CN206660304U - Impulse therapy device - Google Patents

Abstract

Embodiment of the present utility model discloses a kind of impulse therapy device, including electric pulse generator, power-supply filter, bandstop filter, output cord, electrode, the power-supply filter is arranged at the input port of electric pulse generator, the stop-band filter is arranged at the output port of electric pulse generator, the electrode is connected to stop-band filter by output cord, and the impulse therapy device during this implementation is new compatible with magnetic resonance system can use.

Description

Impulse therapy device

【Technical field】

It the utility model is related to a kind of medicine equipment, and in particular to pulse therapy that can be compatible with magnetic resonance scanning system fills Put.

【Background technology】

Acupuncture and moxibustion therapy is the rarity of Chinese medical, has long history and is widely used, to the Chinese nation National health serves favourable facilitation.The effect of acupuncture treatment of disease, is causing widely in worldwide Concern, at home acupuncture are widely used in various disease treatments.Effective means of the needle-punching method as treatment brain diseases, especially It is to be applied to treatment cerebral infarction, Parkinson's, epilepsy, neural class disease, mental disorder etc. to have more definite treatment Effect.Substantial amounts of Acupuncture Clinical observation and experimental study show that acupuncture human acupoint plays an important role to treatment brain diseases.Acupuncture Effect can change the process and result of brain metabolism, and cause the change of the characteristic metabolic thing of brain specific region.

With the development of modern science and technology, it is continuously created to come with the modality that acupuncture is used in combination, makes traditional Chinese medicine acupuncture technology is further enriched and perfect, for example, impulse therapy device, a kind of by acupuncture and moxibustion therapy and physical treatment The new technology that blends, new product, relatively broad use has been obtained in disease treatment, beauty-care physiotherapy etc..

With the progress of modern science, Chinese medicine acupuncture is theoretical, there is further abundant and perfect possibility.Particularly function Magnetic resonance (fMRI) and the further clinical practice of Magnetic Resonance Spectrum (MRS) provide for research of the acupuncture for the human body mechanism of action One instrument that is directly perceived and quantifying.

Such as metaboilic level change in brain specific function area is a complicated multifactor process, is become by blood oxygen merely Change situation is not enough to assess improvement and specificity of the acupuncture to brain function, with the development of science and technology, MRS turns into brain domain The important analysis investigative technique in metabolism field.Acupuncture correlation acupuncture point has regiospecificity to brain fMRI images, is total to using magnetic Vibration wave composes the quantitative analysis that can carry out correlative metabolites change.In view of the specificity of crowd, the research need to carry out full-page proof This experiment, acupuncture stimulation is carried out to human acupoint in Magnetic Resonance (MR) Room/ MRI Room, and scan its brain specific regions, obtain wherein phase Close delta data of the metabolin in Magnetic Resonance Spectrum.

However, existing impulse therapy device and Magnetic Resonance Spectrum are put together work, interference phenomenon can be produced, is influenceed The normal use of the two.For example, impulse therapy device, which in magnetic resonance imaging, can launch electric impulse signal, is used for clinical treatment Or other miscellaneous functions, but the spike signal launched of existing impulse therapy device is all broadband signal, the letter Number can some fall into magnetic resonance reception frequency band range, so as to can to magnetic resonance imaging produce radio frequency artifact；It is in addition, general Electric pulse generator also because the factor cisco unity malfunction such as magnetic is in magnetic resonance environment.

【Utility model content】

Technical problem to be solved in the utility model is to provide a kind of impulse therapy device, and it can be with magnetic resonance imaging system System is compatible.

The utility model is to solve the technical scheme that uses of above-mentioned technical problem：A kind of impulse therapy device, including Electric pulse generator, power-supply filter, bandstop filter, output cord, electrode, the power-supply filter are arranged at electric pulse hair At the input port of raw device, the stop-band filter is arranged at the output port of electric pulse generator, and the electrode passes through defeated Go out cable and be connected to stop-band filter.

Optionally, the output cord is coaxial radio-frequency cable, including cored wire and screen layer, the cored wire are positive pole, screen It is negative pole to cover layer.

Optionally, in addition to the common-mode signal suppressor that is configured in output cord.

Optionally, the electric pulse generator also includes electromagnetic shielding shell.

Optionally, the power-supply filter, stop-band filter are by the electromagnetic shielding shell shade.

Optionally, the electromagnetic shielding shell is made of non-magnetic material.

Optionally, the non-magnetic material is one of carbon fiber, aluminium, copper or 304 stainless steels.

Optionally, the power-supply filter is low pass filter.

Optionally, the quantity of the output cord is one or several.

Optionally, in addition to timer, for controlling electric pulse generator to produce the time of pulse.

The utility model contrast prior art has following beneficial effect：The utility model embodiment is by sending out electric pulse The input power of raw device, output pulse are filtered processing, obtain more pure pulse signal；Meanwhile electric pulse is occurred Device carries out electromagnetic shielding processing；Measure more than, can be such that electric pulse generator is not produced at work with magnetic resonance system The phenomenon interfered, both have preferably compatibility.

【Brief description of the drawings】

Fig. 1 is the schematic diagram of the impulse therapy device of the utility model embodiment；

Fig. 2 is that the impulse therapy device of the utility model embodiment is connected to the schematic diagram of power supply；

Fig. 3 is the output cord schematic diagram of the impulse therapy device of the utility model embodiment；

Fig. 4 is the bandstop filter performance schematic diagram of the utility model embodiment；

Fig. 5 is the power-supply filter performance schematic diagram of the utility model embodiment.

【Embodiment】

The utility model will be further described with reference to the accompanying drawings and examples.

As Figure 1-5, one embodiment of impulse therapy device of the present utility model includes：With electromagnetic shielding shell 1 Electric pulse generator, power-supply filter 2, bandstop filter 3, transmission cable 4.Electric pulse generator revolves including output mode Button, can according to clinic need output mode knob is placed in different gears, obtain transmitting different cycles, different voltage amplitudes The spike of degree or other impulse waveforms.Bandstop filter 3 is used to filter out the interference signal for producing magnetic resonance image disruption It is general from the band resistance of customization or low pass filter without influenceing electric pulse stimulation effect.Output cord (pulse transmission line cable) 4, coaxial radio-frequency cable typically is selected, the loss of signal can be reduced, while is easy to configuration (the making, installation) in output cord 4 Common mode interference signal suppressor (trap) 5；The cored wire 41 of output cord 4 is positive pole, and screen layer 42 is negative pole.A piece coaxial cable It can realize that both positive and negative polarity exports, form electrical circuit.Further, it is connected with electrode 6 in the end of output cord 4.

According to the needs of application, in magnetic resonance scan sequences, electric impulse signal is sent by electric pulse generator, passes through band Hinder wave filter and filtering is entered to magnetic resonance interference signal, obtain the electric impulse signal of " pure " for MR, then by being connected to The electrode (trial boring electrode or physiotherapy adhesive electrode) 6 of transmission cable contacts with human body, in human body surface or is internally formed electricity The loop of signal, realize the electric pulse stimulation treatment function that electric impulse signal is stimulated human body.

In order to be worked under strong magnetic field circumstance, electric pulse generator is internally, it is necessary to from without magnetic/weak on components selection Magnetic component.For example, in one embodiment, electric pulse generator includes by the timer of computer system control to be used for Electric pulse generator is controlled to produce the time of pulse.

Contain multiple digit chips inside electric pulse generator, these digit chips can produce very wide band letter when working Number.The influential signal of MR imagings is fallen into MR imaging frequency band ranges if these broadband signals wherein have, can be to MR Imaging produces interference, causes image artifacts.Meanwhile can launch high-power radiofrequency signal during magnetic resonance work, these high powers If radio frequency does not use isolation to electric pulse generator, there is the risk of damage to electric pulse generator internal circuit.

In order to solve the mutual electromagnetic compatibility issue of electric pulse generator and magnetic resonance system, it is necessary first to which electric pulse is sent out The shell of raw device uses shielding casing 1, and should be no magnetic conductor material, such as selects carbon fiber, aluminium, copper or 304 stainless steels Deng.

Electric pulse generator needs to provide electric energy by power supply 7, such as can be by inputting cable 9 and power supply 7 connections.Power supply can be AC power or dc source；In the present embodiment, by a selecting switch 8, two are can be achieved The switching of the various forms of power supplys of kind.To avoid power supply from producing to the interference signal of MR imagings, it is necessary to by power supply High-frequency signal filter out.Therefore, power-supply filter 2 can be set at the input port 12 of electric pulse generator, here using electricity Source filter 2 is low pass filter；In addition, it can also use dry cell power supply.The first end of input cable 9 is connected to power filter Device 2, the other end of input cable 9 are connected to power supply.The performance schematic diagram of power-supply filter 2 is as shown in figure 5, low frequency signal Can be by the way that high-frequency signal is blocked, so as to reduce or avoid in power supply high frequency signal input electric pulse generator.

The output port 13 of electric pulse generator needs to increase bandstop filter 3, can prevent in electric pulse generator Spurious signal enters in MR bandwidth, the signal output without influenceing other frequency ranges.Performance schematic diagram such as Fig. 4 institutes of bandstop filter Show, the signal within stopband can not be by the way that the signal outside stopband can be normal through wave filter, so that electric pulse generator The pulse of " pure " of output.

The high-power RF signal that magnetic resonance is launched when working, in order to prevent the radiofrequency signal from passing through signal transmission cable Its normal work is disturbed into electric pulse generator, and also to prevent from being coupled to radiofrequency signal entrance on signal transmission cable Human body, increase LC bandstop filters (trap) on signal transmission cable, to suppress the high-power RF that cable top layer is coupled to Signal, output cord or electrode is avoided to produce fever phenomenon, treated object of burning.

Although the utility model is disclosed as above with preferred embodiment, so it is not limited to the utility model, any Those skilled in the art, do not departing from spirit and scope of the present utility model, when a little modification and perfect, therefore this can be made The protection domain of utility model is worked as to be defined by what claims were defined.

Claims (10)

1. a kind of impulse therapy device, it is characterised in that including electric pulse generator, power-supply filter, bandstop filter, output Cable, electrode, the power-supply filter are arranged at the input port of electric pulse generator, and the bandstop filter is arranged at electricity At the output port of impulse generator, the electrode is connected to bandstop filter by output cord.

2. impulse therapy device according to claim 1, it is characterised in that the output cord is coaxial radio-frequency cable, Including cored wire and screen layer, the cored wire is positive pole, and screen layer is negative pole.

3. impulse therapy device according to claim 1, it is characterised in that also include the common mode being configured in output cord Signal suppressor.

4. impulse therapy device according to claim 1, it is characterised in that the electric pulse generator also includes electromagnetic screen Cover housing.

5. impulse therapy device according to claim 4, it is characterised in that the power-supply filter, bandstop filter quilt The electromagnetic shielding shell shade.

6. impulse therapy device according to claim 4, it is characterised in that the electromagnetic shielding shell non-magnetic material system Into.

7. impulse therapy device according to claim 6, it is characterised in that the non-magnetic material be carbon fiber, aluminium, copper or One of 304 stainless steels.

8. impulse therapy device according to claim 1, it is characterised in that the power-supply filter is low pass filter.

9. impulse therapy device according to claim 1, it is characterised in that the quantity of the output cord is one or number Bar.

10. impulse therapy device according to claim 1, it is characterised in that also including timer, for controlling electric pulse Generator produces the time of pulse.