CN105079967A - Cell physiotherapy apparatus based on pulse magnetic field and pulse electric waves - Google Patents

Abstract

The invention discloses a cell physiotherapy instrument based on pulsed magnetic field and pulsed electric wave, comprising: a pulsed magnetic field generation circuit; a square wave oscillation circuit; the frequency and duty ratio of the square wave signal output by the square wave oscillation circuit are adjustable; and The first electrode probe and the second electrode probe connected to the output end of the square wave oscillating circuit; the first power conversion circuit; the pulsed magnetic field generation circuit includes: capacitor C4, inductor L1, controllable switch K1 and for controlling the The switch control circuit in which the controllable switch K1 is turned off and on; the capacitor C4 is connected in parallel to the output end of the first power conversion circuit; the controllable switch K1 and the inductor L1 form a series branch, and the series connection The branch circuit is connected in parallel with the capacitor C4; the present invention can complete the magnetic therapy and pulse electric wave stimulation therapy for the human body, the circuit structure is simple, and the hardware cost is low.

Description

Cell physiotherapy instrument based on pulsed magnetic field and pulsed electric wave

technical field

The invention relates to a physiotherapeutic instrument, in particular to a cell physiotherapeutic instrument based on pulsed magnetic fields and pulsed electric waves.

Background technique

Any object has strong or weak magnetism, and living organisms are no exception. Physiological activities of organisms also generate magnetic fields, so general organisms have weak magnetism, but these biological magnetic fields are very weak. For example, the magnetic induction intensity generated by the beating heart of a normal person is about 10 ^-10 T, and the magnetic induction intensity generated by brain nerve activity is about 5×10 ^-13 T. After the human body has a disease, its magnetism is different from that of a normal person, so the magnetism of human cells can be artificially changed to prevent and treat diseases. Long-term studies have found that many organisms are affected by the external magnetic field to change their growth, life activities, and behavioral characteristics. For example, the instinct of pigeons to "recognize their home" is related to the geomagnetic field. The influence of magnetic field on organisms also plays an important role in medicine. For example, the use of magnets to treat diseases was done as early as 200 BC (Western Han Dynasty). In Li Shizhen's "Compendium of Materia Medica", there are more than ten kinds of records of diseases treated with magnetite or medicine based on magnetite. At present, magnetic therapy has achieved remarkable effects in the treatment of various diseases such as lumbar muscle strain and hemangioma, and most of these treatments use permanent magnetic fields. The cells of the human body or organisms are charged and magnetic, and the cells of the human body are paramagnetic substances. When a pulsed magnetic field is applied to a certain part of the human body, when the pulsed magnetic field reaches the maximum value, it will intersect with the nerve cells. Therefore, induced electromotive force is generated, which causes nerve excitation and accelerates the micro-movement of cells; when the pulsed magnetic field drops to the minimum value, the nerve cells return to the speed without magnetic field. In this way, with the change of the external pulsed magnetic field, the cells repeatedly accelerate and decelerate, just like particles reciprocating in situ, which excites the cells and is conducive to restoring health. During magnetic therapy, the human body does not feel, which is a potential non-immediate treatment.

There are many circuits that generate pulsed electric waves. Pulsed electric waves include continuous or intermittent sine waves, continuous or intermittent triangular waves, continuous or intermittent square waves, continuous or intermittent trapezoidal waves, etc. There are a large number of sodium ions (Na ⁺ ), potassium ions (K ⁺ ), and chloride ions (Cl ⁺ ) in the human body. These ions are good conductors. When the electrodes outputting pulse electric waves touch the two skins of the human body, the pulse The electric current acts on a large number of cells under the skin where the probe or probe touches, and the electric pulse produces a stimulation similar to a needle prick, and the stimulation intensity can be adjusted.

Contents of the invention

In view of the above problems, the present invention develops a cell physiotherapy instrument based on pulsed magnetic field and pulsed electric wave, which can realize both magnetic therapy and pulsed electric wave physiotherapy.

Technical means of the present invention is as follows:

A cell physiotherapy device based on pulsed magnetic field and pulsed electric wave, including:

Pulse magnetic field generating circuit;

Square wave oscillation circuit; the frequency and duty cycle of the square wave signal output by the square wave oscillation circuit are adjustable;

A first electrode probe and a second electrode probe connected to the output end of the square wave oscillation circuit;

a first power conversion circuit;

The pulsed magnetic field generation circuit includes: a capacitor C4, an inductor L1, a controllable switch K1 and a switch control circuit for controlling the controllable switch K1 to be turned off and on; the capacitor C4 is connected in parallel to the first power supply The output terminal of the conversion circuit; the controllable switch K1 and the inductor L1 form a series branch, and the series branch is connected in parallel with the capacitor C4; when the controllable switch K1 is disconnected, the first power conversion circuit The capacitor C4 is charged, and when the controllable switch K1 is turned on, the capacitor C4 discharges the inductor L1;

Further, the controllable switch K1 adopts a relay; the first power conversion circuit can obtain a DC power supply V1 for supplying power to the switch control circuit; the switch control circuit includes: an inverter U2, a resistor R5, and a capacitor C5 , resistor Rt1, resistor R4, triode VT0 and diode VD4; the inverter U2 adopts a CD4069 chip; the pin 1A of the inverter U2 is connected to the inverter U2 via the resistor R5 and the capacitor C5 connected in series Pin 2Y; the pin 2Y of the inverter U2 is connected to the pin 3A, pin 4A, pin 5A and pin 6A of the inverter U2; the series connection point of the resistor R5 and the capacitor C5 Connect the pin 3Y, pin 4Y, pin 5Y, pin 6Y, and one end of the resistor R4 of the inverter U2 through the resistor Rt1; the other end of the resistor R4 is connected to the base of the triode VTO; The emitter is connected to the ground of the DC power supply V1; the collector of the triode VTO is connected to the positive pole of the DC power supply V1 through the diode VD4; the coil of the relay is connected in parallel with the diode VD4; the normally open contact of the relay is connected in series with the inductor L1 forming said series branch;

Further, the cell physiotherapy instrument also includes a step-down rectification circuit and a second power conversion circuit; the input end of the first power conversion circuit and the input end of the second power conversion circuit are connected to the output end of the step-down rectification circuit connected; the second power conversion circuit can be converted to obtain a DC power supply V2 for supplying power to the square wave oscillating circuit;

Further, the square wave oscillation circuit includes: capacitor Ct, capacitor C6, capacitor C7, resistor Rt2, resistor R6, resistor R7, resistor R8, resistor R9, resistor R10, potentiometer Rp1, monostable multivibrator U3 , transformer T2, MOS tube VT1 and MOS tube VT2; the monostable multivibrator U3 adopts a CD4047 chip; the pin C of the monostable multivibrator U3 is connected through the capacitor Ct connected in series with the resistor Rt2 The pin R of the monostable multivibrator U3; the series connection point of the capacitor Ct and the resistance Rt2 is connected with the pin RCCOMMON of the monostable multivibrator U3; the pin of the monostable multivibrator U3 The pin ASTABLE, the pin -TRIGGER and the pin Vdd are connected to the positive pole of the DC power supply V2 via the switch S2; the pin Vss, the pin +TRIGGER, the pin EXTRESET and the pin RETRIGGER of the monostable multivibrator U3 Connect the DC power supply V2 ground; the pin Q of the monostable multivibrator U3 is connected to the gate of the MOS transistor VT2 through a resistor R7; the pin of the monostable multivibrator U3 Connect the gate of the MOS transistor VT1 through a resistor R6; the source of the MOS transistor VT1 is connected to the ground of the DC power supply V2 through a resistor R8; the source of the MOS transistor VT2 is connected to the ground of the DC power supply V2 through a resistor R9; the primary coil of the transformer T2 It has an intermediate tap, which is connected to the positive pole of the DC power supply V2 through the switch S2; the drain of the MOS transistor VT1 is connected to one end of the primary coil of the transformer T2, and the drain of the MOS transistor VT2 is connected to the other end of the primary coil of the transformer T2; the capacitor C6 and Capacitors C7 are connected in parallel to both ends of the secondary coil of the transformer T2; one end of the resistor R10 is connected to one end of the secondary coil of the transformer T2, and the other end of the resistor R10 is connected to the first electrode probe and the adjustable end of the potentiometer Rp1; A fixed end of the potentiometer Rp1 is connected to the other end of the secondary coil of the transformer T2 and the second electrode probe;

Further, the square wave oscillation circuit includes: resistor Rb1, resistor Rb2, resistor Rb3, resistor Rb4, resistor Rc1, resistor Rc2, resistor R11, potentiometer Rp2, capacitor C8, capacitor C9, transistor VT3, transistor VT4, transistor VT5 , triode VT6, transformer T3 and switch S3; said resistor Rc1, resistor Rb1, resistor Rb2 and resistor Rc2 are connected to the positive pole of DC power supply V2 through switch S3; the other end of said resistor Rc1 is connected to the collector of triode VT5, and is Connect the base of the transistor VT4; the other end of the resistor Rc2 is connected to the collector of the transistor VT6, and the base of the transistor VT3 is connected through the resistor Rb3; the other end of the resistor Rb1 is connected to the base of the transistor VT6, and the resistor Rc1 is connected through the capacitor C8; The other end of the resistor Rb2 is connected to the base of the triode VT5, and connected to the resistor Rc2 through the capacitor C9; the emitter of the triode VT3, the emitter of the triode VT4, the emitter of the triode VT5 and the emitter of the triode VT6 are all connected to the ground of the DC power supply V2; the transformer T3 The primary coil has an intermediate tap, and the intermediate tap is connected to the positive pole of the DC power supply V2 via the switch S3; the collector of the triode VT3 is connected to one end of the primary coil of the transformer T3, and the collector of the triode VT4 is connected to the other end of the primary coil of the transformer T3; one end of the resistor R11 One end of the secondary coil of the transformer T3 is connected, the other end of the resistor R11 is connected to the first electrode probe and the adjustable end of the potentiometer Rp2; the fixed end of the potentiometer Rp2 is connected to the other end of the secondary coil of the transformer T3 and the second Electrode probe;

Further, the square wave oscillating circuit also includes a power-on indication circuit; the power-on indication circuit includes a resistor R14, a resistor R15, a transistor VT7 and a light-emitting diode VD7; the collector of the transistor VT7 passes through the series-connected light-emitting diode VD7 and resistor R15 Connect the positive pole of the DC power supply V2; the emitter of the triode VT7 is connected to the ground of the DC power supply V2; the base of the triode VT7 is connected to the collector of the triode VT6 through a resistor R14;

Further, the step-down rectification circuit includes a transformer T1 and a rectifier bridge B1; the primary of the transformer T1 is connected to the AC grid; the secondary of the transformer T1 is connected to the input terminal of the rectifier bridge B1; the first power conversion circuit Including capacitor C1, capacitor C2, capacitor C3, three-terminal regulator U1, resistor R1, resistor R2, diode VD1, diode VD2 and voltage regulator tube VD3; the capacitor C1 and capacitor C2 are connected in parallel to each other in the rectifier bridge B1 output terminal; the three-terminal voltage regulator U1 adopts chip LM317; the voltage input pin Vin of the three-terminal voltage regulator U1 is connected with the positive output terminal of the rectifier bridge B1; the voltage of the three-terminal voltage regulator U1 The adjustment pin Adj is connected to the negative output terminal of the rectifier bridge B1 through a resistor R2; the voltage output pin Vout of the three-terminal voltage regulator U1 is connected to the negative output terminal of the rectifier bridge B1 through a resistor R1 and a capacitor C3 connected in series; the resistor R1 The series connection point with the capacitor C3 is connected to the voltage regulation pin Adj of the three-terminal voltage regulator U1; the anode of the diode VD2 and the cathode of the voltage regulator tube VD3 are both connected to the voltage output pin of the three-terminal voltage regulator U1 Vout, the cathode of the diode VD2 is connected to the voltage input pin Vin of the three-terminal regulator U1; the anode of the voltage regulator tube VD3 is used as the positive pole of the DC power supply V1; the negative output terminal of the rectifier bridge B1 is used as the ground of the DC power supply V1; The voltage output pin Vout of the three-terminal regulator U1 and the output negative end of the rectifier bridge B1 are used as the output end of the first power conversion circuit;

Further, the second power conversion circuit includes a capacitor C11, a capacitor C12, a capacitor C13, a three-terminal voltage regulator U4, a resistor R12, a resistor R13, a diode VD4, and a diode VD5; the capacitor C11 and the output of the rectifier bridge B1 The terminals are connected in parallel; the three-terminal voltage regulator U4 adopts a chip LM317; the voltage input pin Vin of the three-terminal voltage regulator U4 is connected to the positive output terminal of the rectifier bridge B1; the three-terminal voltage regulator U4 The voltage adjustment pin Adj is connected to the output negative terminal of the rectifier bridge B1 through the resistor R12; the voltage output pin Vout of the three-terminal voltage regulator U4 is connected to the output negative terminal of the rectifier bridge B1 through the resistor R13 and the capacitor C12 connected in series; the resistor The series connection point of R13 and capacitor C12 is connected to the voltage regulation pin Adj of the three-terminal regulator U4; the anode of the diode VD5 is connected to the voltage output pin Vout of the three-terminal regulator U4, and the cathode of the diode VD5 is connected to The voltage input pin Vin of the three-terminal voltage stabilizer U4; the voltage output pin Vout of the three-terminal voltage stabilizer U4 is used as the positive pole of the DC power supply V2; the output negative terminal of the rectifier bridge B1 is used as the ground of the DC power supply V2;

Further, the first electrode probe adopts a sheet electrode structure; the second electrode probe adopts a rod electrode structure.

Due to the adoption of the above technical scheme, the cell physiotherapy instrument based on pulsed magnetic field and pulsed electric wave provided by the present invention can conveniently complete the magnetic therapy and pulsed electric wave stimulation treatment for the human body. The circuit structure of the present invention is simple, the hardware cost is low, and it is suitable for The field of physiotherapy is widely promoted.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained according to these drawings without any creative effort.

Fig. 1 is the structural block diagram of cell physiotherapy instrument of the present invention;

Fig. 2 is the circuit schematic diagram of the pulsed magnetic field generation circuit of the present invention;

Fig. 3 is the circuit schematic diagram of the square wave oscillation circuit of embodiment 1 of the present invention;

Fig. 4 is the circuit schematic diagram of the square wave oscillation circuit of embodiment 2 of the present invention;

Fig. 5 is the schematic diagram of step-down rectification circuit of the present invention;

Fig. 6 is a circuit schematic diagram of the first power conversion circuit of the present invention;

Fig. 7 is a circuit schematic diagram of a second power conversion circuit of the present invention;

Fig. 8 is a simplified schematic diagram of the pulsed magnetic field generating circuit of the present invention;

Fig. 9 is a time-domain waveform diagram of an ideal square wave;

Figure 10 is an amplitude spectrum diagram of an ideal square wave.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

A cell physiotherapy instrument based on pulsed magnetic field and pulsed electric wave as shown in Figure 1, Figure 2, Figure 3, Figure 4, Figure 5, Figure 6 and Figure 7, comprising: a pulsed magnetic field generation circuit; a square wave oscillation circuit; The frequency and the duty ratio of the square wave signal output by the square wave oscillation circuit are adjustable; the first electrode probe and the second electrode probe connected to the output end of the square wave oscillation circuit; the first power conversion circuit; the pulse The magnetic field generating circuit includes: a capacitor C4, an inductor L1, a controllable switch K1, and a switch control circuit for controlling the controllable switch K1 to be turned off and on; the capacitor C4 is connected in parallel to the output of the first power conversion circuit terminal; the controllable switch K1 and the inductor L1 form a series branch, and the series branch is connected in parallel with the capacitor C4; when the controllable switch K1 is disconnected, the first power conversion circuit charges the capacitor C4 , when the controllable switch K1 is turned on, the capacitor C4 discharges the inductance L1; further, the controllable switch K1 adopts a relay; the first power conversion circuit can obtain power for the switch control circuit DC power supply V1; the switch control circuit includes: an inverter U2, a resistor R5, a capacitor C5, a resistor Rt1, a resistor R4, a triode VT0 and a diode VD4; the inverter U2 adopts a CD4069 chip; the inverter U2 The pin 1A of the inverter U2 is connected to the pin 2Y of the inverter U2 via the resistor R5 and the capacitor C5 connected in series; the pin 2Y of the inverter U2 is connected to the pin 3A and the pin 4A of the inverter U2 , pin 5A and pin 6A are connected; the series connection point of the resistor R5 and the capacitor C5 is connected to the pin 3Y, pin 4Y, pin 5Y, pin 6Y, and resistor of the inverter U2 through the resistor Rt1 One end of R4; the other end of resistor R4 is connected to the base of the triode VTO; the emitter of the triode VTO is connected to the ground of the DC power supply V1; the collector of the triode VTO is connected to the positive pole of the DC power supply V1 via the diode VD4; the coil of the relay It is connected in parallel with the diode VD4; the normally open contact of the relay is connected in series with the inductance L1 to form the series branch; further, the cell physiotherapy instrument also includes a step-down rectifier circuit and a second power conversion circuit; Both the input end of the first power conversion circuit and the input end of the second power conversion circuit are connected to the output end of the step-down rectifier circuit; DC power supply V2; further, the square wave oscillation circuit includes: capacitor Ct, capacitor C6, capacitor C7, resistor Rt2, resistor R6, resistor R7, resistor R8, resistor R9, resistor R10, potentiometer Rp1, monostable multiple Resonant oscillator U3, transformer T2, MOS tube VT1 and MOS tube VT2; the monostable multivibrator U3 adopts a CD4047 chip; the pin C of the monostable multivibrator U3 passes through the capacitor Ct connected in series Connect the pin R of the monostable multivibrator U3 with the resistor Rt2; the series connection point of the capacitor Ct and the resistor Rt2 is connected with the monostable multivibrator The pin RCCOMMON of U3 is connected; the pin of the monostable multivibrator U3 The pin ASTABLE, the pin -TRIGGER and the pin Vdd are connected to the positive pole of the DC power supply V2 via the switch S2; the pin Vss, the pin +TRIGGER, the pin EXTRESET and the pin RETRIGGER of the monostable multivibrator U3 Connect the DC power supply V2 ground; the pin Q of the monostable multivibrator U3 is connected to the gate of the MOS transistor VT2 through a resistor R7; the pin of the monostable multivibrator U3 Connect the gate of the MOS transistor VT1 through a resistor R6; the source of the MOS transistor VT1 is connected to the ground of the DC power supply V2 through a resistor R8; the source of the MOS transistor VT2 is connected to the ground of the DC power supply V2 through a resistor R9; the primary coil of the transformer T2 It has an intermediate tap, which is connected to the positive pole of the DC power supply V2 through the switch S2; the drain of the MOS transistor VT1 is connected to one end of the primary coil of the transformer T2, and the drain of the MOS transistor VT2 is connected to the other end of the primary coil of the transformer T2; the capacitor C6 and Capacitors C7 are connected in parallel to both ends of the secondary coil of the transformer T2; one end of the resistor R10 is connected to one end of the secondary coil of the transformer T2, and the other end of the resistor R10 is connected to the first electrode probe and the adjustable end of the potentiometer Rp1; One fixed end of the potentiometer Rp1 is connected to the other end of the secondary coil of the transformer T2 and the second electrode probe; further, the square wave oscillation circuit includes: resistor Rb1, resistor Rb2, resistor Rb3, resistor Rb4, resistor Rc1, Resistor Rc2, resistor R11, potentiometer Rp2, capacitor C8, capacitor C9, transistor VT3, transistor VT4, transistor VT5, transistor VT6, transformer T3 and switch S3; said resistor Rc1, resistor Rb1, resistor Rb2 and resistor Rc2 pass through The switch S3 is connected to the positive pole of the DC power supply V2; the other end of the resistor Rc1 is connected to the collector of the transistor VT5, and the base of the transistor VT4 is connected through the resistor Rb4; the other end of the resistor Rc2 is connected to the collector of the transistor VT6, and the base of the transistor VT3 is connected through the resistor Rb3 pole; the other end of the resistor Rb1 is connected to the base of the triode VT6, and connected to the resistor Rc1 through the capacitor C8; the other end of the resistor Rb2 is connected to the base of the triode VT5, and connected to the resistor Rc2 through the capacitor C9; the emitter of the triode VT3, the triode The VT4 emitter, the triode VT5 emitter and the triode VT6 emitter are all connected to the ground of the DC power supply V2; the primary coil of the transformer T3 has a middle tap, and the middle tap is connected to the positive pole of the DC power supply V2 via the switch S3; the collector of the triode VT3 is connected to the transformer One end of the primary coil of T3, the collector of the triode VT4 is connected to the other end of the primary coil of the transformer T3; one end of the resistor R11 is connected to one end of the secondary coil of the transformer T3, and the other end of the resistor R11 is connected to the first electrode probe and potentiometer Rp2. Adjusting terminal; one fixed end of the potentiometer Rp2 is connected to the other end of the secondary coil of the transformer T3 and the second electrode probe; further, the square wave oscillating circuit also includes an energization indicating circuit; the energizing indicating circuit includes a resistor R14 , resistor R15, triode VT7 and light-emitting diode VD7; the collector of the triode VT7 is connected to the positive pole of the DC power supply V2 through the series-connected light-emitting diode VD7 and resistor R15; the emitter of the triode VT7 is connected to the ground of the DC power supply V2; the base of the triode VT7 Pole is connected with the collector of triode VT6 through resistor R14; further, the step-down rectifier circuit It includes a transformer T1 and a rectifier bridge B1; the primary of the transformer T1 is connected to the AC grid; the secondary of the transformer T1 is connected to the input terminal of the rectifier bridge B1; the first power conversion circuit includes a capacitor C1, a capacitor C2, and a capacitor C3 , three-terminal voltage regulator U1, resistor R1, resistor R2, diode VD1, diode VD2 and voltage regulator tube VD3; the capacitor C1 and capacitor C2 are connected in parallel with each other at the output end of the rectifier bridge B1; the three-terminal regulator The device U1 adopts a chip LM317; the voltage input pin Vin of the three-terminal voltage regulator U1 is connected to the positive output terminal of the rectifier bridge B1; the voltage adjustment pin Adj of the three-terminal voltage regulator U1 is connected to the The rectifier bridge B1 outputs the negative terminal; the voltage output pin Vout of the three-terminal regulator U1 is connected to the output negative terminal of the rectifier bridge B1 through the resistance R1 and the capacitor C3 connected in series; the series connection point of the resistor R1 and the capacitor C3 is connected to the The voltage regulation pin Adj of the three-terminal regulator U1 is connected; the anode of the diode VD2 and the cathode of the voltage regulator tube VD3 are connected to the voltage output pin Vout of the three-terminal regulator U1, and the cathode of the diode VD2 is connected to the The voltage input pin Vin of the three-terminal voltage regulator U1; the anode of the voltage regulator tube VD3 is used as the positive pole of the DC power supply V1; the output negative terminal of the rectifier bridge B1 is used as the ground of the DC power supply V1; the voltage of the three-terminal voltage regulator U1 The output pin Vout and the negative output terminal of the rectifier bridge B1 are used as the output terminal of the first power conversion circuit; further, the second power conversion circuit includes a capacitor C11, a capacitor C12, a capacitor C13, a three-terminal regulator U4, and a resistor R12 , resistor R13, diode VD4 and diode VD5; the capacitor C11 is connected in parallel with the output terminal of the rectifier bridge B1; the three-terminal regulator U4 adopts a chip LM317; the voltage input pin Vin of the three-terminal regulator U4 It is connected with the positive output terminal of the rectifier bridge B1; the voltage regulation pin Adj of the three-terminal voltage stabilizer U4 is connected to the negative output terminal of the rectifier bridge B1 through a resistor R12; the voltage output pin of the three-terminal voltage stabilizer U4 Vout is connected to the output negative terminal of the rectifier bridge B1 through the resistor R13 and the capacitor C12 connected in series; the series connection point of the resistor R13 and the capacitor C12 is connected to the voltage regulation pin Adj of the three-terminal regulator U4; the anode of the diode VD5 Connect the voltage output pin Vout of the three-terminal voltage stabilizer U4, the cathode of the diode VD5 is connected to the voltage input pin Vin of the three-terminal voltage stabilizer U4; the voltage output pin Vout of the three-terminal voltage stabilizer U4 is used as a direct current The positive pole of the power supply V2; the negative output terminal of the rectifier bridge B1 is used as the ground of the DC power supply V2; further, the first electrode probe adopts a sheet-shaped electrode structure; the second electrode probe adopts a rod-shaped electrode structure.

Fig. 8 shows a simplified schematic diagram of the pulsed magnetic field generation circuit of the present invention, in essence, it is an electromagnetic conversion circuit, U is the output voltage of the first power conversion circuit, and is connected according to a certain frequency through the controllable switch K1 Or cut off the electromagnetic conversion circuit; when the controllable switch K1 is disconnected, the DC power supply U charges the capacitor C4, and the capacitor C4 is full of electric field energy; when the controllable switch K1 is closed, the capacitor C4 discharges the inductor L1, and with the discharge of the capacitor C4 , the magnetic field energy on the inductor L1 gradually increases, thereby realizing the electromagnetic conversion function. When the controllable switch K1 is closed, the magnetic induction intensity B can reach a maximum value, and when the controllable switch K1 is opened, the magnetic induction intensity B drops to a minimum value, thereby forming a pulsed magnetic field.

Fig. 5 shows the schematic diagram of step-down rectification circuit of the present invention, wherein M, N are the output ends of step-down rectification circuit; Transformer T1 of the present invention can complete the step-down conversion of AC 220V and AC 24V, the first power supply The voltage output by the conversion circuit can reach 30V; the triode VT0 adopts 2N2222A; the pulse frequency output by the switch control circuit is 1.1Hz; the capacity of the capacitor C4 is 1000μF; the voltage regulator tube VD3 adopts 1N4745A; The capacity is 100μF; the resistance value of resistor Rt1 is 4.7kΩ; the capacity of capacitor Ct is 100nF; the resistance value of resistor Rt2 is 47kΩ; MOS tube VT1 and MOS tube VT2 use IN60; VT4 uses 2N2222A.

Fig. 2 shows the circuit schematic diagram of the pulsed magnetic field generating circuit of the present invention, the first power conversion circuit outputs a certain DC voltage to charge the capacitor C4 after step-down conversion, rectification filtering and DC voltage stabilization, and the pulsed magnetic field of the present invention The generation circuit includes a switch control circuit, which is essentially an oscillator, using an inverter, such as chip CD4069, and the oscillation frequency is $f_1=\frac{1}{2.13\×Rt1\×C5}=\frac{1}{2.13\×4.7\×{10}^3\×100\×{10}^{-6}}=1.11hz,$ Here, the resistance value of the timing resistor Rt1 should not be too large, and the timing capacitor C5 should be large enough, otherwise the circuit is not easy to oscillate. The capacity of the capacitor C5 of the present invention is 100 μF, and its waveform is good; if the inductor L1 is directly connected to the square wave oscillation circuit The push-pull power amplifier stage has a maximum efficiency of 60%, which will inevitably increase the capacity of the power transformer, and it is necessary to select a high-power push-pull transistor or a field effect transistor, thereby increasing the volume and cost of the equipment; the present invention uses a switch The control circuit skillfully utilizes the controllable switch K1 to turn on and off alternately. Correspondingly, the DC power supply charges the capacitor and the capacitor discharges the inductance. The magnetic induction intensity changes alternately, and a pulsed magnetic field is obtained. The circuit is simple and feasible, greatly The volume and cost of the physical therapy instrument are reduced; the inductance L can be designed as a physical therapy probe, and the interior includes a ferrite soft magnetic core and an enameled wire wound on the magnetic core.

Figure 9 shows the time-domain waveform diagram of an ideal square wave, and the time-domain expression of the square wave is expanded by Fourier series to obtain $x\left(t\right)=\frac{4A}{\mathrm{\π}}\left({\mathrm{sin\ω}}_{0}t+\frac{1}{3}\sin 3{\mathrm{\ω}}_{0}t+\frac{1}{5}\sin 5{\mathrm{\ω}}_{0}t+\frac{1}{7}\sin 7{\mathrm{\ω}}_{0}t+\frac{1}{9}\sin 9{\mathrm{\ω}}_{0}t...\right),$ Then the amplitude spectrum of the square wave is obtained. Figure 10 shows the amplitude spectrum of the ideal square wave. Facts have proved that the amplitude of the triangle wave's amplitude spectrum decays quickly, while the amplitude of the square wave decays relatively weakly. From the energy attenuation Angle, choose square wave over triangular wave and other waveforms.

Fig. 3 is the circuit schematic diagram of the square wave oscillating circuit of embodiment 1 of the present invention, and this embodiment adopts monostable multivibrator, as chip CD4047, the square wave signal produced by the square wave oscillating circuit of embodiment 1 and Figure 9 shows an ideal square wave very close to its frequency And then setting the different resistance values of resistor Rt2, just can obtain the pulse square wave of different frequency, thereby adapt to different treatment needs; The circuit is composed of multiple discrete components, and there is a certain difference between the generated square wave and the ideal square wave, but the cost is low and does not affect the therapeutic effect; the different square wave oscillation circuits of Embodiment 1 and Embodiment 2 can be used to form two kinds of The cell physiotherapy instrument based on pulsed magnetic field and pulsed electric wave of the model, such as type I, type II; the present invention can integrate the pulsed magnetic field generating circuit and the square wave oscillation circuit of embodiment 1 or embodiment 2 into an instrument box, the first The electrode probe and the second electrode probe are connected to the meter box through the connector; the first electrode probe and the second electrode probe can be made of materials such as conductive rubber, and can also be made of metal materials. Specifically, the first electrode probe can be The sheet electrode structure is adopted, and the second electrode probe can adopt a rod electrode structure, which is more conducive to pulse electric wave stimulation treatment through this electrode structure, and is flexible and convenient to use; in addition, the cell physiotherapy instrument of the present invention can also be used for the detection of acupoints. When the acupoint is detected, the stimulation intensity felt by the human body is significantly higher than that felt when the acupoint is not detected.

When using the cell physiotherapy instrument of the present invention, the inductance L (which can be packaged in the physiotherapy probe) is contacted with the human body, and the first electrode probe and the second electrode probe are respectively in contact with two parts of the site to be treated. The cell physiotherapy instrument is connected to the AC power grid and starts to work. The pulsed magnetic field generated by the cell physiotherapy instrument and the output pulsed square wave act on the human body, thereby conveniently completing the magnetic therapy and pulse electric wave stimulation treatment on the human body. The circuit structure of the present invention is simple, and the hardware The cost is low, and it is suitable for wide promotion in the field of physiotherapy.

The above is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto, any person familiar with the technical field within the technical scope disclosed in the present invention, according to the technical solution of the present invention Any equivalent replacement or change of the inventive concepts thereof shall fall within the protection scope of the present invention.

Claims (9)

1., based on a cell physiotherapy table for pulsed magnetic field and pulse radio, it is characterized in that described cell physiotherapy table comprises:

Pulsed magnetic field produces circuit;

Square-wave oscillator circuit; Frequency and the dutycycle of the square-wave signal of described square-wave oscillator circuit output are adjustable;

The first electrode probe be connected with described square-wave oscillator circuit outfan and the second electrode probe;

First power converting circuit;

Described pulsed magnetic field produces circuit and comprises: electric capacity C4, inductance L 1, gate-controlled switch K1 and the ON-OFF control circuit for controlling described gate-controlled switch K1 disconnection and connection; Described electric capacity C4 is also connected in described first power converting circuit outfan; Described gate-controlled switch K1 and described inductance L 1 form series arm, and this series arm and described electric capacity C4 are in parallel; When described gate-controlled switch K1 disconnects, the first power converting circuit charges to electric capacity C4, and when described gate-controlled switch K1 connects, described electric capacity C4 discharges to inductance L 1.

2. the cell physiotherapy table based on pulsed magnetic field and pulse radio according to claim 1, is characterized in that described gate-controlled switch K1 adopts relay; Described first power converting circuit can obtain the DC source V1 powered to described ON-OFF control circuit; Described ON-OFF control circuit comprises: phase inverter U2, resistance R5, electric capacity C5, resistance Rt1, resistance R4, audion VT0 and diode VD4; Described phase inverter U2 adopts CD4069 chip; The pin 1A of described phase inverter U2 is connected the pin 2Y of described phase inverter U2 with electric capacity C5 via the resistance R5 mutually connected; The pin 2Y of described phase inverter U2 is connected with pin 6A with pin 3A, the pin 4A of described phase inverter U2, pin 5A; The serial connection point of described resistance R5 and electric capacity C5 is connected pin 3Y, the pin 4Y of described phase inverter U2, pin 5Y, pin 6Y and resistance R4 one end by resistance Rt1; The resistance R4 other end connects the base stage of described audion VTO; The emitter stage of described audion VTO connects DC source V1 ground; The colelctor electrode of described audion VTO connects DC source V1 positive pole via diode VD4; Coil and the described diode VD4 of described relay are in parallel; The normally opened contact of described relay and inductance L 1 are in series and form described series arm.

3. the cell physiotherapy table based on pulsed magnetic field and pulse radio according to claim 1 and 2, is characterized in that described cell physiotherapy table also comprises step-down rectifying circuit and second source translation circuit; Described first power converting circuit input is all connected with described step-down rectifying circuit outfan with described second source translation circuit input; Described second source translation circuit can convert the DC source V2 obtaining powering to described square-wave oscillator circuit.

4. the cell physiotherapy table based on pulsed magnetic field and pulse radio according to claim 3, is characterized in that described square-wave oscillator circuit comprises: electric capacity Ct, electric capacity C6, electric capacity C7, resistance Rt2, resistance R6, resistance R7, resistance R8, resistance R9, resistance R10, potentiometer Rp1, one-shot multivibrator U3, transformator T2, metal-oxide-semiconductor VT1 and metal-oxide-semiconductor VT2; Described one-shot multivibrator U3 adopts CD4047 chip; The pin C of described one-shot multivibrator U3 is connected the pin R of one-shot multivibrator U3 with resistance Rt2 through the electric capacity Ct be in series; Electric capacity Ct is connected with the pin RCCOMMON of one-shot multivibrator U3 with the serial connection point of resistance Rt2; The pin of described one-shot multivibrator U3 pin ASTABLE, pin-TRIGGER are connected described DC source V2 positive pole with pin Vdd via switch S 2; Pin Vss, the pin+TRIGGER of described one-shot multivibrator U3, pin EXTRESET are connected DC source V2 ground with pin RETRIGGER; The pin Q of described one-shot multivibrator U3 connects described metal-oxide-semiconductor VT2 grid by resistance R7; The pin of described one-shot multivibrator U3 described metal-oxide-semiconductor VT1 grid is connected by resistance R6; Described metal-oxide-semiconductor VT1 source electrode connects DC source V2 ground by resistance R8; Described metal-oxide-semiconductor VT2 source electrode connects DC source V2 ground by resistance R9; Described transformator T2 primary coil has centre tap, and this centre tap connects DC source V2 positive pole via switch S 2; Described metal-oxide-semiconductor VT1 drain electrode connection transformer T2 primary coil one end, the described metal-oxide-semiconductor VT2 drain electrode connection transformer T2 primary coil other end; Described electric capacity C6 and electric capacity C7 is parallel with one another is connected on described transformator T2 secondary coil two ends; Described resistance R10 one end is connected with described transformator T2 secondary coil one end, and the resistance R10 other end connects the first electrode probe and the adjustable end of potentiometer Rp1; Described potentiometer Rp1 mono-stiff end connects the described transformator T2 secondary coil other end and the second electrode probe.

5. the cell physiotherapy table based on pulsed magnetic field and pulse radio according to claim 3, is characterized in that described square-wave oscillator circuit comprises: resistance Rb1, resistance Rb2, resistance Rb3, resistance Rb4, resistance Rc1, resistance Rc2, resistance R11, potentiometer Rp2, electric capacity C8, electric capacity C9, audion VT3, audion VT4, audion VT5, audion VT6, transformator T3 and switch S 3; Described resistance Rc1, resistance Rb1, resistance Rb2 are connected DC source V2 positive pole with the equal one end of resistance Rc2 by switch S 3; Described resistance Rc1 other end connecting triode VT5 colelctor electrode, and by resistance Rb4 connecting triode VT4 base stage; Described resistance Rc2 other end connecting triode VT6 colelctor electrode, and by resistance Rb3 connecting triode VT3 base stage; Described resistance Rb1 other end connecting triode VT6 base stage, and by electric capacity C8 contact resistance Rc1; Described resistance Rb2 other end connecting triode VT5 base stage, and by electric capacity C9 contact resistance Rc2; Described audion VT3 emitter stage, audion VT4 emitter stage, audion VT5 emitter stage and audion VT6 emitter stage are all connected DC source V2 ground; Described transformator T3 primary coil has centre tap, and this centre tap connects DC source V2 positive pole via switch S 3; Described audion VT3 colelctor electrode connection transformer T3 primary coil one end, the described audion VT4 colelctor electrode connection transformer T3 primary coil other end; Described resistance R11 one end is connected with described transformator T3 secondary coil one end, and the resistance R11 other end connects the first electrode probe and the adjustable end of potentiometer Rp2; Described potentiometer Rp2 mono-stiff end connects the described transformator T3 secondary coil other end and the second electrode probe.

6. the cell physiotherapy table based on pulsed magnetic field and pulse radio according to claim 5, is characterized in that described square-wave oscillator circuit also comprises energising indicating circuit; Described energising indicating circuit comprises resistance R14, resistance R15, audion VT7 and light emitting diode VD7; Described audion VT7 colelctor electrode is connected DC source V2 positive pole through the light emitting diode VD7 be in series with resistance R15; Described audion VT7 emitter stage connects DC source V2 ground; Described audion VT7 base stage is connected with audion VT6 colelctor electrode by resistance R14.

7. the cell physiotherapy table based on pulsed magnetic field and pulse radio according to claim 3, is characterized in that described step-down rectifying circuit comprises transformator T1 and rectifier bridge B1; Described transformator T1 is elementary to be connected with AC network; Described transformator T1 level connects described rectifier bridge B1 input; Described first power converting circuit comprises electric capacity C1, electric capacity C2, electric capacity C3, three terminal regulator U1, resistance R1, resistance R2, diode VD1, diode VD2 and stabilivolt VD3; Described electric capacity C1 and electric capacity C2 is parallel with one another is connected on described rectifier bridge B1 outfan; Described three terminal regulator U1 adopts chip LM317; The voltage input pin Vin of described three terminal regulator U1 is connected with described rectifier bridge B1 output plus terminal; The voltage-regulation foot Adj of described three terminal regulator U1 connects described rectifier bridge B1 by resistance R2 and exports negative terminal; The voltage output pin Vout of described three terminal regulator U1 is connected rectifier bridge B1 through the resistance R1 of series connection mutually and exports negative terminal with electric capacity C3; Described resistance R1 is connected with the voltage-regulation foot Adj of described three terminal regulator U1 with the serial connection point of electric capacity C3; Described diode VD2 anode is all connected the voltage output pin Vout of described three terminal regulator U1 with described stabilivolt VD3 negative electrode, and described diode VD2 negative electrode connects the voltage input pin Vin of described three terminal regulator U1; Described stabilivolt VD3 anode is as DC source V1 positive pole; Described rectifier bridge B1 exports negative terminal as DC source V1 ground; The voltage output pin Vout of described three terminal regulator U1 and described rectifier bridge B1 exports negative terminal as the first power converting circuit outfan.

8. the cell physiotherapy table based on pulsed magnetic field and pulse radio according to claim 7, is characterized in that described second source translation circuit comprises electric capacity C11, electric capacity C12, electric capacity C13, three terminal regulator U4, resistance R12, resistance R13, diode VD4 and diode VD5; Described electric capacity C11 and described rectifier bridge B1 outfan are in parallel; Described three terminal regulator U4 adopts chip LM317; The voltage input pin Vin of described three terminal regulator U4 is connected with described rectifier bridge B1 output plus terminal; The voltage-regulation foot Adj of described three terminal regulator U4 connects described rectifier bridge B1 by resistance R12 and exports negative terminal; The voltage output pin Vout of described three terminal regulator U4 is connected rectifier bridge B1 through the resistance R13 of series connection mutually and exports negative terminal with electric capacity C12; Described resistance R13 is connected with the voltage-regulation foot Adj of described three terminal regulator U4 with the serial connection point of electric capacity C12; Described diode VD5 anode connects the voltage output pin Vout of described three terminal regulator U4, and described diode VD5 negative electrode connects the voltage input pin Vin of described three terminal regulator U4; The voltage output pin Vout of described three terminal regulator U4 is as DC source V2 positive pole; Described rectifier bridge B1 exports negative terminal as DC source V2 ground.

9. the cell physiotherapy table based on pulsed magnetic field and pulse radio according to claim 1, is characterized in that described first electrode probe adopts pellet electrode structure; Described second electrode probe adopts stick electrode structure.