Microneedle Component, Radiofrequency Microneedle Therapeutic Apparatus and Microneedle Treatment Control Method

Abstract

The present invention discloses a microneedle component, a radiofrequency microneedle therapeutic apparatus and a microneedle treatment control method. Among them, a microneedle component includes: a first needle plate, on which a plurality of first microneedle electrodes and a plurality of through holes are provided. The length direction of the first microneedle electrodes is parallel to the axial direction of the through holes, and the plurality of first microneedle electrodes and the plurality of through holes are arranged in an alternating manner; and a second needle plate, which is disposed on the side of the first needle plate away from the first microneedle electrodes, and the second needle plate is movable along the length direction of the first microneedle electrodes; and the second needle plate is provided with a plurality of second microneedle electrodes, and the second microneedle electrodes penetrate through the through holes and protrude from the first needle plate. In the present invention, the first microneedle electrodes and the second microneedle electrodes can effectively cover various parts of the target tissue in the depth direction for treatment, thereby improving the treatment effect.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a microneedle component, a radio frequency microneedle therapeutic apparatus and a microneedle therapeutic control method. Background Art

[0002] Radiofrequency microneedle therapy is a minimally invasive radiofrequency fractional technology that uses tiny microneedles to precisely apply radiofrequency (RF) energy to target tissues at different depths. It can be used for facial rejuvenation applications such as skin tightening and scar removal. It can also be used to treat acne and axillary hyperhidrosis.

[0003] However, the current radiofrequency microneedle therapy device has a fixed length of microneedle electrode, and only the needle tip of the microneedle electrode not covered by the insulating layer can output radiofrequency energy. For target tissues with a long spreading area in depth, the needle tip cannot effectively cover all parts of the target tissue for treatment. Summary of the Invention

[0004] The main purpose of the present invention is to provide a microneedle component, a radio frequency microneedle therapeutic device and a microneedle treatment control method, aiming to solve the technical problem in the prior art that the microneedle component has an unsatisfactory therapeutic effect on target tissues with a long spreading area in depth.

[0005] To achieve the above-mentioned object, the present invention provides a microneedle component comprising:

[0006] a first needle plate, wherein the first needle plate is provided with a plurality of first microneedle electrodes and a plurality of through holes, wherein the length direction of the first microneedle electrodes is parallel to the axial direction of the through holes, and the plurality of first microneedle electrodes and the plurality of through holes are staggered; and

[0007] The second needle plate is arranged on the side of the first needle plate away from the first microneedle electrode, and the second needle plate can move along the length direction of the first microneedle electrode; and the second needle plate is provided with a plurality of second microneedle electrodes, which pass through the through hole and protrude from the first needle plate.

[0008] Optionally, also include:

[0009] A spacing adjustment device is provided between the first needle plate and the second needle plate, and is used to adjust the spacing between the first needle plate and the second needle plate.

[0010] Optionally, the spacing adjustment device includes a first linear driver, one end of the first linear driver is connected to the first needle plate, and the other end of the first linear driver is connected to the second needle plate.

[0011] Optionally, the first microneedle electrodes and the through holes are arranged in an array.

[0012] Optionally, the length of the first microneedle electrode is less than the length of the second microneedle electrode.

[0013] In a second aspect, the present invention further provides a radiofrequency microneedle treatment apparatus, including a microneedle member.

[0014] In a third aspect, the present invention further provides a microneedle treatment control method, which is applied to a controller of a radiofrequency microneedle treatment apparatus, and the control method includes the following steps:

[0015] After the first microneedle electrode and the second microneedle electrode are inserted into the human body and start to output radiofrequency energy, according to the preset second insertion depth of the second microneedle electrode, determine the moving interval of the second microneedle electrode in the length direction;

[0016] Send a first control signal to the first linear driver to make the first linear driver drive the second microneedle electrode to move in the moving interval along the length direction at a preset speed.

[0017] Optionally, before the step of obtaining movement information after the first microneedle electrode and the second microneedle electrode are inserted into the human body and start to output radiofrequency energy, the movement information includes the preset movement direction and preset distance of the second needle plate, the control method further includes:

[0018] Obtain the preset first insertion depth of the first microneedle electrode and the preset second insertion depth of the second microneedle electrode;

[0019] According to the preset first insertion depth and the preset second insertion depth, determine the preset distance between the first needle plate and the second needle plate;

[0020] According to the preset distance, send a second control message to the first linear driver so that the first linear driver drives the second needle plate to move until the distance between the first needle plate and the second needle plate is equal to the preset distance.

[0021] Optionally, the step of determining the moving interval of the second microneedle electrode in the length direction according to the preset second insertion depth of the second microneedle electrode includes:

[0022] According to the part to be treated, determine the minimum energy output depth of the second microneedle electrode;

[0023] According to the insertion depth of the second microneedle electrode and the minimum energy output depth, determine the moving interval of the second microneedle electrode in the length direction.

[0024] Optionally, the microneedle member further includes a power supply module;

[0025] After the step of sending a first control signal to the linear driver to cause the first linear driver to drive the second microneedle electrode to move along the length direction at a preset speed within the moving interval, the control method further includes:

[0026] Sending a second control signal to the power supply module to cause the power supply module to supply either a first electrode polarity or a second electrode polarity to at least one of the plurality of second microneedle electrodes during the movement within the moving interval at a preset speed, and supply the other of the first electrode polarity and the second electrode polarity to the remaining second microneedle electrodes among the plurality of second microneedle electrodes.

[0027] Optionally, after sending the first control signal to the first linear driver to cause the first linear driver to drive the second microneedle electrode to move along the length direction at a preset speed within the moving interval, the control method further includes:

[0028] Obtaining the impedance value of the microneedle component and a preset impedance threshold;

[0029] Updating the preset spacing according to the impedance value and the preset impedance threshold;

[0030] Sending a second control message to the first linear driver according to the preset spacing, so that the first linear driver drives the second needle plate to move until the spacing between the first needle plate and the second needle plate is equal to the preset spacing.

[0031] Optionally, the radio frequency microneedle therapeutic apparatus further includes a second linear driver, and the microneedle component is connected to the moving end of the second linear driver;

[0032] After the first microneedle electrode and the second microneedle electrode penetrate into the human body and start to output radio frequency energy, and after determining the moving interval of the second microneedle electrode in the length direction according to the preset second penetration depth of the second microneedle electrode, the control method further includes:

[0033] Sending a third control signal to the second linear driver to cause the second linear driver to drive the microneedle component to move along the length direction at a preset speed.

[0034] The microneedle component provided by the technical solution of the present invention uses a second needle plate and a first needle plate that can move relative to each other, and a plurality of second microneedle electrodes on the second needle plate and a plurality of first microneedle electrodes on the first needle plate are arranged in an interleaved manner. Thus, the microneedle array formed by the plurality of first microneedle electrodes and the plurality of second microneedle electrodes can include two needle tip distribution regions, and the two needle tip distribution regions are spaced apart in the depth direction of the human body and the spacing is adjustable. Thereby, the coverage area of the needle tip portion of the microneedle electrode is increased. Furthermore, for a target tissue with a long spreading area in depth, the needle tip portion of the microneedle array can effectively cover all parts of the target tissue for treatment, thereby improving the treatment effect.

[0035] The microneedle treatment control method provided by the present invention controls the second needle plate to move along the depth direction of the target tissue under the drive of the first linear driver, and the second microneedle electrodes continuously release radio frequency energy during the movement, thereby effectively treating all parts of the target tissue and further improving the radio frequency treatment effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the structures shown in these drawings.

[0037] Figure 1 It is a schematic structural diagram of an embodiment of the microneedle component of the present invention;

[0038] Figure 2 It is a schematic layout diagram of the through holes and the first microneedle electrodes of an embodiment of the microneedle component of the present invention;

[0039] Figure 3 It is a schematic structural diagram of the radio frequency microneedle therapeutic apparatus of the present invention;

[0040] Figure 4 It is a schematic flowchart of the first embodiment of the microneedle treatment control method of the present invention;

[0041] Figure 5 It is a schematic diagram of the moving interval of the second microneedle electrode of the microneedle treatment control method of the present invention;

[0042] Figure 6 It is a schematic flowchart of the second embodiment of the microneedle treatment control method of the present invention;

[0043] The realization, functional features and advantages of the object of the present invention will be further described in conjunction with the embodiments with reference to the drawings. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0044] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0045] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0046] In the present invention, unless otherwise clearly defined and limited, terms such as "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and can be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0047] In addition, if there is a description involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or the solution where A and B are satisfied simultaneously. In addition, the technical solutions between the embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present invention.

[0048] Refer to Figure 1 , the embodiments of the present invention provide a microneedle component, and the microneedle component includes a first needle plate 210 and a second needle plate 220.

[0049] Among them, the first needle plate 210 is provided with a plurality of first microneedle electrodes 211 and a plurality of through holes 212. The length direction of the first microneedle electrodes 211 is parallel to the axial direction of the through holes 212, and the plurality of first microneedle electrodes 211 and the plurality of through holes 212 are arranged alternately.

[0050] Specifically, the first needle plate 210 includes a base plate, a PCB, and first microneedle electrodes 211. The base plate of the first needle plate 210 is provided with through-holes 212, which are arranged alternately with the first microneedle electrodes 211 on the first needle plate 210. The through-holes 212 and first microneedle electrodes 211 are arranged in an array.

[0051] See also Figure 2 As an option of this embodiment, the first needle plate includes multiple rows of first microneedle electrodes 211 and multiple rows of through holes 212, and the multiple rows of through holes 212 and the multiple rows of first microneedle electrodes 211 are alternately arranged. Each row of through holes 212 is parallel to each row of first microneedle electrodes 211.

[0052] See also Figure 1 As another option of this embodiment, the first needle plate includes multiple rows of first microneedle electrodes 211 and multiple rows of through holes 212, and adjacent rows of first microneedle electrodes 211 are staggered, and each through hole 212 is arranged between four adjacent first microneedle electrodes 211 arranged in a diamond shape.

[0053] The second needle plate 220 is arranged on the side of the first needle plate 210 away from the first microneedle electrode 211, and the second needle plate 220 can move along the length direction of the first microneedle electrode 211; and the second needle plate 220 is provided with a plurality of second microneedle electrodes 221, and the second microneedle electrodes 221 pass through the through holes 212 and protrude from the first needle plate 210.

[0054] In this embodiment, the second needle plate 220 also includes a base plate, a PCB, and second microneedle electrodes 221. The second microneedle electrodes 221 on the second needle plate 220 extend from one side of the first needle plate 210 through the through-holes 212 of the first needle plate 210 and protrude from the other side of the first needle plate 210. The second needle plate 220 is movable relative to the first needle plate 210, meaning that the second microneedle electrodes 221 are movable within the through-holes 212, thereby defining the direction of movement of the second needle plate 220.

[0055] The length of the second microneedle electrode 221 may be the same as or different from that of the first microneedle electrode 211, and the embodiment of the present invention does not limit this. For example, the length of the first microneedle electrode 211 is smaller than that of the second microneedle electrode 221. Since the first needle plate 210 and the second needle plate 220 can move relative to each other, the needle tip distribution area of the first microneedle electrode 211 and the needle tip distribution area of the second microneedle electrode 221 can occupy or cover more target tissue in the length direction, and can also penetrate into the same depth.

[0056] When the microneedle component 200 provided in this embodiment is in use, before the first microneedle electrode 211 and the second microneedle electrode 221 are inserted into the human body, the distance between the first microneedle electrode 211 and the second microneedle electrode 221 can be adjusted according to the treatment site to be treated, so that the length distribution of the tips of the first microneedle electrode 211 and the second microneedle electrode 221 not only enables easy needle insertion, but also enables the first microneedle electrode 211 and the second microneedle electrode 221 to cover more target tissues in the depth direction.

[0057] Therefore, in this embodiment, the second needle plate 220 that can move relative to the first needle plate 210 is adopted, and the plurality of second microneedle electrodes 221 of the second needle plate 220 and the plurality of first microneedle electrodes 211 of the first needle plate 210 are arranged in an interleaved manner, so that the microneedle array formed by the plurality of first microneedle electrodes 211 and the plurality of second microneedle electrodes 221 includes two tip distribution regions, and the two tip distribution regions can be spaced apart in the depth direction of the human body and the distance therebetween is adjustable, thereby increasing the coverage area of the tip portions of the microneedle electrodes. Furthermore, for target tissues with a longer spreading region in depth, the tip portions of the microneedle array can effectively cover all parts of the target tissue for treatment, thereby improving the treatment effect.

[0058] It is easy to understand that the distance between the movable microneedles and the fixed microneedles can be adjusted manually, and in some embodiments, it can also be adjusted by a distance adjusting device, which is arranged between the first needle plate 210 and the second needle plate 220.

[0059] For example, the distance adjusting device can include a screw rod threadedly connected to the first needle plate 210, and the screw rod is connected with a nut, and the nut is rotatably connected to the second needle plate 220. Thus, when the nut is rotated, the second needle plate 220 can be moved away from the first needle plate 210.

[0060] Or, referring to Figure 1 , the distance adjusting device can also be a first linear driver 230, one end of the first linear driver 230 is connected to the first needle plate 210, and the other end is connected to the second needle plate 220. In this embodiment, the first linear driver 230 can be a linear motor, or can also be a mechanism such as a push rod, and the embodiments of the present invention do not limit this.

[0061] In one embodiment, the microneedle component 200 further includes a distance measuring sensor, which is arranged on the first needle plate 210 or the second needle plate 220 and is used to measure the distance between the first needle plate 210 and the second anvil plate 220, so as to facilitate the controller of the radiofrequency therapeutic instrument to monitor the actual distance between the first needle plate 210 and the second needle plate 220, and to monitor whether the actual distance meets the preset distance. Among them, the distance measuring sensor can be a laser rangefinder or an infrared rangefinder, and the embodiments of the present invention do not limit this.

[0062] It is worth mentioning that in this embodiment, the first needle plate 210 can be the needle plate on the side close to the human body during the treatment process. At this time, the second needle plate 220 is the needle plate on the side far from the human body. Or, the second needle plate 220 can be the needle plate on the side close to the human body during the treatment process, and the first needle plate 210 can be the needle plate on the side far from the human body during the treatment process. The comparison in the embodiments of the present invention is not limited.

[0063] Refer to Figure 3 , Figure 3 which is a schematic structural diagram of the radio frequency microneedle therapeutic apparatus according to the embodiment of the present invention.

[0064] The radio frequency microneedle therapeutic apparatus includes a power supply module 100, a microneedle member 200, and a controller 400.

[0065] Among them, the power supply module 100 may include a power supply 101 and a switch switching circuit 102. Among them, the output frequency of the power supply 101 can be 0.3 MHz - 100 MHz, and the power supply 101 can be a continuous output power supply or a pulse output power supply or a power supply that outputs continuously and in pulses together. The power supply 101 can include only one, that is, a single power supply 101 supplies power to all the microneedle electrodes 200. Or the power supply 101 can also include multiple ones, and multiple power supplies 101 are respectively connected to different microneedle electrodes 200.

[0066] The switch switching circuit 102 in the power supply module 100 is used to switch the connection port between the microneedle electrode 200 and the power supply 101, so that the microneedle electrode 200 can be connected to the positive electrode of the power supply 101 and be positive during the treatment process, or be connected to the negative electrode of the power supply 101 and be negative.

[0067] Among them, the specific structure of the microneedle member 200 refers to the above embodiment. Since this radio frequency microneedle therapeutic apparatus adopts all the technical solutions of the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be elaborated here one by one.

[0068] The first microneedle electrode 211 and the second microneedle electrode 221 on the microneedle member 200 can both be set as positive electrodes or negative electrodes according to needs, and the electrode polarities of each first microneedle electrode 211 and second microneedle electrode 221 can be switched and alternately serve as positive and negative electrodes during different operation time periods. Specifically, it can be achieved by connecting each first microneedle electrode 211 and second microneedle electrode 221 to different ports of the power supply through the switch switching circuit.

[0069] The controller 400 includes at least one processor 401, a memory 402, and a microneedle treatment control program stored on the memory 402 and executable on the processor 401. The microneedle treatment control program is configured to implement the steps of the microneedle treatment control method. In some embodiments, the processor 401 and the memory 402 are integrated on the same chip or circuit board; in some other embodiments, either or both of the processor 401 and the memory 402 can be implemented on separate chips or circuit boards. That is, the radiofrequency microneedle therapeutic apparatus may include microprocessors such as a single-chip microcomputer, a DSP, and an FPGA. Of course, in some embodiments, it may also be implemented using a dedicated chip for the radiofrequency microneedle therapeutic apparatus, and this embodiment does not limit this.

[0070] In some embodiments, the radiofrequency microneedle therapeutic apparatus further includes a second linear driver 500. The second linear driver 500 may be a linear motor. The microneedle member 200 is fixed to the moving end of the linear motor, and the length direction of the microneedle electrode is consistent with the moving direction of the linear driver 500, so that the microneedle array can reciprocate along the length direction of the microneedle electrode 200. The linear driver 500 may also be a push rod or other mechanism, which is not limited here. The second linear driver 500 is used to push the entire microneedle member 200, so that the first microneedle electrode 211 and the second microneedle electrode 221 on the microneedle member 200 move synchronously to be successively inserted into the human body. The radiofrequency microneedle therapeutic apparatus includes a housing having a cavity and the second linear driver 500. The above-mentioned microneedle member 200 is pushed out along the microneedle through hole on the housing under the drive of the second linear driver. The second linear driver 500 may be a linear motor. The microneedle member 200 is connected to the moving end of the linear motor, and the power module 100 is fixed to the fixed end of the linear motor, and the fixed end of the linear motor can be fixedly arranged in the housing of the radiofrequency therapeutic apparatus. The length direction of the microneedle electrode is consistent with the moving direction of the linear driver 500, so that the microneedle array can reciprocate along the length direction of the microneedle electrode 200. The linear driver 500 may also be a push rod or other mechanism, which is not limited here. The second linear driver 500 is used to push the entire microneedle member 200, so that the first microneedle electrode 211 and the second microneedle electrode 221 on the microneedle member 200 move synchronously to be successively inserted into the human body.

[0071] Or the second linear driver 500 includes a drive motor and a transmission rod. The microneedle member 200 is connected to the drive motor through the transmission rod, so as to push the microneedle member out when the drive motor operates.

[0072] Those skilled in the art can understand that Figure 3 the structure shown in

[0073] An embodiment of the present invention further provides a method for controlling microneedle treatment. Refer to Figure 4 , Figure 4 which is a schematic flowchart of the first embodiment of the microneedle treatment control method of the present invention.

[0074] In this embodiment, the control method includes the following steps:

[0075] Step S101: After the first microneedle electrode 211 and the second microneedle electrode 221 are inserted into the human body and start to output radio frequency energy, determine the moving interval of the second microneedle electrode 221 in the length direction according to the preset second insertion depth of the second microneedle electrode 221.

[0076] Specifically, when both the first microneedle electrode 211 and the second microneedle electrode 221 are inserted into the target tissue of the human body and reach the preset depth, for example, the first microneedle electrode 211 is inserted until the tip reaches the preset first insertion depth, and the second microneedle electrode 221 is inserted until the tip reaches the preset second insertion depth. After reaching this depth, the power supply module of the radio frequency microneedle treatment instrument starts to provide radio frequency energy for the first microneedle electrode 211 and the second microneedle electrode 221 in the microneedle member 200.

[0077] For example, during this process, the microneedle member 200 can adopt a bipolar mode, that is, in the microneedle array composed of multiple first microneedle electrodes 211 and multiple second microneedle electrodes 221, at least one first microneedle electrode 211 or the second microneedle electrode 221 is the positive electrode, and the rest are negative electrodes, so as to form a heat diffusion zone between the positive and negative microneedles. At this time, the first electrode polarity is the positive electrode and the second electrode polarity is the negative electrode. For example, only one first microneedle electrode 211 among multiple first microneedle electrodes 211 is the positive electrode, and only one second microneedle electrode 221 among multiple second microneedle electrodes 221 is the positive electrode. The rest of the first microneedle electrodes 211 and the second microneedle electrodes 221 are negative electrodes. At this time, the range of the heat diffusion zone between the positive and negative electrodes is larger in the transverse direction, so as to obtain a better treatment effect.

[0078] At the same time, when the microneedle member 200 includes a return electrode attached to the human body surface, during this process, the microneedle member 200 can also adopt a monopolar mode, that is, at this time, the electrode polarities of all the first microneedle electrodes 211 and the second microneedle electrodes 221 in the microneedle array are the same and opposite to the electrode polarity of the return electrode. For example, when all the first microneedle electrodes 211 and the second microneedle electrodes 221 in the microneedle array are positive electrodes, the return electrode is the negative electrode. Thus, a loop is formed between the deep part of the human body and the human body surface, so that the depth coverage range of the heat diffusion region is larger to improve the radio frequency treatment effect. Or, all the first microneedle electrodes 211 and the second microneedle electrodes 221 in the microneedle array can be negative electrodes, and the return electrode is the positive electrode.

[0079] And during this process, the monopolar mode and the bipolar mode of the microneedle member 200 are switched at least once.

[0080] And as an option of this embodiment, step S101 includes:

[0081] (1) Determine the minimum energy output depth of the second microneedle electrode 221 according to the treatment site to be treated.

[0082] (2) Determine the moving interval of the second microneedle electrode 221 in the length direction according to the penetration depth of the second microneedle electrode and the minimum energy output depth.

[0083] Specifically, referring to Figure 5 , the minimum energy output depth L2 is the distance from the tip of the second microneedle electrode 221 to the human body surface when the radio frequency energy transmitted by the second microneedle electrode burns the epidermal layer 1. When the depth of the tip of the second microneedle motor from the human body surface is less than this minimum energy output depth, the second microneedle electrode 221 no longer outputs radio frequency energy.

[0084] Therefore, in the length direction of the second microneedle electrode 221, by determining the maximum value of the depth of the tip of the second microneedle electrode 221 from the human body surface: the preset second penetration depth, and the minimum value: the minimum energy output depth L2, the moving interval of the second microneedle electrode 221 can be determined, that is, the energy output interval of the tip of the second microneedle electrode 221.

[0085] Step S102: Send a first control signal to the first linear driver 230 to cause the first linear driver 230 to drive the second needle plate 220 to move in the moving interval along the length direction at a preset speed.

[0086] The penetration depth of the first microneedle electrode 211 remains unchanged, and the position of the second microneedle electrode 221 is adjusted by controlling the distance between the second needle plate 220 and the first needle plate 210, that is, the second needle plate 220 is driven to move by the first linear driver 230, thereby driving the second microneedle electrode 221 to move at a preset speed.

[0087] After determining the moving range of the second microneedle electrode 221, the bottom plate of the second needle plate can drive the second microneedle electrode 221 to move within this moving range and output energy simultaneously. Specifically, the first linear driver 230 drives the second microneedle electrode 221 to move along the length direction of the second microneedle electrode 221 at a preset speed within this moving range. During this process, the power supply module 100 provides radio frequency energy for the second microneedle electrode 221, and the tip of the second microneedle electrode 221 outputs radio frequency energy. Since the first needle plate 210 is fixed and the second microneedle electrode 221 moves within the through hole 212, that is, the second microneedle electrode 221 does not have lateral displacement to avoid damaging the internal tissues of the human body. And the first linear driver 230 drives the second needle plate 220 to move at a preset speed. For example, the second needle plate 220 can be driven to move slowly to avoid the second microneedle electrode 221 moving rapidly in the human tissue and damaging the human tissue, while ensuring the diffusion of the radio frequency energy of the second microneedle electrode 221 inside the target tissue, so as to achieve the corresponding treatment effect.

[0088] In this embodiment, the movement of the second microneedle electrode 221 within the moving range can be from the human body surface side inward, or the second microneedle electrode 221 can move from the human body interior to the outside of the human body. The present application does not limit this.

[0089] In this embodiment, by controlling the second microneedle electrode 221 to move along the depth direction of the target tissue under the drive of the first linear driver 230, and the second microneedle electrode 221 continuously releases radio frequency energy during the movement, so as to effectively treat each part of the target tissue. Compared with the fixed needle tip distribution area when the depth is fixed, the needle tip distribution area of the second microneedle electrode 221 in this embodiment is movable, which can not only treat the deep target tissue, but also treat the shallow target tissue, with a wider treatment area, thereby improving the radio frequency treatment effect.

[0090] Further, as an option in this embodiment, the control method may further include after step S102:

[0091] Step S103, sending a second control signal to the power supply module, so that the power supply module supplies either the first electrode polarity or the second electrode polarity to at least one of the plurality of second microneedle electrodes during the process of the second needle plate moving at a preset speed within the moving range, and supplies the other of the first electrode polarity and the second electrode polarity to the remaining second microneedle electrodes among the plurality of second microneedle electrodes.

[0092] In this embodiment, during the movement of the second needle plate, the second needle plate can adopt a bipolar mode output, with a wider treatment area.

[0093] Step S104, obtaining the impedance value of the microneedle component and the preset impedance threshold;

[0094] Step S105: Update the preset spacing according to the impedance value and the preset impedance threshold.

[0095] Step S106: Send second control information to the first linear driver according to the preset spacing, so that the first linear driver drives the second needle plate to move until the spacing between the first needle plate and the second needle plate is equal to the preset spacing.

[0096] In this embodiment, during the treatment process, the impedance value of the tissue between the positive electrode and the negative electrode of the microneedle component can also be monitored in real time, and then the spacing between the first needle plate and the second needle plate, that is, the preset spacing, can be adjusted according to the feedback impedance value. Then, the actual distance can be adjusted according to the updated preset distance to make the treatment effect better.

[0097] Among them, the positive electrode can be the first microneedle electrode with a positive polarity on the first needle plate, or the second microneedle electrode with a positive polarity on the second needle plate. Similarly, the negative electrode can be the first microneedle electrode with a negative polarity on the first needle plate, or the second microneedle electrode with a negative polarity on the second needle plate.

[0098] Based on the first embodiment of the microneedle treatment control method of the present invention, a second embodiment of the microneedle treatment control method of the present invention is proposed. Refer to Figure 6 , Figure 6 which is the flowchart of the embodiment of the present invention.

[0099] In this embodiment, the following steps are included:

[0100] Step S201: Obtain the preset first penetration depth of the first microneedle electrode 211 and the preset second penetration depth of the second microneedle electrode 221.

[0101] The preset first penetration depth and the second preset penetration depth can be determined according to the part to be treated. For example, the penetration depth of the microneedle electrode can be obtained according to the preset penetration depth mapping table of the part to be treated and the microneedle electrode. For example, the depth mapping table provides corresponding penetration depths for parts such as the abdomen, legs, neck, or armpit. When in use, the user can obtain the corresponding penetration depth according to the part where the microneedle electrode needs to penetrate, and then set the penetration depth of the microneedle electrode.

[0102] Step S202: Determine the preset spacing between the first needle plate 210 and the second needle plate 220 according to the preset first penetration depth and the preset second penetration depth.

[0103] Step S203: Send second control information to the first linear driver 230 according to the preset spacing, so that the first linear driver 230 drives the second needle plate 220 to move until the spacing between the first needle plate 210 and the second needle plate 220 is equal to the preset spacing.

[0104] Among them, since the first needle plate 210 and the second needle plate 220 need to be inserted into the human body simultaneously, it is also necessary to determine the distance between the first needle plate 210 and the second needle plate 220, so that when the insertion depth of the first needle plate 210 meets the first insertion depth requirement, the second insertion depth also meets the requirement. Therefore, in the above steps, after determining the preset distance, it is also necessary to adjust the distance between the first needle plate 210 and the moving anvil through the first linear driver 230, so that the distance between the two meets the preset distance. At this time, the first micro-needle motor and the second micro-needle motor of the entire micro-needle component 200 can be synchronously inserted into the human body through the second linear driver.

[0105] Step S204: After the first micro-needle electrode 211 and the second micro-needle electrode 221 are inserted into the human body and start to output radio frequency energy, determine the moving range of the second micro-needle electrode 221 in the length direction according to the preset second insertion depth of the second micro-needle electrode 221.

[0106] Step S205: Send a first control signal to the linear driver to make the first linear driver 230 drive the second needle plate 220 to move in the moving range along the length direction at a preset speed.

[0107] Based on the second embodiment of the micro-needle treatment control method of the present invention, a third embodiment of the micro-needle treatment control method of the present invention is proposed.

[0108] In this embodiment, after step S203, the control method further includes:

[0109] Step S206: Send a third control signal to the second linear driver to make the second linear driver drive the micro-needle component to move along the length direction at a preset speed.

[0110] That is, in this embodiment, the first needle plate and the second needle plate move synchronously and slowly, so that the micro-needle component can concentrate on treating the target tissue in a certain part of the human body.

[0111] It is easy to understand that step S206 can be carried out after step S204 or after step S205.

[0112] The above are only optional embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structural transformation made under the inventive concept of the present invention by using the content of the specification and drawings of the present invention, or any direct / indirect application in other related technical fields is included in the patent protection scope of the present invention.

Claims

1. A radiofrequency microneedle therapeutic apparatus, characterized in that, The invention comprises a microneedle component, wherein the microneedle component comprises: a first needle plate, wherein the first needle plate is provided with a plurality of first microneedle electrodes and a plurality of through holes, wherein the length direction of the first microneedle electrodes is parallel to the axial direction of the through holes, and the plurality of first microneedle electrodes and the plurality of through holes are staggered; a second needle plate, the second needle plate being disposed on a side of the first needle plate away from the first microneedle electrode, the second needle plate being movable along the length direction of the first microneedle electrode; and the second needle plate being provided with a plurality of second microneedle electrodes, the second microneedle electrodes passing through the through-holes and protruding from the first needle plate; and a spacing adjustment device for adjusting the spacing between the first needle plate and the second needle plate, the spacing adjustment device comprising a first linear actuator, one end of the first linear actuator being connected to the first needle plate and the other end being connected to the second needle plate; A controller is configured to determine a preset spacing between the first needle plate and the second needle plate; based on the preset spacing, send second control information to the first linear actuator so that the first linear actuator drives the second needle plate to move until the spacing between the first needle plate and the second needle plate is equal to the preset spacing; wherein, when the spacing between the first needle plate and the second needle plate is equal to the preset spacing, after the first microneedle electrode and the second microneedle electrode are inserted into the human body, the insertion depths of the first microneedle electrode and the second microneedle electrode both meet the requirements.

2. The radiofrequency microneedle therapeutic apparatus according to claim 1, wherein The spacing adjustment device is arranged between the first needle plate and the second needle plate.

3. The radio frequency microneedle therapeutic apparatus according to claim 1, characterized in that The first microneedle electrodes and the through holes are arranged in an array.

4. The radio frequency microneedle therapeutic apparatus according to claim 3, wherein, The length of the first microneedle electrode is shorter than the length of the second microneedle electrode.

5. The radio frequency microneedle therapeutic apparatus according to claim 1, characterized in that The controller is configured to determine the movement range of the second microneedle electrode in the length direction according to a preset second insertion depth of the second microneedle electrode after the first microneedle electrode and the second microneedle electrode are inserted into the human body and start outputting radiofrequency energy; A first control signal is sent to the first linear driver, so that the first linear driver drives the second microneedle electrode to move along the length direction at a preset speed within the movement interval.

6. The radiofrequency microneedle therapeutic apparatus according to claim 1, wherein The controller is configured to obtain a preset first insertion depth of the first microneedle electrode and a preset second insertion depth of the second microneedle electrode; and determine a preset spacing between the first needle plate and the second needle plate based on the preset first insertion depth and the preset second insertion depth.

7. The radiofrequency microneedle therapeutic apparatus according to claim 6, wherein The controller is specifically configured to determine the minimum energy output depth of the second microneedle electrode according to the part to be treated; and determine the movement range of the second microneedle electrode in the length direction according to the preset second insertion depth of the second microneedle electrode and the minimum energy output depth.

8. The radio frequency microneedle therapeutic apparatus according to claim 5, wherein The radio frequency microneedle therapeutic apparatus further includes a power supply module. The controller is specifically configured to send a second control signal to the power supply module, so that during the process that the second needle plate moves within the moving range at a preset speed, the power supply module supplies any one of a first electrode polarity and a second electrode polarity to at least one second microneedle electrode among the plurality of second microneedle electrodes, and supplies the other of the first electrode polarity and the second electrode polarity to the remaining second microneedle electrodes among the plurality of second microneedle electrodes.

9. The radiofrequency microneedle therapeutic apparatus according to claim 5, wherein The controller is further configured to, after sending a first control signal to the first linear driver to make the first linear driver drive the second microneedle electrode to move along the length direction within the moving range at a preset speed, obtain the impedance value of the microneedle component and a preset impedance threshold; update the preset spacing according to the impedance value and the preset impedance threshold; According to the updated preset spacing, send a second control message to the first linear driver, so that the first linear driver drives the second needle plate to move to a spacing between the first needle plate and the second needle plate equal to the preset spacing.

10. The radio frequency microneedle therapeutic apparatus according to claim 5, wherein The radio frequency microneedle therapeutic apparatus further includes a second linear driver, and the microneedle component is connected to the mobile end of the second linear driver; The controller is further configured to, after the first microneedle electrode and the second microneedle electrode are inserted into the human body and start to output radio frequency energy, after determining the moving range of the second microneedle electrode in the length direction according to the preset second insertion depth of the second microneedle electrode, send a third control signal to the second linear driver, so that the second linear driver drives the microneedle component to move along the length direction at a preset speed.

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