Portable double-channel composite electromagnetic field rehabilitation instrument

Abstract

The invention relates to the field of rehabilitation equipment, in particular to a portable dual-channel composite electromagnetic field rehabilitation instrument which comprises a host, a rehabilitation head and a patch electrode, the patch electrode collects electric signals of regional tissue corresponding to a rehabilitation part, an integrated circuit control module of the host processes the electric signals collected by the patch electrode to obtain a frequency-impedance spectrum, and the frequency-impedance spectrum is used for outputting the frequency-impedance spectrum. The frequency corresponding to the minimum impedance value in the frequency-impedance spectrum is used as the output frequency of the radio frequency signal of the radio frequency circuit unit in the current working mode, the radio frequency signal is transmitted to the rehabilitation head through the coaxial cable, and the rehabilitation head generates a composite electromagnetic field to act on the rehabilitation part. It can be guaranteed that the frequency of the composite electromagnetic field output by the rehabilitation head corresponds to the optimal frequency of the impedance characteristic of the target tissue, so that frequency self-adaptive adjustment of the composite electromagnetic field on the target tissue is achieved, and the rehabilitation effect of the composite electromagnetic field on fracture and osteoporosis of the target part is guaranteed.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of rehabilitation equipment, in particular to a portable double-channel composite electromagnetic field rehabilitation instrument. BACKGROUND

[0002] Osteoporosis and the fractures it causes pose a major health threat in the aging societies worldwide. Therefore, it is crucial to take effective measures to alleviate bone loss, reduce the risk of osteoporosis and promote fracture healing. Multiple osteoporosis and fracture treatment guidelines (Osteoporosis Rehabilitation Treatment Guidelines (2024 Edition)), (China Osteoporosis Fracture Diagnosis and Treatment Guidelines) point out that physical therapy is simple, non-invasive, effective and safe, and physical therapy such as magnetic therapy, heat therapy, pulsed electromagnetic field therapy and mechanical load stimulation has the effect of relieving pain, increasing bone density and promoting the recovery of bone mechanical properties.

[0003] Current physical rehabilitation equipment faces multiple restrictions in application, which restricts the rehabilitation effect and patient compliance. Most physical rehabilitation equipment is limited by the different implementation forms of static magnetic field and pulsed magnetic field. The static magnetic field decays quickly in space, and the magnetic therapy equipment is mostly attached to flexible magnetic sheets or single-structure magnetic belts. The magnetic field provided by such magnetic therapy equipment often cannot reach a deep penetration depth. Pulsed electromagnetic field implementation is difficult, and generally requires large equipment, which is expensive and cannot be portable. Existing electromagnetic rehabilitation equipment can only achieve simple output modes and cannot achieve specific stimulation for different rehabilitation sites.

[0004] Therefore, it is necessary to provide a portable double-channel composite electromagnetic field rehabilitation instrument to solve the above problems. SUMMARY

[0005] The present application provides a portable double-channel composite electromagnetic field rehabilitation instrument to solve the existing problems.

[0006] The first aspect of the present application provides a portable double-channel composite electromagnetic field rehabilitation instrument, which adopts the following technical scheme, comprising: a host computer, two coaxial cables are connected to the host computer, one of which is connected to a rehabilitation head, and the other is connected to a rehabilitation head or a patch electrode; The host computer includes a host computer shell assembly, a key module and a display module are arranged on the host computer shell assembly, and an integrated circuit control module, a key circuit module, a display and voice circuit module and a power supply module are arranged in the host computer shell assembly. The integrated circuit control module is used to output radio frequency signals of different modes according to the instruction information input by the key module, and the power supply module is used to supply power to the integrated circuit control module, the key circuit module, the display and voice circuit module, the key module and the display module; The rehabilitation head comprises a rehabilitation shell assembly, a magnetic shielding plate is arranged in the rehabilitation shell assembly, two linear unequal-width Halbach permanent magnet arrays are arranged on the magnetic shielding plate, coils are arranged around the two Halbach permanent magnet arrays and form 8-shaped coils, and the 8-shaped coils are electrically connected with a radio frequency circuit module of a host through a coaxial cable; The patch electrode is used for collecting electrical signals of the region of the rehabilitation part. The integrated circuit control module is used for processing the electrical signals collected by the patch electrode to obtain a frequency-impedance spectrum, and taking a frequency corresponding to a minimum impedance value in the frequency-impedance spectrum as an output frequency of a radio frequency signal in a current working mode of the radio frequency circuit unit. The radio frequency signal output by the integrated circuit control module is transmitted to the 8-shaped coils through the coaxial cable, the pulsed electromagnetic field generated by the 8-shaped coils is coupled with the static magnetic field generated by the Halbach permanent magnet array to form a composite electromagnetic field, and the composite electromagnetic field acts on the rehabilitation part for rehabilitation.

[0007] In a further technical solution of the present application, the linear unequal-width Halbach permanent magnet array comprises: A plurality of first permanent magnets and a plurality of second permanent magnets are arranged in a linear staggered manner, and the width of the first permanent magnet is smaller than that of the second permanent magnet. The magnetization direction of the first permanent magnet is horizontal, and the magnetization direction of the second permanent magnet is vertical.

[0008] In a further technical solution of the present application, the first permanent magnet and the second permanent magnet are both neodymium-iron-boron magnetic blocks, and the width ratio of the first permanent magnet to the second permanent magnet is 1:4.

[0009] In a further technical solution of the present application, the integrated circuit control module comprises: A radio frequency circuit unit; A radio frequency circuit control unit for controlling the radio frequency circuit unit to generate radio frequency signals in different working modes according to instruction information input by the key module; Each working mode parameter includes frequency, waveform, power, and duty cycle. The frequency range is 10Hz-100MHz, the waveform includes square wave, sine wave, triangle wave, and sawtooth wave. The power range is 1w-10w, and the duty cycle is 0%-100%.

[0010] In a further technical solution of the present application, the integrated circuit control module further comprises a radio frequency signal self-monitoring unit. The radio frequency signal self-monitoring unit is used for monitoring the transmission state of the radio frequency signal in the radio frequency circuit unit, the coaxial cable, and the 8-shaped coil, and feeding back the transmission state information to the display and voice circuit module to prompt whether the output of the radio frequency signal is normal through voice and display.

[0011] The further technical scheme of the present application, the integrated circuit control module further comprises: impedance circuit unit, the impedance circuit unit is connected through the coaxial cable and the patch electrode, the impedance circuit unit is used for processing the electric signal collected by the patch electrode to obtain the frequency-impedance spectrum, and the frequency corresponding to the minimum impedance value in the frequency-impidance spectrum is used as the output frequency of the radio frequency signal under the current working mode of the radio frequency circuit unit.

[0012] The further technical scheme of the present application, the different working modes include: double frequency superposition mode, dynamic frequency mode and dynamic power mode.

[0013] The further technical scheme of the present application, when the integrated circuit control module is in the double frequency superposition mode, the integrated circuit control module simultaneously outputs the carrier frequency f1 and the fundamental frequency f2, and the carrier frequency f1 repeats the fundamental frequency f2; when the integrated circuit control module is in the dynamic frequency mode, the carrier frequency f1 output by the integrated circuit control module is unchanged, and the fundamental frequency f2 steps from 0Hz-500Hz by 10Hz; when the integrated circuit control module is in the dynamic power mode, the carrier frequency f1 and the fundamental frequency f2 output by the integrated circuit control module are both unchanged, and the power steps from 0w-10w by 1w.

[0014] The further technical scheme of the present application, the composite electromagnetic field is used for generating a plurality of physical factors, the physical factors include magnetism, electricity and force, and the physical factors are used for acting on the rehabilitation part of the human body to promote the recovery of fracture and osteoporosis of the rehabilitation part.

[0015] The second aspect of the present application provides a use method of the portable double-channel composite electromagnetic field rehabilitation instrument, and the method comprises: First, the rehabilitation head is bound to the target part to be rehabilitated through the binding belt, and the patch electrode is attached to the adjacent area on both sides of the rehabilitation head; The host computer is controlled to work, and the rehabilitation head outputs the swept composite electromagnetic field; The patch electrode collects the electric signal of the target part, and the impedance circuit unit of the integrated circuit control module processes the electric signal collected by the patch electrode to obtain the frequency-impedance spectrum; The frequency corresponding to the minimum impedance value in the frequency-impedance spectrum is used as the output frequency of the radio frequency signal under the current working mode of the radio frequency circuit unit, and the radio frequency circuit unit is controlled to output the radio frequency signal of the frequency corresponding to the minimum impedance value under the current working mode; The patch electrode is detached and replaced with the rehabilitation head, the radio frequency signal is transmitted to the two rehabilitation heads through the coaxial cable, and the rehabilitation head outputs the composite electromagnetic field to act on the target part.

[0016] The present application has the following advantages: 1. The application designs a host, a rehabilitation head and a patch electrode, collects the electrical signals of the target part through the patch electrode, processes the electrical signals collected by the patch electrode through the host integrated circuit control module to obtain the frequency-impedance spectrum, takes the frequency corresponding to the minimum impedance value in the frequency-impedance spectrum as the output frequency of the radio frequency signal of the radio frequency circuit unit in the current working mode, controls the radio frequency circuit unit to output the radio frequency signal of the frequency corresponding to the minimum impedance value in the current working mode, transmits the radio frequency signal to the rehabilitation head through the coaxial cable, and the rehabilitation head outputs the composite electromagnetic field acting on the target part, that is, the composite electromagnetic field is generated by the coupling of the electric field generated by the radio frequency signal input to the 8-shaped coil and the static magnetic field generated by the linear unequal-width Halbach permanent magnet array, that is, the magnetic field distribution of the linear unequal-width Halbach permanent magnet array has the characteristics of single-side magnetic field, high surface magnetic induction intensity and high magnetic field gradient, which is more helpful for deep stimulation of the rehabilitation part, and secondly, the frequency corresponding to the optimal point (the minimum impedance value) of the impedance characteristic is taken as the optimal frequency to control the frequency of the radio frequency signal output by the host, so that the frequency of the composite electromagnetic field output by the rehabilitation head corresponds to the optimal frequency of the impedance characteristic of the target tissue, so that the frequency of the composite electromagnetic field is adaptively adjusted to the target tissue, and the rehabilitation effect of the composite electromagnetic field on the fracture and osteoporosis of the target part is ensured.

[0017] 2. The application has a clever structure design, a high degree of integration of the circuit module, can output different modal composite electromagnetic fields through two channels at the same time, and can realize stimulation of composite electromagnetic fields of different parts of the whole body through the rehabilitation head and the binding belt. The self-monitoring function of the integrated circuit control module can judge the working state of the equipment, and the reliability of the equipment is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only some embodiments of the application, and for those skilled in the art, other drawings can be obtained without creative labor on the basis of these drawings.

[0019] Figure 1 It is a structure diagram of connecting two rehabilitation heads of a portable double-channel composite electromagnetic field rehabilitation instrument of the application; Figure 2 It is an exploded view of the structure of the host in the embodiment of the application; Figure 3 It is an exploded view of the structure of the rehabilitation head in the embodiment of the application; Figure 4 It is a structure diagram of the linear unequal-width Halbach permanent magnet array in the embodiment of the application; Figure 5 magnetic field distribution diagram of the existing permanent magnet array; Figure 6 magnetic field distribution diagram of the linear unequal-width Halbach permanent magnet array in the embodiment of the present application; Figure 7 coil of the existing electromagnetic rehabilitation instrument and the current density distribution diagram corresponding to the coil; Figure 8 8-shaped coil in the embodiment of the present application and the current density distribution diagram corresponding to the 8-shaped coil; Figure 9 frequency-impedance spectrum diagram in the embodiment of the present application; Figure 10 structure diagram of connecting the rehabilitation head and the patch electrode of the portable double-channel composite electromagnetic field rehabilitation instrument of the present application.

[0020] In the figure: 1, main machine; 2, coaxial cable; 3, rehabilitation head; 4, bandage; 101, main machine upper shell; 102, screen; 103, screen guard plate; 104, integrated circuit control module; 105, display and voice circuit module; 106, main machine frame; 107, switch key; 108, battery; 109, loudspeaker compartment; 110, main machine lower shell; 111, first stud; 112, function key; 113, key circuit module; 114, battery guard plate; 115, second stud; 21, cable male head; 22, cable female head; 31, upper rehabilitation shell; 32, Halbach permanent magnet array; 33, 8-shaped coil; 34, magnetic shield plate; 35, mounting shell; 36, lower rehabilitation shell; 321, first permanent magnet; 322, second permanent magnet. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0022] The embodiment of the portable double-channel composite electromagnetic field rehabilitation instrument of the present application comprises: a main machine 1, two coaxial cables 2 are connected to the main machine 1, one of the coaxial cables 2 is connected to a rehabilitation head, and the other coaxial cable 2 is connected to a rehabilitation head 3 or a patch electrode; specifically, as shown in the figure, before rehabilitation, the output frequency of the radio frequency signal in the current working mode of the radio frequency circuit unit of the main machine 1 needs to be controlled; therefore, one coaxial cable 2 of the main machine 1 is connected to one rehabilitation head 3, and the other coaxial cable 2 is connected to a patch electrode; in Figure 10 Figure 10 ​In the state, the output frequency of the radio frequency signal in the current working mode of the radio frequency circuit unit of the host 1 is adjusted, and after the adjustment is completed, the patch electrode is disassembled to install the rehabilitation head 3, that is, as shown in Figure 1 , the structure of Figure 1 can be used for rehabilitation at this time.

[0023] Specifically, in this embodiment, the rehabilitation head 3 is provided with a bandage 4. As shown in Figure 2 , the host 1 includes a host shell assembly, the host shell assembly is provided with a key module 112 and a display module, and the host shell assembly is provided with an integrated circuit control module 104, a key circuit module 113, a display and voice circuit module 105 and a power supply module. The power supply module uses a battery 108, and the power supply module is used to supply power to the integrated circuit control module, the key circuit module, the display and voice circuit module, the key module 112 and the display module. The integrated circuit control module 104 is used to output radio frequency signals in different working modes according to the instruction information input by the key module 112. As shown in Figure 3 , the rehabilitation head 3 includes a rehabilitation shell assembly, a magnetic shielding plate 34 is installed in the rehabilitation shell assembly, two linear unequal width Halbach permanent magnet arrays 32 are arranged on the magnetic shielding plate 34, a coil is arranged on the two Halbach permanent magnet arrays 32 to form an 8-shaped coil 33, and the 8-shaped coil 33 is electrically connected to the radio frequency circuit module of the host 1 through a coaxial cable 2. The patch electrode is electrically connected to the integrated circuit control module of the host through a coaxial cable, and the patch electrode is used to collect the electrical signals of the corresponding regional tissues of the rehabilitation part. The integrated circuit control module 104 is used to process the electrical signals collected by the patch electrode to obtain a frequency-impedance spectrum, and the frequency corresponding to the smallest impedance value in the frequency-impedance spectrum is taken as the output frequency of the radio frequency signal in the current working mode of the radio frequency circuit unit. The radio frequency signal output by the integrated circuit control module 104 is transmitted to the 8-shaped coil 33 through the coaxial cable 2, the pulsed electromagnetic field generated by the 8-shaped coil 33 and the static magnetic field generated by the Halbach permanent magnet array 32 are coupled to form a composite electromagnetic field, and the composite electromagnetic field acts on the rehabilitation part for rehabilitation.

[0024] For example, as shown in Figure 4As shown, in one specific embodiment, the linear unequal-width Halbach permanent magnet array 32 comprises: a plurality of first permanent magnets 321 and a plurality of second permanent magnets 322, the first permanent magnets 321 and the second permanent magnets 322 are arranged in a linear staggered manner, and the width of the first permanent magnets 321 is smaller than the width of the second permanent magnets 322, the magnetization direction of the first permanent magnets 321 is horizontal, and the magnetization direction of the second permanent magnets 322 is vertical; Specifically, the first permanent magnets 321 and the second permanent magnets 322 are both neodymium iron boron blocks, and the width ratio of the first permanent magnets 321 to the second permanent magnets 322 is 1:4. It should be noted that the linear unequal-width Halbach permanent magnet array 32 is used in this embodiment, and the linear unequal-width Halbach permanent magnet array 32 has high magnetization strength and can output a large gradient static magnetic field coupled with a pulsed electromagnetic field.

[0025] Exemplarily, in one specific embodiment, the integrated circuit control module 104 comprises: a radio frequency circuit unit and a radio frequency circuit control unit, the radio frequency circuit control unit is used to control the radio frequency circuit unit to generate radio frequency signals of different working modes according to the instruction information input by the key module 112; Wherein, the parameters of each working mode include frequency, waveform, power, duty cycle, in this embodiment, the frequency range is 10Hz-100MHz, the waveform includes square wave, sine wave, triangle wave and sawtooth wave; The power range is 1w-10w, and the duty cycle is 0%-100%. Wherein, different working modes include: double-frequency superposition mode, dynamic frequency mode and dynamic power mode, specifically, when the integrated circuit control module 104 is in double-frequency superposition mode, the integrated circuit control module 104 simultaneously outputs carrier frequency f1 and fundamental frequency f2, and the carrier frequency f1 repeats with the fundamental frequency f2; When the integrated circuit control module 104 is in dynamic frequency mode, the carrier frequency f1 output by the integrated circuit control module 104 is constant, and the fundamental frequency f2 steps from 0Hz to 500Hz with a step of 10Hz; When the integrated circuit control module is in dynamic power mode, the carrier frequency f1 and the fundamental frequency f2 output by the integrated circuit control module 104 are both constant, and the power steps from 0w to 10w with a step of 1w.

[0026] Wherein, in this embodiment, the integrated circuit control module 104 further comprises: a radio frequency signal self-monitoring unit, the radio frequency signal self-monitoring unit is used to monitor the transmission state of the radio frequency signal in the radio frequency circuit unit, the coaxial cable 2 and the 8-shaped coil 33, and feedback the transmission state information to the display and voice circuit module 105, and prompt whether the output of the radio frequency signal is normal through the display and voice circuit module 105.

[0027] In the embodiment, the integrated circuit control module further comprises an impedance circuit unit connected with the coaxial cable and the patch electrode, the impedance circuit unit is configured to process the electrical signal collected by the patch electrode to obtain a frequency-impedance spectrum, and a frequency corresponding to a minimum impedance value in the frequency-impedance spectrum is taken as an output frequency of the radio frequency signal in the current operating mode of the radio frequency circuit unit.

[0028] In an example, in a specific embodiment, the host shell assembly comprises a host upper shell 101, a host frame 106 and a host lower shell 110, the host frame 106 is matched with the host upper shell 101 and the host lower shell 110 through a card slot structure, and the host upper shell 101, the host frame 106 and the host lower shell 110 are sequentially connected to form a sealed shell body. Figure 2 As shown in the figure, the host lower shell 110 is provided with a loudspeaker compartment 109, a battery compartment, a first stud 111 and a second stud 115, the first stud 111 is used to connect the host upper shell 101 through a screw, the host frame 106 is positioned between the host upper shell 101 and the host lower shell 110, a loudspeaker is installed in the loudspeaker compartment 109, the battery compartment is provided with a surrounding barrier, a battery 108 is arranged in the surrounding barrier of the battery compartment, direct current output by the battery 108 is stabilized and filtered to supply power to the integrated circuit control module 104, the key circuit module 113, the display and voice circuit module 105 and the display module, and the system is ensured to operate stably. The host frame 106 is provided with a battery guard plate 114, the second stud 115 is used to fix the battery guard plate 114 through a screw, the surrounding barrier of the battery compartment and the battery guard plate 115 jointly play a limiting role on the battery 108, the host frame 106 is provided with a through slot matched with the switch key 107, the cable connection head of the coaxial cable 2 and the charging connector, the switch key 107 and the charging connector are connected with the radio frequency circuit unit, the cable line female head 22 of the cable connection head is connected with the key circuit module 113, the key circuit module 113 and the integrated circuit control module 104 are electrically connected through a pin, and a copper column and a screw are used for fixation; the display and voice circuit module 105 is electrically connected with the integrated circuit control module 104 through a wire, the key button on the key module 112 is in contact with the key structure, that is, an instruction signal is input through the key module 112, the instruction signal is detected and encoded by the key circuit module 113, and then transmitted to the integrated circuit control module 104 as a control instruction of the operating mode, and the control instruction controls the radio frequency circuit unit of the integrated circuit control module 104 to output the radio frequency signal in the corresponding operating mode.

[0029] As shown in the figure, Figure 2As shown, the display module is embedded on the upper shell 101 of the host, the display module adopts a screen 102, that is, the screen 102 is embedded in the mounting groove provided on the upper shell 101 of the host, and the screen 102 and the speaker are electrically connected with the display and voice circuit module 105 through wires. The lower side of the screen 102 is a screen guard 103, which is fixed with the integrated circuit control module 104 through screw columns, for supporting the screen 102 and protecting the integrated circuit control module 104. The output of the integrated circuit control module 104 can be controlled by the key module 112 to output radio frequency signals in different working modes. The screen 102 receives the working parameter signals transmitted by the radio frequency circuit unit through the display and voice circuit module 105 and displays images. The voice chip built in the display and voice circuit module 105 outputs corresponding audio files after receiving the control signals, and the loudspeaker is driven by the power amplifier to produce sound. In this embodiment, the screen 102 is used to display the working mode, working time countdown, battery power and whether the output of the radio frequency signal is normal. The speaker is used to voice broadcast the information of starting or ending the work of the host 1, switching the working mode, and power shortage warning. In addition, reinforcing ribs are arranged in the upper shell 101 and the lower shell 110 of the host to enhance the strength of the shell.

[0030] As shown in the example, Figure 3 As shown in the example,

[0031] A use method of a portable double-channel composite electromagnetic field rehabilitation instrument, comprising: first, according to the above description, the Halbach permanent magnet array 32 is arranged on the magnetic shielding plate 34 in the mounting shell 35, a coil is arranged on each Halbach permanent magnet array 32, the two coils form an 8-shaped coil 33, and the 8-shaped coil 33 is connected with the coaxial cable 2 after penetrating out of the mounting shell 35. The magnetic shielding plate 34 is used to shield the magnetic lines of force below the Halbach permanent magnet array 32, reduce the magnetic field leakage in the direction of the non-rehabilitation part, and enhance the magnetic field strength in the direction of the rehabilitation part. The principle is to guide and redistribute the magnetic flux by using high magnetic permeability materials, so that the magnetic field is mainly concentrated on the contact side of the action rehabilitation part, and the use efficiency of the magnetic field is improved. The radio frequency signal output by the radio frequency circuit unit of the integrated circuit control module 104 is transmitted to the 8-shaped coil 33 through the coaxial cable 2, the pulsed electromagnetic field generated by the 8-shaped coil 33 is coupled with the static magnetic field generated by the Halbach permanent magnet array 32 to form a composite electromagnetic field, and the composite electromagnetic field acts on the rehabilitation part to perform rehabilitation treatment. Figure 10The structure shown, to install the patch electrode, and then the rehabilitation head through the bandage bound to the target site of rehabilitation, and the patch electrode paste on both sides of the adjacent area of the rehabilitation head; control host work, the rehabilitation head output sweep composite electromagnetic field; patch electrode collection target site electrical signals, integrated circuit control module impedance circuit unit to patch electrode collection of electrical signals for processing to get the frequency-impedance spectrum; the frequency-impedance spectrum of the smallest impedance value corresponding to the frequency as the output frequency of the radio frequency signal of the radio frequency circuit unit in the current operating mode; according to Figure 1 The structure shown, the patch electrode is disassembled and replaced with a rehabilitation head, at this time, control the radio frequency circuit unit to output the radio frequency signal of the frequency corresponding to the smallest impedance value in the current operating mode, the radio frequency signal is transmitted to the two rehabilitation heads through the coaxial cable, and the rehabilitation head outputs the composite electromagnetic field acting on the target site.

[0032] The following describes the embodiment in conjunction with the drawings: The existing permanent magnet array and the linear unequal-width Halbach permanent magnet array in the embodiment are simulated respectively, the magnetic field distribution diagram of the existing permanent magnet array is Figure 5 , the magnetic field distribution of the linear unequal-width Halbach permanent magnet array in the embodiment obtained by simulation is as shown in Figure 6 , the magnetic field distribution of the linear unequal-width Halbach permanent magnet array in the embodiment obtained by simulation is as shown in Figure 5 The magnetic field distribution is uniform, but the magnetic field gradient is small, and the surface magnetic induction intensity is small, as shown in Figure 6 The magnetic field distribution of the linear unequal-width Halbach permanent magnet array in the embodiment has the characteristics of single-sided magnetic field, the surface magnetic induction intensity is high, and the magnetic field gradient is high, which is more conducive to deep stimulation. The width of the magnet in the vertical magnetization direction is greater than that in the horizontal magnetization direction, which improves the distribution efficiency of the magnetic field.

[0033] As shown in Figure 7 and Figure 8 , the pulse electromagnetic field simulation experiment is carried out, and the spatial distribution diagram of the induced current density in the human body model is obtained, it can be seen that the induced current density generated by the existing serpentine coil is uniformly distributed in the human body model, and the penetration is shallow; the 8-shaped coil has the focusing feature, the induced current density generated by the 8-shaped coil focuses in the human body model, and deeper stimulation is achieved.

[0034] As shown in Figure 9 , the frequency-impedance spectrum measurement experiment is carried out, the electrical signals collected by the patch electrode are transmitted to the integrated circuit control module, and the frequency-impedance spectrum is obtained by processing, with the increase of the frequency, the impedance of the action area decreases, and after reaching the characteristic frequency, the impedance value decreases to the minimum.

[0035] Working principle In use, first, the two rehabilitation heads 3 are respectively bound to the target parts to be rehabilitated by the bandages 4, then, the patch electrodes are pasted on the adjacent areas on both sides of the rehabilitation heads, the host 1 is started, the radio frequency signal under the current working mode is output by the rehabilitation heads 3 to sweep the composite electromagnetic field, when the composite electromagnetic field acts on the tissues of the target parts, the impedance and dielectric properties change with the frequency. At this time, the patch electrodes can collect the electric signals (voltage and current signals) of the target parts, the electric signals reflect the frequency response characteristics of the target tissues, the electric signals are transmitted to the impedance circuit unit of the integrated circuit control module through the coaxial cable 2, the impedance circuit unit processes the electric signals collected by the patch electrodes to obtain the frequency-impedance spectrum, the frequency-impedance spectrum is as shown in Figure 9 The frequency corresponding to the minimum impedance value in the frequency-impedance spectrum is taken as the output frequency of the radio frequency signal under the current working mode of the radio frequency circuit unit, at this time, the output frequency of the radio frequency signal under the current working mode is adjusted to the frequency corresponding to the minimum impedance value in the frequency-impedance spectrum, the host 1 is started to work, the host 1 works to output the radio frequency signal, the radio frequency signal is output by the rehabilitation heads 3 to act on the target parts, the physical factors in the composite electromagnetic field act on the target parts of the human body, and the recovery of the fracture and osteoporosis of the target parts is promoted.

[0036] It should be noted that the frequency corresponding to the optimal point (the minimum impedance value) of the impedance characteristics is identified, then, the frequency corresponding to the optimal point (the minimum impedance value) of the impedance characteristics is taken as the optimal frequency to control the frequency of the radio frequency signal output by the host 1, so that the frequency of the composite electromagnetic field output by the rehabilitation heads 3 corresponds to the optimal frequency of the impedance characteristics of the target tissues, thereby realizing the frequency self-adaptive adjustment of the composite electromagnetic field to the target tissues, and ensuring the rehabilitation effect of the composite electromagnetic field on the fracture and osteoporosis of the target parts.

[0037] The above only describes the preferred embodiments of the present application and should not be used to limit the present application, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A portable dual channel combined electromagnetic field rehabilitation apparatus, characterized in that, The application relates to a rehabilitation device. The main machine is connected with two coaxial cables, one of which is connected with a rehabilitation head, and the other is connected with a rehabilitation head or a patch electrode. The main machine comprises a main machine shell assembly, a key module and a display module arranged on the main machine shell assembly, and an integrated circuit control module, a key circuit module, a display and voice circuit module and a power supply module arranged in the main machine shell assembly, wherein the integrated circuit control module is used for outputting radio frequency signals in different modes according to instruction information input by the key module, and the power supply module is used for supplying power to the integrated circuit control module, the key circuit module, the display and voice circuit module, the key module and the display module. The rehabilitation head comprises a rehabilitation shell assembly, a magnetic shielding plate arranged in the rehabilitation shell assembly, two linear unequal-width Halbach permanent magnet arrays arranged on the magnetic shielding plate, and a coil wound on the two Halbach permanent magnet arrays and forming an 8-shaped coil, the 8-shaped coil being electrically connected with a radio frequency circuit module of the main machine through a coaxial cable, and a bandage arranged on the rehabilitation head. The patch electrode is used for collecting electric signals of the corresponding area of the rehabilitation part; the integrated circuit control module is used for processing the electric signals collected by the patch electrode to obtain a frequency-impedance spectrum, taking a frequency corresponding to the minimum impedance value in the frequency-impedance spectrum as an output frequency of the radio frequency signal in the current working mode of the radio frequency circuit unit, and transmitting the radio frequency signal output by the integrated circuit control module to the 8-shaped coil through the coaxial cable, so that a pulsed electromagnetic field generated by the 8-shaped coil and a static magnetic field generated by the Halbach permanent magnet array are coupled to form a composite electromagnetic field, and the composite electromagnetic field acts on the rehabilitation part.

2. The portable dual access combined electromagnetic field rehabilitation apparatus according to claim 1, characterized in that, The linear unequal-width Halbach permanent magnet array comprises a plurality of first permanent magnets and a plurality of second permanent magnets, the first permanent magnets and the second permanent magnets are arranged in a linear staggered mode, the width of the first permanent magnets is smaller than that of the second permanent magnets, the magnetization direction of the first permanent magnets is horizontal, and the magnetization direction of the second permanent magnets is vertical. The first permanent magnets and the second permanent magnets are both neodymium-iron-boron magnetic blocks, and the width ratio of the first permanent magnets to the second permanent magnets is 1:

4.

3. The portable dual access combined electromagnetic field rehabilitation apparatus according to claim 2, characterized in that, The integrated circuit control module comprises a radio frequency circuit unit and a radio frequency circuit control unit used for controlling the radio frequency circuit unit to generate radio frequency signals in different working modes according to instruction information input by the key module.

4. The portable dual access combined electromagnetic field rehabilitation apparatus according to claim 1, characterized in that, The parameters of each working mode include frequency, waveform, power and duty cycle, the frequency range is 10Hz-100MHz, the waveform includes square wave, sine wave, triangular wave and sawtooth wave, the power range is 1w-10w, and the duty cycle is 0%-100%. The integrated circuit control module further comprises a radio frequency signal self-monitoring unit used for monitoring the transmission state of the radio frequency signal in the radio frequency circuit unit, the coaxial cable and the 8-shaped coil, and feeding back the transmission state information to the display and voice circuit module, so as to prompt whether the output of the radio frequency signal is normal through voice and display. ​ ​ 5. The portable dual access combined electromagnetic field rehabilitation apparatus according to claim 4, characterized in that, ​ 6. The portable dual access combined electromagnetic field rehabilitation apparatus according to claim 4, characterized in that, The integrated circuit control module further comprises an impedance circuit unit connected with the coaxial cable and the patch electrode, and the impedance circuit unit is used for processing the electrical signal collected by the patch electrode to obtain a frequency-impedance spectrum, and taking the frequency corresponding to the minimum impedance value in the frequency-impedance spectrum as the output frequency of the radio frequency signal in the current working mode of the radio frequency circuit unit.

7. The portable dual access combined electromagnetic field rehabilitation apparatus according to claim 1, characterized in that, The different working modes include a double-frequency superposition mode, a dynamic frequency mode and a dynamic power mode.

8. The portable dual access combined electromagnetic field rehabilitation apparatus according to claim 7, characterized in that, When the integrated circuit control module is in the double-frequency superposition mode, the integrated circuit control module simultaneously outputs the carrier frequency f1 and the fundamental frequency f2, and the carrier frequency f1 repeats the fundamental frequency f2; when the integrated circuit control module is in the dynamic frequency mode, the carrier frequency f1 output by the integrated circuit control module is unchanged, and the fundamental frequency f2 steps from 0 Hz to 500 Hz at 10 Hz; when the integrated circuit control module is in the dynamic power mode, the carrier frequency f1 and the fundamental frequency f2 output by the integrated circuit control module are both unchanged, and the power steps from 0 W to 10 W at 1 W.

9. The portable dual access combined electromagnetic field rehabilitation apparatus according to claim 1, characterized in that, The composite electromagnetic field is used for generating various physical factors including magnetism, electricity and force, and the physical factors are used for acting on the rehabilitation part of the human body to promote the recovery of the fracture and osteoporosis of the rehabilitation part.

10. A method of using the portable dual access combined electromagnetic field rehabilitation apparatus according to any one of claims 1-9, characterized in that, The method comprises the steps of: First, the rehabilitation head is bound to the target part to be rehabilitated through a binding belt, and the patch electrode is attached to the adjacent area on both sides of the rehabilitation head; The host computer is controlled to work, and the rehabilitation head outputs the swept composite electromagnetic field; The patch electrode collects the electrical signal of the target part, and the impedance circuit unit of the integrated circuit control module processes the electrical signal collected by the patch electrode to obtain a frequency-impedance spectrum; The frequency corresponding to the minimum impedance value in the frequency-impedance spectrum is taken as the output frequency of the radio frequency signal in the current working mode of the radio frequency circuit unit, and the radio frequency circuit unit is controlled to output the radio frequency signal with the frequency corresponding to the minimum impedance value in the current working mode; The patch electrode is disassembled and replaced with the rehabilitation head, the radio frequency signal is transmitted to the two rehabilitation heads through the coaxial cable, and the rehabilitation head outputs the composite electromagnetic field to act on the target part.

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