CN1141994C - Non-intrusive electromagnetic field method and equipment for treating osteoporosis - Google Patents

Abstract

The present invention discloses a method for treating osteoporosis by non-intrusive type electromagnetic fields, and a device. The method comprises the following steps: an electromagnetic field generating device is provided; the electromagnetic field generating device is arranged near an area which is densely distributed with sensitivity sensitive parts of human bodies; therapy electromagnetic fields are generated by the electromagnetic field generating device and penetrated through the area. The device comprises a therapy coil composed of a plurality of independent windings which are ranged in parallel and connected orderly, and identical terminals are positioned at the same side. When currents are switched on, electromagnetic fields generated by each winding are distributed in parallel so as to generate basically uniform electromagnetic fields in the peripheral space of the therapy coil.

Description

Non-intrusive electromagnetic field is treated osteoporotic device

Technical field

The present invention relates to a kind of device that uses electromagnetic field osteoporosis to be carried out non-invasively treating.

Background technology

Osteoporosis is a kind of multiple disease, it is characterized in that the bone amount reduces, the osseous tissue fine structure is impaired, causes skeleton fragility to increase, and fracture risk raises.Sufferers of osteoporosis face can be fractured by slight external force, i.e. the non-injury fracture.

Treating one of osteoporotic method is Drug therapy, and medicine commonly used comprises estrogen, calcitonin, parathyroid hormone, diphosphonate, fluoride etc.These medicines are not only expensive, and long-term efficacy is not good enough, and have side effect bar none.For example, at present medical circle is praised highly controversies in hormone replacement in the elderly the most, and still, having an appointment after women patient takes for a long time 30% cancer sample pathological changes such as endometrial thickness occurred.Up to now, still there is not osteoporotic medicine of being used for the treatment of of a kind of safety, produce effects.

Another kind of Therapeutic Method is to apply electromagnetic field to human body, thereby reaches the osteoporotic effect of treatment.Since the 1950's, people have carried out extensive studies to electromagnetic field to the mechanism of action of skeleton.By 1989, Bassett systematically sums up the achievement in research of this aspect, affirmed the therapeutic effect of electromagnetic field, the preliminary mechanism that has proposed the behavior of electromagnetic field effects bone tissue restoration theoretically, be that electromagnetic field can change living tissue electricity and/or chemical environment, influence and revise tissue growth, repair and keep behavior.

The mode that applies electromagnetic field to human body can be divided into compound three kinds of direct current, interchange and alternating current-direct currents by the character of adding electromagnetic field.If according to the method that applies then can be divided into two kinds of intrusive mood and non-intrusion types.The intrusive mood method is to insert electrode in human body, applies electric field on electrode.This method not only needs complicated operation, and there is the danger of infection in the patient.The non-intrusion type method then is to import electric field and electric current with device outside in tissue.Compare with the intrusive mood method, the non-intrusion type method is simple, and very reliable, is accepted by the patient easily.

The non-intrusion type therapy is divided into resistance-type, condenser type and three kinds of methods of inductance type again.First method is a resistance-type, and this technology is that pair of electrodes is connected patient's skin surface by conducting resinl, applies voltage on electrode, thereby produces electric current at organization internal.This method requires between electrode and the skin good electrical contact to be arranged, and must often change conducting resinl.Second method is a condenser type, is about to the parallel both sides that relatively are placed on the therapentic part of wanting of pair of electrodes, and electrode applies electric field, thereby produce electric current in tissue with patient's skin insulation on electrode.But the defective of this method is to have the air gap between two electrodes, causes a very big capacitive reactance when frequency is very low, and the electromotive force overwhelming majority that adds is fallen on the air gap, and is not suitable for therapeutic purposes equally owing to the electromagnetism kelvin effect under the high frequency situations.In addition, the very big capacitive reactance of this between patient skin and the electrode changes with distance between the two, is difficult for accurately control.The third method is an inductance type, promptly allows alternating current through a field coil, and electric current produces alternating magnetic field at the coil neutralization surrounding space, and this action of a magnetic field produces electric field and electric current in tissue in tissue.

U.S. Patent No. 5267939 discloses two kinds of non-intruding inductance type osteoporosis therapy devices.A kind of is the binder pocket, can be used for the topical therapeutic of the isometric bony site of shank.Another kind is the large scale solenoid type, is used for systemic treatment.The binder type that this patent proposed is only applicable to topical therapeutic, because two electric magnet are parallel staggered relatively, Approximate Equivalent is in Helmholtz coil, and the magnetic line of force is limited in two zones between the relative magnetic pole strength.Though and solenoid type can be used for whole body therapeutic, its magnetic line of force is to distribute along the human body y direction, can not produce the nagative potential that helps the osseous tissue growth.In addition, the head part also is in the magnetic field in the treatment, has the danger of sustain damage.Simultaneously, very heavy on this project organization, manufacturing cost is high.

Chinese patent application prospectus CN 1100659A proposition is a kind of to put on the large-scale magnet therapeutic apparatus of human body with magnetic field.This device comprises that one is hung in the lid of human body top, and one is supported the support that described lid makes it to be in level.Have a plurality of solenoids that are arranged in array format in the lid.After powering up, the magnetic field that all solenoids produce is all towards a direction, thereby the generation large tracts of land vertically penetrates the magnetic field of human body.This installs not only bulky complex, cost height, and magnetic field also acts on simultaneously people's head, exist to human body is hurtful may.

As seen, there is serious prejudice in prior art on the method that realizes systemic treatment, thinks mistakenly to have only to allow treatment magnetic field radiation whole body just can carry out systemic treatment.And not only heavy, complicated based on the designed device that is used for systemic treatment of this wrong understanding, cost is high, and be easy to people's head is produced harmful effect.

Summary of the invention

The purpose of this invention is to provide the method and apparatus that a kind of non-intrusive electromagnetic field treatment sclerotin is dredged, can improve therapeutic effect greatly, just can reach the systemic treatment effect thereby can not need carry out general irradiation according to this method and apparatus.

According to an aspect of the present invention, provide a kind of non-intrusive electromagnetic field to treat osteoporotic method, comprised step: an electromagnetic field generator is provided; Described electromagnetic field generator is arranged on the intensive zone of the sharp site distribution of susceptibility of close human body to be treated; Produce an electromagnetic field that is used for the treatment of by described electromagnetic field generator, make this electromagnetic field pass described zone,, improve the QI-blood circulation of whole body, regulate physiological function, with the treatment osteoporosis by stimulating the position of the susceptibility acumen here.

According to another aspect of the present invention, provide a kind of non-intrusive electromagnetic field to treat osteoporotic device, comprise the coil that is used to produce the treatment electromagnetic field, described treatment electromagnetic field coil is made up of many groups independent winding, be rotatably connected to together by turning cylinder successively, it is characterized in that, each winding is arranged in parallel, and be parallel to turning cylinder, end of the same name is positioned at the same side, when passing to electric current, and the parallel distribution in magnetic field that each winding produces, stack mutually produces basic uniform electric magnetic field at treatment coil surrounding space.

According to method and apparatus of the present invention, electromagnetic field puts in the human body and concentrates the zone that distributes such as meridians such as conception vessel, governor vessel, the sharp position of acupuncture point isosensitive, not only can increase bone mineral content, improve bone density, and, can also significantly improve the microstructure of bone, improve its mechanical strength.Specifically, can suppress the trend that bone trabecula is changed in quality exactly, suppress promptly that bone trabecula attenuates, the trend of attenuation, gap enlargement, by generating new callus, the bone trabecula of fracture is reconnected, improve bone trabecula fracture and discontinuous feature, suppress and reverse osteoporotic trend.Thereby compared with prior art, therapeutic effect improves greatly, needn't carry out general irradiation and can reach the systemic treatment effect.Simultaneously, also avoided irradiation, greatly improved its safety and reliability the head part.In addition, compared with prior art, installation cost of the present invention is low, power consumptive province, easy to use.

Description of drawings

The present invention is described in further detail below in conjunction with drawings and Examples.

Fig. 1 is the theory diagram of electromagnetic field treatment osteoporosis device.

Fig. 2 is the population structure sketch map according to treatment coil of the present invention.

Fig. 3 is the circuit connection diagram according to treatment coil of the present invention as shown in Figure 2.

Fig. 4 is the installation diagram according to treatment coil of the present invention.

Fig. 5 is according to treatment distribution of magnetic field sketch map of the present invention.

Fig. 6 is the sketch map according to the electronic circuit of an embodiment of therapy equipment of the present invention.

Fig. 7 is the electronic-circuit diagram according to the power amplifier part of an embodiment of therapy equipment of the present invention.

Fig. 8 is the amplitude frequency spectrum figure according to the output waveform of the power amplifier of an embodiment of therapy equipment of the present invention as shown in Figure 7.

The specific embodiment

At first provide the mechanism of action of electromagnetic field and organism below from microcosmic.We know that electromagnetic field applies Lorentz force to charged particle: $\stackrel{\→}{F}=q\stackrel{\→}{E}+q(\stackrel{\→}{v}\×\stackrel{\→}{B})$

Under the effect of Lorentz force, when below the frequency of electromagnetic field and intensity satisfy, concerning, can change such as Ca ²⁺, Mg ²⁺, Na ⁺, F ^-, Cl ^-Isoionic passage and activity change itself and the probability that combines of enzyme, thereby have influence on ionic contrary concentration transportation:

f _c/ B=q/ (2 π m) wherein, f _cBe field frequency, B is a magnetic field intensity, and q is a charge-mass ratio, and m is a mass particle.

High in the body fluid outside the concentration ratio born of the same parents of calcium ion in osteoblast, say the high level state that is in from energy point of view.Consider the potential barrier of cell membrane, can think that the calcium ion in the born of the same parents is in the metastable state state.Under the normal condition, transporting of calcium ion should be from high concentration one side direction low concentration one side.The contrary concentration transportation of calcium ion, promptly from stable state to metastable transportation, need overcome the cell membrane potential barrier.The electromagnetic field that adds by the energy that overcomes energy barrier is provided for calcium ion, has changed the direction that transports of calcium ion just, makes it that a side is transported to a side in the born of the same parents outside born of the same parents, thereby increases the content of calcium ion in the osteoblast, improves bone density.This energy is not directly to be provided by electromagnetic field, but provides by the ATP hydrolysis, and electromagnetic field has only played the effect of quickening the ATP hydrolysis.

Electromagnetic field osteoporosis therapy method and apparatus of the prior art just is being based on above understanding design.

China's traditional medicine thinks, electromagnetic field effect is in the position of collaterals of human, acupuncture point isosensitive acumen, can dredging the meridian, make the QI and blood mediation, and blood circulation promoting and blood stasis dispelling is eliminated qi depression to blood stasis and water-damp retention.Current research shows: the ecological position of meridian point is based on connective tissue, and related blood vessel, plexus nervorum and lymphatic vessel etc. wherein are interwoven and have certain physiological structure of complicated comprehensive physiological function.In the corresponding deep layer connective tissue structure of acupuncture point, be enriched with its hetero-organization high tens of times even the hundreds of times of the content of element ion, especially calcium ions such as calcium, phosphorus, potassium, ferrum, zinc, manganese, chromium than non-acupuncture point.And second message,second messenger's material that calcium ion is a body weight for humans to be wanted is being brought into play important role in the human physiological activity.This is theoretical consistent with doctor trained in Western medicine to a certain extent just in time.The doctor trained in Western medicine theory thinks that calcium ion is in middle cardiac status in mediation electromagnetic field biological effect, and the intracellular calcium ion vibration plays important regulation for electromagnetic stimulation cellular gene expression, protein synthesis, cell electric conductivity and collagen secretion.

The present invention makes this electromagnetic field pass the position of meridian point isosensitive acumens such as trunk part conception vessel, governor vessel just from above understanding, improves QI-blood circulation, regulates physiological function, thereby reaches the osteoporotic purpose of treatment.Like this, not only can be as prior art, improve bone mineral content and bone density, the more important thing is, can also improve the microstructure of bone, promptly by forming callus at the little fracture of bone trabecula fracture location, recover normal form of bone trabecula and structure, improve its mechanical performance index, from checking in essence and reversing osteoporotic disease, reduce the fracture incidence rate that osteoporotic fracture incidence rate, particularly lumbar vertebra and Ward trigonum etc. are located.

Have so-called " memory effect " in the bone remodeling process, promptly calcium, phosphonium ion by osteoclast " dig " walk after, stay the sky lacuna, and osteoblast will be attempted fresh calcium, phosphonium ion are transported to this sky lacuna.But, when osteoblast is active not enough, being difficult to overcome the effect of energy barrier, the empty lacuna place that makes calcium, phosphonium ion not to arrive to dig out causes brokenly calcium behind the bone, phosphorus in time not to replenish, and accumulates over a long period and just causes osteoporosis.The present invention exactly can overcome this crux, thereby suppresses and the reverse osteoporosis.

Describe electromagnetic field treatment osteoporosis device of the present invention below in detail.

Fig. 1 is the theory diagram of device of the present invention.Single-chip microcomputer 10 is by the digital signal of RS232 interface acceptance from host computer 20, deliver to D/A converter 30 after treatment, pass through the analogue signal isolating amplifier circuit of forming by the two-stage photoelectric coupled device 40 again, send into the inverting input of integrated power amplifier OPA52150.The power signal of power amplifier 50 outputs is delivered to treatment coil 60 through coaxial transmission line.When coil 60 passed to electric current, the space produced magnetic field around.

In order accurately to control treatment magnetic field, in treatment coil 60, be placed with magnetic field sensor 70 (for clarity sake magnetic field sensor being plotted in outside the treatment coil among the figure).In the present embodiment, use Hall plate, obviously, also can adopt the magnetic field sensor of other types as pick off.Pass to the electric current of 5mA in the magnetic field sensor 70, under the action of a magnetic field, the highest voltage signal that produces 16mV on the Hall plate.This signal is delivered to the measuring amplifier of being made up of three LF356 80, and after two-stage was amplified, amplitude can reach 3.8V.This signal is converted to digital signal through A/D converter ADC080990, delivers to single-chip microcomputer 10 and controls in real time, reaches the intensity that sets to guarantee the total magnetic field.

As shown in Figure 2, treatment coil 60 according to the present invention is linked together to L7 by 7 winding L nearly 1 and constitutes, thereby forms a treatment plane, to form relatively uniform electric magnetic field in large tracts of land.The number of winding obviously also can not be 7.Each winding 1500 circles of having an appointment are wound on the special skeleton 13 with the copper enamel-covered wire 9 of 0.72mm and form (referring to Fig. 4).Be to strengthen magnetic field, magnetic line of force dense arrangement is distributed, skeleton 13 hollow spaces are placed the silicon steel sheet 11 of high magnetic permeability, and the gross thickness of silicon steel sheet can be designed to be full of just the hollow space of whole winding, hold concurrently and have strengthened the structural strength of coil.

Electrically connect as parallel form between each winding L 1 to L7, as shown in Figure 3.

Mechanical connection between the adjacent winding as shown in Figure 4.Insulated rivet is passed through respectively 10 fixedly connected 3 in two ends at skeleton 13.In order not influence the distribution of the magnetic line of force, brace 3 preferably adopts non-magnet material.By turning cylinder 6 the corresponding brace 3 ' of brace 3 and adjacent winding is combined, two adjacent windings can be done ± 45 ° of rotations.Can make each winding applying human body therapy position like this, improve therapeutic effect.Turning cylinder is supported in the damping pressure bearing 8, it can bear Y-axis to pressure.By adjusting the thrust of nut 1, can adjust the resistance of damping pressure bearing 8, make resistance between the adjacent winding meet the requirement of particular treatment purpose.

In order to realize between the adjacent winding being electrically connected reliably, at the fixing electronic circuit board 12 of an end of skeleton 13, a not-go-end of the copper enamel-covered wire 9 of coiling winding is soldered to electronic circuit board 12.At the two ends of electronic circuit board 12 welding flexible circuit conductor, be used for and being electrically connected of adjacent winding.

Each winding L 1 to L7 in the manner described above successively machinery and be electrically connected.Its shell 5 adopts two plastics caps up and down, and they are located by a pair of lock pin M, the N that is concaveconvex shape respectively, and are screwed together.In the present embodiment, the length of shell 5 is 180mm, and wide is 110mm, and thickness is 25.6mm.

Be fixed with current processing plate 17 in the inboard of winding shell 5, fixing thereon for example is the magnetic field sensor 70 of Hall plate, and the two constitutes feedback circuit jointly, is used to monitor magnetic field.Lead 14 is connected between electronic circuit board 12 and the current processing plate 17, is used for to current processing plate 17 and magnetic field sensor 16 power supplies.

In loop construction of the present invention, mechanically closely accurately cooperate for making each parts, adopted a series of particular design.The length between A on the turning cylinder 6 and the B two place's shaft shoulders and the length dimension of skeleton 13 adapt, and have guaranteed the concordance of each winding size, simultaneously, make the axial resistance of adjusting on the damping pressure bearing 8 become convenient stable.Shell 5 inboards have locating piece C, D, G, H, and winding is accurately located in the horizontal.Locating piece E, F then make winding accurately locate in the vertical.Locating piece K plays the role of positioning to winding equally with the groove fit on the brace 3.

When therapy equipment was worked, coil passed to the electric current that is up to 3.0A.The meansigma methods of this electric current is non-vanishing, thereby produces direct current and exchange resultant field.The transient magnetic field that each winding produced distributes as shown in Figure 5, like this, can make treatment magnetic field along the densely distributed part in meridians, acupuncture point that is horizontally through human body.

Fig. 6 has provided the sketch map according to the electronic circuit of an embodiment of therapy equipment of the present invention.Layout mainly comprises single-chip microcomputer intelligence arbitrarily signal generating device, driving and treatment coiler part, sensing and magnetic field detection part.Its each ingredient and operation principle are as follows:

Single-chip microcomputer intelligence arbitrarily signal generating device is core with the single-chip microcomputer, by the 89C51 single-chip microcomputer, and the 74LS373 latch, the 27C256EPROM memorizer, 8254 intervalometers, 7,4LS,377 eight D flip-flops, the two tetrad enumerators of 74LS393, the DAC0832 D/A, the ADC0809 A/D converter, 74LS138 decoder, MAX232 communication interface chip, the 74LS74 double D trigger, devices such as 74HC14 phase inverter are formed.Wherein U5 (27C256EPROM memorizer) links to each other with the P0 interface of 89C51 single-chip microcomputer by the 74LS373 latch, is used for depositing program.The circuit that 74HC14 phase inverter and crystal oscillator are formed provides clock signal for 8254 intervalometers.The 74LS138 decoder provides gating signal, is used for controlling the work of each chip.The 74LS74 double D trigger provides clock signal for the ADC0809 A/D converter, and the MAX232 communication interface chip links to each other the 89C51 single-chip microcomputer by the J3 socket with host computer, realizes serial communication.8254 intervalometers, 7,4LS,377 eight D flip-flops, the two tetrad enumerators of 74LS393 are formed dynamic scan circuit, read the data of storage among the U13 (27C256EPROM memorizer).When single-chip microcomputer is received instruction from host computer from the MAX232 communication interface after, under the control of software program, read the data of storage among the U13 (27C256EPROM memorizer) by above-mentioned scanning circuit according to the requirement of host computer, after handling, sequential operation becomes predetermined digital signal, convert analogue signal to by the DAC0832 D/A, the unipolarity aanalogvoltage output circuit of forming through U16 (LF356) operational amplifier outputs to driving and treatment part.Under programme-control, gather the data of ADC0809 A/D converter simultaneously in real time,, guarantee that total magnetic intensity remains in the preset range so that adjust output current.

Drive and treat part by U17, U18, the analog photoelectricity isolation circuit that two CF741 operational amplifiers and two PC817 photoelectrical couplers constitute, U19 (OPA521) power amplification circuit and treatment coil are formed.Unipolarity output signal after the A/D conversion is delivered to power amplifier OPA521 after analog photoelectricity is isolated circuit isolation amplification, adjustable current in output 0～3A scope links to each other drive coil work by the J5 socket with the treatment coil.

Sensing and magnetic field detection part are made up of Hall magnetic field pick off and measuring-signal modulate circuit, the constant-current source that U20 (CF741) constitutes provides the operating current of high stability for magnetic field sensor, and constant-current source, measuring-signal modulate circuit are connected to the Hall magnetic field pick off by socket J6.The millivolt grade signal of magnetic field sensor output amplifies through the U24 secondary after the differential circuit that U21, U22, U23 constitute amplifies again, sends into A/D converter and realizes treating the data acquisition of magnetic field intensity.

Fig. 7 has provided the circuit of power amplifier part.As shown in the figure, the positive input end grounding of power amplifier OPA521.The prime signal is connected to inverting input by resistance R 11 (10k), and inverting input shields by the diode ground connection of two reverse parallel connections.5,7 feet of power amplifier OPA521 connect together, and (0.1 Ω/3w) is as output for connecting resistance R13 again.Draw current drives treatment coil at 0 from circuit.For guaranteed output amplifier OPA521 avoids treating the high-tension impact that coil produces, be connected on the positive-negative power with two protection diode D8, D9.Resistance R 12 and adjustable resistance W8 are used for adjusting the amplification of circuit.For preventing circuit self-oscillation, capacitor C 1 is connected to the output and the input of power amplifier, plays stabilizing circuit.

Fig. 8 is the amplitude frequency spectrum figure of this power amplification circuit output waveform.This waveform is a square wave, and its amplitude frequency spectrum figure can be obtained by following fourier expansion formula in dutycycle position 25%: ${\stackrel{\·}{A}}_{\mathrm{km}}=\frac{2}{T}{\∫}_0^{T}i\left(t\right)e^{-\mathrm{jk\ωt}}\mathrm{dt}$

Therefrom as can be seen, the signal of this waveform representative has extremely abundant spectrum distribution, and the simple harmonic quantity electromagnetic field that is equivalent to different frequency, amplitude acts on simultaneously.Electromagnetic wave in the propagation rate of organism only than the low order of magnitude of very aerial speed, and higher two more than the order of magnitude, thereby electromagnetic field is simultaneous in the effect of each point in one's power than the speed of the propagation rate of biochemical reaction and bio electricity conduction.In addition, for avoiding organizing fixed frequency is stimulated the adaptability that produces, frequency is fluctuateed in 5% scope by software control.Simultaneously, this fluctuation also can be played the antiresonance effect, avoids patient to produce sense of discomfort.

Need to prove that the treatment coil in the device of the present invention can place positions such as human body back, hip, lower limb, upper limb, and osteoporosis is treated.In addition, method and apparatus of the present invention also can be used for analgesia, eliminates edema, treatment soft tissue injury, osteoarthritis, bone does not connect, the difficult healing of fracture etc., and can be used to promote adolescent growth to grow.In addition, because skeleton also has the effect in calcium storehouse in human body, blood calcium concentration is subjected to multiple hormone, as the adjusting of parathyroid hormone, vitamin B, calcitonin and other parts and system factor.Use method and apparatus of the present invention, can reduce calcium level, prevent the cartilaginous tissue calcification, reduce the sickness rate of cardiovascular diseases, diabetes by comprehensive regulation to the above-mentioned factor.

Claims (14)

1. a non-intrusive electromagnetic field is treated osteoporotic device, comprise the coil that is used to produce the treatment electromagnetic field, described treatment electromagnetic field coil is made up of many groups independent winding, is rotatably connected to together by turning cylinder successively, it is characterized in that, each winding is arranged in parallel, and is parallel to turning cylinder, and end of the same name is positioned at the same side, when passing to electric current, the parallel distribution in magnetic field that each winding produces, stack mutually produces basic uniform electric magnetic field at treatment coil surrounding space.

2. device according to claim 1 is characterized in that, described treatment coil is suitable for being arranged near the torso portion of neck to be treated to pelvis.

3. device according to claim 2 is characterized in that, described treatment coil is suitable for making the electromagnetic field of its generation mainly to pass the concentrated zone that distributes, the sharp position of susceptibility of described torso portion.

4. device according to claim 3 is characterized in that, described treatment coil is arranged to make electromagnetic field to be horizontally through described zone along human body.

5. device according to claim 1 is characterized in that described winding technique is on special skeleton.

6. device according to claim 5 is characterized in that, described skeleton hollow space is placed the silicon steel sheet of high magnetic permeability, and the gross thickness of described silicon steel sheet is designed to be full of just whole winding hollow space.

7. device according to claim 5, it is characterized in that, fixed printed circuit board on described skeleton, the start-stop two ends of the lead of the described winding of coiling are welded on the described printed circuit board (PCB), two ends at described printed circuit board (PCB) are welded with flexible circuit conductor respectively, are used for the electrical connection between the adjacent winding.

8. device according to claim 5 is characterized in that, described skeleton two ends are fixed with brace respectively, and the corresponding brace of adjacent winding connects by described turning cylinder.

9. device according to claim 8 is characterized in that described turning cylinder is supported in the damping bearing, by regulating the resistance of described damping bearing, can make resistance between the adjacent winding meet the requirement of specific therapeutic purposes.

10. device according to claim 8 is characterized in that, described brace can be made ± 45 ° of rotations adjacent winding, thereby makes each winding applying human body therapy position.

11. device according to claim 8 is characterized in that, described brace is made by the non-magnetic material.

12. device according to claim 7 is characterized in that, described winding is set at respectively in separately the cabinet.

13. device according to claim 12 is characterized in that, described shell inboard is fixed with current processing plate and magnetic field sensor, and the two forms feedback circuit jointly, is used to monitor magnetic field.

14. device according to claim 12 is characterized in that, described shell inboard is provided with a plurality of locating pieces, is used to make winding in horizontal and vertical accurate location.

Images