CN212490128U - Radio frequency micro-needle array control device and radio frequency micro-needle therapeutic apparatus - Google Patents
Radio frequency micro-needle array control device and radio frequency micro-needle therapeutic apparatus Download PDFInfo
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- CN212490128U CN212490128U CN202020965677.XU CN202020965677U CN212490128U CN 212490128 U CN212490128 U CN 212490128U CN 202020965677 U CN202020965677 U CN 202020965677U CN 212490128 U CN212490128 U CN 212490128U
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Abstract
The utility model discloses a radio frequency micropin array controlling means and radio frequency micropin therapeutic instrument, the device includes: a microneedle array; the input end of the switch switching circuit is connected with a power supply, two first output ends of the switch switching circuit are electrically connected with the microneedle array through a PCB, and a second output end of the switch switching circuit is electrically connected with the return electrode; the main controller controls the switch switching circuit to be communicated with the power supply, the microneedle array and the return electrode in a single-pole mode; wherein the electric polarities of a plurality of microneedle electrodes in the microneedle array are the same; under the bipolar mode, the main controller controls the switch switching circuit to be communicated with the power supply and the microneedle array; wherein the electric polarity of at least one microneedle electrode in the microneedle array is opposite to that of the rest microneedle electrodes. The utility model discloses can realize that micropin list bipolar electrode switches for the region of action of micropin all has better treatment at the width of horizontal direction and at the degree of depth of perpendicular skin direction.
Description
Technical Field
The utility model relates to the technical field of medical equipment, in particular to radio frequency micro-needle array control device and radio frequency micro-needle therapeutic instrument.
Background
Radio Frequency (Radio Frequency, short for RF) energy is accurately acted on target tissues with different depths by using the tiny micro-needles, so that the problems of uncertain depth, poor control of skin injury, serious energy transmission attenuation and the like of the traditional laser and Radio Frequency treatment are fundamentally solved, the side effects of color deposition and the like are avoided, and the micro-needle Radio Frequency micro-needle 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, there are still many problems in the current micro-needle lattice radio frequency treatment process, 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 a positive electrode or a negative electrode in the application process, which easily causes damage or even death of partial cells, thereby causing additional damage to the tissue subjected to electroporation, reducing the electroporation efficiency, and affecting the treatment effect and the experience effect.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a radio frequency micropin array controlling means and radio frequency micropin therapeutic instrument aims at realizing that micropin list bipolar electrode switches for the depth of the active region of micropin at the width of horizontal direction and at perpendicular skin direction all has better treatment.
In order to achieve the above object, the present invention provides a radio frequency micro-needle array control device, which is characterized in that the radio frequency micro-needle array control device comprises:
a power supply;
a return electrode;
the micro-needle array comprises a PCB and a plurality of micro-needle electrodes arranged on the PCB;
the input end of the switch switching circuit is connected with the power supply, two first output ends of the switch switching circuit are electrically connected with the microneedle array through a PCB, and a second output end of the switch switching circuit is electrically connected with the return electrode;
a main controller having a unipolar mode and a bipolar mode, the main controller controlling the switch switching circuit to communicate the power supply, the microneedle array, and a return electrode in the unipolar mode; wherein the electric polarities of the microneedle electrodes in the microneedle array are the same;
in a bipolar mode, the main controller controls the switch switching circuit to communicate the power supply and the microneedle array; wherein at least one of the microneedle electrodes in the microneedle array has an electrical polarity opposite to that of the rest of the microneedle electrodes.
Optionally, the main controller is configured to control the switching circuit to operate to control the microneedle array to switch between the monopolar mode and the bipolar mode.
Optionally, the main controller controls the microneedle array to switch between the monopolar mode and the bipolar mode at least once when controlling the switching circuit to operate.
Optionally, the main controller is configured to control the switching circuit to operate to control the microneedle array to switch between the monopolar mode and the bipolar mode at a preset cycle.
Optionally, in a bipolar mode, the main controller controls the switch switching circuit to switch the electrodes of the microneedle array.
Optionally, the main controller switches the electrodes of the microneedle array at least once when controlling the switching circuit to operate.
Optionally, the power supply includes a radio frequency power supply or a plurality of mutually independent radio frequency power supplies, and the radio frequency power supply is connected to the switch switching circuit.
The utility model also provides a radio frequency micro-needle therapeutic instrument, include as above radio frequency micro-needle array controlling means.
Optionally, the radio frequency microneedle therapy apparatus further comprises:
the device comprises a shell, a first fixing piece and a second fixing piece, wherein one end of the shell is provided with a through hole;
a drive mechanism mounted to the housing;
the cold guide assembly is arranged in the shell and is connected with the driving mechanism; and the number of the first and second groups,
wherein, the micro-needle array in the radio frequency micro-needle array control device is connected to the cold guide component faces one side of the through opening, the cold guide component is used for refrigerating and cooling the micro-needle array, and the driving mechanism is used for driving the cold guide component to move so as to drive the micro-needle array to extend out of the shell or move back into the shell through the through opening.
Optionally, the radio frequency microneedle therapeutic apparatus further comprises an insulating layer, and the insulating layer is arranged between the cold conducting component and the microneedle array.
The radio frequency micro-needle array control device of the utility model is provided with a power supply, a return electrode and a micro-needle array; in a unipolar mode, the switch switching circuit is controlled by the main controller to be communicated with the power supply, the microneedle array and the return electrode; wherein the electric polarities of the microneedle electrodes in the microneedle array are the same; under a bipolar mode, the switch switching circuit is controlled by the main controller to be communicated with the power supply and the microneedle array; wherein at least one of the microneedle electrodes in the microneedle array has an electrical polarity opposite to that of the rest of the microneedle electrodes. The utility model discloses radio frequency micropin array control device can realize that micropin list bipolar electrode switches for the region of action of micropin all has better treatment at the width of horizontal direction and at the degree of depth of perpendicular skin direction.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be 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 circuit diagram of an embodiment of the radio frequency microneedle array control apparatus of the present invention;
FIG. 2 is a schematic diagram of an electrode arrangement of one embodiment of the microneedle array of FIG. 1;
fig. 3 is a schematic structural view of an embodiment of the radio frequency microneedle therapeutic apparatus of the present invention.
| Reference numerals | Name (R) | Reference numerals | Name (R) |
| 10 | |
40 | |
| 20 | |
50 | |
| 30 | |
100 | |
| 200 | |
110 | Through |
| 211 | Encoder for encoding a |
210 | |
| 230 | |
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| 300 | Cold-conducting |
231 | |
| 320 | Refrigerating |
310 | |
| 322 | |
321 | |
| 410 | |
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| 430 | |
420 | |
| 431 | Temperature sensor |
The reference numbers illustrate:
the objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description relating to "first", "second", etc. in the embodiments 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 technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
The utility model provides a radio frequency micro-needle array control device.
Referring to fig. 1, in an embodiment of the present invention, the radio frequency micro-needle array 30 control device includes:
a power supply 10;
a return electrode 20;
a microneedle array 30 including a PCB (not shown) and a plurality of microneedle electrodes 420 disposed on the PCB;
the input end of the switch switching circuit 40 is connected with the power supply 10, two first output ends of the switch switching circuit 40 are electrically connected with the microneedle array 30 through a PCB, and a second output end of the switch switching circuit 40 is electrically connected with the return electrode 20;
a main controller 50, the main controller 50 having a unipolar mode and a bipolar mode, in the unipolar mode, the main controller 50 controlling the switching circuit 40 to communicate the power supply 10, the microneedle array 30, and the return electrode 20; wherein the microneedle electrodes 420 in the microneedle array 30 have the same electrical polarity;
in the bipolar mode, the main controller 50 controls the switch switching circuit 40 to connect the power supply 10 and the microneedle array 30; wherein at least one of the microneedle electrodes 420 in the microneedle array 30 has an electrical polarity opposite to that of the remaining microneedle electrodes 420.
In this embodiment, the material of the microneedle electrode 420 may be any conductive metal or other conductive materials, such as stainless steel, gold, silver, platinum-iridium alloy, tungsten, etc., and the surface material of the microneedle electrode 420 is a material with good biocompatibility, such as 304 stainless steel, 316 stainless steel, gold, platinum-iridium alloy, etc. At least one microneedle of the whole microneedle array 30 has a polarity opposite to that of other microneedles, that is, the microneedle array 30 has both a positive electrode and a negative electrode. The microneedle electrodes 420 on the microneedle array 30 can be set as positive electrodes or negative electrodes as required, and the electrodes of each microneedle can be switched, and alternately serve as positive electrodes and negative electrodes in turn in different operation time periods, and the positions of the microneedle electrodes 420 at the positive electrodes and the negative electrodes are alternately changed and unfixed, so that the situation that the same microneedle electrode 420 serves as the positive electrode or the negative electrode all the time in the application process is avoided, and the microneedle array can be specifically realized by applying voltages with different polarities to the microneedles. The polarity of the electrode of each microneedle may be the same as or different from that of the adjacent microneedle, for example, the electrodes of the microneedle array 30 may be arranged in rows (columns) and staggered in positive and negative directions, that is, the electrode of one row (column) of microneedles is set as the positive electrode, and the electrode 420 of the adjacent row (column) of microneedles is the negative electrode. Alternatively, as shown in fig. 2, the electrodes of each microneedle are opposite to those of its neighboring microneedles, that is, the microneedle electrodes 420 in each row and each column are arranged in a positive-negative staggered manner. The PCB may be used to mount the microneedle array 30, and may be a PCB or a mounting substrate for the microneedle array 30. In an embodiment, the control device of the radio frequency microneedle array 30 further includes a driving structure provided with a motor, the driving structure can drive the PCB to move, so as to drive the microneedle array 30 to move, the microneedle array 30 can be inserted into the skin, and the microneedle tip of the microneedle starts to release radio frequency energy after reaching a specified depth, so as to perform radio frequency therapy.
The output frequency of the power supply 10 can be 0.3MHz-100MHz, and the power supply 10 can be a continuous output power supply or a pulse output power supply or a continuous and pulse output power supply. The power supply 10 may be an external power supply or a rechargeable lithium battery, a power management chip and a rechargeable battery may be disposed in the power supply 10, and the output voltage of the power supply 10 is controllable, for example, the main controller 50 may output different control signals to the power supply 10, so that the power supply 10 outputs a pulse voltage. The power of the microneedle array 30 can be adjusted according to different pulse voltages. The power supply 10 may be logically connected to the main controller 50 through a power management chip, so as to implement functions of managing charging, discharging, power consumption management, etc. through the power management chip, and also implement switching and selection of a discharging mode, and constant power discharging or pulse discharging.
Further, the power supply includes a radio frequency power supply or a plurality of mutually independent radio frequency power supplies, and the radio frequency power supply is connected with the switch switching circuit 40. The number of the power supply sources 10 may be one, or may be multiple, and when the number is multiple, the multiple radio frequency power sources are respectively connected to the switch switching circuit;
generally, the microneedle therapy realizes constant power output through impedance detection feedback, and the present embodiment is further provided with an impedance detection circuit, the impedance detection circuit is connected to each microneedle electrode in the microneedle array, an output end of the impedance detection circuit is connected to the main controller, and the main controller 50 is further configured to control the power supply unit to provide corresponding power supply voltage for the corresponding microneedle electrode according to impedance of the positive electrode and the negative electrode of each microneedle electrode detected by the impedance detection circuit.
The impedance detection circuit is used for detecting the impedance between the positive and negative microneedle electrodes 420, and the output end of the impedance sensor is electrically connected with the main controller 50. The main controller 50 may also control the operation of the independent RF power source or each power supply unit according to the impedance sensor feedback data to adjust the RF output power of the microneedle electrode 420.
In the monopolar mode, in the embodiment where the power supply 10 is provided with a single power supply, the main controller 50 can control the independent RF power supply according to the feedback data of the impedance sensor, so as to adjust the RF output power of the whole microneedle electrode 420 of the microneedle array, thereby ensuring the treatment effect.
In an embodiment where the power supply 10 is configured as a plurality of independent rf power supplies, an independent rf power supply may be configured for each microneedle electrode 420 (in a bipolar mode, each microneedle electrode pair) to supply power, and each microneedle electrode is provided with an impedance sensor to detect the impedance of each microneedle electrode 420 and adjust the output power according to the impedance, so as to ensure that the output power of each microneedle electrode is the same, and a grouped power supply manner is adopted, that is, each group of microneedle electrodes 420 is powered by one independent rf power supply. The main controller 50 controls the corresponding power supply unit to adjust the output (adjust the frequency or pulse width or voltage amplitude) according to the feedback of the detected impedance. The present embodiment employs multiple independent power sources for precise control to ensure uniform energy across the treatment area.
In the bipolar mode, the impedance between each set of positive and negative microneedle electrodes 420 of the microneedle array 30 can be detected, and the output power can be adjusted according to the impedance between each set of positive and negative microneedle electrodes 420. Specifically, the microneedle array 30 may be provided with a plurality of electrode pairs, and the voltage of each electrode pair is adjustable, and correspondingly, the number of the power supplies 10 may be provided with a plurality of power supplies 10, and each electrode pair is provided with one power supply 10; alternatively, the power supply 10 is provided with a plurality of output terminals and a plurality of control switches (not shown), and each of the output terminals and the control switches is connected to one of the electrode pairs; and when each control switch is closed, the corresponding electrode pair is supplied with power. The power supply 10 of the present embodiment may be provided with a plurality of independent power supply units, and one power supply unit supplies power to one electrode pair. Of course, in other embodiments, the microneedles may be provided as a plurality of electrode groups, each of which includes the same number of positive and negative microneedle electrodes 420 and the microneedles are supplied in groups by the power supply 10, and each of the microneedles is alternately arranged, the plurality of microneedle electrodes 420 may be arranged at an appropriate density on a limited target plane, and a spacing distance between adjacent microneedle electrodes 420 is ensured to prevent a proximity effect. A plurality of independent radio frequency power supplies can be adopted in a bipolar mode, so that the temperature of the thermal dispersion area of each group of microneedles can be accurately controlled, and a better treatment effect is realized.
The main controller 50 may be a microprocessor such as a single chip, a DSP, an FPGA, or the like, and certainly, in some embodiments, may also be implemented by using a chip dedicated to radio frequency microneedle therapy, which is not limited herein. Those skilled in the art can integrate hardware circuits and software programs or algorithms in the main controller 50, connect various parts of the entire control device of the rf microneedle array 30 by using various interfaces and lines, execute various functions of the rf microneedle device and process data by operating or executing software programs and/or modules in the main controller 50 and calling data in the main controller 50, thereby performing overall monitoring of the rf microneedle device. The main controller 50 stores a plurality of operating modes, which can be selected and switched according to the requirements of the user. The operating modes include a monopolar mode and a bipolar mode. In the bipolar mode, the polarity switching period and duration of each electrode can be included. The user can also select a self-defined mode or a preset mode, the preset mode can set different working frequencies, voltage pulses, electrode electrifying working time and the like of the micro-needle according to statistics, investigation or experience values and the like, and then different options are formed for the user to select. The user-defined setting is that the user sets the working time of the micro-needle and the working voltage of the micro-needle according to the self requirement.
The main controller 50 may specifically be configured to control the switching circuit 40 to operate to control the microneedle array 30 to switch between the monopolar mode and the bipolar mode. And controls the microneedle array 30 to switch between the monopolar mode and the bipolar mode at least once during a treatment session. Alternatively, the main controller 50 may further control the switching circuit 40 to operate to control the microneedle array 30 to switch between the monopolar mode and the bipolar mode at a preset period. In one embodiment, a treatment duration T may range from 10ms to 12s during a treatment session, and the duration T1 in each of the two operating modes may range from 5ms to 5s in both the monopolar mode and the bipolar mode.
The radio frequency micro-needle array 30 control device of the utility model is provided with a power supply 10, a return electrode 20 and a micro-needle array 30; in a monopolar mode, the switching circuit 40 is controlled by the main controller 50 to communicate the power supply 10, the microneedle array 30 and the return electrode 20; wherein the microneedle electrodes 420 in the microneedle array 30 have the same electrical polarity; in the bipolar mode, the main controller 50 controls the switch switching circuit 40 to connect the power supply 10 and the microneedle array 30; wherein at least one of the microneedle electrodes 420 in the microneedle array 30 has an electrical polarity opposite to that of the remaining microneedle electrodes 420. The utility model discloses radio frequency micropin array 30 controlling means can realize that micropin list bipolar electrode switches for the region of action of micropin all has better treatment at the width of horizontal direction and at the degree of depth of perpendicular skin direction.
Referring to fig. 1, in an embodiment, the main controller 50 switches the electrodes of the microneedle electrodes 420 of the microneedle array 30 at least once when controlling the switching circuit 40 to operate.
The switching circuit 40 is controlled by the main controller 50 to connect the positive and negative power supplies of the power supply 10 to the microneedle electrodes 420, so that the microneedle electrodes 420 operate as positive electrodes or negative electrodes. In the unipolar mode, the polarity of each electrode in the microneedle array 30 is the same, for example, all electrodes are positive, in this case, the power supply 10 is controlled by the switching circuit 40, each electrode of the microneedle array 30 provides a positive power supply, and the negative electrode of the power supply 10 is connected to the return electrode 20 under the control of the switching circuit 40. When the radio frequency micro-needle array 30 controls the device, the return electrode 20 is attached to the surface of the human body when working, and forms a conducting loop with the power supply 10, the micro-needle electrode 420 of the micro-needle array 30, the switch switching circuit 40 and the human body (the return electrode 20 is generally attached to the nape when treating the face, and is generally attached to the back when treating the abdomen).
In the bipolar mode, the switch switching circuit 40 introduces the power supply 10 to the microneedle array 30, and under the control of the switch switching circuit 40, the positive electrode and the negative electrode of the power supply 10 are respectively connected to the microneedle electrodes 420, at least one negative microneedle electrode 420 is provided in the microneedle array 30, and all or part of the remaining microneedle electrodes 420 may be set as the positive microneedle electrodes 420. Alternatively, at least one positive microneedle electrode 420 may be provided, and all or part of the remaining microneedle electrodes 420 may be provided as the negative microneedle electrodes 420. The main controller 50 controls the switching circuit 40 to switch the electrodes of the microneedle electrodes 420 of the microneedle array 30, that is, the polarity of each microneedle electrode 420 can be switched. For example, after the microneedle array 30 continues to operate for a period of time T', all the microneedles of the microneedle array 30 are switched to the power source terminal by the switch control (two ports a and B of the power source 10, the microneedles connected to the port a are switched to be connected to the port B, and the microneedles connected to the port B are switched to be connected to the port a at the same time), and the power source terminal is switched at least once in the bipolar mode each time. The micro-needles connected with the two ends of the radio frequency power supply in the bipolar mode 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.
The switch switching circuit 40 may further control the microneedle array 30 to switch between the monopolar mode and the bipolar mode, specifically, when performing the treatment, the initial operation mode may be the monopolar mode or the bipolar mode, and after a period of time T1, the operation mode is switched, i.e., the operation mode is switched from the monopolar mode to the bipolar mode, or the operation mode is switched from the bipolar mode to the monopolar mode at least once during the whole treatment period. The active areas (thermal dispersion areas) in the two modes are different, the active area depth in the unipolar mode is deeper than that in the bipolar mode, and the active area in the bipolar mode is mainly between two needles with opposite polarities and is wider in the horizontal direction. In order to enlarge the action area and improve the treatment effect, the present embodiment adopts a single-pole and double-pole switching mode, so that the action area can achieve the expected effect in the width of the horizontal direction and the depth of the vertical skin direction.
In the above embodiment, the main controller 50 may further perform energy output control, which may be specifically implemented by obtaining an impedance value of a tissue between the positive and negative electrodes of the microneedle and a preset impedance threshold;
in this embodiment, an impedance sensor may be disposed on the microneedle electrodes to detect the impedance between the positive and negative microneedle electrodes, for example, in a bipolar mode, one impedance sensor may be disposed per microneedle electrode pair to detect the impedance between the respective microneedle electrodes. Wherein the preset impedance threshold may be obtained by:
after the microneedle electrode is pricked into the skin and reaches a preset depth, acquiring the current impedance value of the tissue between the positive electrode and the negative electrode of the microneedle;
and calculating to obtain the preset impedance threshold according to the obtained current impedance value of the tissue between the positive electrode and the negative electrode of the microneedle.
According to different working modes of the radio frequency microneedle array control device, the initial impedance values of microneedles during insertion are different, the microneedle electrodes are controlled to be inserted into the skin in the initial stage of microneedle treatment, and after the microneedle electrodes reach a preset depth, the initial impedance values of a monopolar mode and a bipolar mode can be respectively obtained through the impedance sensor and mode switching. For example, in the unipolar mode, the initial impedance value is Z1, and in the bipolar mode, the initial impedance value is Z2. Setting a preset impedance threshold value according to the obtained initial impedance value: in the unipolar mode, the impedance threshold k1 × Z1+ a and the bipolar mode impedance threshold k2 × Z2+ B, where k1, k2, a and B may be constants preset according to experimental data.
And controlling the radio frequency energy output of the power supply according to the acquired impedance value of the tissue between the positive electrode and the negative electrode of the microneedle and a preset impedance threshold. Specifically, the method comprises the following steps:
and when the acquired impedance value of the tissue between the positive electrode and the negative electrode of the microneedle is continuously increased and is greater than the preset impedance threshold value, controlling the power supply to reduce the radio frequency energy output.
In this embodiment, when the radio frequency microneedle array control device is powered on and works, after the microneedle electrode penetrates into the skin and reaches a preset depth and an initial impedance value of the microneedle when penetrating is obtained, a power output parameter can be determined according to the obtained initial impedance value, and the RF energy starts to be output, wherein a corresponding relationship between the power output and the impedance value is preset in the system. In the treatment process of the radio frequency micro-needle array control device, the tissue impedance of the treatment region is linearly changed along with the rise of the temperature, the tissue impedance is gradually reduced and then gradually increased, the impedance is rapidly increased after the certain temperature is reached, at this time, the main controller 50 can obtain the impedance value of the tissue between the positive electrode and the negative electrode of the micro-needle in the treatment process through the impedance sensor, when the impedance is detected to be gradually increased and reach a preset impedance threshold, the RF energy output is reduced, otherwise, the current RF energy output is maintained. Thus, the main controller 50 can control the independent radio frequency power supply according to the feedback data of the impedance sensor to adjust the RF output power of the whole microneedle electrode of the microneedle array, thereby ensuring the safety and the treatment effect.
The utility model also provides a radio frequency micro-needle therapeutic instrument, include as above radio frequency micro-needle array controlling means. The detailed structure of the radio frequency microneedle array control device can refer to the above embodiments, and is not described herein again; it can be understood, because the utility model discloses used above-mentioned radio frequency micropin array controlling means in the radio frequency micropin therapeutic instrument, consequently, the utility model discloses radio frequency micropin therapeutic instrument's embodiment includes all technical scheme of the whole embodiments of above-mentioned radio frequency micropin array controlling means, and the technological effect that reaches is also identical, no longer gives details here.
Wherein, this radio frequency micropin therapeutic instrument includes:
a shell 100, wherein one end of the shell 100 is provided with a through opening 110;
a drive mechanism 200 attached to the housing 100;
a cold conducting assembly 300 installed in the housing 100, wherein the cold conducting assembly 300 is connected to the driving mechanism 200; and the number of the first and second groups,
the micro-needle assembly 400 is connected to one side of the cold guide assembly 300 facing the through opening 110, the cold guide assembly 300 is used for refrigerating and cooling the micro-needle assembly 400, and the driving mechanism 200 is used for driving the cold guide assembly 300 to move so as to drive the micro-needle assembly 400 to extend out of the housing 100 through the through opening 110 or move back into the housing 100.
Specifically, the microneedle assembly 400 includes a PCB and a microneedle array, the microneedle array is provided with a plurality of microneedles, each microneedle electrode 420 is electrically connected to the PCB 410, or the microneedle array may be welded to the PCB, and each microneedle electrode 420 may be configured to generate a radio frequency current (a high frequency alternating current variable electromagnetic wave) so that the RF energy acts on the human tissue. In the related art, as the radio-frequency current can continuously pass through the micro-needle in the treatment process, the micro-needle generates heat and heats up, and the heated micro-needle can cause the human tissue to be adhered to the human tissue, so that the human tissue is unnecessarily damaged and the subsequent treatment effect is influenced.
The driving mechanism 200 drives the connecting cooling guide assembly 300 to move the cooling guide assembly 300, so as to drive the microneedle assembly 400 to extend out of the housing 100 or move back into the housing 100 through the through opening 110 of the housing 100. When the microneedle assembly 400 is extended out of the housing 100, the microneedle array can be inserted into the skin and release RF energy for RF therapy after reaching a specified depth. Simultaneously, at the radio frequency treatment in-process, lead cold subassembly 300 and can refrigerate to cool down rather than the micropin subassembly 400 of being connected, thereby can effectively avoid leading to taking place the condition of adhesion between human tissue and the micropin electrode 420 because micropin electrode 420 heaies up, avoid causing unnecessary damage to human tissue, and then reduce patient's pain and feel, promote treatment and security.
Further, as shown in fig. 3, the cold conducting assembly 300 includes a heat dissipation device 310 and a cooling device 320, the driving mechanism 200 is drivingly connected to the heat dissipation device 310, the cooling device 320 is connected to the heat dissipation device 310, and the microneedle assembly 400 is connected to the cooling device 320. It can be appreciated that the cooling device 320 is used to cool and exchange heat with the microneedle assembly 400, thereby cooling the microneedle assembly 400. In addition, according to the law of conservation of energy, the refrigeration device 320 generates cold and also emits heat, and therefore, the present embodiment provides the heat dissipation device 310 in the casing 100 to dissipate heat of the refrigeration device 320. Of course, in other embodiments, the heat sink 310 may not be disposed in the casing 100, and the cooling device 320 naturally dissipates heat by contacting with air.
In this embodiment, the heat dissipation device 310 includes a heat-conducting casing and a cooling liquid, the heat-conducting casing is enclosed to form a liquid storage chamber, and the cooling liquid is contained in the liquid storage chamber. Alternatively, the heat-conducting shell may be made of a metal material with good heat conductivity, such as compressed aluminum, and the cooling liquid may be saline or other liquid. It is understood that the heat sink 310 is essentially an energy storage device for temporarily storing heat conducted from the refrigeration device 320, and the heat in the energy storage device is slowly dissipated into the air. In other embodiments, the heat dissipation device 310 may also be a fan and/or a heat sink to dissipate heat, but this way of dissipating heat generates loud noise.
In this embodiment, as shown in fig. 3, the refrigerating device 320 is a semiconductor refrigerator, the semiconductor refrigerator includes a hot end 321 and a cold end 322 that are stacked, the hot end 321 is connected to the heat dissipation device 310, and the microneedle assembly 400 is connected to the cold end 322. The semiconductor refrigerator is a device for producing cold by using the thermo-electric effect of a semiconductor. Specifically, two different metals are connected by a conductor, and when direct current is switched on, the temperature of one joint is reduced, and the joint is a cold end 322; the other junction is at an elevated temperature, referred to as hot end 321. In the technical scheme of the embodiment, the microneedle assembly 400 is connected to the cold end 322 of the semiconductor cooler, so that the heat of the microneedle electrode 420 in the microneedle assembly 400 can be conducted to the cold end 322, and the temperature of the microneedle electrode 420 is reduced. Of course, in other embodiments, other refrigeration devices 320 may be employed, such as heat exchangers and the like. However, the semiconductor refrigerator serving as the refrigerating device 320 has the advantages of simple structure, small size, quick refrigeration and the like, and is beneficial to reducing the overall size of the radio frequency microneedle therapeutic apparatus.
As known from the foregoing description, the microneedle assembly 400 comprises a PCB board 410 and a microneedle array electrically connected, the microneedle array being mounted to the PCB board 410. It should be noted that the microneedle array is disposed corresponding to the through opening 110 so as to extend out of the housing 100 or move back into the housing 100 through the through opening 110. In addition, microneedle assembly 400 also includes an insulating layer 430, insulating layer 430 being disposed between cold end 322 and PCB board 410. Specifically, the microneedle array penetrates the PCB 410 and is connected to the insulating layer 430. It will be appreciated that insulating layer 430 is capable of conducting heat from the microneedle array to cold end 322 while avoiding conductive contact between the microneedle array and cold end 322. The insulating layer is made of a material with high thermal conductivity, such as ceramic.
Further, as shown in fig. 3, a temperature sensor 431 is further installed in the insulating layer 430, and the temperature sensor 431 is electrically connected with the central control unit of the radio frequency microneedle therapy apparatus. The central control unit can be a main controller in the radio frequency microneedle array control device or a CPU in the radio frequency microneedle therapeutic apparatus, and the main controller in the radio frequency microneedle array control device can also be the CPU in the radio frequency microneedle therapeutic apparatus.
It can be understood that the temperature sensor 431 is used for detecting the temperature of the microneedle electrode 420 and converting the detected temperature into an electrical signal to be fed back to the central control unit of the radio frequency microneedle therapeutic apparatus, so that the central control unit can monitor the temperature of the microneedle electrode 420 in real time. Specifically, the temperature value of the microneedle electrode 420 is obtained by the temperature sensor 431, the central control unit determines whether the temperature of the microneedle electrode 420 exceeds a preset primary temperature threshold or a final alert threshold, and if the temperature exceeds the primary temperature threshold, the central control unit controls to start the refrigeration device 320 for refrigeration or increase the power of the refrigeration device 320; if the temperature exceeds the final warning threshold, the central control unit will control the operation of the driving member 210 to stop and the RF energy output to stop.
Further, as shown in fig. 3, the driving mechanism 200 includes a driving member 210, a transmission member 220 and a driving rod 230, the driving member 210 is in driving connection with the driving rod 230 through the transmission member 220, and the cold guiding assembly 300 is connected with the driving rod 230. It is understood that the driving member 210 drives the driving rod 230 to move through the transmission member 220, so as to drive the cold guide assembly 300 to move, and the microneedle assembly 400 connected to the cold guide assembly 300 also moves.
In this embodiment, a pressure sensor 231 is disposed at an end of the driving rod 230 facing the cold guiding assembly 300, and the pressure sensor 231 is electrically connected to the central control unit. It can be understood that the speed that the microneedle array pricks into skin directly influences the pain sense of human body, and the effort that needs is different when the skin of different people, different positions is pricked, and well accuse unit can adjust driving piece 210's power through the pressure feedback who receives pressure sensor 231, ensures that the microneedle array can prick into human tissue fast, promotes experience effect.
In this embodiment, the driving member 210 is a motor, and the motor is provided with an encoder 211. It can be understood that the encoder 211 can feed back the precise motor stroke, and then feed back the actual depth of the microneedle electrode 420 inserted into the human tissue, and the central control unit can obtain the corrected value of the insertion depth and feed back the corrected value to the motor through the PID algorithm according to the difference between the insertion depth value h1 set by the user and the feedback value h2 of the encoder 211, so as to ensure the accuracy of the depth of the microneedle electrode 420 inserted into the human tissue.
Optionally, a fit sensor may be further disposed on the end surface of the casing 100 contacting with the skin, so as to detect whether the radio frequency microneedle therapeutic apparatus is fitted with the skin during treatment, which is beneficial to guiding a user to correctly operate the therapeutic apparatus, and avoid the situation that the microneedle electrode 420 releases RF energy on the skin surface to cause skin scald, thereby further improving the safety of the treatment process.
The above is only the optional embodiment of the present invention, and not therefore the limit of the patent scope of the present invention, all of which are in the concept of the present invention, the equivalent structure transformation of the content of the specification and the drawings is utilized, or the direct/indirect application is included in other related technical fields in the patent protection scope of the present invention.
Claims (5)
1. A radio frequency microneedle array control apparatus, comprising:
a power supply;
a return electrode;
the micro-needle array comprises a PCB and a plurality of micro-needle electrodes arranged on the PCB;
the input end of the switch switching circuit is connected with the power supply, two first output ends of the switch switching circuit are electrically connected with the microneedle array through a PCB, and a second output end of the switch switching circuit is electrically connected with the return electrode;
a main controller having a unipolar mode and a bipolar mode, the main controller controlling the switch switching circuit to communicate the power supply, the microneedle array, and a return electrode in the unipolar mode; wherein the electric polarities of the microneedle electrodes in the microneedle array are the same;
in a bipolar mode, the main controller controls the switch switching circuit to communicate the power supply and the microneedle array; wherein at least one of the microneedle electrodes in the microneedle array has an electrical polarity opposite to that of the rest of the microneedle electrodes.
2. The radio frequency microneedle array control device according to claim 1, wherein the power supply comprises:
and the radio frequency power supply or the plurality of mutually independent radio frequency power supplies is connected with the switch switching circuit.
3. A radio frequency microneedle therapeutic apparatus comprising the radio frequency microneedle array control device according to any one of claims 1 to 2.
4. The radio frequency microneedle therapy device of claim 3, further comprising:
the device comprises a shell, a first fixing piece and a second fixing piece, wherein one end of the shell is provided with a through hole;
a drive mechanism mounted to the housing;
the cold guide assembly is arranged in the shell and is connected with the driving mechanism; and the number of the first and second groups,
wherein, the micro-needle array in the radio frequency micro-needle array control device is connected to the cold guide component faces one side of the through opening, the cold guide component is used for refrigerating and cooling the micro-needle array, and the driving mechanism is used for driving the cold guide component to move so as to drive the micro-needle array to extend out of the shell or move back into the shell through the through opening.
5. The radio frequency microneedle therapy device according to claim 4, further comprising an insulating layer disposed between the cold conducting assembly and the microneedle array.
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| CN202020965677.XU CN212490128U (en) | 2020-05-30 | 2020-05-30 | Radio frequency micro-needle array control device and radio frequency micro-needle therapeutic apparatus |
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| CN202020965677.XU CN212490128U (en) | 2020-05-30 | 2020-05-30 | Radio frequency micro-needle array control device and radio frequency micro-needle therapeutic apparatus |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021244435A1 (en) * | 2020-05-30 | 2021-12-09 | 深圳半岛医疗有限公司 | Radio frequency micro-needle array control device and method, and radio frequency micro-needle therapeutic apparatus |
| CN114748781A (en) * | 2021-06-02 | 2022-07-15 | 张彧 | Needle head assembly and microneedle drum-type skin physiotherapy instrument |
-
2020
- 2020-05-30 CN CN202020965677.XU patent/CN212490128U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021244435A1 (en) * | 2020-05-30 | 2021-12-09 | 深圳半岛医疗有限公司 | Radio frequency micro-needle array control device and method, and radio frequency micro-needle therapeutic apparatus |
| CN114748781A (en) * | 2021-06-02 | 2022-07-15 | 张彧 | Needle head assembly and microneedle drum-type skin physiotherapy instrument |
| CN114748781B (en) * | 2021-06-02 | 2023-10-20 | 张彧 | Needle head assembly and microneedle roller type skin physiotherapy instrument |
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Address after: 518000 3rd floor, block a, building F2, Changfeng Industrial Park, Liuxian 3rd road, 68 Xin'an street, Bao'an District, Shenzhen City, Guangdong Province Patentee after: Shenzhen Peninsula Medical Group Co.,Ltd. Address before: 518000 3rd floor, block a, building F2, Changfeng Industrial Park, Liuxian 3rd road, 68 Xin'an street, Bao'an District, Shenzhen City, Guangdong Province Patentee before: Shenzhen Peninsula Medical Co.,Ltd. |