CN2043120U - Electric stimulator - Google Patents
Electric stimulator Download PDFInfo
- Publication number
- CN2043120U CN2043120U CN 88208858 CN88208858U CN2043120U CN 2043120 U CN2043120 U CN 2043120U CN 88208858 CN88208858 CN 88208858 CN 88208858 U CN88208858 U CN 88208858U CN 2043120 U CN2043120 U CN 2043120U
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- pulse
- circuit
- transformer
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- instrument
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- 230000004936 stimulating effect Effects 0.000 claims description 13
- 238000002955 isolation Methods 0.000 claims description 2
- 230000036772 blood pressure Effects 0.000 claims 1
- 210000003710 cerebral cortex Anatomy 0.000 abstract description 6
- 210000003205 muscle Anatomy 0.000 abstract description 4
- 210000000578 peripheral nerve Anatomy 0.000 abstract description 3
- 210000004960 anterior grey column Anatomy 0.000 abstract 2
- 230000000763 evoking effect Effects 0.000 abstract 1
- 210000005036 nerve Anatomy 0.000 abstract 1
- 210000002804 pyramidal tract Anatomy 0.000 abstract 1
- 238000001514 detection method Methods 0.000 description 6
- 230000001360 synchronised effect Effects 0.000 description 5
- 230000005611 electricity Effects 0.000 description 4
- 230000007794 irritation Effects 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 210000000278 spinal cord Anatomy 0.000 description 3
- 238000003745 diagnosis Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000011534 incubation Methods 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
- 230000006735 deficit Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 210000000337 motor cortex Anatomy 0.000 description 1
- 230000001537 neural effect Effects 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
- 238000003079 width control Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
Abstract
The utility model discloses a medical electric stimulator, which is mainly used for directly quantitatively measuring the functions of the motor nerve system, such as the motor area of the cerebral cortex, the pyramidal tract, the anterior horn of spinal cord, the anterior root, and the peripheral nerve. The electric stimulator comprises a high-voltage D.C. supply, a circuit switch, and a single pulse controller. The utility model can directly stimulate the cerebral cortex, the anterior horn of spinal cord, the anterior root, and the peripheral nerve through the skin. The electric stimulator is provided with a double pulse energy limiting circuit with magnetic saturation, and a double screened transformer, which can guarantee the safety of the patients and the achievement of the evoked potential records of muscle which is lower than the muscle of violating discipline disturbance.
Description
This utility model relates to a kind of medical apparatus, is to be used for checking cerebral cortex, spinal cord and a kind of electric stimulating instrument of nervus motorius function on every side.
Silent (Merton) proved that first can see through the excited motor area of cerebral cortex ， of cortex And with low output impedance, high pressure, narrow electric pulse can draw the electricity reaction from corresponding limb muscle, can diagnose this neural function according to this in 1980.Britain Digiter company has produced D180 type cerebral cortex electric stimulating instrument by a silent scheme.This instrument is by dc source, charge and discharge capacitance, isolating output transformer, and compositions such as output resistance, switch utilize the instantaneous discharge of capacitor storage electric energy to produce spike.Be to reduce pulse power internal resistance, at high-power little resistance resistance of the Shu of transformator Chu Ji And connection, this resistance consumption the overwhelming majority of output electric energy.The circuit of this instrument is simple, the power limit effect is arranged, but scholars are when doing nervous function diagnosis and electrophysiologic studies, find this instrument part that still has some deficits: the one, can only produce spike, can not produce rectangular pulse, the 2nd, pulse width can not be regulated continuously, therefore is difficult to realize strong stimulation, the repeatability of experimental result is also bad, and the 3rd, output Pulse Electric efficient is very low.
The purpose of this utility model will design exactly and a kind ofly can produce rectangular pulse, and pulse width is adjustable continuously, and the electric stimulating instrument that output electric pulse efficient is higher is adjustable to realize intensity of electric stimulus, improve the repeatability of testing result, improve diagnosis research result's accuracy.
Organization plan of the present utility model is: the dc source of an Adjustable Output Voltage, in order to regulate the voltage pulse output amplitude, its output termination voltmeter, receive on-off circuit again, magnetic saturation pulse isolating output transformer is received in on-off circuit output, the ON time control end of on-off circuit is received the outfan of pulse pulse-width modulator, the pulse pulsewidth is given first setting, then by manually or by synchronizing signal triggering from miscellaneous equipment, and this actuator also can be carried synchronizing signal to the detection record instrument, the rectangular pulse width of this actuator output is being controlled the ON time of on-off circuit, also just controlled the pulse width of pulse isolation transformer output, pulse-width regulated and pulse amplitude are regulated and have been reached the repeatability that the purpose And that changes intensity of electric stimulus has guaranteed testing result, and the magnetic saturation isolating output transformer has limited output voltage and electric energy.
This instrument is an electric stimulating instrument, also want adapted detection record equipment in order to detect nervous function and electrophysiological characteristics, for they can be worked harmoniously, this instrument decapacitation is accepted outside the synchronous trigger impulse of miscellaneous equipment, also can be to detection record equipment output lock-out pulse.
When the direct excited motor cortex of skin surface pair of stimulating electrodes is passed through in the pulse of this instrument, when spinal cord or peripheral nerve, the output pulse makes the detection record instrument enter the detection record duty simultaneously, through a pair of exploring electrode that is positioned at the respective muscle surface during electricity irritation and later a series of state-detection note (as state parameters such as EAP incubation period, waveform, wave amplitudes) so that the nervus centralis and the function of kinetic system are on every side judged in research.
This utility model is because pulsewidth and voltage amplitude can give first setting, improved the repeatability of testing result, voltage amplitude and pulsewidth are adjustable continuously, just make that stimulus intensity is adjustable, dc source adds on-off circuit, make that this instrument output impedance is very low, the magnetic saturation pulse output transformer has limited voltage, electric energy output, has improved safety.
Fig. 1 is the electric stimulating instrument structured flowchart
Fig. 2 is dc source, on-off circuit and isolating transformer circuit diagram.
Fig. 3 is a pulse pulse-width modulator circuit diagram.
Preferred example of the present utility model such as Fig. 1, Fig. 2, shown in Figure 3.Dc source (1) is by mains transformer (T
1), rectifier tube (D
1-4), resistance (R
1), electric capacity (C
1), potentiometer (W
1), voltmeter (V) forms potentiometer (W
1) adjust electric power output voltage, also promptly adjust the voltage pulse output amplitude, voltmeter (V) shows magnitude of voltage, its output voltage meets electric capacity (C
2) meet switching tube (T again
R1) colelctor electrode, this pipe emitter stage via audion (T
R2) and resistance (R
2) current-limiting circuit formed is connected to magnetic saturation pulse isolating output transformer (T
2) elementary, Chu Ji And is connected with resistance (R
3), diode (D
5) leadage circuit formed, secondary through transformer (T
3) and debugging load resistance (R
4), switch (K
4〕 And connection, outfan (6,7) connect stimulating electrode, transformer (T
3) output (8,9 〕 And connection resistance (R
5), switching tube (T
R1) base stage---the pulse width control end (12,13) of emitter stage is connected to the outfan (18,19) of pulse pulse-width modulator (3).
The power supply of pulse pulse-width modulator (3) is by diode (D
6-D
9, D
10), electric capacity (C
3, C
4), resistance (R
7, R
8) and audion (T
R3) form, monopulse generator (or agitator) is by integrated circuit (IC
1) two NAND gate, switch (K
2, K
3), resistance (R
10, R
13), electric capacity (C
5, C
7) form, work as K
2Become agitator during connection, use, work as K for debugging
2During cut-out, press K
3Just can produce single pulse, this pulse enters by integrated circuit (IC
2) two not gates, electric capacity (C
8, C
9), doubly-linked potentiometer (W
2) the pulsewidth adjustor formed, W
2Be that pulsewidth is adjusted setting apparatus, adjusted pulse is through resistance (R
19, R
20), electric capacity (C
12, C
13), audion (T
R6) amplify and to be added to isolating transformer (T
5), T
5Elementary another winding (N
3) be connected to diode (D
13) form leadage circuit, secondary output end (18,19) is connected to the control end (12,13) of on-off circuit (2); This pulse also has one the tunnel to trigger integrated circuit (IC
1) two NAND gate, resistance (R
10), electric capacity (C
5) form monostable, monostable going again drives by light emitting diode (D
16), resistance (R
6, R
9) and audion (T
R4) the pulse output display circuit formed; Other has one the tunnel via electric capacity (C
10, C
11), resistance (R
14, R
15, R
18), audion (T
R5), diode (D
14, D
15), transformator (T
6) end points (20, the 21) output of the lock-out pulse output circuit formed; At trigger switch (K
3) Shang Hai And joining by resistance (R
11), transformator (T
4),, diode (D
11, D
12) the outer synchronous input circuit formed, outward synchronously by T
4Termination (16,17) input, (D
12, D
11) a voltage restriction, IC
1Be CC4011, IC
2Be CC4069.
This instrument only provides electricity irritation, cerebral cortex, spinal cord and on every side nervus motorius incubation period of being subjected to produce after the electricity irritation, Bioelectrical Wave, wave amplitude etc. all need observed and recorded, therefore want adapted autographic apparatus, oscillograph etc.Can be connected to the lock-out pulse of pulse pulse width modulator output termination (20,21) synchronous input end of oscillograph and monitor, work as K
3When the synchronous triggering signal of triggering or miscellaneous equipment comes,, make oscillograph, monitor and this electric stimulating instrument synchronous coordination work to oscillograph and monitor output synchronizing signal.
Claims (3)
1, a kind of electric stimulating instrument of being made up of dc source, isolating transformer, stimulating electrode is characterized in that: the output voltage of dc source [1] is through potentiometer [W
1] adjust blood pressure Hou And joins a voltage display [V], receives on-off circuit [2] again, the outfan of on-off circuit is connected to magnetic saturation pulse isolation transformer [T
2] elementary, secondary through current transformer [T
3] an end be connected stimulating electrode respectively with the other end, the control end of on-off circuit [2] is connected to pulse pulse-width modulator [3].
2, according to the described electric stimulating instrument of claim 1, it is characterized in that: pulse pulse-width modulator (3) has pulsewidth and sets potentiometer (W
2), lock-out pulse outfan (20,21), starting impulse input (16,17) and hand switch (K
3), magnetic saturation driving transformer (T
5).
3, according to the described electric stimulating instrument of claim 1, it is characterized in that: on-off circuit (2) comprises switching tube (T
R1), input capacitance (C
2) and by resistance (R
2), audion (T
R2) current-limiting circuit formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88208858 CN2043120U (en) | 1988-07-23 | 1988-07-23 | Electric stimulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88208858 CN2043120U (en) | 1988-07-23 | 1988-07-23 | Electric stimulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2043120U true CN2043120U (en) | 1989-08-23 |
Family
ID=4842598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88208858 Withdrawn CN2043120U (en) | 1988-07-23 | 1988-07-23 | Electric stimulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2043120U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1085100C (en) * | 1997-09-05 | 2002-05-22 | 河南省科学院能源研究所 | Hemiparalysis curing instrument by central nervous stimulation |
| CN100411583C (en) * | 2006-06-22 | 2008-08-20 | 秦宏平 | Myoelectric diagnostic treater |
| CN102058396A (en) * | 2011-01-28 | 2011-05-18 | 广州军区广州总医院 | Handheld cortex egersimeter and cortex electrostimulation |
| CN104203129A (en) * | 2012-04-09 | 2014-12-10 | 伊西康内外科公司 | Surgical instrument with nerve detection feature |
| TWI784607B (en) * | 2021-06-30 | 2022-11-21 | 喀藝科技有限公司 | Control current variable voltage dual frequency transcutaneous nerve stimulator device |
-
1988
- 1988-07-23 CN CN 88208858 patent/CN2043120U/en not_active Withdrawn
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1085100C (en) * | 1997-09-05 | 2002-05-22 | 河南省科学院能源研究所 | Hemiparalysis curing instrument by central nervous stimulation |
| CN100411583C (en) * | 2006-06-22 | 2008-08-20 | 秦宏平 | Myoelectric diagnostic treater |
| CN102058396A (en) * | 2011-01-28 | 2011-05-18 | 广州军区广州总医院 | Handheld cortex egersimeter and cortex electrostimulation |
| CN102058396B (en) * | 2011-01-28 | 2013-06-05 | 广州军区广州总医院 | Handheld cortex egersimeter and cortex electrostimulation |
| CN104203129A (en) * | 2012-04-09 | 2014-12-10 | 伊西康内外科公司 | Surgical instrument with nerve detection feature |
| US10987051B2 (en) | 2012-04-09 | 2021-04-27 | Ethicon Llc | Surgical instrument with nerve detection feature |
| TWI784607B (en) * | 2021-06-30 | 2022-11-21 | 喀藝科技有限公司 | Control current variable voltage dual frequency transcutaneous nerve stimulator device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |