CN201783092U - Adaptive-control skin surface electrostimulation device - Google Patents
Adaptive-control skin surface electrostimulation device Download PDFInfo
- Publication number
- CN201783092U CN201783092U CN201020264924XU CN201020264924U CN201783092U CN 201783092 U CN201783092 U CN 201783092U CN 201020264924X U CN201020264924X U CN 201020264924XU CN 201020264924 U CN201020264924 U CN 201020264924U CN 201783092 U CN201783092 U CN 201783092U
- Authority
- CN
- China
- Prior art keywords
- circuit
- skin surface
- skin
- resistance
- electrical stimulation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Abstract
The utility model discloses an adaptive-control skin surface electrostimulation device which acts on a body surface skin through an electrostimulation electrode. The adaptive-control skin surface electrostimulation device is characterized in that the electrostimulation device comprises a voltage adjusting circuit, an electric pulse generating circuit, the electrostimulation electrode, a current measuring circuit and a skin resistance calculating unit. Compared with the prior art, since the system adopts a body surface electrostimulation method, the electrostimulation electrode is only required to be attached onto a body surface when the device is used, the needle electrode is not required to pierce into a human body, no pain is caused and the device is convenient to use; and since the current measuring circuit can reach the goal of noise reduction and can correctly obtain effective current values, under complex practical application conditions, the adaptive control of electrostimulation can be realized and the control accuracy is high.
Description
Technical field
This utility model relates to the rehabilitation engineering field, particularly a kind of device 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 this utility model problem demanding prompt solution.
The utility model content
In view of the technical problem that exists in the existing product, the utility model proposes a kind of skin surface electrical stimulation device 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 utility model 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.
This utility model 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 utility model;
Fig. 2 is the voltage-regulating circuit figure of the skin surface electrical stimulation device of Self Adaptive Control of the present utility model;
Fig. 3 is the current measurement circuit figure of the skin surface electrical stimulation device of Self Adaptive Control of the present utility model;
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 utility model.
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.
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.
This utility model 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).
Be illustrated in figure 3 as 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 embodiment of the present utility model, and its purpose is not the restriction that is used for system and method that this utility model is proposed, and protection domain of the present utility model is as the criterion with claim.Under the situation that does not break away from spirit and scope of the present utility model; those skilled in the art all should drop within the protection domain of the present utility model 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 utility model.
Claims (6)
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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020264924XU CN201783092U (en) | 2010-12-01 | 2010-12-01 | Adaptive-control skin surface electrostimulation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020264924XU CN201783092U (en) | 2010-12-01 | 2010-12-01 | Adaptive-control skin surface electrostimulation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201783092U true CN201783092U (en) | 2011-04-06 |
Family
ID=43815077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020264924XU Expired - Lifetime CN201783092U (en) | 2010-12-01 | 2010-12-01 | Adaptive-control skin surface electrostimulation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201783092U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101869739A (en) * | 2010-07-20 | 2010-10-27 | 段峰 | Self-adaptive control skin surface electrical stimulation device and method |
| CN112823740A (en) * | 2019-11-20 | 2021-05-21 | 苏州景昱医疗器械有限公司 | Nerve stimulator and human body load impedance detection module and detection method thereof |
-
2010
- 2010-12-01 CN CN201020264924XU patent/CN201783092U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101869739A (en) * | 2010-07-20 | 2010-10-27 | 段峰 | Self-adaptive control skin surface electrical stimulation device and method |
| CN112823740A (en) * | 2019-11-20 | 2021-05-21 | 苏州景昱医疗器械有限公司 | Nerve stimulator and human body load impedance detection module and detection method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101869739A (en) | Self-adaptive control skin surface electrical stimulation device and method | |
| EP2575962B1 (en) | Electrical stimulation device | |
| CN105031813B (en) | Based on the four-way functional electrical stimulation device that complementary type current source and time division multiplex are exported | |
| CN103212157B (en) | Bipolar general nerve electric stimulation instrument | |
| CN101234233A (en) | Transcranial magnetic field stimulator stimulus strength modulating method and device therefor | |
| CN111601636A (en) | Non-invasive neural activator with adaptive circuit | |
| CN205683401U (en) | A kind of multi-functional microelectric current instrument of portable telephone manipulation | |
| CN108261607B (en) | Functional percutaneous nerve electrical stimulation device for motor function regulation | |
| CN109011142A (en) | A kind of portable electric stimulation instrument based on 1/f wave theory | |
| CN105999548A (en) | Transcutaneous nerve location electrical stimulation pen | |
| CN104353184A (en) | Electromyographic feedback stimulator | |
| CN201783092U (en) | Adaptive-control skin surface electrostimulation device | |
| CN110882486A (en) | Constant current type percutaneous nerve electrical stimulation circuit | |
| CN106075726A (en) | Stimulation state adjustment method in sacral nerve stimulator | |
| CN203183521U (en) | Bipolar universal electrical nerve stimulator | |
| CN101411920B (en) | Multichannel micro-current stimulator in vitro | |
| CN205268830U (en) | Amazing generator of sacral nerve | |
| Sabut et al. | Design of a programmable multi-pattern FES system for restoring foot drop in stroke rehabilitation | |
| CN109224289A (en) | Skin Nerve Stimulator Set | |
| CN112823740A (en) | Nerve stimulator and human body load impedance detection module and detection method thereof | |
| Hart et al. | A microcontroller system for investigating the catch effect: functional electrical stimulation of the common peroneal nerve | |
| CN203829484U (en) | Skin surface electrical stimulation therapeutic instrument | |
| CN202191603U (en) | Implanted double-mode stimulation chip and double-mode nerve stimulation system | |
| CN206026875U (en) | Neural location electro photoluminescence pen of percutaneous | |
| CN209033549U (en) | A kind of impedance measurement device based on brain depth stimulator electrode |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160706 Address after: Suzhou City, Jiangsu province Yushan town 215000 Zuchongzhi Road No. 1666 Tsinghua Science Park Building No. 1 Patentee after: Suzhou Sansheng Robot Technology Co Ltd Address before: 300072 room 1, unit 40, 101 Southwest Village, Nankai University, Tianjin, Nankai District Patentee before: Duan Feng |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20171120 Address after: 300072 Tianjin City, Nankai District Wei Jin Road No. 94 building 38 4-301 southwest of the village of Nankai University Patentee after: Duan Feng Address before: Suzhou City, Jiangsu province Yushan town 215000 Zuchongzhi Road No. 1666 Tsinghua Science Park Building No. 1 Patentee before: Suzhou Sansheng Robot Technology Co Ltd |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110406 |