CN2041574U - Functional restoring instrument for paralytic - Google Patents

Functional restoring instrument for paralytic Download PDF

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Publication number
CN2041574U
CN2041574U CN 87214928 CN87214928U CN2041574U CN 2041574 U CN2041574 U CN 2041574U CN 87214928 CN87214928 CN 87214928 CN 87214928 U CN87214928 U CN 87214928U CN 2041574 U CN2041574 U CN 2041574U
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pulse
instrument
output
adopt
integrated package
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Expired - Lifetime
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CN 87214928
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Chinese (zh)
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林喜荣
陈垦
康吉生
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Tsinghua University
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Tsinghua University
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Abstract

The utility model relates to a functional restoring instrument for a paralytic whose basic principle is that special shape electric pulse is adopted to be applied on the target muscle of the paralytic through electrode function on the surface of the skin, making the target muscle generate muscle movement which is similar to be stimulated by nerve pulse. The circuit part of the functional restoring instrument is composed of a signal generator, a function controller, a direct current transformer, an opto-electronic isolator, a pulse horsepower output device, etc. The utility model has four output channels, the utility model is provided with 11 circulations or continuous output selections, each channel is independent mutually by the opto-electronic isolator, and the functional restoring instrument for the paralytic is provided with 10 rhythms, 3 timings and automatic frequency conversion controlling, and the utility model also adopts the design of a new direct current transformer and the pulse horsepower output device.

Description

Functional restoring instrument for paralytic
This utility model relates to a kind of rehabilitation instrument that the rehabilitation engineering field is used.
Paralysed patient functional rehabilitation instrument is to be the stand new instrument of usefulness of paralytic and high paraplegia patient's rehabilitation and assist control, its ultimate principle is to adopt the electric pulse (Fig. 1) of special shape, act on by skin table electrode on the target flesh of needs of patients treatment, make it to produce to be similar to be subjected to Nerve impulse to stimulate caused muscular movement, to take exercise and muscle strength reinforcing, improve the human body circulation.Instrument is generally by pulse generator, pulse amplifier, and the metal electrode board of power supply and attaching skin is formed.
What the instrument (the CFES-1 type paraplegia therapeutic instrument of patent No. 821109GB 031899 and domestic production) of clinical practice at present adopted is system with one power, each output channel has a common port to link to each other with patient skin, because human body resistance is little, so they all exist each electrode to crosstalk mutually, alignment targets flesh well, inconvenience is applied to the shortcoming of multichannel output, and existing instrument all adopts the unidirectional forward rectangular pulse or the rectangular pulse of negative sense, and the patient has uncomfortable pain when treatment.In addition, existing instrument all lacks automatic conversion pulse frequency, timing controlled stimulation time and selects to replace or circulate stimulates the function of clinical needs such as the rhythm and pace of moving things, the way of output also to have only continuously and interrupted two kinds, and there is the weakness that function is few, power consumption is big in instrument.
This utility model is according to clinical needs, a kind of new design is proposed, the main ripple that adopts a kind of amplitude to regulate continuously is the bidirectional pulse of negative sense, and allow the amplitude of forward echo be 10%~20% of negative sense master wave amplitude, the pain when so more meeting people's physiological requirement and eliminating patient treatment effectively.
The circuit part of instrument is made up of five major parts such as signal generation, function control, DC converting, photoelectricity isolation and pulse power outputs, the theory diagram of circuit is characterized in adopting a four-operational amplifier integrated package to constitute main bang generator, clock pulse generator, alarm signal generator and battery voltage monitoring device and can realizes separately function (Fig. 3) simultaneously as shown in Figure 2; Utilize one four bidirectional analog switch integrated package to realize producing the signal output of four passages by same signal source; Employing by a decade computer/driver integrated package, four dual input or door integrated package and four blade ten spend extravagantly circuit that switch forms realize 11 kinds of circulations or continuously output mode select, between each output channel through the isolation of photoelectrical coupler assembly and separate; Also adopt one 12 binary string linage-counter/frequency divider integrated packages and hilted broadsword ten throw switches to realize 10 kinds of different rhythm and pace of moving things controlled selection, the scope of rhythm and pace of moving things control is 1 second~512 seconds, this assembly is realized three kinds of different timing controlled with two D flip-flop integrated packages and a DPTT double-pole triple throw switch again, the timing controlled time was respectively 0.25 hour, 0.5 hour and 1 hour, timing arrives, and instrument is reported to the police buzzing and also stopped the output of the stimulation pulse signal of each passage automatically.In addition, system also adopt mainly by a decade counter/driver integrated package (with output mode select shared) and the circuit formed of one four bidirectional analog switch integrated package realize the frequency of automatic conversion output pulse signal, the scope of automatic frequency-conversion is 1Hz~30Hz.
This utility model also designs new DC converter and pulse power follower, DC converter (DC-DC, the Ni-Cd battery becomes 200 volts of dc high voltages for 9 volts) conversion efficiency in working range, reach 75%~81.5%, the pulse power output stage is designed to be operated in complete on off state, the power consumption that makes instrument is less than 1W, and battery life can prolong 6~10 times than aforesaid CFES-1 type instrument.
Accompanying drawing 1 is a timing chart.The leading pulse of figure moderate stimulation pulse is a negative-going pulse, the amplitude of pulse is regulated continuously at 0~200 volt, pulsewidth can be 0.2 millisecond~1 millisecond variation, the backhaul of each boost pulse produces the back pulse of a forward, its amplitude is about 10%~20% of main pulse amplitude, and it can eliminate the causalgia sense to the patient treatment position.It is the earth potential of system that (1) among the figure is located.
Accompanying drawing 2 is theory diagrams of circuit.
Accompanying drawing 3 is basic pulse generator (IC1-3 is the core), clock pulse generator (IC1-2 is the core), alarm signal generator (IC1-1 is the core) and battery voltage monitoring device (IC1-4 is the core).
Basic pulse generator is the signal source of output boost pulse, produce frequency adjustable, continuous rectangle square wave that pulsewidth is adjustable, change the parameter of resistance in its RC/ charging and discharging circuit, can produce output frequency is 1Hz, 3Hz, 5Hz, 10Hz, 20Hz, 30Hz, 40Hz, 100Hz, pulsewidth is the rectangle square wave of 0.2ms~1ms.Frequency transformation can manually be selected by one eight key switch, also can be by conversion automatically in the circuit.Resistance R 1 is the pulse-width regulated potentiometer among the figure, and 4. holding among the figure is the main bang outfan.
Clock pulse generator produces the clock signal of 1Hz frequency, as the work clock signal source of timing control circuit, rhythm and pace of moving things control circuit, mode control circuit and basic pulse generator automatic frequency-conversion circuit part.2. holding among the figure is output terminal of clock pulse.
The alarm signal generator produces the square-wave signal that frequency is 3KHz~5KHz, rings the driving source of signal to the buzzer news that stop later on treating as timing.FM is the piezoquartz buzzer among the figure.3. holding among the figure is the control end of buzzer FM.
The battery voltage monitoring device is when using 9VNi-cd battery operated, and when cell voltage during less than 7.5V, control LED 1 is bright, and pilot cell is under-voltage.
IC1 is a high input impedance four-operational amplifier LF347 integrated package, and this has just realized realizing above-mentioned four kinds of functions simultaneously with an integrated package.
Accompanying drawing 4 is the automatic translation circuits of the output signal frequency of basic pulse generator.5. the control end of termination basic pulse generator among the figure.6. the Synchronization Control pulse of terminating systems among the figure.7. termination clock pulse among the figure, clock pulse is produced by rhythm and pace of moving things signal generator.IC2 is a decade computer/pulsqe distributor integrated package, adopts CD4017.IC3 is four bidirectional analog switch integrated packages, adopts CD4066.Under the clock pulse effect, IC2 exports the control signal of two beats, a beat, a beat, three beats respectively, control end input signal as IC3 four path analoging switch, to select rheostatic corresponding resistance parameter in the basic pulse generator frequency conversion RC loop, obtain 1Hz by 5. holding, 5Hz, 10Hz, the persistent period of 30Hz is respectively the control output of two beats, a beat, a beat, three beats.8. the rheostat in the basic pulse generator frequency conversion RC loop among the figure.
Accompanying drawing 5 is output mode selection/control circuit and output signal rhythm and pace of moving things selection/control circuit.9. hold among the figure and 10. hold and connect Synchronization Control pulse and clock pulses respectively.(11) are that four blade ten is spent mode selection switch extravagantly among the figure.K1 and K2 are respectively rhythm and pace of moving things selector switch and intermittently/interrupted way of output selector switches among the figure.IC4 is four bidirectional analog switch integrated packages, adopts CD4066.IC5 is 12 binary string linage-counter/frequency divider integrated packages, adopts CD4040.IC6 is decade computer/pulsqe distributor integrated package, adopts CD4071.IC8 is 33 inputs and door integrated package, adopts CD4073.Under clock pulses control, IC5 produces 1 second~512 seconds rhythm and pace of moving things control signal, is selected the output rhythm and pace of moving things of control main bang by K switch 2.IC6, IC7 and model selection/gauge tap are formed 11 kinds of multi-form output mode control signals, regularly export the control end input signal of control gate through IC7, make the main bang of importing by (12) end among the figure produce 11 different output forms as IC4 four path analoging switch.(13) end output clock pulse among the figure.(14) termination timing controling signal among the figure.
Accompanying drawing 6 is system start-up/reset and timing control circuit.IC9 is two D flip-flop integrated packages, adopts CD4013.Form duty depositor and definition status depositor.(15) end input startup/reset pulse makes this status register be in work waiting state and definition status respectively among the figure.K3 is a starting switch.K4 is three kinds of timing selector switches.After K3 starts, make two status registers be changed to duty and timing removing state respectively.The working control signal of (17) end output will allow the output of mode of operation control signal among the figure, thereby make main bang output to the power output circuit part.When timing arrives, two status registers transfer work waiting state and definition status respectively to, and the output of the output control main bang of (17) end among the figure is stopped.The output of (16) end is timed to alarm control signal among the figure, and the control buzzer sends news and rings.LED 2 among the figure is that clearing lamp is crossed in 1/2nd timings.
Accompanying drawing 7 is the photoelectricity isolation coupling circuit between main bang output circuit and the pulse power output circuit.(18) are the inputs of main bang among the figure.IC10 is a photoelectric isolating coupler spare, adopts 4N25.Through photoelectric coupled device and emitter follower Q2, from the outfan of pulse amplitude regulator potentiometer R2, promptly (19) end output pulse amplitude control signal is given the Pulse Power Magnification level to the output control signal of signal level among the figure by (18) end.Because each passage all and carried out the photoelectricity isolation between the controlled stage of signal, and the Pulse Power Magnification level on each road is powered by an independent winding of DC converting transformator, thereby the pulse output loop of each passage is separate, avoid mutual string to hold together, be convenient to instrument alignment targets flesh when clinical.
In Fig. 8, import from pulse amplitude control signal shown in Figure 7 from (20) end, (21) and (22) represent the skin table electrode of certain passage output, can obtain boost pulse waveform as shown in Figure 1 from these two ends, D1 is operated on off state setting reliably for transistor Q3 and Q4 among the figure, changes the amplitude that the numerical value of R3 and C1 can be regulated forward echo.
The circuit theory diagrams of DC converting level among Fig. 9, its effect is 9 volts nickel-cadmium cell voltage transformation to be become 200 volts high voltage, not gate 1 among the figure, 2 and 3 compositions, one dutycycle is 50% rectangular pulse agitator, because it is long by the time that cut-off state enters degree of depth saturation that transistor carries out the transition to the needed time ratio of cut-off state by the concentration saturation, in order to prevent to produce crossover loss, the two-way waveform that S1 point among the figure and S2 are ordered has stagger the time (Figure 10) of 2 μ s~3 μ s, if two-way waveform symmetry fully is anti-phase, then locate and moment conducting simultaneously to occur at the primary center point (23) of transformator T, thereby influence the efficient of DC converting, according to the design, conversion efficiency can be increased to 75%~81.5% from original 40%~49%, the size of this time of staggering is by R4, C2, D2 and R5, C3, two networks that D3 forms respectively decide, R4=R5=10K Ω~20K Ω wherein, C2=C3=180PF~300PF(micromicrofarad), the frequency of agitator depends primarily on the numerical value of R6 and C4, R6=43K Ω~51K Ω, C4=1000PF~2200PF, frequency of oscillation is about 10KHz~15KHz, (24) end and (25) end output of the high voltage behind the DC converting from Fig. 9.
Instrument is assembled in the casing that a volume is millimeter (height) * 240,200 millimeters (length) * 110 millimeter (wide).
Now existing two paralysed patients, one is in breast 10 position paraplegia, another is to cause paralysis in the type that the traverses damage that breast 11 place's wounds cause, and under the treatment and control of this instrument, can tentatively stand up and do the primitiveness walking by means of hand steered parallel parallel bars indoor.

Claims (3)

1, a kind of paralysed patient functional rehabilitation instrument, its circuit part is made up of major parts such as signal generation, function control, DC converting, photoelectricity isolation and pulse power outputs, and its principal character is:
A. adopt a four-operational amplifier integrated package to realize basic pulse generator, clock pulse generator, alarm signal generator and battery voltage monitoring device simultaneously;
B. adopt one four bidirectional analog switch integrated package to realize producing the output of four passages by same signal source;
C. adopt a decade computer/driver integrated package, one four dual input or door integrated package and four blade ten spend extravagantly circuit that switch forms realize 11 kinds of circulations or continuously output mode select, isolate by the photoisolator assembly between each output channel and separate;
D. adopt one 12 binary string linage-counter/frequency divider integrated packages and hilted broadsword ten throw switches to realize 10 kinds of different rhythm and pace of moving things controlled selection, the scope of rhythm and pace of moving things control is 1 second~512 seconds;
E. adopt two D flip-flop integrated packages and a DPTT double-pole triple throw switch to realize 3 kinds of different timing controlled, the timing controlled time was respectively 1 hour, 0.5 hour and 0.25 hour, timing arrives, instrument can buzzing be reported to the police and from stopping to export boost pulse;
F. adopt mainly by a decade computer/driver integrated package (with output mode select shared) and the circuit formed of one four bidirectional analog switch integrated package realize automatic conversion pulse frequency, the scope of automatic frequency-conversion is 1H z~30H z
2, by the described paralysed patient functional rehabilitation of claim 1 instrument, it is characterized in that introducing in the DC converting level respectively by R4, C2, D2 and R5, C3, two networks that D3 formed, S1 point among the assurance figure and S2 point two-way waveform have 2 μ s~3 μ s(microseconds) stagger the time.
3, by the described paralysed patient functional rehabilitation of claim 1 instrument, it is characterized in that adopting the photoelectricity coupling to realize that each output channel is separate, be convenient to alignment targets flesh when clinical.
CN 87214928 1987-11-05 1987-11-05 Functional restoring instrument for paralytic Expired - Lifetime CN2041574U (en)

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Application Number Priority Date Filing Date Title
CN 87214928 CN2041574U (en) 1987-11-05 1987-11-05 Functional restoring instrument for paralytic

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Application Number Priority Date Filing Date Title
CN 87214928 CN2041574U (en) 1987-11-05 1987-11-05 Functional restoring instrument for paralytic

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CN2041574U true CN2041574U (en) 1989-07-26

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CN 87214928 Expired - Lifetime CN2041574U (en) 1987-11-05 1987-11-05 Functional restoring instrument for paralytic

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1035101C (en) * 1993-01-19 1997-06-11 姜其钧 Electrolytic probe for curing prostatic diseases
CN1990058B (en) * 2005-12-26 2010-08-25 伊藤超短波株式会社 Low-frequency therapeutic apparatus
CN102422273A (en) * 2009-03-30 2012-04-18 美国亚德诺半导体公司 Usb isolator with advanced control features
CN102580237A (en) * 2012-03-02 2012-07-18 天津工业大学 Multifunctional intelligent muscle electric stimulation therapy system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1035101C (en) * 1993-01-19 1997-06-11 姜其钧 Electrolytic probe for curing prostatic diseases
CN1990058B (en) * 2005-12-26 2010-08-25 伊藤超短波株式会社 Low-frequency therapeutic apparatus
CN102422273A (en) * 2009-03-30 2012-04-18 美国亚德诺半导体公司 Usb isolator with advanced control features
CN102580237A (en) * 2012-03-02 2012-07-18 天津工业大学 Multifunctional intelligent muscle electric stimulation therapy system

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