CN203379483U - Low-frequency therapeutic apparatus with output electrode short-circuiting protection and falling-off alarm functions - Google Patents
Low-frequency therapeutic apparatus with output electrode short-circuiting protection and falling-off alarm functions Download PDFInfo
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- CN203379483U CN203379483U CN201320440978.0U CN201320440978U CN203379483U CN 203379483 U CN203379483 U CN 203379483U CN 201320440978 U CN201320440978 U CN 201320440978U CN 203379483 U CN203379483 U CN 203379483U
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- chip microcomputer
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Abstract
The utility model discloses a low-frequency therapeutic apparatus with output electrode short-circuiting protection and falling-off alarm functions comprises a single chip microcomputer, a signal conditioning module, an output electrode, a current sampling circuit, an A/D converter, an operational amplifier and an alarm; the single chip microcomputer is connected with the output electrode through the signal conditioning module; the alarm and the A/D converter are respectively connected with the single chip microcomputer; one end of the current sampling circuit is connected with the output electrode of the low-frequency therapeutic apparatus; and the other end of the current sampling circuit is connected with the A/D converter through the operational amplifier. The low-frequency therapeutic apparatus of the utility model can detect whether the output electrode is in short circuiting or falls off, and therefore, with the low-frequency therapeutic apparatus of the utility model adopted, situations of reduction of therapeutic effect and equipment failure which are caused by the short circuiting or falling off of the output electrode can be effectively decreased. The low-frequency therapeutic apparatus has the advantages of simple structure and low cost.
Description
Technical field
This utility model relates to a kind of low-frequency therapy apparatus, particularly a kind of low-frequency therapy apparatus with output electrode short-circuit protection and dropping-alarming function.
Background technology
Low-frequency therapy apparatus is to take the Chinese medicine meridian theory as basis, with modern electronic technology, combines, and utilizes impulse waveform to stimulate human acupoint to reach treatment, health care purpose Medical Equipment.The low-frequency current of low-frequency therapy apparatus output is stimulated local muscle, nerve, blood vessel, and blood circulation promoting increases local organization blood supply, oxygen supply.When low-frequency current stimulating acupoint and pain spot, can produce vibratory sense and muscle twitches, the crude fibre excitement, make to conduct the closing gate of the pain sensation, and the pain valve improves, and analgesic effect is played in endogenous opioid substances release.Hemiplegia and patient with brain trauma, through low-frequency electrostimulating repeatedly, can remove muscular spasm, and re-establish neutral net in cerebral cortex.Low-frequency therapy apparatus is mainly, by output electrode, low frequency pulse current is imported to human body, is easy in therapeutic process occur that the low-frequency therapy apparatus output electrode comes off or the fortuitous event such as short circuit, thereby affects therapeutic effect and damage equipment.
The utility model content
The purpose of this utility model is to overcome the shortcoming of prior art with not enough; a kind of low-frequency therapy apparatus with output electrode short-circuit protection and dropping-alarming function is provided, can effectively reduces because of the short circuit of low-frequency therapy apparatus output electrode or the therapeutic effect that brings of coming off descends and the situation of equipment fault.
The purpose of this utility model is achieved through the following technical solutions: the low-frequency therapy apparatus with output electrode short-circuit protection and dropping-alarming function, comprise single-chip microcomputer, signal condition module, output electrode, current sampling circuit, A/D converter, operational amplifier and alarm; Described single-chip microcomputer is connected with output electrode by the signal condition module, described alarm is connected with single-chip microcomputer respectively with A/D converter, one end of described current sampling circuit is connected with the output electrode of low-frequency therapy apparatus, and the other end is connected with A/D converter by operational amplifier.
Preferably, described A/D converter is ADC0808.
Preferably, described operational amplifier is OP07.
Preferably, described single-chip microcomputer is S3C2440.
Preferably, described current sampling circuit is comprised of a resistance, and described resistance is connected on output electrode.
This utility model has following advantage and effect with respect to prior art:
(1) this utility model low-frequency therapy apparatus detects the output current virtual value of output electrode by single-chip microcomputer, to judge whether output electrode short circuit or the phenomenon come off occur, when this utility model device detects output electrode and short circuit occurs, control output electrode and stop output current signal, prevent from causing because electric current is excessive the problems such as equipment fault; When device of the present utility model detects output electrode and comes off, control alarm and reported to the police, inform user, to avoid the situation that comes off and cause therapeutic effect to reduce because of one or more output electrodes.
(2) structure of this utility model device forms simply, has advantages of that production cost is low.
The accompanying drawing explanation
Fig. 1 is the structured flowchart of this utility model device.
The specific embodiment
Below in conjunction with embodiment and accompanying drawing, this utility model is described in further detail, but embodiment of the present utility model is not limited to this.
Embodiment
As shown in Figure 1, the present embodiment discloses a kind of low-frequency therapy apparatus with output electrode short-circuit protection and dropping-alarming function, and this device comprises that single-chip microcomputer S3C2440, signal condition module, output electrode, electric current adopt circuit, A/D converter, operational amplifier OP07 and alarm; S3C2440 is connected with output electrode by the signal condition module, and the pwm signal that S3C2440 produces outputs to output electrode after the signal condition resume module; Alarm is connected with single-chip microcomputer respectively with A/D converter, and an end of current sampling circuit is connected with the output electrode of low-frequency therapy apparatus, and the other end is connected with A/D converter by operational amplifier.
The current sampling circuit adopted in the present embodiment is comprised of a sampling resistor, and sampling resistor is connected on output electrode, and operational amplifier is amplified the voltage on sampling resistor, and the voltage signal after amplifying is sent on A/D converter.
The A/D converter adopted in the present embodiment is ADC0808, ADC0808 is that sample frequency is 8, with approximation theory successively, carries out analog-to-digital device, there are 8 passage variable connectors its inside, it can latch the signal after decoding according to address code, and one in a gating 8 road analog input signals is carried out the A/D conversion.ADC0808 is input to the single-chip microcomputer input after voltage signal is carried out to the A/D conversion, and single-chip microcomputer, according to the magnitude of voltage obtained, calculates the current effective value in sampling resistor.
The electric current when current effective value that calculates and electrode are normally exported compares, and just can be judged, output electrode comes off or short circuit.
The current effective value detected when single-chip microcomputer is at I
min～I
maxin the time of in scope, be considered as output electrode and connect normal.Electric current I wherein
min～I
maxcurrent average scope while working for output electrode.
The current effective value detected when single-chip microcomputer is far beyond I
maxthe time, be considered as the output electrode short circuit, now single-chip microcomputer stops the output of pwm signal.
The virtual value that electric current detected when single-chip microcomputer is zero, illustrates that output electrode comes off, and the Single-chip Controlling alarm sends alarm signal, with the notice user.
Above-described embodiment is preferably embodiment of this utility model; but embodiment of the present utility model is not restricted to the described embodiments; other any do not deviate from change, the modification done under spirit of the present utility model and principle, substitutes, combination, simplify; all should be equivalent substitute mode, within being included in protection domain of the present utility model.
Claims (5)
1. the low-frequency therapy apparatus that there is output electrode short-circuit protection and dropping-alarming function, comprise single-chip microcomputer, signal condition module and output electrode, described single-chip microcomputer is connected with output electrode by the signal condition module, it is characterized in that, also comprise current sampling circuit, A/D converter, operational amplifier and alarm; Described alarm is connected with single-chip microcomputer respectively with A/D converter, and an end of described current sampling circuit is connected with the output electrode of low-frequency therapy apparatus, and the other end is connected with A/D converter by operational amplifier.
2. the low-frequency therapy apparatus with output electrode short-circuit protection and dropping-alarming function according to claim 1, is characterized in that, described A/D converter is ADC0808.
3. the low-frequency therapy apparatus with output electrode short-circuit protection and dropping-alarming function according to claim 1, is characterized in that, described operational amplifier is OP07.
4. the low-frequency therapy apparatus with output electrode short-circuit protection and dropping-alarming function according to claim 1, is characterized in that, described single-chip microcomputer is S3C2440.
5. the low-frequency therapy apparatus with output electrode short-circuit protection and dropping-alarming function according to claim 1, is characterized in that, described current sampling circuit is comprised of a resistance, and described resistance is connected on output electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320440978.0U CN203379483U (en) | 2013-07-23 | 2013-07-23 | Low-frequency therapeutic apparatus with output electrode short-circuiting protection and falling-off alarm functions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320440978.0U CN203379483U (en) | 2013-07-23 | 2013-07-23 | Low-frequency therapeutic apparatus with output electrode short-circuiting protection and falling-off alarm functions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203379483U true CN203379483U (en) | 2014-01-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320440978.0U Expired - Fee Related CN203379483U (en) | 2013-07-23 | 2013-07-23 | Low-frequency therapeutic apparatus with output electrode short-circuiting protection and falling-off alarm functions |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106383293A (en) * | 2016-10-19 | 2017-02-08 | 成都云处方科技有限责任公司 | Electrotherapeutical instrument with output electrode open circuit and short circuit detection function and detection method |
| CN108187226A (en) * | 2017-12-14 | 2018-06-22 | 深圳华荟智能科技有限公司 | Stimulating system |
| CN109646294A (en) * | 2019-02-25 | 2019-04-19 | 上海中医药大学附属曙光医院 | Leucoderma electric fire needle instrument |
| CN112472061A (en) * | 2020-11-30 | 2021-03-12 | 南京麦澜德医疗科技股份有限公司 | Electrode falling monitoring device and method for sample components |
-
2013
- 2013-07-23 CN CN201320440978.0U patent/CN203379483U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106383293A (en) * | 2016-10-19 | 2017-02-08 | 成都云处方科技有限责任公司 | Electrotherapeutical instrument with output electrode open circuit and short circuit detection function and detection method |
| CN106383293B (en) * | 2016-10-19 | 2023-08-29 | 成都云处方科技有限责任公司 | Electrotherapy instrument with output electrode open-short circuit detection function and detection method |
| CN108187226A (en) * | 2017-12-14 | 2018-06-22 | 深圳华荟智能科技有限公司 | Stimulating system |
| CN108187226B (en) * | 2017-12-14 | 2022-06-17 | 深圳华蘅科技有限公司 | Stimulation system |
| CN109646294A (en) * | 2019-02-25 | 2019-04-19 | 上海中医药大学附属曙光医院 | Leucoderma electric fire needle instrument |
| CN112472061A (en) * | 2020-11-30 | 2021-03-12 | 南京麦澜德医疗科技股份有限公司 | Electrode falling monitoring device and method for sample components |
| CN112472061B (en) * | 2020-11-30 | 2023-12-08 | 南京麦澜德医疗科技股份有限公司 | Electrode falling monitoring device and method for detecting body component |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140108 Termination date: 20200723 |
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| CF01 | Termination of patent right due to non-payment of annual fee |