CN205163912U - Medium frequency electro -therapeutic appearance - Google Patents
Medium frequency electro -therapeutic appearance Download PDFInfo
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- CN205163912U CN205163912U CN201520974952.3U CN201520974952U CN205163912U CN 205163912 U CN205163912 U CN 205163912U CN 201520974952 U CN201520974952 U CN 201520974952U CN 205163912 U CN205163912 U CN 205163912U
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- intermediate frequency
- therapeutic apparatus
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Abstract
The utility model provides a medium frequency electro -therapeutic appearance solves the technical problem that the unidirectional pulse electric current that exists has electrolysis, serious skin irritation in the current electro -therapeutic apparatus. Including singlechip, pulse driving circuit and impulse transformer, pulse driving circuit includes positive pulse driving circuit and burden pulse driving circuit, a IO port of singlechip, positive pulse driving circuit of single chip microcomputer control and the work in turn of burden pulse driving circuit are connected respectively to positive pulse driving circuit's input and burden pulse driving circuit's input, impulse transformer's once side both ends are connected respectively to positive pulse driving circuit's output and burden pulse driving circuit's output, first electrode piece and second electrode piece are connected respectively to impulse transformer's secondary side both ends. Work in turn through positive pulse driving circuit and burden pulse driving circuit realizes pulse current's two -way switching, has alleviated skin irritation's degree.
Description
Technical field
This utility model belongs to technical field of medical instruments, specifically, relates to a kind of electro-therapeutic apparatus of intermediate frequency.
Background technology
Electric therapeutic instrument is the pulse electrical signal by certain voltage and frequency, and being connected with human body by motor stimulates a kind of physical therapy apparatus of human body.Because a lot of ingredients of tissue all exist certain electric characteristics, when being subject to electricity irritation, the muscle of human body, nerve and body fluid, blood etc. all can produce physical and chemical reaction to a certain degree.
Low-frequency electrotherapeutic and electrotherapy are modal electrotherapy apparatuses, improve pain and regulate function of nervous system to have certain curative effect by electrotherapy.Like product exports in the market is substantially all unidirectional pulse electric current, and the time of unidirectional pulse electric current is of short duration, and the sense of current immobilizes, and has electrolysis, serious to skin irritation, it reduces the physiotheraping effect of electric therapeutic instrument.
Summary of the invention
This utility model provides a kind of electro-therapeutic apparatus of intermediate frequency, solves the unidirectional pulse electric current existed in existing electric therapeutic instrument and has electrolysis, the technical problem of serious chafe.
For solving the problems of the technologies described above, this utility model is achieved by the following technical solutions:
Propose a kind of electro-therapeutic apparatus of intermediate frequency, comprise single-chip microcomputer, pulse driving circuit and pulse transformer; Described pulse driving circuit comprises positive pulse drive circuit and negative pulse drive circuit; Input and the input of described negative pulse drive circuit of described positive pulse drive circuit are connected an I/O port of described single-chip microcomputer respectively, positive pulse drive circuit described in described Single-chip Controlling and the alternation of described negative pulse drive circuit; Outfan and the outfan of described negative pulse drive circuit of described positive pulse drive circuit are connected the primary side two ends of described pulse transformer respectively; The secondary side two ends of described pulse transformer connect the first electrode slice and the second electrode slice respectively.
Further, described electro-therapeutic apparatus of intermediate frequency also comprises current-limiting protection circuit; Described current-limiting protection circuit comprises current sample assembly, voltage emitter follower, signal amplifier and comparator; Described current sample assembly is connected between the primary side centre tap of driving power and described pulse transformer; Two inputs of described voltage emitter follower connect on the primary side centre tap of driving power and described pulse transformer respectively; The input of the outfan connection signal amplifier of described voltage emitter follower, the outfan of described signal amplifier connects an input of described comparator, another input of described comparator connects reference voltage, and the outfan of described comparator connects an I/O port of described single-chip microcomputer.
Further, described positive pulse drive circuit and described negative pulse drive circuit are respectively combination switch pipe.
Further, described current sample assembly is constantan wire.
Further, described electro-therapeutic apparatus of intermediate frequency also comprises the display device be connected with described single-chip microcomputer; Described display device is fixed on the inner side of described electro-therapeutic apparatus of intermediate frequency case top lid.
Further, described display device is LED charactron.
Further, described electro-therapeutic apparatus of intermediate frequency also comprises the mode switching key and electrotherapy intensity button that are connected with described single-chip microcomputer.
Compared with prior art, advantage of the present utility model and good effect are: the electro-therapeutic apparatus of intermediate frequency that this utility model embodiment proposes, positive pulse drive circuit and negative pulse drive circuit is included in pulse driving circuit, single-chip microcomputer controls positive and negative two pulse driving circuit alternations respectively by two I/O ports, when positive pulse drive circuit works, output cathode pulse and the negative pole pulse respectively of the first electrode slice be connected with the secondary side of pulse transformer and the second electrode slice; When negative pulse drive circuit works, output negative pole pulse and the positive pole pulse respectively of the first electrode slice be connected with the secondary side of pulse transformer and the second electrode slice; The mode of this positive negative pulse stuffing drive circuit alternation, the direction of the current impulse that two electrode slices are exported is also changing of replacing, thus change the mode of the unidirectional pulse electric current of existing electro-therapeutic apparatus of intermediate frequency, make to stimulate the direction of the pulse current of human body periodically to change, reduce electrolysis, alleviate the degree of chafe, thus solve the unidirectional pulse electric current existed in existing electric therapeutic instrument and there is electrolysis, the technical problem of serious chafe.
Simultaneously; the current-limiting protection circuit increased; its current sample assembly gathers the intensity of output current; and through signal amplify, relatively after output in single-chip microcomputer; single-chip microcomputer can be made to regulate the work of positive negative pulse stuffing drive circuit, such as, when output current intensity is excessive according to the output current intensity of sampling; control to stop positive negative pulse stuffing drive circuit works, thus improve the security performance of product.
After reading the detailed description of this utility model embodiment by reference to the accompanying drawings, other features of the present utility model and advantage will become clearly.
Accompanying drawing explanation
Fig. 1 is the circuit framework figure of the electro-therapeutic apparatus of intermediate frequency that this utility model embodiment proposes;
Fig. 2 is the circuit framework figure of the electro-therapeutic apparatus of intermediate frequency that this utility model embodiment proposes;
Fig. 3 is the specific embodiment figure of the electro-therapeutic apparatus of intermediate frequency that this utility model embodiment proposes.
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described in more detail.
As shown in Figure 1, be the circuit framework figure of the electro-therapeutic apparatus of intermediate frequency that this utility model embodiment proposes, comprise single-chip microcomputer 11, pulse driving circuit and pulse transformer T; Pulse driving circuit comprises positive pulse drive circuit 121 and negative pulse drive circuit 122.
The input of positive pulse drive circuit 122 and the input of negative pulse drive circuit 122 are connected an I/O port of single-chip microcomputer 11 respectively, and single-chip microcomputer 11 controls positive pulse drive circuit 121 and negative pulse drive circuit 122 alternation; The outfan of positive pulse drive circuit 121 is connected the primary side two ends of pulse transformer T respectively with the outfan of negative pulse drive circuit 122.
The secondary side two ends of pulse transformer T connect the first electrode slice A and the second electrode slice B respectively.The primary side centre tap of pulse transformer T connects driving voltage VDD.
Owing to including positive pulse drive circuit and negative pulse drive circuit in pulse driving circuit, single-chip microcomputer controls positive and negative two pulse driving circuit alternations respectively by two I/O ports, when positive pulse drive circuit works, the first electrode slice A be connected with the secondary side of pulse transformer and the second electrode slice B is output cathode pulse and negative pole pulse respectively, when negative pulse drive circuit works, the first electrode slice A be connected with the secondary side of pulse transformer and the second electrode slice B is output negative pole pulse and positive pole pulse respectively, the mode of this positive negative pulse stuffing drive circuit alternation, the direction of the current impulse that two electrode slices are exported is also changing of replacing, thus change the mode that existing electric therapeutic instrument exports unidirectional pulse electric current, the direction of the pulse current stimulating human body is made alternately to control the cycle of positive negative pulse stuffing drive circuit according to single-chip microcomputer in periodically changing, avoid unidirectional pulse electric current and stimulate human body for a long time, and then reduce electrolysis, alleviate the degree of chafe, thus solve the unidirectional pulse electric current existed in existing electric therapeutic instrument there is electrolysis, the technical problem of serious chafe.
This electro-therapeutic apparatus of intermediate frequency also comprises current-limiting protection circuit; Current-limiting protection circuit comprises current sample assembly R, voltage emitter follower U1, signal amplifier U2 and comparator U3; The preferred constantan wire of current sample assembly, between the primary side centre tap being connected to driving power VDD and pulse transformer; Two inputs of voltage emitter follower U1 connect on the primary side centre tap of driving power VDD and pulse transformer respectively; The input of the outfan connection signal amplifier U2 of voltage emitter follower U1, the outfan of signal amplifier U2 connects an input of comparator U3, another input of comparator U3 connects an I/O port of the outfan connection single-chip microcomputer 11 of reference voltage V CC, comparator U3.
During work, the electric current that constantan wire sampling positive pulse drive circuit or negative pulse drive circuit export, output current is after the amplification of voltage emitter follower and signal amplifier, compare with the reference voltage V CC of comparator, output high level or low level are to single-chip microcomputer, and single-chip microcomputer controls the duty of two pulse driving circuits according to the change of low and high level.Such as; when output current intensity is excessive; connect the voltage of comparator in-phase end higher than the reference voltage connecting comparator end of oppisite phase; then comparator exports high level; single-chip microcomputer, when receiving this high level, controls positive negative pulse stuffing drive circuit and quits work, and the first electrode and the second electrode no pulse electric current are exported; protect when output current intensity is too high physical therapy patient to suffer high galvanism, thus improve the security performance of product.
Preferably, positive pulse drive circuit and negative pulse drive circuit are respectively combination switch pipe and configuration circuit thereof.
As shown in Figure 2, the electro-therapeutic apparatus of intermediate frequency that the utility model proposes, also comprises the display device 13 and function button 14 that are connected with single-chip microcomputer 11, such as mode switching key and electrotherapy intensity button; Display device 13 is LED charactron preferably, is fixed on the inner side of electro-therapeutic apparatus of intermediate frequency case top lid.Such as, adopt two groups of LED number pipes to show electrotherapy pattern and electrotherapy intensity respectively, often organize charactron and correspondence can also be provided with " UP " and " DOWN " button.
As shown in Figure 3, for a specific embodiment of the electro-therapeutic apparatus of intermediate frequency that this utility model embodiment proposes, inside the upper cover of this electro-therapeutic apparatus of intermediate frequency housing, be provided with pattern display charactron 101, mode switching key 102, electrotherapy intensity button 103, electrotherapy intensity display charactron 104; Housing rear end is provided with supply socket 105, on and off switch 106 and two electrode slice sockets 107.
During use, first two electrode slice A and B are connected on the electrode slice socket on electro-therapeutic apparatus of intermediate frequency rear end face, socket power line in supply socket 105 after, control on and off switch 106 switch on power.An electrode slice is positioned on the area skin of somagenic need electrotherapy, another electrode slice is positioned over health another one needs the area skin of electrotherapy administers electrotherapy treatment, in therapeutic process, electrotherapy pattern is switched, the numbering that the pattern that the display of pattern display charactron 101 switches is corresponding by mode switching key 102; According to electrotherapy sensation or appointment settings, switch electrotherapy intensity by electrotherapy intensity button 103, electrotherapy intensity display charactron 104 shows numbering corresponding to electrotherapy intensity.
It should be noted that; above-mentioned explanation is not to restriction of the present utility model; this utility model is also not limited in above-mentioned citing; the change that those skilled in the art make in essential scope of the present utility model, remodeling, interpolation or replacement, also should belong to protection domain of the present utility model.
Claims (7)
1. an electro-therapeutic apparatus of intermediate frequency, is characterized in that, comprises single-chip microcomputer, pulse driving circuit and pulse transformer; Described pulse driving circuit comprises positive pulse drive circuit and negative pulse drive circuit;
Input and the input of described negative pulse drive circuit of described positive pulse drive circuit are connected an I/O port of described single-chip microcomputer respectively, positive pulse drive circuit described in described Single-chip Controlling and the alternation of described negative pulse drive circuit; Outfan and the outfan of described negative pulse drive circuit of described positive pulse drive circuit are connected the primary side two ends of described pulse transformer respectively;
The secondary side two ends of described pulse transformer connect the first electrode slice and the second electrode slice respectively.
2. electro-therapeutic apparatus of intermediate frequency according to claim 1, is characterized in that, described electro-therapeutic apparatus of intermediate frequency also comprises current-limiting protection circuit; Described current-limiting protection circuit comprises current sample assembly, voltage emitter follower, signal amplifier and comparator;
Described current sample assembly is connected between the primary side centre tap of driving power and described pulse transformer; Two inputs of described voltage emitter follower connect on the primary side centre tap of driving power and described pulse transformer respectively; The input of the outfan connection signal amplifier of described voltage emitter follower, the outfan of described signal amplifier connects an input of described comparator, another input of described comparator connects reference voltage, and the outfan of described comparator connects an I/O port of described single-chip microcomputer.
3. electro-therapeutic apparatus of intermediate frequency according to claim 1, is characterized in that, described positive pulse drive circuit and described negative pulse drive circuit are respectively combination switch pipe.
4. electro-therapeutic apparatus of intermediate frequency according to claim 2, is characterized in that, described current sample assembly is constantan wire.
5. electro-therapeutic apparatus of intermediate frequency according to claim 1, is characterized in that, described electro-therapeutic apparatus of intermediate frequency also comprises the display device be connected with described single-chip microcomputer; Described display device is fixed on the inner side of described electro-therapeutic apparatus of intermediate frequency case top lid.
6. electro-therapeutic apparatus of intermediate frequency according to claim 5, is characterized in that, described display device is LED charactron.
7. electro-therapeutic apparatus of intermediate frequency according to claim 1, is characterized in that, described electro-therapeutic apparatus of intermediate frequency also comprises the mode switching key and electrotherapy intensity button that are connected with described single-chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520974952.3U CN205163912U (en) | 2015-12-01 | 2015-12-01 | Medium frequency electro -therapeutic appearance |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520974952.3U CN205163912U (en) | 2015-12-01 | 2015-12-01 | Medium frequency electro -therapeutic appearance |
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| CN205163912U true CN205163912U (en) | 2016-04-20 |
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| CN201520974952.3U Active CN205163912U (en) | 2015-12-01 | 2015-12-01 | Medium frequency electro -therapeutic appearance |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105832308A (en) * | 2016-04-22 | 2016-08-10 | 深圳还是威健康科技有限公司 | Wake-up device and method |
| CN106823143A (en) * | 2017-03-20 | 2017-06-13 | 广州市家佑医疗科技有限公司 | Medium-frequency pulse electro-therapeutic apparatus and impulse electronic therapeutic meter control system |
| CN110785206A (en) * | 2017-12-25 | 2020-02-11 | 科技连结股份有限公司 | Living body stimulating apparatus |
-
2015
- 2015-12-01 CN CN201520974952.3U patent/CN205163912U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105832308A (en) * | 2016-04-22 | 2016-08-10 | 深圳还是威健康科技有限公司 | Wake-up device and method |
| CN106823143A (en) * | 2017-03-20 | 2017-06-13 | 广州市家佑医疗科技有限公司 | Medium-frequency pulse electro-therapeutic apparatus and impulse electronic therapeutic meter control system |
| CN110785206A (en) * | 2017-12-25 | 2020-02-11 | 科技连结股份有限公司 | Living body stimulating apparatus |
| CN110785206B (en) * | 2017-12-25 | 2023-10-13 | 科技连结股份有限公司 | biological stimulation device |
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