CN85104357A - Have the skin stimulation device that pulse shows - Google Patents

Abstract

Originally surmount the cutaneous nerve stimulating apparatus and have a Common Controller, be used to control the generation of output pulse and the demonstration of treatment parameter.This Common Controller preferably adopts a programming microprocessor, and it is connected with display with impulse output circuit by holding wire, they be by to holding wire timesharing control.Controller operation response person is for calculating the input signal that output pulse characteristics and display parameters are sent into.In most of treatment times, controller provides signal for showing control on holding wire.In the fixed time interval when producing output signal, shows signal is interrupted.

Description

Have the skin stimulation device that pulse shows

The invention relates to and surmount the cutaneous nerve stimulating apparatus, relate in particular to this device that its output and shows signal are controlled by a general processor.

Surmounting the cutaneous nerve stimulating apparatus will stimulate electric pulse to give and the patient skin electrode in contact, by electricity the stimulation of nerve be come eliminate pain.When the doctor awards patient with a device usually, also teach him simultaneously and how could use this device safely and effectively; After this, patient just can use this device to carry out necessary treatment.So patient just wishes that naturally obtaining one uses simply again device easily.

Find that now different patients need could obtain curative effect with dissimilar pulse frequencies.Therefore, a stimulating apparatus should provide the dissimilar pulse frequency of certain limit, so that allow the doctor adopt the most medicable treatment at especial patient.

In many cases, on one side make patient can continue his or her daily routines, also be possible Yi Bian use stimulating apparatus.For reaching this order ground, then device must be little and be easy to carry.So people just wish to obtain a kind of little of putting in the pocket, light to the device that can be worn on patient's belt.

When treating, patient should only just can choose the treatment pulse frequency of doctor's advice by simple operations, and must identify this therapeutic frequency by indicator on the finder or display.So in a kind of like this device, must have electronic circuit to control this treatment pulse and demonstration.Yet, increased device size for finishing above-mentioned two function setting split circuit assemblies, thereby things turn out contrary to one's wishes, obtain a not only big but also heavy stimulating apparatus.So people wish to have a kind of stimulating apparatus, it can use the general controls circuit to control the generation of output pulse and the demonstration of treatment parameter.

According to principle of the present invention, can obtain to use general purpose controller to control a kind of stimulating apparatus of the demonstration of the generation of output pulse and treatment parameter.This general purpose controller preferably adopts programming microprocessor type, and it is connected with display with the pulse outlet line through signal line, by to holding wire timesharing control the back both.The input signal that controller operation response person sends into for calculating output pulse characteristics and display parameters.In most of treatment times, controller all provides signal for control shows on holding wire.When output signal produced, shows signal was interrupted in periodic interval.The mode of control output timing signal be to make generation required pulse preface example to display without any remarkable influence, so just can prolong the life-span of power supply and display device.

Fig. 1 is the sketch map according to the stimulating apparatus of principles of construction of the present invention.

Fig. 2, Fig. 3 and Fig. 4 are the more detailed sketch maps of Fig. 1 example.

Fig. 5 is the block diagram of Fig. 1 middle controller.

Fig. 6 A, 6B, 6C and Fig. 7 are the program control flow charts of Fig. 5 middle controller.

Fig. 8-the 13rd, the timing diagram when representing stimulating apparatus operation shown in Figure 1.

The basic comprising of the numerical control stimulating apparatus that can understand to be constructed by Fig. 1 according to the present invention.Microprocessor 10 receives by operator's input control signal of pressing key switch 12 inputs.Microprocessor also receives the input signal that battery low level detector 26 and marking signal detector 50 send.All will stop the generation of output pulse from the signal of any one signal source in two signal sources in above-mentioned back.

This device is by battery 14 power supplies, and battery 14 is connected with power regulator 18 through the on/off switch.Actuator 18 provides current/voltage Vs through regulating for microprocessor 10, output stage voltage VA and give the parameter voltage of numeral one simulation (D/A) transducer 40.This actuator also is connected with the battery low level detector 26 that is used as voltage sample.

Microprocessor 10 has two ports and a data bus, represents with bus 1, bus 2 and bus 3 among the figure.Bus 1 transmits the numeric word of representing output signal level to D/A converter 40, and the signal of the structure word line segments of control display 20 low-order digits.Bus 2 transmits the signal of the structure word line segments of display 20 central numerical digits, and the set of sampling configuration permutator 24.Bus 3 is provided with many data wires for specified control function.Line draws the timing that control is added on reference voltage D/A converter 40.The timing of the output-voltage levels word of D/A converter buffer register is sent in line 23 controls.The conducting of line 33 and 34 control gate circuit 42 and 44, gate circuit 42 and 44 is presented output circuit to this device with the output voltage of D/A converter.Line 35 applies a signal between sampling period this switch in the pattern of mode conversion switch 24.When the pulse amplitude of first outfan is carrying out numeral when showing, line 36 will be imported.Data are given shift register 22,, line 37 is connected amplification symbol (AMP) indicator on display 20 left sides.

The outfan of D/A converter by two CMOS complementary metal-oxide-semiconductors (CMOS) gate circuit 42 and 44 and the input Rhizoma Nelumbinis of output signal amplifier 46 and 48 close.Amplifier 46 and 48 and the input Rhizoma Nelumbinis of output transformer TR1 separately and TR2 and marking signal detector 50 close.

The some of Fig. 1 obtains more detailed expression in Fig. 2.Fig. 2 has shown to have and has referred in particular to the microprocessor 10 of understanding input and output side that it can be the plain edition microprocessor that is called 80C49.3MH ₂Crystal detector is connected across between the input X1 and X2 of microprocessor 10.The RESET input of microprocessor 10 closes through electric capacity 103 and ground Rhizoma Nelumbinis, can receive reset instruction immediately with convenient device connection and the stable back of supply voltage microprocessor.Press the key control switches to link to each other with interrupting input end for four that indicate demonstration (DISP), increase (INC), minimizing (DEC) and set (SET) with input T φ, the T1 of microprocessor.Some diodes are used for and will encode from the signal of pressing key switch.For example when depressing the DISP key with the function that changes display and just demonstrating, the diode that is connected on the DTSP key just is added on T φ and T1 input with low level (ground level) signal.At this moment microprocessor just is encoded to these two low level lines the DISP instruction.The signal that closes with microprocessor input Rhizoma Nelumbinis also has marking signal and the battery low level detection signal of sending here through transistor 105.The voltage of preset signal also is fed to input T1.

The branch line of three-bus has also drawn in Fig. 2.Bus 1 and 2 is ports of 8 lines separately.Bus 3 has 8 data wires, in order to each dedicated functions of having enumerated above controlling.The line 38 that does not draw among Fig. 1 is clock lines, and it is opened selectively, and the data of line 36 are deposited into shift register 22.

Fig. 3 has provided the layout of bus among display and Fig. 1 in more detail.Draw by the CMOS gate circuit 128 and the ground level Rhizoma Nelumbinis of transistor 118 from the line of microprocessor and to close.Needs turn-on transistor 118 when the signal REFG that line draws works according to the D/A40 transducer applies a reference voltage for this transducer.When D/A converter does not provide output voltage, then do not need reference voltage; So the REFG signal stops reference voltage to save power supply energy.Otherwise every half second reference voltage will be connected once to adopt cell voltage moment.After 16 conductings of on/off switch, electric capacity 74 chargings, gate circuit 128 will interrupt for a moment.This capacitor charging time allows this system to settle out before transistor 70 conductings, opens at the T1 of this time microprocessor input.When T1 disconnected, the output pulse was in nominal low level.Transistor 72 disconnects successively, thereby is disconnected to the startup line of gate circuit 128.Transistor 72 also forces pattern to be transformed into required mode.At this moment, applying reference voltage to A/D converter can begin, and microprocessor moves with valid data.This locking has prevented in proper order that moment from having no progeny the high level of mistake output pulse has been applied on one's body the patient.This pulse may cause the data of looking genuine to stay in the microprocessor registers, and until till the effective recovery of depositor quilt.

When wanting interrogation mode switch 24 to take place, add the signal MSW moment turn-on transistor 74 on online 32 to determine whether pattern conversion.At this moment, the contact arm of mode switch 24 is added on a low-signal levels outfan of this switch that links to each other with it at present.Obtain on this low-signal levels in 4 lines of the bus 2 that is connected with mode switch is homologous pair detecting, this moment, bus 2 was as a data input channel.In remaining time during this period of time, bus 2 provides the structure word line segments to drive signal and base plate (BP) signal for the sandwich digit of display 20.Except D/A converter 40 is deposited when being loaded with the output signal level data, the low-order digit that bus 1 is always display provides the structure word line segments to drive signal.

Contain two 4, the shift register 22a that is connected in series and the shift register 22 of 22b, deposit the data of carrying for leftmost demonstration numerical digit from line 36.Clock signal on the line 38 moves into data among shift register 22a and the 22b.Display is also in both sides display indicator: amplify (AMP), pulsewidth (PW) and speed (RATE), in order to tell that the operator increases (INCREASE), decay (DECREASE) presses key controlling which parameter.Left side designator is corresponding to outfan 1, and the right designator is corresponding to outfan 2.The designator AMP of outfan 1 is by the AMPI signal controlling on the line 37, and the AMP designator of outfan 2 is by a line traffic control of bus 1.The PW(pulse width of outfan 1) designator is by the Q2 unit controls of shift register 22b, timesharing on the PW designator online 36 of outfan 2.The RATE designator is generally by the Q4 unit controls of shift register 22a when two outputs all present identical pulse speed or frequency.

Fig. 4 has shown the output of this stimulating apparatus in detail.When D/A converter had produced required output level, signal ENI on the line 33 and 34 and EN2 made CMOS gate circuit 42 and 44 conducting a period of times, and the pulse width that this time is sent into corresponding to the operator is put calmly.So the output pulse is added on amplifier 46 and 48; Output transistor 60 and 62 is connected, and gives output transformer TR1 and TR2 with output signal.Export pulse then and be coupled on the lead-in wire that is connected with electrode (not drawing among the figure) electrode and patient's contact skin by transformator.

Before each transmission output pulse, at first carry the test pulse that is called marker to check whether electrode correctly contacts with patient.If it is not right to contact, pulse will can not surpass the trigger gate limit value of comparator 52, and then the output state of comparator can not change.The inspection of incorrect electrode contact will causing marker, marker is seen Fig. 2 by transistor 105() close with the interrupting input end Rhizoma Nelumbinis of microprocessor, the notice microprocessor has incorrect connection.Microprocessor will be inquired its interrupt line and be found out problem.A marker characteristic position will be set up, and system will stop to produce the output pulse, be excluded and will install and reset up to fault.In the U.S. Patent application that Mk system is submitted at the same time more detailed description is arranged, this application by name " have Mk system surmount cutaneous nerve stimulating apparatus ", its application number is

The software of the operation of control microprocessor and this device is stored in the 2k read only memory (ROM).This software is divided into foreground program and background program.Two programs cooperatively interact by the exchange of data word in the random-access memory (ram) that is stored in 128 bytes and marker bit.In Fig. 5, represented this software/hardware structure.In most of times, the background program circulation is all being carried out.Background program constantly monitors presses key input and mode conversion switch, seeks to change.When changing generation for one, the variable that it is detected and any requirement changes all will be carried out and calculate and deposit in RAM.These variablees can both obtain the use of foreground program then.

The capable internal timer of not stopping transport interrupts background program every 2.5msec.The foreground program of control accurate timing function then is docile and obedient the preface execution, produces output signal in the corresponding time.Output signal produces according to the data value that foreground program is addressed in ram memory cell.When the foreground program had produced the output signal of new data value, it returned status flag to RAM, and indication background program new data is used.

In Fig. 6 A, 6B and 6C, provide the flow table of foreground program.When internal timer arrived 0 behind 2.5msec, background program interrupted, and microprocessor forwards Unit 007 to, and the AM/BAM program begins to carry out thus.Background program data in the accumulator deposit depositor 7 in, and are foreground program controlled selection register memory cell (bank) 1.Register memory cell contains some count words, and they are by the foreground program depreciation, to keep the corresponding timing of output function.The internal timer preset value is 240, is equivalent to 2.5msec, and beginning is handled on the foreground then.

Foreground program at first makes a liquid crystal display (LCD) enumerator depreciation for the control display.LCD display receives two class pulse trains: common backplane pulse train and a lot of independent line segment pulse train, each pulse sequence frequency is 25HZ.When two pulse trains show that for any one line segment or designator homophase takes place change, then do not have potential difference between the pulse train, and line segment or designator do not show.Yet when two pulse trains are in antiphase, a voltage difference is always arranged between the pulse train, line segment or designator will show.

When the LCD enumerator by depreciation to 0 the time, arrive half cycle time of 25Hz pulse rate, the output of delivering to LCD display must change.The LCD enumerator value of being preset to 8(8 is doubly to the 2.5msec=20msec=1/2 25Hz cycle), the LCD data that reside among the RAM are added on bus 1 and 2.The LCD data are deposited into shift register 22 from data wire 36 orders.An anti-root flag F 1 is set up, and it is necessary for the anti-phase LCD data value of second cycle (antiphase) calculating of LCD pulse train in order to the notice background program.

A power connection (powtron) enumerator is by depreciation.Every two seconds, " powtron " LED(light emitting diode) flicker 20msec, so that point out that to the operator this device is in normal operation.At first, whether the value of inspection enumerator is 99; If in this value, LED disconnects.Whether the value of then checking enumerator is 0, and at this constantly, LED is switched on horse back.If 0 value, enumerator value of being preset to 100, the LED conducting, foreground program proceeds to Fig. 6 B.

Then check depositor R2, see whether detected the labelling fault.If detected fault, then LED conducting always has problem with the warning user.LED can only be disconnected when getting rid of electrode failure and resetting this system.

This program is then to the speed counter depreciation.Speed counter is from an initial value (RATE) countdown, and this initial value is a numeral that is calculated by background program.The RATE digitized representation interval between the output pulse of selecting by the operator.If speed counter to 0, then exporting pulse will be produced, and this enumerator set and LCD dateout is again deposited in.Because bus 1 will be output data occupancy now, the LCD data on this line must deposited in during this period, return on this bus after output pulse sequence is finished by the time again.

This program checks at first whether this device moves in modulating mode.When this pattern, the pulse width of each output pulse is all different with previous pulse with amplitude.So a labelling is set up, produce with pulse of notice background program, and be the necessary calculating parameter value of next pulse.If device is not in modulating mode, then whether this program checkout device is in pulse string mode.When being in this pulse string mode, produce the string of 7 pulses with the speed of 80Hz every half second.The amplitude of series impulse is determined by the operator.If device is in pulse string mode, whether program checkout has a pulse train well afoot.If the series impulse sequence is gone over, then output does not produce.If it is intact that 7 pulse trains did not have, a pulse string mode labelling is eliminated, and pulse output beginning.

When this program was found device not with modulation or pulse string mode operation, then device was necessarily with normal or intensity continuous-mode operation.When above-mentioned arbitrary pattern, all will produce the repetitive sequence of a treatment pulse, this program proceeds to and produces the output pulse.

The microprocessor pulse of control first outfan earlier produces, and the pulse of then controlling second outfan produces.At first, the REFG signal that draws of line applies a reference voltage to D/A converter.A numeric word is sent to bus 1, and is written into the D/A converter buffer by a WR signal on the line 32.An EN1 signal on the line 33 makes gate circuit 42 conducting during required or in the pulsewidth, and first outfan produces output signal.This program is then sent a new pulse amplitude into D/A converter, and carries out door permission order to produce selected pulse at second outfan at gate circuit 44.After pulse output was finished, the REFG signal stopped, and all 0 is admitted to D/A converter.The LCD data reset for being presented on the bus 1, and foreground program is proceeded.Pulse output has taken the main part of the time of foreground program, because the working width scope of output pulse can be from 30 microseconds to 250 microseconds.

This program is then checked and is seen whether the counting of speed counter is 2.If then marker must produce now, 5 milliseconds of specific output pulse advancings after a while.LCD data on the bus 1 deposit in again, so that allow bus 1 be used for transmitting pulse amplitude values to D/A converter.Whether the first reproduced pulse amplitude that this program checkout be it seems will be greater than with an inner milliampere of calibration being 4 milliamperes of benchmark.If no, then there is not labelling to produce, because output pulse itself is very low, can not cause any dangerous of patient.If but the output pulse surpasses 4 milliamperes, then an amplitude is 5 milliamperes, and the marker of persistent period 30usec produces at first outfan, and uses output order same as described above.Repeat this operation to produce a marking signal at second outfan.

If an electrode is loosening with contacting of patient, after comparator 52 detects, then interrupt at the INT input.If interrupt producing, then at depositor R ₂In set up the fault flag of a marker detection.During step below carrying out foreground program, depositor R ₂Interior labelling is with detected, and LED will connect, and output pulse sequence will be by bypass.

Continue Fig. 6 c program, 1/2 second enumerator depreciation, some functions produced every half second.If enumerator was in 0 in 1/2 second, then its set and treatment time labelling foundation again.During treating, patient can see the treatment time on the display, and the displayable time reaches 255 minutes.According to treatment time labelling put surely, background program just added up the seance time at interval every half second.

Remove half second labelling.For prevent that thereby patient from will export the pulse amplitude raising and producing unnecessary high amplitude pulse too soon, the pressure key of control impuls parameter change can only allow rank of generation in per half second to change more.Labelling allowed the increment of these times to be monitored by background program in half second.After pressing next parameter to press key, parameter increased an increment in per half second.

Remove a sampling configuration switch labelling.This labelling tells background program every mode switch of inquiry in half second.More flat numerous inquiry generally there is no need.In fact, then other function can be in this time execution to reduce this number of times.

After 1/2 second enumerator was inquired, then the pattern of reexamining saw whether string pattern is selected.If then go here and there the enumerator depreciation, and check and see that it is to be 0.If, then its set again, the string labelling is set up so that produce 7 new burst sequences, the next step of beginning foreground program.

Foreground program so far finishes, for background program is selected in the register memory cell.Accumulator returns to the content when foreground program begins.Background program restarts in system before the foreground timing is interrupted taking place.

In Fig. 7, provided the flow chart of background program.After stimulating apparatus was connected, microprocessor resetted, and background program is from memory element 0.Preset several variablees, pulse amplitude puts 0; Pulse width is put 50wsec; Speed is put 80Hz.Remove labelling, prset counter.The internal timer of foreground program starts with 240 initial number again.

Background program is then checked cell voltage.If it is low, program stop and LED are bright.If cell voltage is in enough level, program checkout sees whether foreground program has removed half second labelling.If labelling is removed, background program begins to read keyboard key DISP, INC and DEC, seeks to change.If labelling is also removed, depressed behind last key also not more than half seconds, then do not read keyboard.If detect a new key input, then program is its decoding and record, and calculates corresponding new variables for the storage among the RAM.After finishing calculating, labelling resetted in half second, and was removed by foreground program behind reciprocal the finishing of quilt when half second.

Background program is then checked and is seen and minute mark whether to set up.During treating, program is with minute record and show treatment time.When having added up a whole timesharing, treatment time showed and into increases to next minute, up to maximum 255 minutes.When treatment, the flash of light regularly of this time is normally being carried out with the treatment of notice user.The dead time of flash of light phase prolongs the life-span of display.

After having checked minute labelling and having found that it does not set up, then calculate the data of LCD display, and, take by foreground program with its memory element of sending into RAM.As above-mentioned, every 20msec is anti-phase for the LCD display waveform, and the state of the LCD base plate pulse train of it and 25Hz changes synchronously.

Therefore, background program will be done necessary processing according to operational mode.If treatment is carried out under normal or intensity continuous-mode, program checkout sees whether 7 burst sequences are finished.If device is in modulating mode, and if corresponding labelling is set up by foreground program, then program is calculated the parameter of next pulse.If device is in the calibration section of intensity continuous-mode, then program is calculated any required pulse width as pulse characteristics, amplitude and loaarithmic curve.After finishing calculating, program proceeds to the mode query section.

In the U.S. Patent application of " surmounting the cutaneous nerve stimulating apparatus " by name that modulation and intensity continuous service pattern are submitted at the same time more detailed description is arranged.

Background program is then checked and is seen whether foreground program has removed sampling configuration switch labelling.Do not remove if also, then program is changeed the battery inspection step.If remove, program reading mode switch, if there is pattern to change, program is that mode treatment changes all status words in proper order, comprises this labelling, and presets variable for parameter value.Program is then carried out the battery inspection step.

Should be kept in mind that when internal timer is counted to one 2.5 ms interval foreground program interrupts background program.

The impulse waveform of Fig. 8-13 has shown how timesharing is to provide difference in functionality for microprocessor bus.The waveform of Fig. 8 has shown the interval of one 480 microsecond, and the LCD data of display are revised during this period.Simultaneously with reference to figure 3, at the needs of 480 microseconds beginning section at interval by the line segment of the right of controlling LCD display and sandwich digit, revise the data value on the bus 1 and 2, line 36 sends one 8 pulse (SHR) sequence, and it is counted shift register 22a and 22b by the CLK pulse on the line 38.The control line 37 that shows as AMPI also connects and need be changed.

Fig. 8 connects 480 microseconds at interval with the 25Hz impulse waveform, this waveform is that the LCD data constantly produce on bus 1 and 2.A complete 25Hz cycle needs 40 milliseconds, at the fringe time of 25Hz waveform, can see that level changes and shift register deposits generation in.At All Other Times, the signal level on the bus 1 and 2 is stable, except when the similar weak point asynchronous interval of dateout when being sent to D/A converter 40; And mode switch is sampled.In the ordering of Fig. 8 and Fig. 9 demonstration, the LCD character changes without any obvious variation or pulsation.

Figure 10 and 11 with the battery inspection regularly and mode switch the inquiry of LCD waveform is connected.Among Figure 10, the REFG pulse that line draws is added on the actuator transistor 118 in Fig. 3, so that when checking cell voltage, connects the voltage through adjusting.A MSW pulse on the line 35 is added in 50 microseconds on the transistor 74, so that a low level signal is added on the terminal on mode switch 24 left sides.The contact arm of mode switch then is connected the single line of this low level signal with bus 2, and this line is controlled by microcomputer as an input bus during this.Microcomputer is with the low signal on the line that links with the corresponding terminal in mode switch the right on the testbus 2.All other lines all will be in a high state.

The only every half second of the sampling of battery and mode switch takes place once, therefore to not significantly influence of LCD display.In all the other times, bus 2 is output bus of LCD display.This can see in Figure 11, and is relevant with general 25Hz waveform on bus 2 in that pattern sampling period.

Lower waveform B P is the base plate pulse train on the bus P25.When the BP signal was in the line segment signal bits on the contrary, as solid bus 2 waveforms among Figure 11, a voltage was added on the line segment, and a dark LCD line segment occurs.When control bus signal and the same phase time of BP signal, then there is not voltage to be added on the line segment, at this moment cannot see line segment.

Figure 12 and 13 connects pulse output sequence and 25HzLCD waveform.In Figure 12, provided a typical sequence, its per second speed is that 80 pulses, pulsewidth are 50 microseconds.The time span of sequence is 360 microseconds in this example.At first, the REFG signal that line draws is added in a reference voltage on the D/A converter 40, leaves bus 1 and deposits it in D/A converter buffer register by the WR pulse 201 on the line 32 as first pulse amplitude exporting (AMPI).Then the pulsewidth time of 50 microseconds is closed door 42 in the ENI pulse on the line 33; Produce an output pulse at this impulse duration of EN1 at first outfan.Then, WR pulse 203 for the second time will deposit D/A converter in as the pulse amplitude of second output (AMPZ).EN2 pulse on the line 34 is closed the pulsewidth time of defined with door, thereby produces an output pulse at second outfan.At last, the 3rd WR pulse 205 deposits one 0 value pulse amplitude in D/A converter, and the REFG end-of-pulsing is cancelled reference voltage from D/A converter.

Among Figure 13,360 microsecond output pulse sequences and 25Hz waveform connect.The per 12.5 milliseconds of pulses that repeat once the per second speed 80 in should example of output sequence 210-214.Can see that the 25Hz waveform changes polarity for per 20 milliseconds.It is so rapidly that 360 microseconds are interrupted with respect to the 25Hz clock, so that user be can't see the flicker of LCD display.Yet as shown in Figure 12, between each load of D/A converter, the LCD data value is deposited in bus 1.

When using stimulating apparatus of the present invention, user is placed on electrode on the treatment region of health.Select required pattern by putting cover half formula switch, open the on/off switch.The left side AMP indicator of outfan 1 shows that at first user then uses corresponding knob to increase (INC) or decay (DEC) pulse amplitude.Depress the DISP push button, the power P W of first outfan shows.Then user is depressed INC and the DEC push button is provided with required pulsewidth.INC is depressed in repress DISP push button demonstration speed (RATE) indication and the DEC push button is provided with required pulse rate.Twice DISP key of repress, and adjust and show the amplitude and the pulsewidth of second outfan in the same way.The pulse rate adjustment is simultaneously to two outfans.

The calibration scope of amplitude is 0-50 milliampere (ma), and every grade can increase or reduce 1ma.The pulse width variations scope is the 30-250 microsecond, every grade 10 microsecond.The rate variation scope is from 2Hz to 100Hz, and 2Hz and 100Hz are respectively one grade, adjusts 10Hz for every grade in the 10-80Hz scope.

Errata

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Claims (20)

1, the cutaneous nerve stimulating apparatus that surmounts that is used to produce the electronic stimulation pulse comprises:

An output circuit that produces the treatment pulse;

A display that is used to show described treatment pulse parameter;

A controller, it has the output lead that closes with described output circuit and display Rhizoma Nelumbinis, and during treating, it is that described output circuit and display produce control signal in the different time also, and it imports line in addition;

For the control of described treatment pulse parameter with on described display, show pulse parameter, treatment pulse parameter signal is added in the device on the input line of described controller.

2, the stimulating apparatus of claim 1, wherein said controller are digital microprocessors.

3, the stimulating apparatus of claim 2, wherein said output lead comprise a data bus, and described microprocessor produces output control signal and display control signal with time-sharing format on this bus.

4, the stimulating apparatus of claim 3, many lines of wherein said bus link to each other with display with described output circuit.

5, the stimulating apparatus of claim 1, wherein said display comprise a liquid crystal display by the signal controlling of described controller generation;

Wherein said output circuit comprises a digital-analog convertor, the signal that its response is produced by described controller.

6, the stimulating apparatus of claim 5, close the line segment control input end of many lines of wherein said output lead and the input of described digital-analog convertor and described liquid crystal display Rhizoma Nelumbinis mutually.

7, the stimulating apparatus of claim 1, wherein said output circuit comprises:

A digital-analog convertor, it has an outfan and an input that closes with described controller output lead Rhizoma Nelumbinis;

A gate circuit, it has the input and the outfan that produces the treatment pulse that close with described digital-analog convertor Rhizoma Nelumbinis.

An output lead Rhizoma Nelumbinis of wherein said gate circuit and described controller is closed, so that controlledly make described gate circuit produce the conducting of treatment impulse duration.

8, the stimulating apparatus of claim 1, wherein said treatment pulse parameter device comprises the switch that many and described controller output lead Rhizoma Nelumbinis is closed.

9, the stimulating apparatus of claim 8, wherein said treatment pulse parameter device also comprises a mode switch, the pattern when being used to select described stimulating apparatus to move, described mode switch is connected with an input line of described controller.

10, the cutaneous nerve stimulating apparatus that surmounts that is used to produce the electronic stimulation pulse comprises:

The microprocessor that outfan and input are arranged;

Output pulse circuit, it has the outfan Rhizoma Nelumbinis of an input and described microprocessor to close, and it also has an outfan that produces the treatment pulse;

A display, it has the input that closes with the outfan Rhizoma Nelumbinis of described microprocessor, is used for showing the treatment parameter;

The treatment parameter is added on the device of an input of described microprocessor.

11, the stimulating apparatus of claim 10, wherein said microprocessor are by the software program control that is divided into a background program and a foreground program.

12, the stimulating apparatus of claim 11, wherein said foreground program are to carry out with a regular repetition rate.

13, the stimulating apparatus of claim 11, wherein said treatment parameter devices comprises many switches, these switches are by described software program cycle sampling.

14, the stimulating apparatus of claim 13, wherein said treatment parameter devices comprises a mode switch, in order to the pattern of control stimulating apparatus operation, the set of described mode switch is sampled by described software program cycle ground.

15, the stimulating apparatus of claim 10, wherein said output pulse circuit comprise a digital-analog convertor, and wherein said display comprises a liquid crystal display;

Wherein said microprocessor has an output bus that closes with the input Rhizoma Nelumbinis of the input of described digital-analog convertor and described liquid crystal display.

16, the stimulating apparatus of claim 15, wherein said microprocessor is that described display produces control signal on described output bus in most of times, the generation of described shows signal is periodically interrupted, so that produce the output pulse control signal on described output bus.

17, the stimulating apparatus of claim 14, wherein said microprocessor have a data/address bus that closes with described mode switch and display Rhizoma Nelumbinis; When applying control signal for described display, described data/address bus is as an output bus; When to the set cycle sampling of described mode switch, this data/address bus is controlled by microprocessor as an input bus.

18, the stimulating apparatus of claim 10, wherein said output circuit comprise a digital-analog convertor, the data input pin that it has an outfan, a control input end and closes with the outfan Rhizoma Nelumbinis of described microprocessor; This output circuit is carried gate circuit in addition, and it has the input and the outfan that closes with stimulating apparatus outfan Rhizoma Nelumbinis that close with the outfan Rhizoma Nelumbinis of described digital-analog convertor, and a control input end.

Described microprocessor has first control line that closes with the control input end Rhizoma Nelumbinis of described digital-analog convertor, is used to cause that transducer produces output voltage; Also have second control line that closes with the control input end Rhizoma Nelumbinis of described conveying gate circuit, be used to make gate circuit producing the conducting of treatment impulse duration.

19, the stimulating apparatus of claim 18 comprises that also one second is carried gate circuit, and it has the input and the outfan that closes with the stimulating apparatus second outfan Rhizoma Nelumbinis that close with the outfan Rhizoma Nelumbinis of described digital-analog convertor, and a control input end;

The 3rd control line that wherein said microprocessor has one and described second control input end Rhizoma Nelumbinis of carrying gate circuit to close is used to make second to carry gate circuit to produce the conducting of treatment impulse duration at second outfan.

20, the stimulating apparatus of claim 18, wherein said digital-analog convertor also comprise a reference voltage input terminal, and the control during the treatment pulse produces of wherein said microprocessor applies reference voltage for described reference voltage input terminal.

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