CN204106847U - Portable nerve stimulating apparatus - Google Patents
Portable nerve stimulating apparatus Download PDFInfo
- Publication number
- CN204106847U CN204106847U CN201420210005.2U CN201420210005U CN204106847U CN 204106847 U CN204106847 U CN 204106847U CN 201420210005 U CN201420210005 U CN 201420210005U CN 204106847 U CN204106847 U CN 204106847U
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- Prior art keywords
- transistor
- outfan
- electrode
- voltage
- power supply
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Abstract
The utility model proposes a kind of portable nerve stimulating apparatus, comprise: power supply and voltage generation circuit, the input of voltage generation circuit is connected to power supply, and the outfan of voltage generation circuit is connected respectively to the first emission electrode and the second emission electrode by DC filter.Portable nerve stimulating apparatus of the present utility model, effectively stimulated affected part nerve by voltage, operating process is simple and convenient, for handicapped patient provides convenience.
Description
Technical field
This utility model relates to medical instruments field, particularly a kind of portable nerve stimulating apparatus.
Background technology
A lot of patient with bone fracture, healing the wounds period, there will be amyotrophic complication because muscle cannot obtain exercise, even occurs the situation of nerve numb, nerve necrosis time serious.
Existing Therapeutic Method mainly stimulates muscle by massage and acupuncture, prevents nerve necrosis, but massage and acupuncture need special doctor, very difficult for sickbed patients.
Therefore, how providing a kind of instrument stimulated nervus motorius, prevent nerve necrosis, is current problem demanding prompt solution.
Utility model content
The utility model proposes a kind of portable nerve stimulating apparatus, solve in prior art the problem needing to massage and acupuncture stimulates injury muscle.
The technical solution of the utility model is achieved in that
A kind of portable nerve stimulating apparatus, comprising: power supply and voltage generation circuit, the input of voltage generation circuit is connected to power supply, and the outfan of voltage generation circuit is connected respectively to the first emission electrode and the second emission electrode by DC filter;
Described power supply is set of cells, and its voltage is 10-20V, and described set of cells comprises n the battery be connected in series; N the shorting switch be connected in parallel with respective battery; And with n short circuit control circuit of respective battery coupled in parallel, wherein said each short circuit control circuit receives respective battery both end voltage, and provides control signal according to respective battery both end voltage, in order to be turned on or off by corresponding shorting switch; Described short circuit control circuit comprises: comparator, has in-phase input end, inverting input and outfan; Biasing circuit, has anode and negative terminal, and its anode is coupled to the in-phase input end of comparator; Wherein said battery and shorting switch coupled in parallel are between the in-phase input end and the negative terminal of biasing circuit of comparator, and described shorting switch comprises the control end being coupled to described comparator output terminal; Described shorting switch is mosfet transistor;
Described voltage generation circuit comprises:
Transformator, comprise former limit winding and vice-side winding, former limit winding comprises first end and the second end, vice-side winding comprises first end and the second end, former limit winding first end is connected to described power supply, vice-side winding second end is connected to secondary earth potential, and former limit winding first end and vice-side winding second end are Same Name of Ends;
Switching tube, its source electrode is connected to transformer primary side winding second end, and its drain electrode is connected to former limit earth potential, and its grid is connected to switch driver;
Switch driver, comprise the first transistor and transistor seconds, the first transistor is NPN transistor, transistor seconds is PNP transistor, the base stage of the first transistor and transistor seconds links together as control end, the emitter stage of the first transistor and transistor seconds links together as outfan, and the colelctor electrode of the first transistor is connected to power supply, and the colelctor electrode of transistor seconds is connected to former limit earth potential;
Frequency generating circuit, comprises phaselocked loop, and it is connected to crystal oscillator; Low pass filter, is connected to the outfan of phaselocked loop; Voltage controlled oscillator, is connected to low pass filter outfan, and its outfan is leaded up to M doubler and fed back to phaselocked loop, and another road exports amplifier to, and the outfan of amplifier is connected to the control end of described switch driver;
Diode, its anode is connected to transformer secondary winding first end, and its negative electrode is connected to DC filter;
Described DC filter comprises inducer and capacitor, and one end of inducer is connected to the negative electrode of described diode, and the common port of inducer and capacitor is connected to the first emission electrode, and the other end of capacitor is connected to the second emission electrode and secondary earth potential;
Described first emission electrode is copper sheet;
Described second emission electrode is copper sheet, is connected to described secondary earth potential.
Alternatively, described switching tube is mosfet transistor.
Alternatively, described crystal oscillator frequency of oscillation is 200MHz.
Alternatively, described M doubler is 3 doubler.
The beneficial effects of the utility model are:
Effectively stimulated affected part nerve by voltage, operating process is simple and convenient, for handicapped patient provides convenience; Be system power supply by set of cells, achieve the portability of system, the battery that in short circuit set of cells, electricity exhausts or damages, extend the service time of set of cells.
Accompanying drawing explanation
In order to be illustrated more clearly in this utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the circuit diagram of a kind of portable nerve stimulating apparatus of this utility model;
Fig. 2 is the circuit diagram of power supply of the present utility model.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, be clearly and completely described the technical scheme in this utility model embodiment, obviously, described embodiment is only this utility model part embodiment, instead of whole embodiments.Based on the embodiment in this utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of this utility model protection.
As shown in Figure 1, a kind of portable nerve stimulating apparatus of the present utility model, comprise: power supply 1, voltage generation circuit 10, the input of voltage generation circuit 10 is connected to power supply 1, and the outfan of voltage generation circuit 10 is connected respectively to the first emission electrode 80 and the second emission electrode 90 by DC filter 17; Described first emission electrode 80 is copper sheet; Described second emission electrode 90 is copper sheet.
DC voltage within human body tolerance range and harmless is applied to the first emission electrode 80 and the second emission electrode 90 by voltage generation circuit 10, first emission electrode 80 and the second emission electrode 90 are fixed on human body by clip or band etc. and stimulate district, the spacing of two emission electrodes controls within 20 centimetres, by DC voltage, nerve is stimulated, keep neural sensitivity.
Particularly, described voltage generation circuit 10 comprises: transformator 11, comprise former limit winding and vice-side winding, former limit winding comprises first end and the second end, vice-side winding comprises first end and the second end, former limit winding first end is connected to described power supply 1, and vice-side winding second end is connected to secondary earth potential, and former limit winding first end and vice-side winding second end are Same Name of Ends; Switching tube 12, its source electrode is connected to transformer primary side winding second end, and its drain electrode is connected to former limit earth potential, and its grid is connected to switch driver 13; Switch driver 13, comprise the first transistor and transistor seconds, the first transistor is NPN transistor, transistor seconds is PNP transistor, the base stage of the first transistor and transistor seconds links together as control end, the emitter stage of the first transistor and transistor seconds links together as outfan, and the colelctor electrode of the first transistor is connected to power supply 1, and the colelctor electrode of transistor seconds is connected to former limit earth potential; Frequency generating circuit 30, comprises phaselocked loop 31, and it is connected to crystal oscillator 100; Low pass filter 32, is connected to the outfan of phaselocked loop 31; Voltage controlled oscillator 33, be connected to low pass filter 32 outfan, its outfan is leaded up to M doubler 34 and is fed back to phaselocked loop 31, and another road exports amplifier 35 to, the outfan output frequency signal f1 of amplifier 35 and be connected to the control end of described switch driver 13.
Frequency generating circuit 30 produces pulse signal, turning on and off of gauge tap pipe 12, and then control voltage produces the size of circuit 10 output voltage, ensures that electric pressure is within human body tolerance range.
Diode 14, its anode is connected to transformer secondary winding first end, and its negative electrode is connected to DC filter 17.Described DC filter 17 comprises inducer 15 and capacitor 16, one end of inducer 15 is connected to the negative electrode of described diode 14, inducer 15 is connected to the first emission electrode 80 with the common port of capacitor 16, and the other end of capacitor 16 is connected to the second emission electrode 90 and secondary earth potential.
As shown in Figure 2, power supply 1 is set of cells 117, and its voltage is 10-20V, set of cells comprise battery that n is connected in series (211,221 ..., 2n1), wherein n is natural number; N shorting switch being connected in parallel with respective battery (212,222 ..., 2n2); And with n short circuit control circuit of respective battery coupled in parallel (213,223 ..., 2n3), described each short circuit control circuit receives respective battery both end voltage, and provide control signal according to respective battery both end voltage, in order to corresponding shorting switch is turned on or off, thus when respective battery both end voltage is very low by this battery short circuit.Short circuit control circuit in Fig. 2 (213,223 ..., 2n3) structure is identical, short circuit control circuit 213 comprises: comparator 2101, has in-phase input end, inverting input and outfan; Biasing circuit 2102, has anode and negative terminal, and its anode is coupled to the in-phase input end of comparator 2101; Wherein battery 211 and shorting switch 212 coupled in parallel are between the in-phase input end and the negative terminal of biasing circuit 102 of comparator 2101, and described shorting switch 212 comprises the control end being coupled to described comparator 2101 outfan.When described battery voltage short circuit control circuit 213 runs, comparator 2101 compares the voltage that its battery 211 both end voltage and biasing circuit 2102 provide.When power depletion or the damage of battery 211, during the voltage levvl that its both end voltage is provided lower than biasing circuit 2102, comparator 2101, by shorting switch 212 conducting, with battery 211, thus minimizes the resistance of this battery path.Described shorting switch can be the full-control type such as audion, mosfet transistor transistor.
In this utility model, the no-load voltage ratio of transformator is 1: 1, realizes former secondary electrical isolation.
Preferably, described switching tube 12 is mosfet transistor.
Preferably, the frequency of oscillation of described crystal oscillator 100 is 200MHz.Correspondingly, described M doubler 34 is 3 doubler.
Portable nerve stimulating apparatus of the present utility model, effectively stimulated affected part nerve by voltage, operating process is simple and convenient, for handicapped patient provides convenience; Be system power supply by set of cells, achieve the portability of system, the battery that in short circuit set of cells, electricity exhausts or damages, extend the service time of set of cells.
The foregoing is only preferred embodiment of the present utility model; not in order to limit this utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (4)
1. a portable nerve stimulating apparatus, it is characterized in that, comprise: power supply and voltage generation circuit, the input of voltage generation circuit is connected to power supply, and the outfan of voltage generation circuit is connected respectively to the first emission electrode and the second emission electrode by DC filter;
Described power supply is set of cells, and its voltage is 10-20V, and described set of cells comprises n the battery be connected in series; N the shorting switch be connected in parallel with respective battery; And with n short circuit control circuit of respective battery coupled in parallel, wherein said each short circuit control circuit receives respective battery both end voltage, and provides control signal according to respective battery both end voltage, in order to be turned on or off by corresponding shorting switch; Described short circuit control circuit comprises: comparator, has in-phase input end, inverting input and outfan; Biasing circuit, has anode and negative terminal, and its anode is coupled to the in-phase input end of comparator; Wherein said battery and shorting switch coupled in parallel are between the in-phase input end and the negative terminal of biasing circuit of comparator, and described shorting switch comprises the control end being coupled to described comparator output terminal; Described shorting switch is mosfet transistor;
Described voltage generation circuit comprises:
Transformator, comprise former limit winding and vice-side winding, former limit winding comprises first end and the second end, vice-side winding comprises first end and the second end, former limit winding first end is connected to described power supply, vice-side winding second end is connected to secondary earth potential, and former limit winding first end and vice-side winding second end are Same Name of Ends;
Switching tube, its source electrode is connected to transformer primary side winding second end, and its drain electrode is connected to former limit earth potential, and its grid is connected to switch driver;
Switch driver, comprise the first transistor and transistor seconds, the first transistor is NPN transistor, transistor seconds is PNP transistor, the base stage of the first transistor and transistor seconds links together as control end, the emitter stage of the first transistor and transistor seconds links together as outfan, and the colelctor electrode of the first transistor is connected to power supply, and the colelctor electrode of transistor seconds is connected to former limit earth potential;
Frequency generating circuit, comprises phaselocked loop, and it is connected to crystal oscillator; Low pass filter, is connected to the outfan of phaselocked loop; Voltage controlled oscillator, is connected to low pass filter outfan, and its outfan is leaded up to M doubler and fed back to phaselocked loop, and another road exports amplifier to, and the outfan of amplifier is connected to the control end of described switch driver;
Diode, its anode is connected to transformer secondary winding first end, and its negative electrode is connected to DC filter;
Described DC filter comprises inducer and capacitor, and one end of inducer is connected to the negative electrode of described diode, and the common port of inducer and capacitor is connected to the first emission electrode, and the other end of capacitor is connected to the second emission electrode and secondary earth potential;
Described first emission electrode is copper sheet;
Described second emission electrode is copper sheet, is connected to described secondary earth potential.
2. portable nerve stimulating apparatus as claimed in claim 1, it is characterized in that, described switching tube is mosfet transistor.
3. portable nerve stimulating apparatus as claimed in claim 1, it is characterized in that, described crystal oscillator frequency of oscillation is 200MHz.
4. portable nerve stimulating apparatus as claimed in claim 3, it is characterized in that, described M doubler is 3 doubler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420210005.2U CN204106847U (en) | 2014-04-18 | 2014-04-18 | Portable nerve stimulating apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420210005.2U CN204106847U (en) | 2014-04-18 | 2014-04-18 | Portable nerve stimulating apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204106847U true CN204106847U (en) | 2015-01-21 |
Family
ID=52324212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420210005.2U Expired - Fee Related CN204106847U (en) | 2014-04-18 | 2014-04-18 | Portable nerve stimulating apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204106847U (en) |
-
2014
- 2014-04-18 CN CN201420210005.2U patent/CN204106847U/en not_active Expired - Fee Related
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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: 20150121 Termination date: 20150418 |
|
| EXPY | Termination of patent right or utility model |