Pulse microwave air plasma jet physiotherapy device

Abstract

The invention belongs to the technical field of microwave physiotherapy, and particularly relates to a pulse microwave air plasma jet physiotherapy device. The device disclosed by the invention is reasonable in design, and when microwave electromagnetic waves are emitted into biological tissues as physiotherapy factors, the microwave electromagnetic waves can be absorbed by water molecules, so that the temperature of the biological tissues rises, blood capillaries in the biological tissues are expanded, and the blood flow is increased by several times. The pulse microwave radiation can enter the tissue, and the product of the air plasma jet is hot air rich in NO; when NO exists in the form of hot air, the hot air can enable the temperature of the blood vessel wall to rise, and then the activity and the diffusion rate of NO molecules are increased. Therefore, NO can be more effectively combined with vascular smooth muscle cells to play a role in relaxing vascular smooth muscles, in addition, pulse modulation signals are added into the physiotherapy device, the average power and the calorific value of the instrument are reduced, and the energy-saving effect is achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of microwave therapy, and in particular relates to a pulse microwave air plasma jet therapy device. Background Art

[0002] Most elderly people with diabetes will face the chronic complication of neuropathy, which is one of the most common complications of diabetes. This lesion may affect the central nervous system and peripheral nerves, of which the latter is particularly common. The clinical manifestations of neuropathy vary, and some patients may experience discomfort such as stiff fingers and itching when the disease occurs. What is particularly notable is that when these patients receive injection treatment, it is often difficult to find a vein due to the poor state of their blood vessels, which has become a major challenge facing current medical technology. Therefore, studying how to effectively dilate the capillaries of such patients to improve the success rate of venipuncture has become a technical problem waiting to be solved.

[0003] Studies have shown that microwave electromagnetic waves have microwave thermal effects and microwave biological effects. When microwave electromagnetic waves are emitted into biological tissues as physical therapy factors, the microwave electromagnetic waves can be absorbed by water molecules, causing the temperature of biological tissues to rise, the capillaries in the biological tissues to expand, and the blood flow to increase several times. This is the thermal effect of microwave electromagnetic waves. Based on the thermal effect of microwave electromagnetic waves, studies have shown that NO can dilate blood vessels. NO is an important regulatory factor for vasodilation and can promote the formation of new blood vessels (angiogenesis). In the process of wound healing, the formation of new blood vessels is essential for providing sufficient oxygen and nutrients.

[0004] Among the air plasma jet therapy devices in recent years, traditional therapy devices and Suman sliding arc plasma therapy devices have the most comparative advantages due to their higher absorption rate of therapy factors. However, traditional therapy devices can only treat the inside of the body, Suman's sliding arc air plasma therapy device can only treat the surface and hot compress, while pulse microwave radiation can enter the tissue. The product of air plasma jet is NO-rich hot air for human surface therapy. This three-dimensional therapy effect is unattainable by all current products.

[0005] The microwave driving source couples microwave energy into the discharger, and the discharge area of ​​the discharger can form a strong electric field area, which breaks down the air to generate gas discharge. One end of the coaxial resonator is short-circuited and the other end is open-circuited, and gas discharge occurs in the high-field intensity area of ​​the open end to excite the air plasma jet. The microwave power source frequency corresponds to an odd multiple of one quarter of the wavelength as the length of the coaxial line. This coaxial resonator has a simple structure and stable discharge.

[0006] The Chinese patent document with publication number CN 212416685 U discloses an improved physical therapy device for relaxing meridians and activating blood circulation, which can adjust the contact area between the contact piece and the human body according to different parts of the patient's body, and can effectively improve the quality and efficiency of physical therapy. However, the physical therapy device can only promote blood circulation in the body, but cannot improve the comfort feeling outside the body, which may increase the patient's pain.

[0007] The Chinese patent document with publication number CN 218420674 U discloses a microwave radiator and a physiotherapy device, which utilizes the thermal effect of microwave electromagnetic waves to dilate capillaries in biological tissues and improve the immune function of biological tissues. However, the physiotherapy device has a low utilization rate of physiotherapy factors and poor heat dissipation capacity, which consumes a lot of energy.

[0008] The Chinese patent document with publication number CN 210228911 U discloses a physical therapy device, which brings people a good experience in eliminating fatigue, alleviating pain and auxiliary treatment. However, the physical therapy device can only temporarily increase the patient's comfort and fails to fundamentally improve the patient's blood circulation problem, thus leaving hidden dangers.

[0009] Therefore, how to create a three-dimensional physiotherapy device with low energy consumption, high utilization rate of physiotherapy factors, and the ability to perform both surface treatment and penetrate into the patient's tissue is an urgent problem that needs to be solved. Based on this, the inventor hopes to provide a pulsed microwave air plasma jet physiotherapy device. Summary of the invention

[0010] The purpose of the present invention is to overcome the shortcomings of poor therapeutic effect and high energy consumption in traditional technologies and to provide a pulse microwave air plasma jet therapy device.

[0011] In order to achieve the above technical objectives and the above technical effects, the present invention is implemented through the following technical solutions:

[0012] The present invention provides a pulse microwave air plasma jet physiotherapy device, comprising a pulse microwave modulation generator, a microwave inlet, an air inlet, an adjustment knob, a central electrode, a plasma jet, NO gas, an aluminum alloy waveguide, a quartz body, a quartz body bracket, a screen, a device housing, a fan, a power lithium battery and a control switch;

[0013] A coaxial resonator and a fan are installed inside the main body of the device housing, a microwave inlet and an air inlet are arranged opposite to each other on the outside of the coaxial resonator, and the outer end of the microwave inlet is connected to the microwave power output interface of the pulse microwave modulation generator;

[0014] A central electrode is installed inside the coaxial resonator, and the plasma jet is excited at the central electrode;

[0015] The coaxial resonator is provided with an adjustment knob at one end close to the fan, an aluminum alloy waveguide with a screen is provided at the other end of the coaxial resonator, the quartz body is placed at the end of the plasma jet and connected to the screen; the quartz body bracket is used to support the quartz body; a power lithium battery for powering various power-consuming components is installed inside the handle of the device shell, and a control switch is installed outside the handle of the device shell.

[0016] Furthermore, in the above-mentioned pulse microwave air plasma jet therapy device, the control switch is connected to the coaxial resonator, the fan and the power lithium battery respectively.

[0017] Furthermore, in the above-mentioned pulse microwave air plasma jet therapy device, the operating frequency of the pulse microwave modulation generator is 2.45 GHz. The generator uses pulse modulation technology, the pulse modulation frequency is 10 kHz, and the duty cycle is 0.2.

[0018] Furthermore, in the above-mentioned pulse microwave air plasma jet therapy device, the air inlet is supplied with gas from an air bottle, and the gas component thereof is air.

[0019] Furthermore, in the above-mentioned pulse microwave air plasma jet therapy device, the central electrode is a needle electrode capable of overcoming the atmospheric pressure breakdown field strength and maintaining the discharge power, and is made of stainless steel.

[0020] Furthermore, in the above-mentioned pulse microwave air plasma jet physiotherapy device, the adjustment knob can adjust the position selection of the microwave inlet, so that the coaxial resonator reaches the best resonant circuit state, that is, the impedance matching degree between the microwave power source and the discharger reaches the highest, and it is easier to excite the air to generate a plasma jet. The microwave inlet is also called an SMA interface, which affects the impedance matching degree between the microwave power source and the discharger.

[0021] Furthermore, in the above-mentioned pulse microwave air plasma jet physiotherapy device, the plasma jet is generated by ionizing air under the action of microwave energy; under the traction of the pressure difference airflow, a plasma jet of a certain length is formed; the pulse microwave radiation enters the interior of the tissue, and the product of the air plasma jet is hot air rich in NO. NO gas is light yellow and exists in the form of hot air.

[0022] Furthermore, in the above-mentioned pulse microwave air plasma jet therapy device, the quartz body is made of high-purity quartz, the silicon dioxide content of which is above 99.95%, and is inlaid with metal copper wire. The quartz body is designed to disperse the plasma jet on the one hand. Due to the high temperature characteristics of the plasma jet, the quartz body plays a role in slowing down the temperature of the plasma jet so that it can be blown to the patient at a suitable temperature. On the other hand, the metal copper wire is inlaid in the quartz body, which acts as a microwave antenna. Microwave surface waves are generated in the antenna, generating a surface wave effect, so that the microwave energy can be radiated to the patient in a uniform manner, thereby improving the utilization rate of the therapy factor.

[0023] Furthermore, one end of the quartz body bracket is closely attached to the quartz body, and the other end is fixed to the outer shell of the aluminum alloy waveguide.

[0024] Furthermore, in the above-mentioned pulse microwave air plasma jet therapy device, the voltage of the power lithium battery is 25V.

[0025] Furthermore, in the above-mentioned pulse microwave air plasma jet therapy device, the screen is made of zirconia fiber. According to the structural characteristics of ceramic powder and zirconia fiber cloth, a "bidirectional" interface modification method is adopted to improve the bonding between the interfaces. With the help of the excellent packaging compatibility of zirconia fiber cloth, the zirconia fiber cloth with impact resistance, stress tensile resistance, light weight and high temperature resistance is combined with ceramic powder to construct a zirconia fiber net with a mesh structure; the prepared zirconia fiber net has strong high temperature resistance, high elasticity and strong insulation ability. The screen is designed to evenly disperse the distribution of NO molecules and reduce their temperature. From the perspective of gas molecule, NO is a biologically active gas molecule. Hot air can also increase the temperature of the blood vessel wall, thereby increasing the activity and diffusion rate of NO molecules. In this way, NO can more effectively bind to vascular smooth muscle cells and exert its relaxing effect.

[0026] Furthermore, in the above-mentioned pulse microwave air plasma jet therapy device, the main body of the device shell is made of ceramic fiber material, and the purpose of making it into a trumpet shape is to increase the contact area of ​​the patient's wound, thereby achieving a higher absorption rate of therapeutic factors. The gun body is made of insulating plastic and its shape is easy to hold.

[0027] Furthermore, in the above-mentioned pulse microwave air plasma jet therapy device, the wind direction of the fan is to blow toward the nozzle of the device housing so that more NO hot air can be blown to the wound.

[0028] The beneficial effects of the present invention are:

[0029] 1. Compared with the existing technology, microwave electromagnetic waves have microwave thermal effect and microwave biological effect. When microwave electromagnetic waves are emitted into biological tissues as physical therapy factors, since microwave electromagnetic waves can be absorbed by water molecules, the temperature of biological tissues rises, the capillaries in the biological tissues expand, and the blood flow increases several times. This is also the thermal effect of microwave electromagnetic waves.

[0030] 2. Compared with the existing technology, pulsed microwave radiation can penetrate into the tissue, and the product of the air plasma jet is a human body surface therapy with hot air rich in NO, achieving a three-dimensional therapeutic effect. NO can dilate blood vessels and relax vascular smooth muscles, thereby increasing blood flow and lowering blood pressure. NO is the most physiologically active substance released by vascular endothelial cells and is a key factor in maintaining the normal function of endothelial cells. The normal function of endothelial cells is crucial to maintaining the dilation state of blood vessels.

[0031] 3. Compared with the existing technology, the trumpet-shaped muzzle can increase the contact area of ​​the patient's wound, thereby achieving a higher absorption rate of physiotherapy factors.

[0032] 4. Compared with the prior art, the physiotherapy device adds a pulse modulation signal to reduce the average power and heat generation of the instrument, achieving energy-saving effects.

[0033] Of course, any product implementing the present invention does not necessarily need to achieve all of the above advantages at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0035] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0036] Figure 2 It is a schematic diagram of the structure of the present invention after omitting some parts;

[0037] Figure 3 It is a schematic diagram of the side structure of the nozzle of the present invention;

[0038] Figure 4 It is a schematic diagram of the main structure of the nozzle of the present invention;

[0039] In the accompanying drawings, the reference numerals of the various components are as follows:

[0040] 1- Pulse microwave modulation generator, 2- Microwave inlet, 3- Air inlet, 4- Adjustment knob, 5- Center electrode, 6- Plasma jet, 7- NO gas, 8- Aluminum alloy waveguide, 9- Quartz body,

[0041] 10-quartz body bracket, 11-screen, 12-device housing, 13-fan, 14-power lithium battery, 15-control switch, 16-air bottle. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0043] like Figure 1-Figure 4 As shown, this embodiment provides a pulse microwave air plasma jet therapy device, including a pulse microwave modulation generator 1, a microwave inlet 2, an air inlet 3, an adjustment knob 4, a central electrode 5, a plasma jet 6, NO gas 7, an aluminum alloy waveguide 8, a quartz body 9, a quartz body bracket 10, a screen 11, a device housing 12, a fan 13, a power lithium battery 14 and a control switch 15; a coaxial resonator and a fan 13 are installed inside the main body of the device housing 12, and a microwave inlet 2 and an air inlet 3 are arranged on the outside of the coaxial resonator. The microwave inlet 2 The outer end is connected to the microwave power output interface of the pulse microwave modulation generator 1; a central electrode 5 is installed inside the coaxial resonator, and a plasma jet 6 is excited at the central electrode 5; an adjusting knob 4 is installed at one end of the coaxial resonator close to the fan 13, and an aluminum alloy waveguide 8 with a screen 11 is installed at the other end of the coaxial resonator. The quartz body 9 is placed at the end of the plasma jet 6 and connected to the screen 11; one end of the quartz body bracket 10 is close to the quartz body 9, and the other end is fixed to the outer shell of the aluminum alloy waveguide 8, and the quartz body bracket 10 is used to support the quartz body 9.

[0044] A power lithium battery 14 for supplying power to various power-consuming components is installed inside the handle of the device housing 12 , and a control switch 13 is installed outside the handle of the device housing 12 .

[0045] In this embodiment, the control switch 15 is connected to the coaxial resonator, the fan 13 and the power lithium battery 14 respectively.

[0046] In this embodiment, the air inlet 3 is supplied with gas by an air bottle 16, and the gas component thereof is air.

[0047] In this embodiment, the central electrode 5 is a needle electrode capable of overcoming the atmospheric pressure breakdown field strength and maintaining the discharge power, and is made of stainless steel.

[0048] In this embodiment, the adjustment knob 4 can adjust the position selection of the microwave inlet 2 so that the coaxial resonator reaches the optimal resonant circuit state, that is, the impedance matching degree between the microwave power source and the discharger reaches the highest level, and it is easier to excite the air to generate a plasma jet 6.

[0049] In this embodiment, the plasma jet 6 is generated by ionizing the air under the action of microwave energy; under the traction of the pressure difference airflow, a plasma jet of a certain length is formed; the pulsed microwave radiation enters the interior of the tissue, and the product of the air plasma jet 6 is hot air rich in NO.

[0050] In this embodiment, the inner wall of the aluminum alloy waveguide 8 is very smooth, which is conducive to the transmission of microwave energy.

[0051] In this embodiment, the quartz body 9 is made of high-purity quartz with a silicon dioxide content of more than 99.95%, and is embedded with metal copper wires.

[0052] In this embodiment, the voltage of the power lithium battery 14 is 25V.

[0053] In this embodiment, the screen 11 is made of zirconium oxide fiber. According to the structural characteristics of ceramic powder and zirconium oxide fiber cloth, a "bidirectional" interface modification method is adopted to improve the bonding between the interfaces. With the help of the excellent wrapping compatibility of zirconium oxide fiber cloth, zirconium oxide fiber cloth with impact resistance, stress tensile resistance, light weight and high temperature resistance is combined with ceramic powder to construct a zirconium oxide fiber mesh with a mesh structure. The prepared zirconium oxide fiber mesh has strong high temperature resistance, high elasticity and strong insulation ability.

[0054] The specific application of this embodiment is as follows: the microwave signal generator in the pulse microwave modulation generator has an operating frequency of 2.45 GHz, a pulse modulation frequency of 10 kHz, a duty cycle adjusted to 0.2, and an incident power of 180 W. After the microwave energy enters the coaxial resonator, air is introduced from the air inlet, and a plasma jet is excited at the end of the central electrode, while yellowish NO hot air is generated. The direct current generated by the power lithium battery supplies power to the fan, and the wind direction of the fan is toward the nozzle so that more NO hot air can be blown to the wound. The quartz body is designed to disperse the plasma jet and use its high temperature resistance to slow down the temperature of the plasma jet; at the same time, the screen is designed to evenly disperse the distribution of NO molecules and reduce their temperature. In order to blow more NO hot air to the wound, the wind direction of the fan is set to blow toward the nozzle. This ensures that NO hot air can be delivered to the patient at a uniform and appropriate temperature.

[0055] When microwave electromagnetic waves are emitted into biological tissues as a physiotherapy factor, the microwave electromagnetic waves can be absorbed by water molecules, causing the temperature of biological tissues to rise, the capillaries in biological tissues to expand, and the blood flow to increase several times. Pulsed microwave radiation can enter the interior of tissues, and the product of the air plasma jet is a human body surface physiotherapy rich in NO hot air, achieving a three-dimensional physiotherapy effect. NO is a gas molecule with biological activity. When NO exists in the form of hot air, the hot air can increase the temperature of the blood vessel wall, thereby increasing the activity and diffusion rate of NO molecules. In this way, NO can more effectively combine with vascular smooth muscle cells and play its role in relaxing vascular smooth muscle. Therefore, NO hot air can dilate blood vessels, increase blood flow, and lower blood pressure. At the same time, NO molecules are one of the most physiologically active substances released by vascular endothelial cells, and they are a key factor in maintaining the normal function of endothelial cells. The normal function of endothelial cells is essential for maintaining the dilation state of blood vessels and overall cardiovascular health. In addition, the physiotherapy device adds a pulse modulation signal to reduce the average power and heat generation of the instrument, achieving an energy-saving effect.

[0056] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A pulse microwave air plasma jet physiotherapy device, characterized in that: It comprises a pulse microwave modulation generator (1), a microwave inlet (2), an air inlet (3), an adjustment knob (4), a central electrode (5), a plasma jet (6), NO gas (7), an aluminum alloy waveguide (8), a quartz body (9), a quartz body bracket (10), a screen (11), a device housing (12), a fan (13), a power lithium battery (14) and a control switch (15); A coaxial resonator and a fan (13) are installed inside the main body of the device housing (12); a microwave inlet (2) and an air inlet (3) are arranged opposite to each other on the outside of the coaxial resonator; and the outer end of the microwave inlet (2) is connected to the microwave power output interface of the pulse microwave modulation generator (1); A central electrode (5) is installed inside the coaxial resonator, and the plasma jet (6) is excited at the central electrode (5); The coaxial resonator is provided with an adjustment knob (4) at one end thereof close to the fan (13); an aluminum alloy waveguide (8) with a screen (11) is provided at the other end thereof; the quartz body (9) is placed at the end of the plasma jet (6) and connected to the screen (11); and the quartz body support (10) is used to support the quartz body (9); A power lithium battery (14) for supplying power to various power-consuming components is installed inside the handle of the device housing (12), and a control switch (15) is installed outside the handle of the device housing (12).

2. A pulse microwave air plasma jet therapy device according to claim 1, characterized in that: The control switch (15) is respectively connected to the coaxial resonator, the fan (13) and the power lithium battery (14).

3. A pulse microwave air plasma jet therapy device according to claim 1, characterized in that: The operating frequency of the pulse microwave modulation generator (1) is 2.45 GHz. The generator uses a pulse modulation technology with a pulse modulation frequency of 10 kHz and a duty cycle of 0.

2.

4. A pulse microwave air plasma jet therapy device according to claim 1, characterized in that: The air inlet (3) is supplied with gas from an air bottle (16), and the gas component of the gas is air.

5. A pulse microwave air plasma jet therapy device according to claim 1, characterized in that: The central electrode (5) is a needle electrode capable of overcoming the atmospheric pressure breakdown field strength and maintaining the discharge power, and is made of stainless steel.

6. A pulse microwave air plasma jet therapy device according to claim 1, characterized in that: The adjustment knob (4) can adjust the position of the microwave inlet (2) so that the coaxial resonator reaches an optimal resonant circuit state, that is, the impedance matching degree between the microwave power source and the discharger reaches the highest level, and at this time, the air is more easily excited to generate a plasma jet (6).

7. The pulse microwave air plasma jet therapy device according to claim 1, characterized in that: The plasma jet (6) is generated by ionizing air under the action of microwave energy; under the traction of the pressure difference airflow, a plasma jet of a certain length is formed; the pulse microwave radiation enters the interior of the tissue, and the product of the air plasma jet (6) is hot air rich in NO.

8. The pulse microwave plasma jet therapy device according to claim 1, characterized in that: The quartz body (9) is made of high-purity quartz with a silicon dioxide content of more than 99.95%, and is embedded with metal copper wires; one end of the quartz body bracket (10) is closely attached to the quartz body (9), and the other end is fixed to the outer shell of the aluminum alloy waveguide (8).

9. The pulse microwave plasma jet therapy device according to claim 1, characterized in that: The voltage of the power lithium battery (14) is 25V.

10. The pulse microwave plasma jet therapy device according to claim 1, characterized in that: The screen (11) is made of oxidized white fiber.

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