 2, insertion switch S2, S3 and S4, by suitably switching this three switches, just can realize both having guaranteed that output voltage reached 88V, also can guarantee the withstand voltage 30V of being no more than of digital regulation resistance.S4 is ON, and when S2 and S3 were OFF, output voltage range was 1.2V-28V (being measured value later on); S3 is ON, and when S2 and S4 were OFF, output voltage range was about 28V-58V; S2 is ON, and when S3 and S4 were OFF, output voltage range was about 58V-88V.Therefore the MAX digital regulation resistance has 7 control register, voltage can be divided into 127 stages to export, and the actual result who measures with circuit tester shows that the control accuracy of voltage is about 0.2-0.3V.(such as, in this output area of 1.2-28v, the voltage of output can be 1.2v, 1.4v, and 1.6v, 1.8v ..., 28v).
As shown in Figure 3-be the waveform of current measurement circuit figure and measurement, in order to measure the electric current that flows into human body, series connection measuring resistance Rsense and human body.When the electric current that flows into human body changes, also will change according to the voltage at Ohm's law Rsense two ends.Therefore just can calculate electric current as long as measure the voltage at measuring resistance Rsense two ends.
Because output waveform can be the square wave (being not limited only to square wave) of high frequency, therefore contain very high high order composition, thereby make the current value that detects have very big noise, in order to reach noise reduction and correctly to obtain current value, between the AD converter that detects current output terminal and CPU, added low pass filter LPT.At this moment, the big more precision that helps to improve current measurement more of the value of measuring resistance Rsense, but can influence the effect (owing to having reduced the electric current that flows into human body) that stimulates human body too greatly on the contrary, so we have adopted about 1 ohm resistance.
As shown in Figure 4, be the electric pulse generative circuit.The electric pulse generative circuit is responsible for generating the stimulation electric pulse.The circuit output adopts the H bridge circuit to form its concrete principle.The H bridge circuit adopts the SLA motor drive ic.As shown in the figure circuit+,-represent that with empty arrow and solid arrow arrow is represented direction of current flow respectively.When all gate are off, no-output.Gate1,4 is on, and 2,3 when being off, and direction of current flow is shown in the empty arrow of figure below; On the contrary, gate1,4 is off, and 2,3 when being on, and direction of current flow is shown in the solid arrow of figure below.When four gate all are on, can burn out circuit, therefore in actual program, only set aforementioned three kinds of situations.
Above content only is embodiments of the invention, and its purpose is not the restriction that is used for system and method proposed by the invention, and protection scope of the present invention is as the criterion with claim.Under the situation that does not break away from the spirit and scope of the present invention; those skilled in the art all should drop within protection scope of the present invention its all conspicuous modification or variation about form and details of carrying out under the situation that does not depart from scope and spirit of the present invention.
Claims (8)
1. the skin surface electrical stimulation device of a Self Adaptive Control, act on skin surface by stimulating electrode, it is characterized in that described electrical stimulation device comprises: voltage-regulating circuit, electric pulse generative circuit, stimulating electrode, current measurement circuit, Skin Resistance computing unit;
Described voltage-regulating circuit links to each other with described electric pulse generative circuit input; Described electric pulse generative circuit outfan links to each other with described stimulating electrode input; The outfan of described stimulating electrode links to each other with the input of described current measurement circuit, and this outfan acts on skin surface simultaneously; The outfan of described current measurement circuit links to each other with the input of described Skin Resistance computing unit, and its outfan links to each other with described voltage-regulating circuit simultaneously.
2. the skin surface electrical stimulation device of Self Adaptive Control as claimed in claim 1 is characterized in that, described voltage-regulating circuit comprises digital regulation resistance and power supply voltage stabilizing chip, output voltage V
OutComputing formula is:
Wherein, Rx is the resistance value between power supply voltage stabilizing chip ADJ end and the GND, I
ADJOutput current for power supply voltage stabilizing chip ADJ end; R4 be protective current overload smash circuit with the placed in-line resistance of digital regulation resistance.
3. the skin surface electrical stimulation device of Self Adaptive Control as claimed in claim 1 is characterized in that, described current measurement circuit comprises measuring resistance, described measuring resistance and the series connection of human body surface skin.
4. the skin surface electrical stimulation device of Self Adaptive Control as claimed in claim 3 is characterized in that, described current measurement circuit also comprises low pass filter, is arranged between the AD converter that detects current output terminal and CPU.
5. the skin surface electrical stimulation device of Self Adaptive Control as claimed in claim 3 is characterized in that, described measuring resistance adopts nearly 1 ohm resistance.
6. the skin surface electrical stimulation device of Self Adaptive Control as claimed in claim 1 is characterized in that, described electric pulse generative circuit adopts the H bridge circuit to form.
7. the skin surface electrical stimulation method of a Self Adaptive Control is characterized in that, this method may further comprise the steps:
Voltage initial value by the manual setting stimulation circuit stimulates human body;
Current measurement circuit detects the electric current of input human body;
Utilize voltage and current at this moment to calculate the impedance of skin;
According to the relation of known sensation and stimulus intensity, adjust voltage automatically, make that the people's feel to remain unanimity;
Described digital regulation resistance is used to change the ADJ end of REG LR12 and the resistance ratio of GND end by Digital Signals, realizes just can adjusting the voltage of outfan as long as the voltage of ADJ end is adjusted, thereby realizes automatic Regulation.
8. the skin surface electrical stimulation method of Self Adaptive Control as claimed in claim 7 is characterized in that, the relation of described known sensation and stimulus intensity draws by preestablishing or testing.
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| CN201010231731A CN101869739A (en) | 2010-07-20 | 2010-07-20 | Self-adaptive control skin surface electrical stimulation device and method |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102125431A (en) * | 2011-04-02 | 2011-07-20 | 北京品驰医疗设备有限公司 | Nerve plexus stimulation system, nerve plexus stimulator and nerve plexus stimulation method |
| CN103930161A (en) * | 2011-11-14 | 2014-07-16 | 路易斯·莫恩 | Stimulation apparatus |
| WO2015061276A1 (en) * | 2013-10-23 | 2015-04-30 | Gonterman Wayne D | Cosmetology device |
| CN104918653A (en) * | 2013-01-14 | 2015-09-16 | 菲力格林公司 | Electrical stimulation and/or iontophoresis device having means for varying the voltage on the basis of the resistivity of the skin of a user |
| CN105120945A (en) * | 2013-03-15 | 2015-12-02 | 迈恩泰克公司 | Electrical stimulation system with pulse control |
| CN106139392A (en) * | 2016-01-15 | 2016-11-23 | 深圳市科瑞康实业有限公司 | Neuromuscular electric stimulation therapy instrument and electrode impedance measurement apparatus and method thereof |
| CN106730356A (en) * | 2017-01-18 | 2017-05-31 | 武汉中科科理光电技术有限公司 | A kind of multifunctional low-temperature plasma-based treatment system |
| CN107441620A (en) * | 2017-04-28 | 2017-12-08 | 王正之 | A kind of control method of electric stimulation and electrical stimulation pattern |
| CN110585594A (en) * | 2019-09-24 | 2019-12-20 | 喜临门家具股份有限公司 | Current output control system and method for transcranial micro-current therapy device |
| CN112023265A (en) * | 2020-09-28 | 2020-12-04 | 杭州神络医疗科技有限公司 | Electrical stimulation device |
| CN112043959A (en) * | 2020-09-18 | 2020-12-08 | 佛山科学技术学院 | Electrical therapeutic apparatus control system based on cloud service |
| CN113318349A (en) * | 2021-06-30 | 2021-08-31 | 未来穿戴技术有限公司 | Wearable massage apparatus, energy parameter adjustment method, device and storage medium |
| CN114081475A (en) * | 2017-11-28 | 2022-02-25 | 韦斯特伯格控股公司 | Training auxiliary stimulator and method for providing electrical stimulation |
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| CN1186449A (en) * | 1995-06-02 | 1998-07-01 | 阿尔萨公司 | Electrotransport delivery device with voltage boosting circuit |
| CN201783092U (en) * | 2010-12-01 | 2011-04-06 | 段峰 | Adaptive-control skin surface electrostimulation device |
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| CN1186449A (en) * | 1995-06-02 | 1998-07-01 | 阿尔萨公司 | Electrotransport delivery device with voltage boosting circuit |
| CN201783092U (en) * | 2010-12-01 | 2011-04-06 | 段峰 | Adaptive-control skin surface electrostimulation device |
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102125431A (en) * | 2011-04-02 | 2011-07-20 | 北京品驰医疗设备有限公司 | Nerve plexus stimulation system, nerve plexus stimulator and nerve plexus stimulation method |
| CN103930161A (en) * | 2011-11-14 | 2014-07-16 | 路易斯·莫恩 | Stimulation apparatus |
| US9730606B2 (en) | 2013-01-14 | 2017-08-15 | Feeligreen | Self-regulated electrostimulation and/or iontophoresis device |
| CN104918653A (en) * | 2013-01-14 | 2015-09-16 | 菲力格林公司 | Electrical stimulation and/or iontophoresis device having means for varying the voltage on the basis of the resistivity of the skin of a user |
| CN104918653B (en) * | 2013-01-14 | 2017-08-08 | 菲力格林公司 | Change the electrostimulation and/or iontophoresis apparatus of the device of voltage with the resistivity for the skin according to user |
| US9592380B2 (en) | 2013-03-15 | 2017-03-14 | Myndtec Inc. | Electrical stimulation system with pulse control |
| CN105120945A (en) * | 2013-03-15 | 2015-12-02 | 迈恩泰克公司 | Electrical stimulation system with pulse control |
| CN105120945B (en) * | 2013-03-15 | 2017-03-08 | 迈恩泰克公司 | There is pulse controlled electric stimulation |
| US9278207B2 (en) | 2013-10-23 | 2016-03-08 | Wayne D. Gonterman | Cosmetology device |
| US9731110B2 (en) | 2013-10-23 | 2017-08-15 | Wayne D. Gonterman | Cosmetology device |
| WO2015061276A1 (en) * | 2013-10-23 | 2015-04-30 | Gonterman Wayne D | Cosmetology device |
| CN106139392A (en) * | 2016-01-15 | 2016-11-23 | 深圳市科瑞康实业有限公司 | Neuromuscular electric stimulation therapy instrument and electrode impedance measurement apparatus and method thereof |
| CN106730356A (en) * | 2017-01-18 | 2017-05-31 | 武汉中科科理光电技术有限公司 | A kind of multifunctional low-temperature plasma-based treatment system |
| CN107441620A (en) * | 2017-04-28 | 2017-12-08 | 王正之 | A kind of control method of electric stimulation and electrical stimulation pattern |
| CN107441620B (en) * | 2017-04-28 | 2020-10-23 | 王正之 | Electrical stimulation system and control method of electrical stimulation mode |
| CN114081475A (en) * | 2017-11-28 | 2022-02-25 | 韦斯特伯格控股公司 | Training auxiliary stimulator and method for providing electrical stimulation |
| CN110585594A (en) * | 2019-09-24 | 2019-12-20 | 喜临门家具股份有限公司 | Current output control system and method for transcranial micro-current therapy device |
| CN110585594B (en) * | 2019-09-24 | 2024-02-06 | 喜临门家具股份有限公司 | Current output control system of transcranial micro-current treatment equipment |
| CN112043959A (en) * | 2020-09-18 | 2020-12-08 | 佛山科学技术学院 | Electrical therapeutic apparatus control system based on cloud service |
| CN112023265A (en) * | 2020-09-28 | 2020-12-04 | 杭州神络医疗科技有限公司 | Electrical stimulation device |
| CN113318349A (en) * | 2021-06-30 | 2021-08-31 | 未来穿戴技术有限公司 | Wearable massage apparatus, energy parameter adjustment method, device and storage medium |
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Application publication date: 20101027 |