CN115702978A - Electrotherapy apparatus - Google Patents

Abstract

The present invention provides an electrotherapy apparatus including: host computer, preoperative electrode area and postoperative electrode area, preoperative electrode area with postoperative electrode area all includes: the electrode strip comprises an electrode strip main body and two electrode plates arranged on the electrode strip main body, wherein the electrode plates are arranged on one surface of the electrode strip main body, which is in contact with the skin of a body surface; when the host is electrically connected with the two electrode slices of the preoperative electrode strip, the electrotherapy equipment works in a preoperative mode, and at the moment, the host releases preoperative electrostimulation pulses through the two electrode slices of the preoperative electrode strip; when the host computer with two electrode slice electrical connection of postoperative electrode area, electrotherapy equipment work in postoperative mode, at this moment, the host computer passes through two electrode slices of postoperative electrode area release postoperative electrical stimulation pulse. The electrotherapy equipment provided by the invention is used for eliminating limb swelling before operation and helping muscle recovery after operation.

Description

Electrotherapy apparatus

Technical Field

The invention belongs to the field of electrotherapy equipment in physical therapy equipment, and particularly relates to electrotherapy equipment.

Background

In the twenty-first century, the orthopedic diagnosis and treatment level in China is rapidly developed, more and more people can obtain satisfactory operations, but the orthopedic diagnosis and treatment level is inconsistent with the satisfied operations, and the relatively lagged management level in the orthopedic perioperative period greatly influences the treatment and rehabilitation of the limb functions of patients.

The orthopaedics perioperative period is a whole process around the orthopaedics operation, starting from the decision of a patient to receive operation treatment, and going to the operation treatment until the basic recovery, including a period of time before, during and after the operation. The success of the operation depends not only on the operation itself, but also is considerably related to the preoperative and postoperative management of these perioperative links.

In trauma orthopedics, limb swelling is one of the important factors affecting perioperative treatment and recovery of fracture patients, and is expressed as follows:

1) The patient with excessive swelling before the operation can not receive the operation as early as possible, and the best operation time is missed;

2) Patients with preoperative lower limb fracture often need traction braking;

3) Patients with severe swelling can block peripheral arteriovenous vessels to induce muscle ischemic necrosis and have a complication of the periosteum syndrome, and if the patients are not treated in time, the patients have amputation risks; if the range of muscle necrosis is too large, absorption of various toxins generated by myolysis necrosis can cause liver and kidney dysfunction, and death risk occurs;

4) Excessive swelling after surgery is detrimental to wound healing;

5) The postoperative patient can cause slow local blood flow due to pain reduction of the activity of the affected limb and the like, deep Venous Thrombosis (DVT) is induced by local vascular injury or traumatic stress response and the like, so that the risks of cardiovascular and cerebrovascular accidents and Pulmonary Embolism (PE) in the perioperative period are obviously increased, and the life safety of the patient is seriously threatened.

Meanwhile, disuse muscular atrophy is one of important factors which plague the clinical functional rehabilitation effect after orthopedic treatment, and is expressed as follows:

1) The pathological changes are that the cross section area of muscle fiber is reduced, the muscle fiber is contracture in the longitudinal direction, the ductility of muscle is influenced, and the elasticity of muscle is deteriorated;

2) Because the muscle does not have enough movement for a long time, the muscle mass (especially the lower limb part) becomes thin, the muscle is looser when being tightened and relaxed than before the disease, the force is smaller, and the same action is difficult to be completed or even can not be completed.

Disclosure of Invention

In view of the above-mentioned drawbacks of the prior art, it is an object of the present invention to provide an electrotherapy apparatus for eliminating limb swelling before an operation and assisting muscle rehabilitation after an operation.

To achieve the above and other related objects, the present invention provides an electrotherapy apparatus including:

host computer, preoperative electrode area and postoperative electrode area, preoperative electrode area with postoperative electrode area all includes: the electrode strip comprises an electrode strip main body and two electrode plates arranged on the electrode strip main body, wherein the electrode plates are arranged on one surface of the electrode strip main body, which is in contact with the skin of a body surface;

when the host is electrically connected with the two electrode slices of the preoperative electrode strip, the electrotherapy equipment works in a preoperative mode, and at the moment, the host releases preoperative electrostimulation pulses through the two electrode slices of the preoperative electrode strip;

when the host computer with two electrode slice electrical connection of postoperative electrode area, electrotherapy equipment work in postoperative mode, at this moment, the host computer passes through two electrode slices of postoperative electrode area release postoperative electrical stimulation pulse.

Optionally, the preoperative electrode strip and the postoperative electrode strip each further comprise: the host mounting seat is arranged on one surface of the electrode belt main body, which is far away from the body surface skin area; the main machine is installed on the preoperative electrode strip or the postoperative electrode strip through the main machine installation seat and is electrically connected with the two electrode slices of the preoperative electrode strip or the two electrode slices of the postoperative electrode strip.

Optionally, for the preoperative electrode strip, the host mounting seat is arranged at one end of the electrode strip main body, and the two electrode slices are arranged on the same side of the host mounting seat; for the postoperative electrode strip, the main machine mounting seat is arranged in the middle of the electrode strip main body, and the two electrode plates are arranged on two sides of the main machine mounting seat.

Optionally, an electrode belt installation groove is formed in the main machine, and the preoperative electrode belt or the postoperative electrode belt is installed on the main machine through the electrode belt installation groove;

when the preoperative electrode strip is installed on the main machine through the electrode strip installation groove, the main machine is electrically connected with the two electrode plates of the preoperative electrode strip;

when the postoperative electrode strip passes through the electrode strip mounting groove and is installed on the host computer, the host computer is electrically connected with the two electrode slices of the postoperative electrode strip.

Optionally, when the electrotherapy apparatus operates in the preoperative mode, the wearing position of the electrotherapy apparatus is a superficial skin area of tibialis anterior and peroneal short muscles corresponding to a connecting line of a peroneal long and short muscle peroneal head attachment part and a tibial tubercle of the knee joint, wherein a negative electrode plate of the two electrode plates is located at the peroneal long and short muscle peroneal head attachment part, a positive electrode plate of the two electrode plates is located at the tibial attachment part of the tibialis anterior muscle, and the stimulation object is a muscle nerve in the connecting line area of the tibial tubercle and the peroneal long and short muscle peroneal head attachment part; when the electrotherapy device works in a postoperative mode, the wearing part of the electrotherapy device is a body surface skin area of a tibial crest, wherein the two electrode plates are respectively positioned at two sides of the abdomen of the tibialis anterior muscle, and the stimulation object is the tibialis anterior muscle.

Optionally, the waveform of the preoperative electrical stimulation pulse comprises a unipolar square wave or an asymmetric bipolar pulse, wherein the frequency of the unipolar square wave and the frequency of the asymmetric bipolar pulse are both between 0.1Hz and 10Hz, the maximum pulse voltage is both between 40V and 120V, the maximum pulse current is both between 20mA and 40mA, and the pulse width is both between 100 μ s and 1000 μ s; the waveform of the postoperative electrical stimulation pulse comprises a symmetrical bipolar square wave or an asymmetrical bipolar pulse, wherein the frequencies of the symmetrical bipolar square wave and the asymmetrical bipolar pulse are both between 5Hz and 150Hz, the maximum pulse voltage is both between 40V and 120V, the maximum pulse current is both between 20mA and 40mA, and the pulse width is both between 100 mus and 1000 mus.

The present invention also provides an electrotherapy apparatus including:

host computer and sharing electrode strip, sharing electrode strip includes: the electrode strip comprises an electrode strip main body and at least three electrode plates arranged on the electrode strip main body, wherein the electrode plates are arranged on one surface of the electrode strip main body, which is in contact with body surface skin; wherein the electrode slice comprises a preoperative electrode slice and a postoperative electrode slice;

when the host selects to enter a preoperative mode, the electrotherapy equipment works in the preoperative mode, the host is electrically connected with a preoperative electrode plate of the common electrode strip, and preoperative electric stimulation pulses are released through the preoperative electrode plate;

when the host computer selects to enter the postoperative mode, the electrotherapy device works in the postoperative mode, and the host computer is electrically connected with the postoperative electrode slice of the common electrode strip and releases postoperative electrical stimulation pulse through the postoperative electrode slice.

Optionally, when the number of the electrode slices is three, one of the three electrode slices is a common electrode slice which forms a preoperative electrode slice together with one of the other two electrode slices and forms a postoperative electrode slice together with the other two electrode slices; when the number of the electrode plates is four, two of the four electrode plates are preoperative electrode plates, and the other two electrode plates are postoperative electrode plates.

Optionally, when the electrotherapy apparatus operates in the preoperative mode, the wearing position of the electrotherapy apparatus is a superficial skin area of tibialis anterior and peroneal short muscles corresponding to a connecting line of a peroneal long and short muscle peroneal head attachment part and a tibial tubercle of the knee joint, wherein a negative electrode plate of the two electrode plates is located at the peroneal long and short muscle peroneal head attachment part, a positive electrode plate of the two electrode plates is located at the tibial attachment part of the tibialis anterior muscle, and the stimulation object is a muscle nerve in the connecting line area of the tibial tubercle and the peroneal long and short muscle peroneal head attachment part; when the electrotherapy device works in a postoperative mode, the wearing part of the electrotherapy device is a body surface skin area of a tibial crest, wherein the two electrode plates are respectively positioned at two sides of the abdomen of the tibialis anterior muscle, and the stimulation object is the tibialis anterior muscle.

Optionally, the waveform of the preoperative electrical stimulation pulse comprises a unipolar square wave or an asymmetric bipolar pulse, wherein the frequency of the unipolar square wave and the frequency of the asymmetric bipolar pulse are both between 0.1Hz and 10Hz, the maximum pulse voltage is both between 40V and 120V, the maximum pulse current is both between 20mA and 40mA, and the pulse width is both between 100 μ s and 1000 μ s; the waveform of the postoperative electrical stimulation pulse comprises a symmetrical bipolar square wave or an asymmetrical bipolar pulse, wherein the frequencies of the symmetrical bipolar square wave and the asymmetrical bipolar pulse are both between 5Hz and 150Hz, the maximum pulse voltage is both between 40V and 120V, the maximum pulse current is both between 20mA and 40mA, and the pulse width is both between 100 mus and 1000 mus.

As described above, an electrotherapy apparatus according to the present invention can support two modes of a preoperative mode capable of promoting limb swelling elimination and achieving the purpose of preventing deep vein thrombosis and a postoperative mode capable of helping muscle recovery and achieving the purpose of preventing disuse muscle atrophy; moreover, the whole electrotherapy equipment is integrally designed, is small and exquisite in product form, convenient to wear, not easy to mix positive and negative electrode plates and stick the electrode plates to wrong positions, and has very important significance for improving the treatment and rehabilitation management level of the orthopedic perioperative period of the trauma.

Drawings

Fig. 1 is a schematic structural diagram of an electrotherapy apparatus according to an embodiment of the present invention.

Fig. 2 is a circuit diagram of a host in the electrotherapy apparatus according to an embodiment of the present invention.

Fig. 3 is a waveform diagram of an electrical stimulation pulse generated by the electrotherapy apparatus according to one embodiment of the present invention, wherein (a) is a waveform diagram of a unipolar square wave, (b) is a waveform diagram of a symmetric bipolar square wave, and (c) is a waveform diagram of an asymmetric bipolar pulse.

Fig. 4 is a schematic structural view illustrating a main unit and a preoperative electrode strip of the electrotherapy apparatus according to the embodiment of the present invention.

Fig. 5 is a view showing a wearing position of the electrotherapy apparatus according to the embodiment of the present invention in the pre-operation mode.

Fig. 6 is a schematic structural view showing the installation of a main machine and a post-operation electrode strip in the electrotherapy device according to the first embodiment of the present invention.

Fig. 7 is a view showing a wearing position of the electrotherapy apparatus according to the first embodiment of the present invention in the postoperative mode.

FIG. 8 is a schematic structural diagram of an electrotherapy apparatus according to a second embodiment of the present invention.

Fig. 9 is a schematic structural view of an electrotherapy apparatus according to a third embodiment of the present invention.

Fig. 10 is a circuit diagram of a host in the electrotherapy apparatus according to the third embodiment of the present invention.

Description of the element reference numerals

100. Main unit

101. Main frame housing 102 battery unit

103. Micro-control unit 104 boost unit

105. Pulse output control unit 106 stimulation unit

107. First current feedback unit 108 second current feedback unit

109. Electrode belt mounting groove

200. Preoperative electrode belt

201. Electrode strip main body 202a, 202b electrode sheet

203. Host mounting seat

300. Postoperative electrode belt

301. Electrode strip main body 302a, 302b electrode slice

303. Host mounting seat

400a, 400b, 400c first electrical connector

500a, 500b, 500c second electrical connector

600. Magnet

700. Iron sheet

100' host

101 'Main machine case 102' Battery cell

103 'micro control unit 104' booster unit

105 'pulse output control unit 106' stimulation unit

107 'first current feedback unit 108' second current feedback unit

200' common electrode strip

201 'electrode strip body 202a', 202b ', 202c' electrode sheet

300a ', 300b ', 300c ' electrical connector

Detailed Description

The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention.

Please refer to fig. 1 to 10. It should be noted that the drawings provided in the present embodiment are only schematic and illustrate the basic idea of the present invention, and although the drawings only show the components related to the present invention and are not drawn according to the number, shape and size of the components in actual implementation, the form, quantity and proportion of the components in actual implementation may be changed arbitrarily, and the layout of the components may be more complicated.

Example one

As shown in fig. 1, the present embodiment provides an electrotherapy apparatus including: host computer 100, preoperative electrode strip 200 and postoperative electrode strip 300, preoperative electrode strip 200 with postoperative electrode strip 300 all includes: the electrode strip comprises an electrode strip main body 201/301 and two electrode plates 202a/302a and 202b/302b arranged on the electrode strip main body 201/301, wherein the electrode plates 202a/302a and 202b/302b are arranged on one surface of the electrode strip main body 201/301 contacting with body surface skin;

when the main unit 100 is electrically connected to the two electrode pads 202a and 202b of the preoperative electrode strip 200, the electrotherapy apparatus operates in a preoperative mode, and at this time, the main unit 100 releases preoperative electrical stimulation pulses through the two electrode pads 202a and 202b of the preoperative electrode strip 200;

when the main unit 100 is electrically connected to the two electrode pads 302a, 302b of the post-operation electrode strip 300, the electrotherapy apparatus operates in the post-operation mode, and at this time, the main unit 100 releases post-operation electrical stimulation pulses through the two electrode pads 302a, 302b of the post-operation electrode strip 300.

Specifically, as shown in fig. 1 and 2, the host 100 includes: the electric energy saving device comprises a main machine shell 101, and a battery unit 102, a micro control unit 103, a voltage boosting unit 104, a pulse output control unit 105, a stimulation unit 106, a first current feedback unit 107 and a second current feedback unit 108 which are arranged in the main machine shell 101, wherein the voltage boosting unit 104 boosts a battery voltage provided by the battery unit 102 to a voltage required by electrotherapy, the pulse output control unit 105 converts a low-voltage control signal generated by the micro control unit 103 into a high-voltage control signal, the stimulation unit 106 performs output control on the voltage required by electrotherapy according to the high-voltage control signal so as to release preoperative electric stimulation pulses through two electrode plates 202a and 202b of the preoperative electrode belt 200 or postoperative electric stimulation pulses through two electrode plates 302a and 302b of the postoperative electrode belt 300, the first current feedback unit 107 samples output pulses of an electric circuit where the first current feedback unit is located and generates a first feedback signal, the second current feedback unit 108 samples output pulses of the electric circuit where the second current feedback unit is located and generates a second feedback signal, and the micro control unit 103 selects to enter a preoperative mode or postoperative mode and generates a corresponding low-voltage control signal according to the first feedback signal or the second feedback signal; the battery unit 102 also supplies power to other units, and the micro control unit 103 also serves as a master control unit to coordinate and control other units. In this embodiment, the first current feedback unit 107 and the second current feedback unit 108 respectively correspond to two pre-operation and post-operation electrical loops, and detect whether the current host is correspondingly installed with a pre-operation electrode band or a post-operation electrode band through output feedback, so as to automatically enter a corresponding pre-operation mode or post-operation mode without manual selection (if the pre-operation electrical loop has output feedback, it indicates that the host 100 is installed on the pre-operation electrode band 200, and at this time, the electrotherapy apparatus enters the pre-operation mode, otherwise, if the post-operation electrical loop has output feedback, it indicates that the host 100 is installed on the post-operation electrode band 300, and at this time, the electrotherapy apparatus enters the post-operation mode), and meanwhile, the first current feedback unit 107 and the second current feedback unit 108 may further control the voltage boosting unit 104 through feedback in the pre-operation mode or the post-operation mode, so as to avoid that the output pulse is too low to achieve the electrotherapy effect, or the output pulse is too high to cause harm to a human body. In practical application, the battery unit 102 is a button battery, and provides a battery voltage of, for example, 3V, the boosting unit 104 boosts the lower battery voltage to a voltage required for electrotherapy, generally, the maximum voltage is between 80V and 120V, and the stimulation unit 106 is composed of an output capacitor, an H-bridge, a shunt resistor, a current-limiting component, a time-limiting component, and the like, and electrically stimulates the human body by externally connecting positive and negative electrode plates. It should be noted that the battery unit 102 is electrically connected to other units, and the mcu 103 is also electrically connected to other units, but the corresponding connection is not shown in order to avoid confusion caused by excessive connection.

More specifically, the host 100 further includes: a power key (not shown) disposed on the main housing 101 and electrically connected to the battery unit 102 for controlling the on/off of the electrotherapy apparatus. Of course, the host 100 may further include two intensity adjustment keys (not shown in the figure), which are disposed on two sides of the power key and electrically connected to the micro control unit 103, so as to perform output control through the micro control unit 103, and implement intensity adjustment of the output pulse.

Specifically, as shown in fig. 1, the preoperative electrode strip 200 and the postoperative electrode strip 300 each further include: the host mounting seat 203/303 is arranged on one surface of the electrode belt main body 201/301, which is far away from the body surface skin area; the main unit 100 is mounted on the preoperative electrode strip 200 or the postoperative electrode strip 300 through the main unit mounting seat 203/303, and is electrically connected with the two electrode pads 202a and 202b of the preoperative electrode strip 200 or the two electrode pads 302a and 302b of the postoperative electrode strip 300. For the preoperative electrode strip 200, the host mounting seat 203 is arranged at one end of the electrode strip main body 201, and the two electrode slices 202a and 202b are arranged at the same side of the host mounting seat 203; for the post-operation electrode strip 300, the host mounting seat 303 is arranged in the middle of the electrode strip main body 301, and the two electrode plates 302a and 302b are arranged on two sides of the host mounting seat 303. In this embodiment, by designing the pre-operation electrode strip 200 and the post-operation electrode strip 300, the positions of the two electrode sheets 202a and 202b of the pre-operation electrode strip 200 and the positions of the two electrode sheets 302a and 302b of the post-operation electrode strip 300 are relatively fixed, so that the stimulation object can be more easily aligned when the electrode strip is worn, and the electrode strip is more easily and conveniently worn.

More specifically, as shown in fig. 1 and fig. 2, three first electrical connectors 400a, 400b, 400c are disposed on a surface of the host casing 101 facing the host mounting seat 203/303, and the three first electrical connectors 400a, 400b, 400c are all electrically connected to the stimulation unit 106, wherein one of the three first electrical connectors is used as a common electrical connector (e.g. 400 a), and the other two first electrical connectors are used as electrical connectors in different modes (e.g. 400b is an electrical connector in a pre-operation mode, and 400c is an electrical connector in a post-operation mode). Correspondingly, two second electric connectors 500a and 500b are arranged on the host mounting seat 203 of the preoperative electrode belt 200, and the positions of the two second electric connectors are in one-to-one correspondence with the positions of the first electric connectors 400a and 400b respectively; the host mounting seat 303 of the post-operation electrode belt 300 is also provided with two second electrical connectors 500a and 500c, which are respectively in one-to-one correspondence with the first electrical connectors 400a and 400 c. When the host 100 is installed in the host mount 201 of the preoperative electrode strip 200, the first electrical connectors 400a, 400B on the host 100 and the second electrical connectors 500a, 500B on the host mount 201 are in corresponding physical contact to achieve electrical connection, thereby forming an electrical circuit between the host 100 and the two electrode pads 202a, 202B of the preoperative electrode strip 200 (as in fig. 2 first electrical connectors 400a and 400B form an electrical circuit with the A1 electrode and the B1 electrode connected therebetween); when the host computer 100 is installed in the host computer installation seat 301 of the post-operation electrode strip 300, the first electrical connectors 400a and 400c on the host computer 100 and the second electrical connectors 500a and 500c on the host computer installation seat 301 are in corresponding physical contact to realize electrical connection, so that an electrical circuit is formed between the host computer 100 and the two electrode plates 302a and 302B of the post-operation electrode strip 300 (as in fig. 2, the first electrical connectors 400a and 400c and the A2 electrode and the B2 electrode connected therebetween form an electrical circuit). In this embodiment, the first electrical connector and the second electrical connector are designed, so that cables are not needed for electrical connection between the main machine 100 and the preoperative electrode strip 200 and the postoperative electrode strip 300, and the electrotherapy device is integrally designed and convenient to wear. Optionally, the first electrical connection is a contact point and the second electrical connection is a probe; in practical application, the probe is a POGOPIN elastic probe, and the material of the contact point and the elastic needle can be copper metal.

Specifically, as shown in fig. 1, when the host 100 is installed in the host installation seat 203/303, the limit installation can be realized only by using the edge structure of the host installation seat 203/303. Of course, the host 100 and the host mounting seat 203/303 can also be mounted in a magnetic manner; at this time, a magnet 600 is disposed on a surface of the host casing 101 facing the host mounting seat 203/303, and an iron sheet 700 is correspondingly disposed at a corresponding position of the host mounting seat 203/303, so as to facilitate magnetic attraction to assist in limiting installation.

Specifically, one surface of the electrode belt main body 201/301 contacting with the body surface skin is further provided with an adhesive coating (not shown in the figure), wherein the adhesive coating comprises a hydrogel coating; the hydrogel is not only electrically conductive, but also sufficiently adhesive to allow the electrotherapy device to be adhered to body surface skin, resulting in a body-worn effect. It should be noted that, when the pasting coating is provided on the surface of the electrode strip main body 201/301 contacting the body surface skin, the two electrode pads 202a/302a, 202b/302b should be prevented from being shorted, for example, the pasting coating may be applied only on the region where the electrode pads are located and the region where the host mounting seat is located, or of course, the pasting coating may be applied on the interval region between the two electrode pads, but it should be noted that the pasting coating on the interval region should not contact the pasting coatings on the two electrode pad regions.

Specifically, the waveform of the preoperative electrical stimulation pulse comprises a unipolar square wave or an asymmetric bipolar pulse (as shown in (a) and (c) in fig. 3), wherein the frequency of the unipolar square wave and the frequency of the asymmetric bipolar pulse are both between 0.1Hz and 10Hz, the maximum pulse voltage is both between 40V and 120V, the maximum pulse current is both between 20mA and 40mA, and the pulse width is both between 100 μ s and 1000 μ s (as shown in the following table); the waveform of the post-operative electrical stimulation pulse comprises a symmetrical bipolar square wave or an asymmetrical bipolar pulse (as shown in (b) and (c) of fig. 3), wherein the frequencies of the symmetrical bipolar square wave and the asymmetrical bipolar pulse are both between 5Hz and 150Hz, the maximum pulse voltage is both between 40V and 120V, the maximum pulse current is both between 20mA and 40mA, and the pulse width is both between 100 mus and 1000 mus (as shown in the following table). In practical application, the electrotherapy parameters corresponding to different pulse waveforms in different working modes can be preset, so that the operation of patients and medical staff is facilitated. It should be noted that, in the present embodiment, the numerical range of each parameter includes two end values.

Specifically, when the electrotherapy apparatus works in the preoperative mode, the wearing position of the electrotherapy apparatus is a tibialis anterior skin area and a peroneal short-muscle skin area corresponding to a connecting line of a peroneal long and short muscle head and a tibial tubercle of a knee joint, wherein a negative electrode sheet 202b of the two electrode sheets is positioned at the peroneal long and short muscle head attachment position, a positive electrode sheet 202a of the two electrode sheets is positioned at the peroneal anterior muscle head and peroneal short muscle head attachment position, and a stimulation object is a muscle nerve in the connecting line area of the tibial tubercle and the peroneal long and short muscle head attachment; when the electrotherapy device works in a postoperative mode, the wearing part of the electrotherapy device is a body surface skin area of a tibial crest, wherein the two electrode plates 302a and 302b are respectively positioned at two sides of the abdomen of the tibialis anterior muscle, and the stimulation object is the tibialis anterior muscle. In practical application, when the electrotherapy device works in a postoperative mode, the wearing part of the electrotherapy device starts from 1cm outside the tibial crest and 2cm below the tibial tubercle and vertically extends downwards to be placed on the body surface skin area of the tibial crest; the postoperative electrical stimulation pulse released by the electrode is a bipolar pulse, so the electrode has no difference between the positive electrode and the negative electrode.

Accordingly, as shown in fig. 4 to 7, the present embodiment also provides a use method of the electrotherapy apparatus as described above, including:

aiming at preoperative electrotherapy, the host is installed on the preoperative electrode belt and is placed in a body surface skin area to be electrically stimulated, at the moment, the electrotherapy equipment enters a preoperative mode, and the host releases preoperative electrostimulation pulses through two electrode slices of the preoperative electrode belt;

aiming at postoperative electrotherapy, the host is arranged on the postoperative electrode strip and is arranged in a body surface skin area to be electrically stimulated, at the moment, the electrotherapy equipment enters an postoperative mode, and the host releases postoperative electrical stimulation pulses through two electrode plates of the postoperative electrode strip.

For preoperative electrotherapy, the electrotherapy equipment is worn on the superficial skin areas of the tibialis anterior and the peroneal long and short muscles corresponding to the connection line of the peroneal long and short muscles of the knee joint and the tibial tubercle, wherein a negative electrode sheet 202b of the two electrode sheets is positioned at the peroneal long and short muscles and the peroneal head attachment position, and a positive electrode sheet 202a of the two electrode sheets is positioned at the peroneal anterior muscle and tibial attachment position (as shown in fig. 5) and is used for stimulating the muscle nerve in the connection line area of the tibial tubercle and the peroneal long and short muscles and the peroneal head attachment position; at this time, the positive electrode sheet 202a, the negative electrode sheet 202b and the host 100 should be on a horizontal straight line, and of course, a certain error is also allowed, that is, the straight line where the positive electrode sheet 202a, the negative electrode sheet 202b and the host 100 are located has a certain inclined angle with respect to the horizontal line. In the actual wearing process, a patient should find the fibula first, and paste the negative electrode sheet 202b at about 2-3 fingers below the fibula, and then paste the positive electrode sheet 202a and the host 100 to the inner side of the knee joint transversely along the same direction, so as to complete the wearing of the electrotherapy device.

For postoperative electrotherapy, the electrotherapy device is worn on the body surface skin area of the tibial crest, wherein two electrode pads 302a and 302b are respectively positioned at two sides of the abdomen of the tibialis anterior muscle (as shown in fig. 7) to stimulate the tibialis anterior muscle; at this time, the two electrode pads 302a, 302b and the host 100 should be on a vertical line, and of course, a certain error is also allowed, that is, a straight line where the two electrode pads 302a, 302b and the host 100 are located has a certain inclined angle with respect to the vertical line. In the actual wearing process, the patient should find the position 1cm outside the tibial crest and 2cm below the tibial tubercle, paste one electrode plate (for example 302 a), and then paste the host 100 and the other electrode plate (for example 302 b) vertically downwards in sequence, so as to complete the wearing of the electrotherapy device.

Example two

As shown in fig. 8, the present embodiment is different from the first embodiment in that: the main body 100 is installed in a different manner from the preoperative electrode strip 200 and the postoperative electrode strip 300; in the first embodiment, the main unit 100 and the preoperative electrode strip 200 and the postoperative electrode strip 300 are installed by using the main unit installation seat 203/303, and in the first embodiment, the main unit 100 and the preoperative electrode strip 200 and the postoperative electrode strip 300 are installed by using the electrode strip installation groove 109.

Specifically, an electrode belt installation groove 109 is formed in the main frame 100, and the pre-operation electrode belt 200 or the post-operation electrode belt 300 is installed on the main frame 100 through the electrode belt installation groove 109; when the preoperative electrode strip 200 is mounted on the main unit 100 through the electrode strip mounting groove 109, the main unit 100 is electrically connected with the two electrode strips 202a and 202b of the preoperative electrode strip 200; when the post-operation electrode strip 300 is installed on the main unit 100 through the electrode strip installation groove 109, the main unit 100 is electrically connected with the two electrode plates 302a and 302b of the post-operation electrode strip 300.

More specifically, as shown in fig. 8, three first electrical connectors 400a, 400b, and 400c are disposed in the electrode strip mounting groove 109, and the three first electrical connectors 400a, 400b, and 400c are all electrically connected to the stimulation unit 106, wherein one of the three first electrical connectors is a common electrical connector (e.g., 400 a), and the other two first electrical connectors are electrical connectors in different modes (e.g., 400b is an electrical connector in a preoperative mode, and 400c is an electrical connector in a postoperative mode). Correspondingly, the insertion end of the preoperative electrode belt 200 is provided with two second electric connectors 500a and 500b, and the positions of the two second electric connectors are in one-to-one correspondence with the positions of the first electric connectors 400a and 400b respectively; the insertion end of the post-operation electrode band 300 is also provided with two second electrical connectors 500a and 500c, which are respectively in one-to-one correspondence with the first electrical connectors 400a and 400 c. When the insertion end of the pre-operation electrode belt 200 is inserted into the electrode belt installation groove 109, the first electrical connectors 400a and 400b on the main frame 100 and the second electrical connectors 500a and 500b on the pre-operation electrode belt 200 are in corresponding physical contact to realize electrical connection, so that an electrical circuit is formed between the main frame 100 and the two electrode plates 202a and 202b of the pre-operation electrode belt 200; when the inserted end of the post-operation electrode strip 300 is inserted into the electrode strip installation groove 109, the first electrical connectors 400a and 400c on the main unit 100 and the second electrical connectors 500a and 500c on the post-operation electrode strip 300 are in corresponding physical contact to realize electrical connection, so that an electrical circuit is formed between the main unit 100 and the two electrode plates 302a and 302b of the post-operation electrode strip 300. Optionally, the first electrical connection piece is a gold finger, and the second electrical connection piece is a gold finger slot; of course, the first electrical connector may also be a thimble, and the second electrical connector may also be a thimble contact.

EXAMPLE III

As shown in fig. 9, the present embodiment provides an electrotherapy apparatus including: a main unit 100' and a common electrode strip 200', wherein the common electrode strip 200' comprises: the electrode strip comprises an electrode strip main body 201' and at least three electrode plates arranged on the electrode strip main body 201', wherein the electrode plates are arranged on one surface of the electrode strip main body 201' contacting with body surface skin; wherein the electrode slice comprises a preoperative electrode slice and a postoperative electrode slice;

when the main machine 100' selects to enter the preoperative mode, the electrotherapy apparatus works in the preoperative mode, the main machine 100' is electrically connected with the preoperative electrode pad of the common electrode strip 200', and preoperative electrical stimulation pulses are released through the preoperative electrode pad;

when the host 100' selects to enter the post-operation mode, the electrotherapy device works in the post-operation mode, and the host 100' is electrically connected with the post-operation electrode plate of the common electrode strip 200' and releases post-operation electrical stimulation pulses through the post-operation electrode plate.

Specifically, as shown in fig. 9 and 10, the host 100' includes: the multifunctional electric stimulator comprises a main machine shell 101', a battery unit 102', a micro-control unit 103', a voltage boosting unit 104', a pulse output control unit 105 'and a stimulation unit 106', wherein the battery unit 102', the micro-control unit 103', the voltage boosting unit 104', the pulse output control unit 105 and the stimulation unit 106' are arranged in the main machine shell 101', the micro-control unit 103' selects a preoperative mode or a postoperative mode and generates corresponding low-voltage control signals, the voltage boosting unit 104 'boosts the battery voltage provided by the battery unit 102' to the voltage required by electrotherapy, the pulse output control unit 105 'converts the low-voltage control signals into high-voltage control signals, and the stimulation unit 106' performs output control on the voltage required by the electrotherapy according to the high-voltage control signals so as to release preoperative electric stimulation pulses through preoperative electrode pads or postoperative electric stimulation pulses through postoperative electrode pads; the battery unit 102 'also supplies power to other units, and the micro control unit 103' also serves as a master control unit to coordinate and control other units. In practical application, the battery unit 102' is a button battery and provides a battery voltage of, for example, 3V, the boosting unit 104' boosts the lower battery voltage to a voltage required for electrotherapy, generally, the maximum voltage is between 80V and 120V, and the stimulation unit 106' is composed of an output capacitor, an H-bridge, a shunt resistor, a current-limiting component, a time-limiting component and the like, and is externally connected with positive and negative electrode plates to provide human body electrostimulation. It should be noted that the battery unit 102 'is electrically connected to other units, and the mcu 103' is also electrically connected to other units, but the corresponding connection lines are not shown in order to avoid confusion due to excessive connection lines.

Further, as shown in fig. 10, the host portion 100' further includes a first current feedback unit 107' and a second current feedback unit 108', the first current feedback unit 107' samples an output pulse of an electrical loop where the electrode pad before the operation is located and performs feedback control on the voltage boost unit 104', and the second current feedback unit 108' samples an output pulse of an electrical loop where the electrode pad after the operation is located and performs feedback control on the voltage boost unit 104', so as to avoid that the output current is too low to achieve an electrotherapy effect or too high to cause harm to a human body. Of course, the first current feedback unit 107 'and the second current feedback unit 108' are also powered by the battery unit 102 'and controlled by the micro control unit 103'; that is, the first current feedback unit 107 'and the second current feedback unit 108' are electrically connected to the battery unit 102 'and the micro control unit 103'.

More specifically, the host 100' further includes: a power key (not shown) disposed on the main housing 101 'and electrically connected to the battery unit 102' for controlling the on/off of the electrotherapy apparatus. The host 100' further includes: a mode selection key (not shown) is disposed on the main housing 101 'and electrically connected to the micro control unit 103' for selecting a pre-operation mode or a post-operation mode. Of course, the host 100' may further include two intensity adjustment keys (not shown in the figure), which are disposed on two sides of the power key and electrically connected to the micro control unit 103' for performing output control through the micro control unit 103' to achieve intensity adjustment of the output pulse.

Specifically, when the number of the electrode pads is three, one of the three electrode pads is a common electrode pad (e.g., 202a ') which forms a preoperative electrode pad with one of the other two electrode pads (e.g., 202b '), and forms a postoperative electrode pad with the other of the other two electrode pads (e.g., 202c '); and when the number of the electrode plates is four, two of the four electrode plates are preoperative electrode plates, and the other two electrode plates are postoperative electrode plates. In this embodiment, the number of electrode sheets is three.

Specifically, the connection between the host 100 'and the common electrode strip 200' may be a direct physical connection (as shown in fig. 9), or may be a connection as described in the first embodiment or the second embodiment. When the direct physical connection manner is adopted, three electrical connectors 300a ', 300b', 300c 'are further disposed on the main unit 100', and the three electrical connectors 300a ', 300b', 300c 'are all electrically connected to the stimulation unit 106', wherein one of the three electrical connectors (e.g. 300a ') is electrically connected to the common electrode pad (202 a'), and the other two electrical connectors are electrically connected to the other two electrode pads one by one (e.g. 300b 'and 202b', 300c 'and 202 c'). When the connection mode as described in the first or second embodiment is adopted, three electrical connectors are led out from the output end of the stimulation unit 106', three electrical connectors electrically connected with the electrode plates in a one-to-one correspondence manner are led out from the common electrode strip portion, and the electrical connection between the host 100' and the corresponding electrode plates is realized by mounting the host 100 'and the common electrode strip 200' together.

Specifically, a surface of the electrode strip main body 201' contacting the body surface skin is further provided with an adhesive coating (not shown in the figure), wherein the adhesive coating comprises a hydrogel coating; the hydrogel is not only electrically conductive, but also sufficiently adhesive to allow the electrotherapy device to be adhered to body surface skin, resulting in a body-worn effect. It should be noted that when the adhesive coating is disposed on the surface of the electrode strip main body 201' contacting the body surface skin, short circuit between the electrode sheets should be avoided, for example, the adhesive coating may be coated only on the region where the electrode sheets are located and the region where the host computer is located, or of course, the adhesive coating may be coated on the gap region between the electrode sheets, but at this time, it should be noted that the adhesive coating in the gap region should not contact the adhesive coatings in the two electrode sheet regions.

Specifically, the waveform of the preoperative electrical stimulation pulse includes a unipolar square wave or an asymmetric bipolar pulse (as shown in (a) and (c) in fig. 3), wherein the frequency of the unipolar square wave and the frequency of the asymmetric bipolar pulse are both between 0.1Hz and 10Hz, the maximum pulse voltage is both between 40V and 120V, the maximum pulse current is both between 20mA and 40mA, and the pulse width is both between 100 μ s and 1000 μ s (as shown in the following table); the waveform of the post-operative electrical stimulation pulse comprises a symmetrical bipolar square wave or an asymmetrical bipolar pulse (as shown in (b) and (c) of fig. 3), wherein the frequencies of the symmetrical bipolar square wave and the asymmetrical bipolar pulse are both between 5Hz and 150Hz, the maximum pulse voltage is both between 40V and 120V, the maximum pulse current is both between 20mA and 40mA, and the pulse width is both between 100 mus and 1000 mus (as shown in the following table). In practical application, the electrotherapy parameters corresponding to different pulse waveforms in different working modes can be preset, so that the operation of patients and medical staff is facilitated. It should be noted that, in the present embodiment, the numerical range of each parameter includes two end values.

Specifically, when the electrotherapy apparatus works in the preoperative mode, the wearing position of the electrotherapy apparatus is a superficial skin area of tibialis and peroneal long and short muscles corresponding to the connecting line of the peroneal long and short muscle and the fibula tuberosity of the knee joint, wherein a negative electrode sheet 202a 'of the two electrode sheets is positioned at the peroneal long and short muscle and peroneal head attachment position, a positive electrode sheet 202b' of the two electrode sheets is positioned at the peroneal anterior muscle and peroneal short muscle and fibula attachment position, and the stimulation object is a muscular nerve in the connecting line area of the tibial tuberosity and the peroneal long and short muscle and peroneal head attachment position; when the electrotherapy device works in a postoperative mode, the wearing part of the electrotherapy device is a body surface skin area of a tibial crest, wherein the two electrode plates 202a 'and 202c' are respectively positioned at two sides of the abdomen of the tibialis anterior muscle, and the stimulation object is the tibialis anterior muscle. In practical application, when the electrotherapy device works in a postoperative mode, the wearing part of the electrotherapy device starts from 1cm outside the tibial crest and 2cm below the tibial tubercle and vertically extends downwards to be placed on the body surface skin area of the tibial crest; the postoperative electrical stimulation pulse released by the electrode is a bipolar pulse, so the electrode has no difference between the positive electrode and the negative electrode.

Accordingly, the present embodiment also provides a use method of the electrotherapy apparatus as described above, including:

aiming at preoperative electrotherapy, the electrotherapy equipment is placed in a body surface skin area to be electrically stimulated, and a preoperative mode is selected to enter through the host, and at the moment, the host releases preoperative electrostimulation pulses through a preoperative electrode slice of the common electrode strip;

aiming at postoperative electrotherapy, the electrotherapy equipment is arranged in a body surface skin area to be electrically stimulated, and the host computer selects to enter an postoperative mode, and at the moment, the host computer releases postoperative electrostimulation pulse through an postoperative electrode slice of the common electrode strip.

For preoperative electrotherapy, the electrotherapy equipment is worn on the superficial skin areas of tibialis anterior and fibula long and short muscles corresponding to the connection line of the fibula head attachment part of the fibula long and short muscles of the knee joint, wherein a negative electrode sheet 202a 'of the two electrode sheets is positioned at the fibula head attachment part of the fibula long and short muscles, and a positive electrode sheet 202b' of the two electrode sheets is positioned at the tibialis anterior attachment part of the tibialis anterior to stimulate the muscular nerve in the connection line area of the tibialis anterior and fibula long and short muscles and the fibula head attachment part; at this time, the positive electrode sheet 202b ', the negative electrode sheet 202a', and the host 100 'should be on a horizontal straight line, and of course, a certain error is also allowed, that is, the straight line where the positive electrode sheet 202b', the negative electrode sheet 202a ', and the host 100' are located has a certain inclined included angle with respect to the horizontal line. In the actual wearing process, a patient should find the fibula, paste the negative electrode sheet 202a ' at about 2-3 fingers below the fibula, and then paste the positive electrode sheet 202b ' and the main machine 100' to the inner side of the knee joint in sequence in a transverse direction, so as to complete wearing of the electrotherapy device.

For postoperative electrotherapy, the electrotherapy device is worn on a body surface skin area of a tibial crest, wherein two electrode plates 202a 'and 202c' are respectively positioned at two sides of the abdomen of the tibialis anterior muscle and used for stimulating the tibialis anterior muscle; at this time, the two electrode slices 202a ', 202c' and the host 100 'should be on a vertical line, and a certain error is also allowed, that is, a certain inclined angle is formed between a straight line where the two electrode slices 202a', 202c 'and the host 100' are located and the vertical line. In the actual wearing process, the patient should find the position 1cm outside the tibial crest and 2cm below the tibial tubercle, paste one electrode slice (for example, 202a '), and then paste the other electrode slice (for example, 202c ') and the host 100' vertically downwards in sequence, so as to complete the wearing of the electrotherapy device.

In conclusion, the electrotherapy equipment can support two modes of operation before and after, wherein the operation before mode can promote limb swelling to be eliminated and achieve the aim of preventing deep vein thrombosis, and the operation after mode can help muscle strength to recover and achieve the aim of preventing disuse muscle atrophy; moreover, the whole electrotherapy equipment is integrally designed, is small and exquisite in product form, convenient to wear, not easy to mix positive and negative electrode plates and stick the electrode plates to wrong positions, and has very important significance for improving the treatment and rehabilitation management level of the orthopedic perioperative period of the trauma. Therefore, the invention effectively overcomes various defects in the prior art and has high industrial utilization value.

The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims (10)

1. An electrotherapy device, comprising:

host computer, preoperative electrode area and postoperative electrode area, preoperative electrode area with postoperative electrode area all includes: the electrode strip comprises an electrode strip main body and two electrode plates arranged on the electrode strip main body, wherein the electrode plates are arranged on one surface of the electrode strip main body, which is in contact with the skin of a body surface;

when the host is electrically connected with the two electrode slices of the preoperative electrode strip, the electrotherapy equipment works in a preoperative mode, and at the moment, the host releases preoperative electrostimulation pulses through the two electrode slices of the preoperative electrode strip;

when the host computer with two electrode slice electrical connection of postoperative electrode area, electrotherapy equipment work in postoperative mode, at this moment, the host computer passes through two electrode slices of postoperative electrode area release postoperative electrical stimulation pulse.

2. The electrotherapy device of claim 1, wherein each of said pre-operative electrode strips and said post-operative electrode strips further comprises: the host mounting seat is arranged on one surface of the electrode belt main body, which is far away from the body surface skin area; the main machine is installed on the preoperative electrode strip or the postoperative electrode strip through the main machine installation seat and is electrically connected with the two electrode slices of the preoperative electrode strip or the two electrode slices of the postoperative electrode strip.

3. The electrotherapy device according to claim 2, wherein for said preoperative electrode strip, said host mount is disposed at one end of said electrode strip body, and said two electrode pads are disposed on the same side of said host mount; for the postoperative electrode strip, the main machine mounting seat is arranged in the middle of the electrode strip main body, and the two electrode plates are arranged on two sides of the main machine mounting seat.

4. The electrotherapy apparatus according to claim 1, wherein an electrode belt mounting groove is provided on said main machine, through which said preoperative electrode belt or said postoperative electrode belt is mounted on said main machine;

when the preoperative electrode strip is installed on the main machine through the electrode strip installation groove, the main machine is electrically connected with the two electrode plates of the preoperative electrode strip;

when the postoperative electrode strip passes through the electrode strip mounting groove and is installed on the host computer, the host computer is electrically connected with the two electrode slices of the postoperative electrode strip.

5. The electrotherapy apparatus according to claim 1, wherein when the electrotherapy apparatus is operated in an preoperative mode, the wearing position of the electrotherapy apparatus is a superficial skin area of tibialis anterior and peroneal short muscles corresponding to a tibia tubercle line at a peroneal long and short muscle fibula head attachment part of a knee joint, wherein a negative electrode sheet of the two electrode sheets is located at the peroneal long and short muscle peroneal head attachment part, a positive electrode sheet of the two electrode sheets is located at the tibialis anterior muscle peroneal head attachment part, and a stimulation object is a muscle nerve in a connecting line area of the tibial tubercle and the peroneal long and short muscle peroneal head attachment part; when the electrotherapy device works in a postoperative mode, the wearing part of the electrotherapy device is a body surface skin area of a tibial crest, wherein the two electrode plates are respectively positioned at two sides of the abdomen of the tibialis anterior muscle, and the stimulation object is the tibialis anterior muscle.

6. The electrotherapy device according to claim 1, wherein a waveform of the preoperative electrical stimulation pulses comprises unipolar square waves or asymmetric bipolar pulses, wherein the frequency of each of the unipolar square waves and the asymmetric bipolar pulses is between 0.1Hz and 10Hz, the maximum pulse voltage is between 40V and 120V, the maximum pulse current is between 20mA and 40mA, and the pulse width is between 100 μ s and 1000 μ s; the waveform of the postoperative electric stimulation pulse comprises a symmetrical bipolar square wave or an asymmetrical bipolar pulse, wherein the frequencies of the symmetrical bipolar square wave and the asymmetrical bipolar pulse are both between 5Hz and 150Hz, the maximum pulse voltage is both between 40V and 120V, the maximum pulse current is both between 20mA and 40mA, and the pulse width is both between 100 mus and 1000 mus.

7. An electrotherapy device, comprising:

host computer and sharing electrode strip, sharing electrode strip includes: the electrode strip comprises an electrode strip main body and at least three electrode plates arranged on the electrode strip main body, wherein the electrode plates are arranged on one surface of the electrode strip main body, which is in contact with body surface skin; wherein the electrode slice comprises a preoperative electrode slice and a postoperative electrode slice;

when the host selects to enter a preoperative mode, the electrotherapy equipment works in the preoperative mode, the host is electrically connected with a preoperative electrode plate of the common electrode strip, and preoperative electric stimulation pulses are released through the preoperative electrode plate;

when the host computer selects to enter the postoperative mode, the electrotherapy device works in the postoperative mode, and the host computer is electrically connected with the postoperative electrode slice of the common electrode strip and releases postoperative electrical stimulation pulse through the postoperative electrode slice.

8. The electrotherapy apparatus according to claim 7, wherein when the number of the electrode pads is three, one of the three electrode pads is a common electrode pad which constitutes a preoperative electrode pad with one of the other two electrode pads and a postoperative electrode pad with the other of the other two electrode pads; when the number of the electrode plates is four, two of the four electrode plates are preoperative electrode plates, and the other two electrode plates are postoperative electrode plates.

9. The electrotherapy apparatus according to claim 7, wherein when the electrotherapy apparatus is operated in an preoperative mode, the wearing position of the electrotherapy apparatus is a superficial skin area of tibialis anterior and peroneal short muscles corresponding to a tibia tubercle line at a peroneal long and short muscle fibula head attachment part of a knee joint, wherein a negative electrode sheet of the two electrode sheets is positioned at the peroneal long and short muscle peroneal head attachment part, a positive electrode sheet of the two electrode sheets is positioned at the tibialis anterior muscle peroneal head attachment part, and a stimulation object is a muscle nerve in a connecting line area of the tibial tubercle and the peroneal long and short muscle peroneal head attachment part; when the electrotherapy device works in a postoperative mode, the wearing part of the electrotherapy device is a body surface skin area of a tibial crest, wherein the two electrode plates are respectively positioned at two sides of the abdomen of the tibialis anterior muscle, and the stimulation object is the tibialis anterior muscle.

10. The electrotherapy device according to claim 7, wherein a waveform of the preoperative electrical stimulation pulses comprises unipolar square waves or asymmetric bipolar pulses, wherein the frequency of each of the unipolar square waves and the asymmetric bipolar pulses is between 0.1Hz-10Hz, the maximum pulse voltage is between 40V-120V, the maximum pulse current is between 20mA-40mA, and the pulse width is between 100 μ s-1000 μ s; the waveform of the postoperative electrical stimulation pulse comprises a symmetrical bipolar square wave or an asymmetrical bipolar pulse, wherein the frequencies of the symmetrical bipolar square wave and the asymmetrical bipolar pulse are both between 5Hz and 150Hz, the maximum pulse voltage is both between 40V and 120V, the maximum pulse current is both between 20mA and 40mA, and the pulse width is both between 100 mus and 1000 mus.

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