A multi-position low-temperature plasma handle

Abstract

The present invention discloses a multi-position low-temperature plasma handle, comprising a handle body and a multi-position nozzle, wherein the handle body is detachably connected to the multi-position nozzle, the multi-position nozzle comprises a nozzle housing, an electrode base, and an electrode, wherein the top center of the nozzle housing is provided with an electrode cavity, the electrode base is arranged in the nozzle housing and its end extends out of the nozzle housing, the electrode is distributed in a concave form and one end extends out of the electrode cavity; the interior of the handle body has a cavity, a high-voltage generating module and a high-voltage conduction module are installed in the cavity, one end of the high-voltage conduction module is connected to the high-voltage generating module, and the other end is connected to the end of the electrode base. The present invention is convenient for replacing nozzles, can greatly reduce cross infection between patients, and generates plasma that is evenly distributed, stable, and fits the surface curve of human skin through electrodes distributed in different concave forms, which is convenient for realizing precise treatment and efficient treatment.

Description

Technical Field

[0001] The invention relates to the field of low-temperature plasma treatment equipment, and in particular to a multi-position low-temperature plasma handle. Background Art

[0002] Plasma is an ionized gaseous substance composed of positive and negative ions, electrons, etc. generated by the ionization of atoms or atomic groups. Low-temperature plasma has biomedical effects such as promoting skin wound healing, sterilization, and inactivating cells. Low-temperature plasma therapy is a new treatment method that uses modern electrical technology to stimulate the generation of plasma substances in biological tissues, destroy and eliminate diseased tissues, and promote skin wound healing.

[0003] There are many reports on low-temperature plasma handles in the prior art, such as patents with application numbers 201711152132.6, 201811235432.5, and 201610756953.X. Among them, the patent with announcement number CN209474789U discloses a plasma skin treatment device and a handle assembly thereof, wherein the plasma treatment handle assembly comprises a handle and a treatment head detachably connected to one end of the handle, and the other end of the handle is connected to an external treatment host; the treatment head comprises an electrode head, including an electrode array, and the electrode head generates plasma on the electrode array by connecting to a plasma power source in the external treatment host.

[0004] The handles for low-temperature plasma therapy devices described in the prior art still have the following technical problems: (1) They all use fixed and immutable treatment end devices to implement treatment, which is not conducive to achieving accurate and efficient treatment in actual use; (2) They are difficult to disinfect, which is not conducive to achieving hygiene requirements and is not conducive to one-to-one use and specific treatment among patients. Summary of the invention

[0005] In order to solve the above technical problems, the purpose of the present invention is to provide a multi-position low-temperature plasma handle. By detachably connecting the handle body with the multi-position nozzle, it is convenient to replace the nozzle, which can greatly reduce cross-infection between patients. Through the electrodes distributed in different concave forms, a plasma that is evenly distributed, stable, and fits the surface curve of human skin is generated, which is convenient for accurate treatment and efficient treatment. By setting an in-place switch to determine whether the nozzle is correctly connected, and setting an identification module to identify a specific nozzle, the safety of the equipment is improved and the incidence of medical accidents is reduced.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] The present invention provides a multi-position low-temperature plasma handle, comprising a handle body and a multi-position nozzle, wherein the handle body is detachably connected to the multi-position nozzle, and the multi-position nozzle comprises: a nozzle housing, an electrode base, and an electrode, wherein an electrode cavity is provided at the top center of the nozzle housing, the electrode base is arranged in the nozzle housing and its end extends out of the nozzle housing, and the electrode is distributed in a concave form and one end extends out of the electrode cavity;

[0008] The handle body has a cavity inside, in which a high-voltage generating module and a high-voltage conducting module are installed, one end of the high-voltage conducting module is connected to the high-voltage generating module, and the other end is connected to the end of the electrode base;

[0009] The top of the handle body and the positions on both sides of the bottom of the nozzle shell are respectively provided with an in-position switch and an identification module.

[0010] As a further solution of the present invention, the electrode cavity is cylindrical, and the electrode ring array is distributed on the electrode base.

[0011] As a further solution of the present invention, the electrode cavity is in the shape of a cuboid, and a rectangular array of electrodes is distributed on the electrode base.

[0012] As a further solution of the present invention, an opening is provided at the top of the handle body, the opening has a slot, a sliding block is provided at the bottom of the nozzle housing, and the handle body is slidably connected to the nozzle housing.

[0013] As a further solution of the present invention, the handle body is cylindrical, and the bottom of the handle body is provided with a neutral electrode for connecting to the human body surface and a power connector for connecting to the low-temperature plasma treatment equipment.

[0014] As a further solution of the present invention, the electrode base is in elastic contact with the high voltage conduction module.

[0015] As a further solution of the present invention, the high voltage generating module is insulated by an insulating potting glue.

[0016] Beneficial effects of the present invention:

[0017] 1. The multi-position low-temperature plasma handle of the present invention has a detachable connection between the handle body and the multi-position nozzle, which is convenient for replacing the nozzle and can greatly reduce cross-infection between patients. Through the electrodes distributed in different concave forms, a plasma that is evenly distributed, stable, and fits the surface curve of human skin is generated, which is convenient for achieving precise and efficient treatment.

[0018] 2. By setting the in-place switch to determine whether the nozzle is correctly connected, and setting the identification module to identify a specific nozzle, when different nozzles are inserted, electrical switches at different positions can be triggered, and the inserted nozzle can be identified from the signal, thereby improving the safety of the equipment and reducing the incidence of medical accidents.

[0019] 3. After the multi-position nozzle is placed close to the patient's wound area, the high-voltage generating module is in elastic contact with the high-voltage conducting module. The high-voltage generating module generates 2kV-20kV high-voltage direct current that can excite plasma and the current meets the treatment requirements. The current is conducted to the electrode along the high-voltage conducting module and the electrode base to generate plasma for treatment, thereby improving the safety of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below in conjunction with the accompanying drawings.

[0021] Figure 1 It is a cross-sectional view of the multi-position low-temperature plasma handle of the present invention.

[0022] Figure 2 It is a structural schematic diagram of a multi-position nozzle of the present invention.

[0023] Figure 3 It is a schematic structural diagram of another multi-position nozzle of the present invention.

[0024] Figure 4 It is a schematic diagram of the multi-position low-temperature plasma handle of the present invention connected to the plasma therapy device host and the human body.

[0025] Figure 5 It is a structural principle diagram of the high voltage generating module of the present invention.

[0026] In the figure: 1. handle body; 2. high voltage generating module; 3. high voltage conduction module; 4. multi-position nozzle; 5. in-position switch; 6. identification module; 7. working switch; 8. working indicator light; 9. power-on indicator light; 10. neutral electrode; 11. power connector; 21. power conversion unit; 22. drive module; 23. primary boost unit; 24. secondary boost unit; 25. high voltage output unit; 41. nozzle housing; 42. electrode base; 43. electrode; 44. electrode cavity. DETAILED DESCRIPTION

[0027] 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.

[0028] Example 1

[0029] See also Figure 1 , 2As shown in Figures 4 and 5, a multi-position low-temperature plasma handle for skin treatment in this embodiment comprises a handle body 1 and a multi-position nozzle 4, wherein the handle body 1 and the multi-position nozzle 4 are detachably connected. Specifically, the multi-position nozzle 4 comprises: a nozzle housing 41, an electrode base 42, and an electrode 43. An electrode cavity 44 is provided at the top center of the nozzle housing 41. The electrode base 42 is disposed in the nozzle housing 41 and its end extends out of the nozzle housing 41. The electrode 43 is distributed in a concave form and one end extends out of the electrode cavity 44. In this embodiment, the electrode cavity 44 is cylindrical, and the electrodes 43 are distributed in a ring array on the electrode base 42.

[0030] The handle body 1 has a cavity inside, in which a high voltage generating module 2 and a high voltage conducting module 3 are installed, one end of the high voltage conducting module 3 is connected to the high voltage generating module 2, and the other end is connected to the end of the electrode base 42. The high voltage generating module 2 is installed and fixed inside the handle body 1, insulated by an insulating potting glue, and includes a shell and internal circuit components, which are used to generate high voltage (2kV to 20kV) and conduct it to the multi-position nozzle 4.

[0031] Specifically, a high voltage generating module of this embodiment is as follows: Figure 5 As shown, it is composed of a power conversion unit 21, a drive module 22, a primary boost unit 23, a secondary boost unit 24, and a high-voltage output unit 25. The power conversion unit 21 is implemented by a switch tube P75N75, which converts the input low-voltage DC into AC. The drive module 22 is implemented by a chip UC3845, which generates a PWM high-frequency signal and provides it to the power conversion unit 21. The primary boost unit 23 is a 100-fold high-frequency transformer, and the secondary boost unit 24 is implemented by a diode 2CL77, which is used to further boost and rectify the circuit, and the output is a high-voltage DC. The high-voltage output unit 25 is composed of a high-voltage resistor network, which can realize short-circuit protection and current limiting functions. The high-voltage generation module 2 ultimately generates high-voltage DC that can excite plasma and whose current meets the treatment requirements. The high-voltage conduction module 3 is composed of a pogopin telescopic conductive probe, which ensures good elastic contact with the electrode base 42.

[0032] The multi-position nozzle 4 is inserted and fixed from the top of the handle body 1 to achieve good contact with the high-voltage conduction module 3. The electrode base 42 is in elastic contact with the high-voltage conduction module 3. An in-place switch 5 and an identification module 6 are respectively provided at the top of the handle body 1 and at the positions on both sides of the bottom of the nozzle housing 41. The in-place switch 5 is used to determine whether the nozzle is correctly connected. The identification module 6 is used to identify a specific nozzle. When different nozzles are inserted, electrical switches at different positions can be triggered, thereby identifying the inserted nozzle from the signal. Optionally, the in-place switch 5 uses the Omron touch switch B3F-1000. The identification module 6 is composed of a DICOMON ultra-small micro switch SSM-01.

[0033] The top of the handle body 1 is provided with an opening, the opening has a slot, the bottom of the nozzle housing 41 is provided with a slider, and the handle body 1 is slidably connected to the nozzle housing 41. Of course, the handle body 1 and the nozzle housing 41 can also be detachably connected in a normally open non-self-locking manner, such as a snap connection, a threaded connection, or a hinge connection.

[0034] The handle body 1 is cylindrical and convenient for the operator to hold. The bottom of the handle body 1 is provided with a neutral electrode 10 for connecting to the human body surface and a power connector 11 for connecting to the low-temperature plasma treatment equipment. The neutral electrode 10 is connected to the patient's skin during treatment and forms a conductive circuit together with the multi-position nozzle 4. The surface of the handle body 1 is installed with a working switch 7, a working indicator light 8, and a power-on indicator light 9.

[0035] The multi-position low-temperature plasma handle for skin treatment of this embodiment is used to connect the power connector 11 to the plasma therapy device host, and the power-on indicator light 9 lights up; connect the neutral electrode 10 to the patient's skin, press the working switch 7, and the working indicator light 8 lights up; place the multi-position nozzle 4 close to the patient's wound area, and the high-voltage generating module 2 is in elastic contact with the high-voltage conducting module 3. The high-voltage generating module 2 generates 2kV-20kV high voltage electricity, which is conducted along the high-voltage conducting module 3 and the electrode base 42 to the electrode 43, generating plasma and starting treatment.

[0036] Example 2

[0037] See also Figure 1 , 3 As shown in FIG. 4 , this embodiment is a multi-position low-temperature plasma handle for skin treatment, the main structure of which is the same as that of Embodiment 1, except that the electrode cavity 44 is in the shape of a rectangular parallelepiped, and the electrodes 43 are distributed in a rectangular array on the electrode base 42 .

[0038] The above contents are merely examples and explanations of the structure of the present invention. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the invention or exceed the scope defined by the claims, they should all fall within the protection scope of the present invention.

Claims

1. A multi-position low-temperature plasma handle, comprising a handle body and a multi-position nozzle, wherein the handle body and the multi-position nozzle are detachably connected, characterized in that: The multi-position nozzle comprises: a nozzle housing, an electrode base, and an electrode. An electrode cavity is opened at the top center of the nozzle housing. The electrode base is arranged in the nozzle housing and its end extends out of the nozzle housing. The electrode is distributed in a concave form and one end extends out of the electrode cavity. The handle body has a cavity inside, in which a high-voltage generating module and a high-voltage conducting module are installed, one end of the high-voltage conducting module is connected to the high-voltage generating module, and the other end is connected to the end of the electrode base; The top of the handle body and the positions on both sides of the bottom of the nozzle housing are respectively provided with an in-position switch and an identification module; The top of the handle body is provided with an opening, the opening has a slot, the bottom of the nozzle shell is provided with a sliding block, and the handle body is slidably connected with the nozzle shell; The handle body is cylindrical, and the bottom of the handle body is provided with a neutral electrode for connecting to the human body surface and a power connector for connecting to the low-temperature plasma treatment equipment; The in-place switch is used to determine whether the multi-position nozzle is correctly connected, and the identification module is used to identify a specific multi-position nozzle. When different multi-position nozzles are inserted, electrical switches at different positions can be triggered, and the inserted multi-position nozzle can be identified from the signal.

2. The multi-position low-temperature plasma handle according to claim 1, characterized in that: The electrode cavity is cylindrical, and the electrode ring array is distributed on the electrode base.

3. The multi-position low-temperature plasma handle according to claim 1, characterized in that: The electrode cavity is in the shape of a cuboid, and a rectangular array of electrodes is distributed on the electrode base.

4. The multi-position low-temperature plasma handle according to claim 1, characterized in that: The electrode base is in elastic contact with the high voltage conduction module.

5. The multi-position low-temperature plasma handle according to claim 1, characterized in that: The high voltage generating module is insulated by insulating potting glue.

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