CN2912678Y

CN2912678Y - Portable intelligent electrotherapy equipment

Info

Publication number: CN2912678Y
Application number: CN 200520078198
Authority: CN
Inventors: 李威; 王禹桥; 蔡文娟; 杨雪峰
Original assignee: China University of Mining and Technology CUMT
Current assignee: China University of Mining and Technology CUMT
Priority date: 2005-11-29
Filing date: 2005-11-29
Publication date: 2007-06-20
Anticipated expiration: 2015-11-29

Abstract

A portable intelligent electrotherapy treatment device includes a main machine and two special treatment electrodes, the utility model is formed by connecting a single-chip microcomputer circuit, an expanded keyboard circuit, a display circuit, a signal amplifying circuit and an acousto-optic alarm circuit, and the utility model uses a special power supply circuit for power supply. As the control core, the single-chip microcomputer has the functions of generating the treatment waveform, keyboard scanning, displaying the treatment time and treatment intensity, amplifying the waveform and so on. When in use, the users select the treatment projects and set the treatment time and treatment intensity. After the single-chip microcomputer scanning the information of the users, the set treatment parameters of the users are displayed, and then the corresponding treatment waveform function is invoked. The treatment electrical signals are act on the treatment site of the human body through two special treatment electrodes. When the treatment time is over, the single-chip microcomputer controls the alarm circuit to alarm, so as to notice the users the end of the treatment. The utility model has simple operation, small size, easy carry and strong practicability.

Description

The portable intelligent electrotherapeutic therapy apparatus

One, technical field

This utility model relates to the portable intelligent electrotherapeutic therapy apparatus, is particularly useful for the rehabilitation treatment of hospital and patient in family.

Two, background technology

Only there is the minority therapeutic instrument for rehabilitation to realize computerized, sequencing and prescriptionization at present, but the strong comprehensive electric therapeutic instrument of most of electrotherapy apparatuses, especially function, still rests on low-level, the low level, mainly show as: 1) function singleness, complex operation; 2) technology aging, parameter error is big; 3) poor reliability, safety coefficient is low.And the development of naturopathy has become a kind of new treatment approach safely and effectively, is exactly one of method the most frequently used in the naturopathy method as electrotherapy.Electrotherapy apparatus is an electric energy treatment disease of utilizing its release, so electrotherapy apparatus is difficult in the daily life and is promoted the use of.

Three, summary of the invention

At the problems referred to above, the purpose of this utility model provides a kind of easy to use, easy operating, therapeutic effect is good, the layman uses portable multifunctional intelligence electric therapeutic instrument.

This utility model portable intelligent electrotherapeutic therapy apparatus, it comprises main frame and two special for treating electrodes, this therapeutic instrument comprises single-chip microcomputer, warning circuit, D/A converting circuit, drive circuit, keyboard scanning circuit, keyboard, display driver circuit, charactron; Wherein: single-chip microcomputer is connected with charactron display interface chip with keyboard by serial line interface, keyboard is connected with segment encode, anode and the bit code of charactron display interface chip with charactron, and be connected with alignment with the line of keyboard matrix, single-chip microcomputer outputs to the DAC0 pin by D/A converting circuit with analogue signal, receive follow-up pulse amplifying circuit again, the P0.0 mouth of single-chip microcomputer links to each other with warning circuit, send alarm signal by warning circuit, notify the user to treat and finish, the user gets final product powered-down.Power supply adopts home-use 50Hz alternating current as power supply, through be converted into after power circuit transformation, rectification, the filtering subsequent conditioning circuit required+5V and+the 12V unidirectional current.It is the control core that circuit part is selected single-chip microcomputer for use, and keyboard and display interface chip are selected CH451 for use.The P1.7 of single-chip microcomputer, P0.1, P1.6 and external interrupt INT0 pin link to each other with DIN, DCLK, LOAD, the DOUT pin of interface chip CH451 respectively.Work as energized, set treatment time, press function key as required and determine the treatment project, scan the information of user's setting as the single-chip microcomputer of control core by keyboard and display interface chip CH451.Transmission line of information as single-chip microcomputer and keyboard and display interface chip, single-chip microcomputer calls the corresponding treatment wave function according to the key assignments of the function key that scans, the function of treatment wave function is to be that the impulse modulation of certain frequency is the triangular wave or the trapezoidal wave of the Strength Changes all set with the user in amplitude and cycle with frequency, and this waveform is by the DAC0 mouth output of single-chip microcomputer.The treatment waveform acts on human body through behind the follow-up amplifying circuit by the special for treating electrode.After pressing initiating key, show treatment time by a second minimizing, the treatment time that the user sets finishes.

This utility model portable intelligent electrotherapeutic therapy apparatus has keyboard scan, treatment time and the demonstration of treatment intensity, D/A conversion and two-way waveshape signal and amplifies functions such as output.Treatment time is set by charactron by keyboard before treatment voluntarily by the user, and scope is 0-40 minute; The intensity of the treatment signal of telecommunication is regulated according to the response situation of self accordingly by the user, and scope is the 0-250 shelves.The electrical stimulation signal of this electric therapeutic instrument acts on human body by two external accessories, and external accessories is the treatment electrode special, and its therapeutic effect is good, can recover some body functions of puerpera under situation without any side effects; Simple to operate, intensity of electric stimulus can be regulated in therapeutic process as required; The electricity irritation of this instrument is except promoting the local blood circulation, can also reach stimulates the meridians acupoint of human body than deep layer, so can get through the meridians blood vessels, promote the recovery of body function, 12 kinds of treatment functions such as it also has lactogenic in puerperal, lactiferous ducts conducting, the involution of uterus, urinate after promoting production, postpartum recovery.It is functional strong, the working method prescriptionization; Parameter error is little, good reliability, safety coefficient height; Simple structure, volume is little; Widely applicable, be not limited only to hospital and adopt, also be suitable for vast family and use.

Four, description of drawings

Accompanying drawing 1 is a circuit block diagram of the present utility model.

Accompanying drawing 2 is circuit theory diagrams of the present utility model.

Five, the specific embodiment

Below in conjunction with accompanying drawing an embodiment of the present utility model is further described:

This utility model portable intelligent electrotherapeutic therapy apparatus, shown in Figure 1, the employing power supply is 220 volts 50 hertz a civil power, when electrotherapy, exchanges 220 volts by transformator and rectification, difference

output dc voltage

3V, 5V, 12V after the filtering.3V voltage is chip and the single-chip microcomputer power supply that resets, and 5V voltage is keyboard scan and display driver chip power supply, and 12V voltage is follow-up pulse amplifying circuit power supply.Single-chip microcomputer obtains the treatment parameter that the user sets by scan module, and treatment intensity and treatment time are shown by 7 charactrons by display driver circuit.When the treatment time that the user sets finishes, report to the police by warning circuit, the user can close therapeutic instrument and finish treatment.CPU and D/A converting circuit produce the treatment waveform, and drive circuit should be treated after the waveform amplification promptly exportable.

Shown in Figure 2, single-chip microcomputer IC1:P89LPC935 is connected with charactron display interface chip IC 2:CH451 with keyboard by serial line interface.Keyboard links to each other with P1.7, P0.1, P1.6 and the external interrupt INT0 of single-chip microcomputer IC1:P89LPC935 respectively with DIN, DCLK, LOAD, the DOUT pin of charactron display interface chip IC 2:CH451.DIN is the data input of input string line interface, the data load of LOAD input string line interface, the data clock of DCLK input string line interface, the data output and the keyboard interrupt of DOUT output serial line interface.SEG7～SEG0 of keyboard and charactron display interface chip IC 2:CH451 is ternary output and input, and the section of charactron drives, the keyboard scan input, and high level is effective.This electric therapeutic instrument needs charactron IC3 and 8 functional indicator light LED1～LED8 of 7 common cathodes.Pin SEG0, the SEG1 of keyboard and charactron display interface chip IC 2:CH451, SEG2, SEG3, SEG4, SEG5, SEG6, SEG7 are connected with the anode of segment encode a, b, c, d, e, f, g, h, dp and 8 functional indicator lights of charactron IC3 and line S0, S1, S2, S3, S4, S5, S6, the S7 of keyboard matrix IC4 respectively.Pin DIG0, the DIG1 of IC2:CH451, DIG2, DIG3, DIG4, DIG5, DIG6 are connected with bit code D0, D1, D2, D3, D4, D5, the D6 of 7 charactron IC3.Pin DIG0, the DIG1 of IC2:CH451, DIG2 are connected with alignment D0, D1, the D2 of keyboard matrix IC4 simultaneously.Keyboard and charactron display interface chip IC 2:CH451 read the key assignments signal and the good digital shows signal of decoding are sent to charactron from keyboard and show.Single-chip microcomputer is judged if there is function key to press, and then calls corresponding wave function, and the waveshape signal of generation is by the DAC0 pin output of single-chip microcomputer IC1:P89LPC935.Warning circuit is by resistance R 1, R2, R3, R4, audion T1, T2, and reverser IC5A:74HC04 and buzzer: BUZZ forms.

Its operation principle: when treatment time arrived, the P0.0 of single-chip microcomputer IC1:P89LPC935 exported high level, audion T1, T2 conducting, and buzzer: BUZZ reports to the police.R5, R6, T3, reverser IC5B:74HC04 and switch chip IC6:CD4066 constitute an on-off circuit, when the initiating key of therapeutic instrument is pressed, the P0.2 foot output high level of single-chip microcomputer IC1:P89LPC935, T5 and switch chip IC6:CD4066 conducting, the inner integrated DA conversion module of single-chip microcomputer IC1:P89LPC935 will transform good analogue signal and output to the DAC0 pin.This signal passes to follow-up pulse amplifying circuit by switch chip IC6:CD4066.The treatment waveshape signal is coupled to the two-stage amplifying circuit that T4, T5 form, the amplification of adjustable resistor RE2 scalable T5:TIP41C by capacitance CE9.1,3 feet of adjustable resistor RE1, diode D1 and transformator BK and 2,4 feet of R12 and transformator BK are all formed a loop, and purpose is in order to eliminate the back-emf that transformer coil produces when powering on.Treatment waveshape signal after the amplification acts on human body by two therapeutic electrodes behind the pulse transformator.

Claims

1, a kind of portable intelligent electrotherapeutic therapy apparatus, it comprises main frame and two special for treating electrodes, it is characterized in that this therapeutic instrument comprises single-chip microcomputer (CPU), warning circuit, D/A converting circuit, drive circuit, keyboard scanning circuit, keyboard, display driver circuit, charactron; Wherein: single-chip microcomputer is connected with charactron display interface chip with keyboard by serial line interface, keyboard is connected with segment encode, anode and the bit code of charactron display interface chip with charactron, and be connected with alignment with the line of keyboard matrix, single-chip microcomputer outputs to the DACO pin by D/A converting circuit with analogue signal, receive follow-up pulse amplifying circuit again, the P0.0 mouth of single-chip microcomputer links to each other with warning circuit.

2, portable intelligent electrotherapeutic therapy apparatus according to claim 1 is characterized in that: power supply adopts home-use 50Hz alternating current as power supply, through be converted into after power circuit transformation, rectification, the filtering subsequent conditioning circuit required+5V and+the 12V unidirectional current.