CN112190833A - Radio frequency microneedle array control method and device and radio frequency microneedle therapeutic apparatus - Google Patents
Radio frequency microneedle array control method and device and radio frequency microneedle therapeutic apparatus Download PDFInfo
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- A61N1/00—Electrotherapy; Circuits therefor
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- A61N1/18—Applying electric currents by contact electrodes
- A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
- A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
- A61N1/36014—External stimulators, e.g. with patch electrodes
- A61N1/36017—External stimulators, e.g. with patch electrodes with leads or electrodes penetrating the skin
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- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/18—Applying electric currents by contact electrodes
- A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
- A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
- A61N1/36014—External stimulators, e.g. with patch electrodes
- A61N1/3603—Control systems
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/18—Applying electric currents by contact electrodes
- A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
- A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
- A61N1/36014—External stimulators, e.g. with patch electrodes
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Abstract
本发明公开一种射频微针阵列控制方法、装置及射频微针治疗仪，其中方法包括以下步骤：获取多个微针电极对应的坐标；从多个微针电极对应的坐标中确定至少一个目标坐标；向开关切换电路发送控制信号，以控制开关切换电路在第一预设时长内为目标坐标对应的目标微针电极供第一电极性与第二电极性中的任一者，以及为微针阵列中除目标微针电极外的至少部分微针电极供第一电极性与第二电极性中的另一者，其中第一电极性与第二电极性的极性相反；返回至从多个微针电极对应的坐标中确定至少一个目标坐标的步骤。采用本发明方法的射频治疗仪在射频微针治疗过程中具有多个变换的能量输出点，利于射频微针治疗仪的能量更加均匀的输出。
The invention discloses a radio frequency microneedle array control method, device and radio frequency microneedle therapeutic apparatus, wherein the method comprises the following steps: acquiring coordinates corresponding to a plurality of microneedle electrodes; determining at least one target from the coordinates corresponding to the plurality of microneedle electrodes coordinates; sending a control signal to the switch switching circuit to control the switch switching circuit to supply the target microneedle electrode corresponding to the target coordinate for any one of the first electrical polarity and the second electrical polarity, and for the microneedle electrode corresponding to the target coordinate within the first preset time period At least a portion of the microneedle electrodes in the needle array other than the target microneedle electrode are supplied with the other of the first electric polarity and the second electric polarity, wherein the polarity of the first electric polarity and the second electric polarity are opposite; The step of determining at least one target coordinate among the coordinates corresponding to each microneedle electrode. The radio frequency therapeutic apparatus using the method of the present invention has a plurality of transformed energy output points in the process of radio frequency microneedle therapy, which is beneficial to the more uniform energy output of the radio frequency microneedle therapeutic apparatus.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a radio frequency microneedle array control method and device and a radio frequency microneedle therapeutic apparatus.
Background
The radio frequency micro-needle therapy is a micro-invasive radio frequency dot matrix technology, which utilizes a tiny micro-needle to accurately apply Radio Frequency (RF) energy to target tissues with different depths, can be used for facial rejuvenation application such as skin tightening and scar removal, and can also be used for acne treatment and axillary hyperhidrosis treatment.
However, in the current micro-needle lattice radio frequency treatment process, there are many problems, for example, the micro-needle electrodes are all designed and fixed as a positive electrode and a negative electrode, that is, the same micro-needle electrode is always used as the positive electrode or the negative electrode in the application process, which causes uneven energy in the treatment process and easily affects the treatment effect and the experience effect.
Disclosure of Invention
The invention mainly aims to provide a radio frequency microneedle array control method and device and a radio frequency microneedle therapeutic apparatus, and aims to solve the technical problem of uneven energy output of a radio frequency microneedle array in the prior art.
In order to achieve the above object, the present invention provides a radio frequency microneedle array control method, which is applied to a radio frequency microneedle therapeutic apparatus, the radio frequency microneedle therapeutic apparatus comprising: a power supply;
the input end of the switch switching circuit is connected with a power supply; and
the micro-needle array comprises a plurality of micro-needle electrodes with switchable electric polarities, wherein each micro-needle electrode has a corresponding coordinate, and the micro-needle electrodes are electrically connected with the output end of the switch switching circuit;
the method comprises the following steps:
obtaining coordinates corresponding to a plurality of microneedle electrodes;
determining at least one target coordinate from the coordinates corresponding to the plurality of microneedle electrodes;
sending a control signal to a switch switching circuit to control the switch switching circuit to provide any one of the first electrical polarity and the second electrical polarity for a target microneedle electrode corresponding to a target coordinate and provide the other one of the first electrical polarity and the second electrical polarity for a microneedle electrode except the target microneedle electrode in a microneedle array within a first preset time period, wherein the polarities of the first electrical polarity and the second electrical polarity are opposite;
returning to the step of determining at least one target coordinate from the coordinates corresponding to the plurality of microneedle electrodes.
Optionally, after the step of determining at least one target coordinate from the coordinates corresponding to the plurality of microneedle electrodes, the method further comprises:
at least one target coordinate is recorded.
Optionally, before the step of determining at least one target coordinate from the coordinates corresponding to the plurality of microneedle electrodes, the method further includes:
acquiring all historical target coordinates recorded currently;
removing the currently recorded historical target coordinates from the coordinates corresponding to the plurality of microneedle electrodes to obtain remaining effective coordinates;
the step of determining at least one target coordinate from the coordinates corresponding to the plurality of microneedle electrodes comprises:
at least one target coordinate is determined from the remaining valid coordinates.
Optionally, after the step of removing the currently recorded historical target coordinates from the coordinates of the plurality of microneedle electrodes to obtain remaining effective coordinates, the method further comprises:
acquiring peripheral coordinates of all historical target coordinates;
removing peripheral coordinates from the remaining effective coordinates to obtain remaining optional coordinates;
the step of determining at least one target coordinate from the remaining valid coordinates comprises:
at least one target coordinate is determined from the remaining selectable coordinates.
Optionally, the peripheral coordinates of which the recording duration is greater than or equal to the second preset duration are removed from all the peripheral coordinates.
Optionally, the step of determining at least one target coordinate from the coordinates corresponding to the plurality of microneedle electrodes comprises:
and determining at least one target coordinate from the coordinates corresponding to the plurality of microneedle electrodes according to a preset target microneedle electrode sequence.
Optionally, the step of determining at least one target coordinate from the coordinates corresponding to the plurality of microneedle electrodes comprises:
a target coordinate is determined from the coordinates corresponding to the plurality of microneedle electrodes.
Optionally, the control signal further controls the switch switching circuit to interchange the electrical polarities of the targeted microneedle electrode and at least a portion of the microneedle electrodes except the targeted microneedle electrode at least once within a first preset time.
In a second aspect, the present invention further provides a radio frequency microneedle array control apparatus, including:
the coordinate acquisition module is used for acquiring coordinates corresponding to the microneedle electrodes;
a coordinate determination module for determining at least one target coordinate from the coordinates corresponding to the plurality of microneedle electrodes;
the signal sending module is used for sending a control signal to the switch switching circuit so as to control the switch switching circuit to provide any one of the first electrical polarity and the second electrical polarity for the target microneedle electrode corresponding to the target coordinate within a first preset time period and provide the other one of the first electrical polarity and the second electrical polarity for the microneedle electrode except the target microneedle electrode in the microneedle array, wherein the polarities of the first electrical polarity and the second electrical polarity are opposite.
In a third aspect, the present invention further provides a radio frequency microneedle therapeutic apparatus, comprising:
a power supply;
the input end of the switch switching circuit is connected with a power supply;
the micro-needle array comprises a plurality of micro-needle electrodes with switchable electric polarities, wherein each micro-needle electrode has a corresponding coordinate, and the micro-needle electrodes are electrically connected with the output end of the switch switching circuit; and
the radio frequency micro-needle array control program is stored on the memory and can run on the processor, and when being executed by the processor, the radio frequency micro-needle array control program realizes the steps of the radio frequency micro-needle array control method.
According to the technical scheme, in the treatment process, all the microneedle electrodes in the microneedle array are represented by coordinates, at least one target coordinate is determined from the coordinates of all the microneedle electrodes, the switch switching circuit is controlled to connect the microneedle electrodes corresponding to the target coordinates in the microneedle array with the power supply for a first preset time, all or part of the rest of the microneedle electrodes in the microneedle array are connected with the power supply, and the electrode polarity of the microneedle electrodes corresponding to the at least one target coordinate in the microneedle array is controlled to be opposite to that of the rest of the microneedle electrodes connected to the power supply. Therefore, at least one transformed energy output point is arranged in the radio frequency microneedle treatment process, more uniform energy output of the radio frequency microneedle treatment instrument is facilitated, the treatment effect is improved, the phenomenon that certain parts receive energy output for a long time and are overheated in the treatment process is avoided, and the treatment safety is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a radio frequency microneedle therapy apparatus in a hardware operating environment according to an embodiment of the present invention;
fig. 2 is a schematic flow chart illustrating a radio frequency microneedle array control method according to a first embodiment of the present invention;
fig. 3 is a schematic coordinate diagram of a microneedle array according to an embodiment of the radio frequency microneedle therapy apparatus of the present invention;
fig. 4 is a schematic flow chart illustrating a radio frequency microneedle array control method according to a second embodiment of the present invention;
fig. 5 is a schematic flow chart illustrating a radio frequency microneedle array control method according to a third embodiment of the present invention;
fig. 6 is a schematic diagram of a preset target microneedle electrode track according to an embodiment of the radio frequency microneedle array control method of the present invention;
fig. 7 is a block diagram illustrating a first embodiment of the rf microneedle array control apparatus according to the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a radio frequency therapeutic apparatus according to an embodiment of the present invention.
The radio frequency microneedle therapeutic apparatus includes a power supply 100, a microneedle array 200, a switch switching circuit 300, and a controller 400.
The output frequency of the power supply 100 may be 0.3MHz-100MHz, and the power supply 100 may be a continuous output power supply or a pulse output power supply or a continuous and pulse output power supply. The power supply 100 may include only one, that is, a single power supply 100 supplies power to all the microneedle arrays 200. Alternatively, the power supply 100 may include a plurality of power supplies 100, and the plurality of power supplies 100 are connected to the switch switching circuit 300, respectively. For example, each row of microneedle electrodes in microneedle array 200 is powered by a power supply 100. For a 7 × 7 microneedle array 200, power may be supplied by 7 power supplies 100.
The microneedle array 200 includes a PCB and a plurality of microneedle electrodes disposed on the PCB, and the microneedle electrodes are arranged in an array, for example, in a 7 × 7 array. The microneedle electrodes on the microneedle array 200 can be set as positive electrodes or negative electrodes as required, and the electric polarity of each microneedle electrode can be switched to alternately serve as the positive and negative electrodes in different operation periods. Specifically, the microneedle electrodes can be connected to different ports of the power supply according to the switching circuit.
The input end of the switch switching circuit 300 is connected to the power supply 100, and the output end of the switch switching circuit 300 is electrically connected to the microneedle array 200 through a PCB.
The controller 400 is connected to the switching circuit 300 to control the connection between each microneedle electrode in the microneedle array 200 and the power supply 100. The controller comprises at least one processor 401, a memory 402 and a radio frequency micro-needle array control program stored on the memory 402 and capable of running on the processor 401, wherein the radio frequency micro-needle array control program is configured to realize the steps of the radio frequency micro-needle array control method. In some embodiments, the processor 401, memory 402 are integrated on the same chip or circuit board; in some other embodiments, either or both of processor 401 and memory 402 may be implemented on separate chips or circuit boards. That is, the controller 400 may be a microprocessor such as a single chip, a DSP, an FPGA, or the like, and in some embodiments, may also be implemented by using a chip dedicated to the radio frequency microneedle therapy apparatus, which is not limited in this embodiment.
It will be appreciated by those skilled in the art that the arrangement shown in figure 1 does not constitute a limitation of the rf treatment apparatus and may include more or less components than those shown, or some components may be combined, or a different arrangement of components.
An embodiment of the present invention provides a radio frequency microneedle array control method, and referring to fig. 2, fig. 2 is a schematic flow chart of a first embodiment of the radio frequency microneedle array control method according to the present invention.
In this embodiment, the radio frequency microneedle array control method includes the following steps:
step S100, obtaining coordinates corresponding to the plurality of microneedle electrodes.
Specifically, in this step, the microneedle array pattern is distributed in an array, for example, a 7 × 7 array, on the PCB or the mounting substrate. And the relative position of each microneedle electrode in the microneedle array relative to other microneedle arrays in the microneedle array is unchanged on the installation plane of the microneedle array, so a plane coordinate system can be introduced to represent the position of each microneedle electrode in the microneedle array.
Referring to fig. 3, for a 7 × 7 microneedle array, the microneedles at the lower left corner in the microneedle array can be used as an origin, the rows of the microneedle array are horizontal axes in a planar coordinate system, the columns of the microneedle array are vertical axes in the planar coordinate system, and the spacing between adjacent microneedle electrodes is 1, so the microneedle electrodes in the microneedle array can be represented as: (0,0), (0,1), … …, (0,6), (1,0), (1,1) … … (6, 6).
Therefore, the coordinates corresponding to all the microneedle electrodes can be stored in the controller 400, and when the embodiment of the method is executed, the coordinates stored in the controller 400 are called, that is, the coordinates corresponding to a plurality of the microneedle electrodes are obtained.
In addition, the coordinates of all the microneedle electrodes may be acquired in this step, and the coordinates of a part of the microneedle electrodes may also be acquired. It is easy to understand that due to different treatment positions, there may be some microneedle electrodes that are not inserted into the tissue to be treated, i.e. only some microneedle electrodes in the rf therapy apparatus need to output rf energy. Only the coordinates of the microneedle electrode that is inserted into the tissue and needs to output the radio frequency energy need to be acquired in this step.
It should be noted that, for the part of the microneedle electrodes, whether the microneedle electrodes need to output radio frequency energy can be determined by detecting the impedance of each microneedle electrode.
Step S200, determining at least one target coordinate from the corresponding coordinates of the microneedle electrodes.
The target coordinates are coordinates of the microneedle electrodes which need to output radio frequency energy in the subsequent steps. This step is used to select part of the target coordinates from the plurality of microneedle electrodes, which may be random or regular. The present embodiment does not limit this. In addition, the number of target coordinates may be one or more, for example, 2. Optionally, the number of the target coordinates is one, that is, step S200 is: and determining a target coordinate from the corresponding coordinates of a plurality of microneedle electrodes.
For example, during a treatment session, all microneedle electrodes in a 7 x 7 microneedle array are inserted into the tissue and need to deliver rf energy. An operation of determining target coordinates is performed, one target coordinate is randomly determined from 49 coordinates of (0,0) - (7, 7): (3,4).
Step S300, sending a control signal to the switch switching circuit to control the switch switching circuit to provide any one of the first electrical polarity and the second electrical polarity for the target microneedle electrode corresponding to the target coordinate and to provide the other one of the first electrical polarity and the second electrical polarity for at least a part of the microneedle electrodes in the microneedle array except the target microneedle electrode within a first preset time period, wherein the polarities of the first electrical polarity and the second electrical polarity are opposite.
Specifically, the switch switching circuit connects the positive electrode and the negative electrode of the power supply to each microneedle electrode on the microneedle array based on a control signal of the controller, so that the microneedle electrodes work as the positive electrode or the negative electrode. In the step, the controller sends a control signal to the switch switching circuit, and the electric polarity of the target microneedle electrode corresponding to the target coordinate in the microneedle array is made to be the first electric polarity or the second electric polarity by controlling the switching of the switch switching circuit, and all or part of the microneedle electrodes except the target microneedle electrode are made to be the opposite second electric polarity or the first electric polarity. That is, when the microneedle electrode of interest has a positive polarity, the microneedle electrodes other than the microneedle electrode of interest have a negative polarity. When the microneedle electrode of interest has a negative polarity, the microneedle electrodes other than the microneedle electrode of interest have a positive polarity.
For example, the target microneedle electrode determined in the previous step in the microneedle electrode array is a positive electrode, the rest microneedle electrodes are negative electrodes, one target electrode is determined from the negative electrodes at this time, and the power supply end can be switched by the switching circuit. The power supply 10 has two ports a and B, the microneedle electrode is connected to the port a or the port B, and switching of the microneedle electrode from one of the port a and the port B to the other can complete switching of the electrical polarity. Therefore, the connection of the target microneedle electrode determined in the previous step can be switched from the port a to the port B, and then the connection of the target microneedle electrode determined this time is switched from the port B to the port a, and the rest of the microneedle electrodes are connected to the port B, that is, the switching of the electric polarity of the target microneedle electrode is completed, so that the polarity of the target microneedle electrode is opposite to that of the rest of the microneedle electrodes.
In order to prevent the output position of the radio frequency energy from being fixed, that is, to achieve the purpose of uniform output of the radio frequency energy, the microneedle electrode corresponding to the target coordinate in this step is continuously operated at the first electrical polarity for a first preset time period T1. For example, the first preset duration may be in milliseconds.
For example, for a 7 × 7 microneedle array, it is determined that the target coordinate is (3,4), a control signal is sent to the switching circuit, so that the electrical polarity of the microneedle electrode corresponding to (3,4) in the microneedle array is a positive electrode, and the electrical polarities of the remaining microneedle electrodes are negative electrodes in the first preset time period T1.
It should be noted that at least a part of the microneedle electrodes in the microneedle array except the targeted microneedle electrode is provided with the other one of the first electrical polarity and the second electrical polarity, that is, all the microneedle electrodes except the targeted microneedle electrode can be connected with the power supply, and also can be connected with any part of the microneedle electrodes therein, which is not limited in the present application.
For example, for a 7 × 7 microneedle array, the target coordinates are determined to be (3,6), and the peripheral coordinates are (2,6), (4,6), and (3, 5). A control signal is sent to the switch switching circuit, so that the electrical polarity of the microneedle electrode corresponding to (3,4) in the microneedle array is a positive electrode within a first preset time period T1, and the negative electrode is concentrated on the peripheral microneedle electrodes corresponding to (2,6), (4,6) and (3,5) according to the energy that always goes along the shortest path.
In step S400, the process returns to step S200. And (5) circularly executing the steps S200 to S300 until the shutdown signal is received, and finishing the treatment process of the radio frequency treatment instrument. Or the radio frequency therapy apparatus selects a traditional therapy mode.
It is easy to understand that the positive and negative electrodes of the microneedle electrodes in the conventional radio frequency therapy apparatus are fixed and are generally arranged at intervals, for example, for a 7 × 7 microneedle array, the electric polarities of the microneedle electrodes in the first row are always: positive and negative positive. In the treatment process, the energy output of the radio frequency therapeutic apparatus is uneven, so that local energy accumulation and overheating are easily caused, and the treatment effect is influenced.
In this embodiment, at least one target coordinate is selected from the coordinates of the plurality of microneedle electrodes, and the microneedle electrode corresponding to the target coordinate is switched to the opposite electrical polarity of the microneedle electrodes except for the target microneedle electrode in the microneedle array for a first preset time period T1 by turning on the switch switching circuit, and then the target microneedle electrode is determined in a loop. Each change in the targeted microneedle electrode results in a change in the thermal diffusion zone. Therefore, in the whole treatment process, the treatment area of the radio frequency micro-needle therapeutic apparatus changes along with the coordinate transformation of the target micro-needle electrode, so that the energy control of the radio frequency therapeutic apparatus is better, the radio frequency energy output is more uniform, the treatment effect is improved, and the phenomenon that the energy is accumulated in a part of tissues and is overheated is prevented.
In this embodiment, the control signal further controls the switching circuit to interchange the polarities of the targeted microneedle electrode and at least a portion of the microneedle electrodes except for the targeted microneedle electrode at least once within a first preset time. For example, in the first half of the first preset time period, one of the microneedle electrodes is connected to the a port of the power supply 100 as a positive electrode, and the other is connected to the B port of the power supply 100 as a negative electrode. In the second half of the first preset time, the target microneedle electrode connected to the a port is switched to be connected to the B port, that is, to become a negative electrode, and the rest of the target microneedle electrodes, which are originally connected to the B port of the power supply 100 as a negative electrode, are changed to be connected to the a port, and become a positive electrode. Namely, the microneedles connected with the two ends of the radio frequency power supply have different corresponding thermal dispersion areas, which are mainly caused by the characteristics of the power supply, so that the thermal dispersion areas are uneven, the treatment effect is influenced, and the influences can be eliminated by switching the power supply ends.
In this embodiment, in order to facilitate viewing of the selected record of the target coordinates and to facilitate later improvement or improvement of the control of the microneedle array, after step S200, the method further includes:
step S210, recording the at least one target coordinate.
This step is to store the target coordinates determined in step S200 as historical target coordinates in the controller, for example, a log file of the target coordinates may be formed. Or the target coordinates may be stored in a historical target coordinate library. For subsequent processing or viewing.
Further, based on the first embodiment of the radio frequency microneedle array control method of the present invention, a second embodiment of the radio frequency microneedle array control method of the present invention is provided. Referring to fig. 4, fig. 4 is a schematic flow chart of a radio frequency microneedle array control method according to a second embodiment of the present invention.
In the radio frequency treatment process, in order to avoid the determination step S200 of randomly determining the target coordinate for multiple times, if the target coordinate is repeatedly determined as the same coordinate for multiple times, a small probability event occurs that the electrical polarity of the microneedle electrode of the microneedle array is actually fixed.
In this embodiment, step S210 is included after step S200, and before step S200, the method further includes:
and S500, acquiring all historical target coordinates recorded currently.
Specifically, the method is used to obtain the stored target coordinates selected last time or several times, i.e. historical target coordinates.
S600, removing the currently recorded historical target coordinates from the coordinates of the microneedle electrodes to obtain the remaining effective coordinates.
In which the target coordinates that were selected in the last time or several times or during the treatment cycle are removed from the microneedle array to be selected, leaving the remaining valid coordinates. The remaining effective coordinates are the coordinates corresponding to the latest time or times or the coordinates which are not determined as the target microneedle electrodes in the treatment period. It is worth mentioning that the number of remaining valid coordinates may be 0 at minimum. When the remaining effective coordinates are 0, it indicates that all the microneedle electrodes in the microneedle array are not selectable, and the treatment process is ended or the next cycle may be started, i.e., the coordinates corresponding to all the microneedle electrodes of the microneedle array are reloaded.
Step S200 adaptively changes to: step S200' determines at least one target coordinate from the remaining valid coordinates.
Step S400 adaptively changes to: return to step S500.
That is, in this embodiment, the target coordinate is determined from the remaining effective coordinates that have not been determined as corresponding to the target microneedle electrode in the last time or several times or within the treatment period, so that the occurrence of a small probability time that a certain coordinate is repeatedly determined as the target coordinate can be avoided, thereby ensuring the uniform distribution of the target microneedle electrode of the radio frequency therapeutic apparatus over time, and thus improving the uniformity of the energy output of the radio frequency microneedle array, so as to improve the treatment effect.
For ease of understanding, the present embodiment is specifically illustrated by way of example.
For example, for a 7 × 7 microneedle array, the historical target coordinates stored in the controller are (0,0), (5, 2), and (3, 6). I.e. coordinates that have already been used. In the new target coordinate determination step, the stored historical target coordinates (0,0), (5, 2), and (3,6) are acquired, and then the 3 coordinates are deleted from the 49 corresponding coordinates of the microneedle array, and then a new target coordinate, such as (3,4), is determined from the remaining 46 coordinates. Until 49 coordinates are selected, and then the next cycle is started or the radio frequency treatment is ended.
Further, based on the first embodiment and the second embodiment of the radio frequency microneedle array control method of the present invention, the third embodiment of the radio frequency microneedle array control method of the present invention is provided. Referring to fig. 5, fig. 5 is a schematic flow chart of a radio frequency microneedle array control method according to a third embodiment of the present invention.
In the treatment process of the radio frequency therapeutic apparatus, the radio frequency energy output of each microneedle electrode has a heat dispersion region, so that after each microneedle electrode is determined as a target microneedle electrode, the temperature of the tissue near the target microneedle electrode in the human tissue is higher after the treatment time of the first preset time period T1 is over. If the neighboring microneedle electrode of the determined target microneedle electrode is selected in the next or several selection processes, namely, the heat diffusion areas of the consecutive first preset time period T1 have overlap, so that the tissue temperature of the overlapped area cannot be cooled down, and the temperature of the part of the tissue is continuously too high due to the energy accumulation, thereby affecting the treatment experience of the patient.
In this embodiment, after step S600, the method further includes:
step S700, peripheral coordinates of all the historical target coordinates are acquired.
After each recording of the historical target coordinates, the peripheral coordinates of the historical target coordinates, i.e. the coordinates located in its vicinity, can be determined. The proximity may be determined according to the particular treatment segment. For example, in one embodiment, the peripheral coordinates may be defined as microneedle electrodes spaced a distance from the target coordinates. If the recent history target coordinate is (3,3), the peripheral coordinates are (3,2), (3,4), (4,3) and (2, 3).
And step S800, removing the peripheral coordinates from the residual effective coordinates to obtain residual optional coordinates.
Specifically, the remaining selectable coordinates are coordinates obtained by removing peripheral coordinates of the target coordinates selected in the treatment cycle or the latest selection or several times after the target coordinates selected in the treatment cycle or the latest selection are removed from the microneedle array.
It is worth mentioning that the number of remaining optional coordinates may also be 0. When the remaining selectable coordinates are 0, it indicates that all the microneedle electrodes in the microneedle array are not selectable, and the treatment process is ended or the next cycle may be started, i.e., the coordinates corresponding to all the microneedle electrodes of the microneedle array are reloaded.
Step S200' is adaptively changed to: step S200 ", determining at least one target coordinate from the remaining optional coordinates.
Step S400 adaptively changes to: return to step S500.
In other words, in this embodiment, the target coordinate is determined from the plurality of remaining selectable coordinates that have not been determined as the target microneedle electrode in the last time or several times or in the treatment cycle and are not the peripheral coordinates thereof, which can avoid an event that the remaining coordinates are also selected as the target coordinate immediately after a certain coordinate in a certain region is selected, and prevent the occurrence of a situation that the temperature is too high due to the accumulation of the radio frequency energy in a certain tissue region treated by the radio frequency treatment apparatus, thereby ensuring the uniform distribution of the target microneedle electrode of the radio frequency treatment apparatus in time, and improving the uniformity of the energy output of the radio frequency microneedle array, so as to improve the treatment effect.
For ease of understanding, the present embodiment is specifically illustrated by way of example.
For example, for a 7 × 7 microneedle array, the historical target coordinates stored in the controller are (0,0), (5, 2), and (3, 6). (0,0), (5, 2) and (3,6) are the target coordinates that have been used in the treatment cycle. Before the determination step of the target coordinates at the new time, the stored history target coordinates (0,0), (5, 2), and (3,6), and the peripheral coordinates of the three history target coordinates are acquired: (0,1), (1,0), (4,2), (6,2), (5,1), (5,3), (2,6), (4,6) and (3, 5). The 3 historical target coordinates and 9 peripheral coordinates are then deleted from the 49 coordinates corresponding to the microneedle array, and a new target coordinate, e.g., (3,4), is then determined from the remaining 37 coordinates.
Further, in this embodiment, the microneedle electrode corresponding to the peripheral coordinate is not selected to prevent the temperature in the tissue of a certain region from being overheated because the microneedle electrode corresponding to the peripheral coordinate is not used as the target microneedle electrode to output the radio frequency energy. Therefore, the peripheral coordinates can be returned to the microneedle array after the temperature of the partial tissue area is reduced, so that the target microneedle electrode corresponding to the peripheral coordinates can also output radio frequency energy.
Therefore, in this embodiment, after step S700, the method further includes:
and removing the peripheral coordinates of which the recording time length is greater than or equal to a second preset time length from all the peripheral coordinates.
Specifically, the recording time length may be determined according to the recording time of the history target coordinate corresponding to the peripheral coordinate. The second preset time period may be a preset cooling time. The cooling time means that the temperature of the tissue near the microneedle electrode is increased due to the output of the radio frequency energy by the microneedle electrode, and a certain time is needed to cool the microneedle electrode to the temperature capable of receiving the radio frequency again after the radio frequency output is finished. This time is the cooling time. The micro needle electrodes corresponding to the coordinates are selected again in the cooling time to output radio frequency energy, so that the radio frequency energy of tissues corresponding to the micro needle electrodes is accumulated and the temperature is overheated, the user experience is influenced, and even accidents occur.
This step re-adds perimeter coordinates that exceed the cooling time to the remaining optional coordinates of the microneedle array. Therefore, all the microneedle electrodes in the microneedle array can be determined as target microneedle electrodes to output radio frequency energy, and the improvement of the uniformity of the energy output of the radio frequency microneedle array is facilitated, so that the treatment effect is improved. The target microneedle electrodes in the microneedle array are prevented from being arranged inefficiently.
For ease of understanding, the present embodiment is specifically illustrated by way of example.
For example, for a 7 × 7 microneedle array, the historical target coordinates stored in the controller are (0,0), (5, 2), and (3, 6). The (0,0), (5, 2) and (3,6) are the target coordinates of the last 3 selections. Before the determination step of the target coordinates at the new time, the stored history target coordinates (0,0), (5, 2), and (3,6), and the peripheral coordinates of the three history target coordinates are acquired: (0,1), (1,0), (4,2), (6,2), (5,1), (5,3), (2,6), (4,6) and (3, 5). The peripheral coordinates 2,6), (4,6), and (3,5) that have been cooled are deleted. The 3 historical target coordinates and 6 peripheral coordinates are then deleted from the 49 coordinates corresponding to the microneedle array, and a new target coordinate, e.g., (3,5), is then determined from the remaining 40 coordinates. (3,5) belong to the peripheral coordinates of the historical target coordinates (3,6), but have cooled down, and can be determined as target coordinates.
In this application, the determination of the at least one target coordinate in step S200 may be a random determination, or a determination according to a certain rule. For example, in some embodiments, step S200 adaptively changes to: determining at least one target coordinate from the coordinates corresponding to the microneedle electrodes according to a preset target microneedle electrode sequence.
The preset target electrode sequence is a series of coordinates which are stored in advance and arranged in sequence. In step S200, target coordinates may be sequentially selected along the preset target electrode sequence.
For ease of understanding, the present embodiment is specifically illustrated by way of example.
For example, referring to fig. 6, the curve of the predetermined target electrode sequence on the coordinate system of the microneedle array starts at the origin of the microneedle array, alternates between the first row and the second row to determine the target, and then jumps to the third row and the fifth row to alternate between the third row and the fifth row to determine the target. During the repeated execution of step S200, target coordinates are thus determined along the preset target sequence. For example, the first time the target coordinates may be determined as the origin (0,0), the second time (1,1), the third time (0,2), and so on until the preset target electrode sequence is completed, i.e., the next cycle may be started from the origin again. Additional preset target electrode sequences may also be performed.
Referring to fig. 7, fig. 7 is a block diagram illustrating a structure of a radio frequency micro-needle array control device according to a first embodiment of the present invention.
As shown in fig. 7, the radio frequency microneedle array control apparatus according to the embodiment of the present invention includes:
a coordinate obtaining module 10, configured to obtain coordinates corresponding to a plurality of microneedle electrodes;
a coordinate determination module 20 for determining at least one target coordinate from the coordinates corresponding to the plurality of microneedle electrodes;
the signal sending module 30 is configured to send a control signal to the switch switching circuit, so as to control the switch switching circuit to supply any one of the first electrical polarity and the second electrical polarity to the target microneedle electrode corresponding to the target coordinate within a first preset time period, and to supply the other one of the first electrical polarity and the second electrical polarity to the microneedle electrode in the microneedle array except the target microneedle electrode, where the first electrical polarity is opposite to the polarity of the second electrical polarity.
The radio frequency microneedle array control device provided by this embodiment selects at least one target coordinate from the coordinates of the plurality of microneedle electrodes, switches the microneedle electrode corresponding to the target coordinate to the electrode polarity of the microneedle electrode in the microneedle array except for the target microneedle electrode by turning on the switch switching circuit, and lasts for a first preset time period T1, and then cyclically determines the target microneedle electrode. Each change in the targeted microneedle electrode results in a change in the thermal diffusion zone. Therefore, in the whole treatment process, the treatment area of the radio frequency micro-needle therapeutic apparatus changes along with the coordinate transformation of the target micro-needle electrode, so that the energy control of the radio frequency therapeutic apparatus is better, the radio frequency energy output is more uniform, the treatment effect is improved, and the phenomenon that the energy is accumulated in a part of tissues and is overheated is prevented.
The above description is only an alternative embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A radio frequency micro-needle array control method is applied to a radio frequency micro-needle therapeutic apparatus, and the radio frequency micro-needle therapeutic apparatus comprises: a power supply;
the input end of the switch switching circuit is connected with a power supply; and
a microneedle array comprising a plurality of microneedle electrodes of switchable electrical polarity, wherein each microneedle electrode has a corresponding coordinate, and the microneedle electrodes are electrically connected with an output terminal of the switching circuit;
the method comprises the following steps:
obtaining coordinates corresponding to a plurality of microneedle electrodes;
determining at least one target coordinate from the coordinates corresponding to the plurality of microneedle electrodes;
sending a control signal to the switch switching circuit to control the switch switching circuit to provide any one of a first electrical polarity and a second electrical polarity for the target microneedle electrode corresponding to the target coordinate and to provide the other one of the first electrical polarity and the second electrical polarity for at least part of the microneedle electrodes in the microneedle array except the target microneedle electrode within a first preset time period, wherein the first electrical polarity is opposite to the second electrical polarity;
returning to the step of determining at least one target coordinate from the coordinates corresponding to the plurality of microneedle electrodes.
2. The radio frequency microneedle array control method of claim 1, wherein after the step of determining at least one target coordinate from the coordinates corresponding to the plurality of microneedle electrodes, the method further comprises:
recording the at least one target coordinate.
3. The radio frequency microneedle array control method of claim 2, wherein prior to the step of determining at least one target coordinate from the coordinates corresponding to the plurality of microneedle electrodes, the method further comprises:
acquiring all historical target coordinates recorded currently;
removing the currently recorded historical target coordinates from the coordinates corresponding to the plurality of microneedle electrodes to obtain remaining effective coordinates;
the step of determining at least one target coordinate from the coordinates corresponding to the plurality of microneedle electrodes comprises:
at least one target coordinate is determined from the remaining valid coordinates.
4. The radio frequency microneedle array control method of claim 3, wherein after the step of removing the current historical target coordinates from the coordinates of the plurality of microneedle electrodes to obtain remaining valid coordinates, the method further comprises:
acquiring peripheral coordinates of all historical target coordinates;
removing the peripheral coordinates from the residual effective coordinates to obtain residual optional coordinates;
the step of determining at least one target coordinate from the remaining valid coordinates comprises:
at least one target coordinate is determined from the remaining selectable coordinates.
5. The radio frequency microneedle array control method of claim 4, wherein after the step of obtaining peripheral coordinates of all historical target coordinates, the method further comprises:
and removing the peripheral coordinates of which the recording time length is greater than or equal to a second preset time length from all the peripheral coordinates.
6. The radio frequency microneedle array control method according to claim 1, wherein the step of determining at least one target coordinate from the coordinates corresponding to the plurality of microneedle electrodes comprises:
determining at least one target coordinate from the coordinates corresponding to the microneedle electrodes according to a preset target microneedle electrode sequence.
7. The radio frequency microneedle array control method according to any one of claims 1 to 6, wherein the step of determining at least one target coordinate from the coordinates corresponding to the plurality of microneedle electrodes comprises:
determining a target coordinate from the coordinates corresponding to the plurality of microneedle electrodes.
8. The radio frequency microneedle array control method according to claim 7, wherein the control signal further controls the switching circuit to interchange the electric polarity of the targeted microneedle electrode with the electric polarity of at least a portion of the microneedle electrodes except the targeted microneedle electrode at least once within a first preset time.
9. A radio frequency microneedle array control apparatus, comprising:
the coordinate acquisition module is used for acquiring coordinates corresponding to the microneedle electrodes;
a coordinate determination module for determining at least one target coordinate from the corresponding coordinates of the plurality of microneedle electrodes;
the signal sending module is used for sending a control signal to the switch switching circuit so as to control the switch switching circuit to supply any one of the first electrical polarity and the second electrical polarity to the target microneedle electrode corresponding to the target coordinate within a first preset time period, and supply the other one of the first electrical polarity and the second electrical polarity to at least part of the microneedle electrodes except the target microneedle electrode in the microneedle array, wherein the first electrical polarity is opposite to the polarity of the second electrical polarity.
10. A radio frequency micro-needle therapeutic apparatus, comprising:
a power supply;
the input end of the switch switching circuit is connected with a power supply;
a microneedle array comprising a plurality of microneedle electrodes of switchable electrical polarity, wherein each microneedle electrode has a corresponding coordinate, and the microneedle electrodes are electrically connected with an output terminal of the switching circuit; and
at least one processor, a memory, and a radio frequency microneedle array control program stored on the memory and executable on the processor, the radio frequency microneedle array control program when executed by the processor implementing the steps of the radio frequency microneedle array control method of any one of claims 1-8.
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