CN107224668A - A kind of RF therapy device of frequency conversion - Google Patents
A kind of RF therapy device of frequency conversion Download PDFInfo
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- CN107224668A CN107224668A CN201710591421.XA CN201710591421A CN107224668A CN 107224668 A CN107224668 A CN 107224668A CN 201710591421 A CN201710591421 A CN 201710591421A CN 107224668 A CN107224668 A CN 107224668A
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- impedance
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- therapy device
- controller
- frequency conversion
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- 238000002560 therapeutic procedure Methods 0.000 title claims abstract description 30
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 19
- 238000001514 detection method Methods 0.000 claims description 6
- 230000001225 therapeutic effect Effects 0.000 abstract description 8
- 210000001519 tissue Anatomy 0.000 description 19
- 230000000694 effects Effects 0.000 description 8
- 239000006185 dispersion Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000005070 sampling Methods 0.000 description 3
- 206010002091 Anaesthesia Diseases 0.000 description 2
- 206010028851 Necrosis Diseases 0.000 description 2
- 238000001949 anaesthesia Methods 0.000 description 2
- 230000037005 anaesthesia Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 230000008961 swelling Effects 0.000 description 2
- 208000019901 Anxiety disease Diseases 0.000 description 1
- 206010040954 Skin wrinkling Diseases 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000036506 anxiety Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000002500 effect on skin Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 210000005036 nerve Anatomy 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 210000004304 subcutaneous tissue Anatomy 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
Classifications
-
- 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
- A61N1/328—Applying electric currents by contact electrodes alternating or intermittent currents for improving the appearance of the skin, e.g. facial toning or wrinkle treatment
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves
- A61B5/053—Measuring electrical impedance or conductance of a portion of the body
- A61B5/0531—Measuring skin impedance
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Radiology & Medical Imaging (AREA)
- Engineering & Computer Science (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Plastic & Reconstructive Surgery (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Dermatology (AREA)
- Physics & Mathematics (AREA)
- Biophysics (AREA)
- Pathology (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Surgical Instruments (AREA)
Abstract
The present invention provides a kind of RF therapy device of frequency conversion, including：Inverter circuit, impedance match portion and the controller exported with multi-frequency, wherein, the inverter circuit inputs a power signal, the inverter circuit is sequentially connected with impedance match portion and is connected with the controller, the frequency variation signal switching frequency that the inverter circuit is sent according to the controller, the impedance match portion matches optimum impedance according to the practical impedance of reception and carries out radio frequency output.The present invention carries out RF therapy for different skin, is capable of detecting when the impedance value of skin histology, different according to the dermatological tissue condition for the treatment of, switches to optimal output frequency, so as to improve therapeutic effect and treatment precision.
Description
Technical field
The present invention relates to RF therapy technical field, the RF therapy device of more particularly to a kind of frequency conversion.
Background technology
Radio-frequency technique has a wide range of applications in medical field, and different frequencies have different conductances to biological tissue
Rate.And then different rf frequencies has different heat penetration and thermal dispersion region.Especially in dermocosmesis field, it is related to
Goal treatment tissue there is skin corium, fat deposit, superficial fascia layer, the tissue, the electrical conductivity difference of these tissues such as muscle layer
With more than 10 times.
For example：In the treatment of micropin lattice radio frequency, in dermal treatment, it is necessary to be controlled to contract to tissue heating region
Small clinical side effects, in fat treatment treatment, it is necessary to expand to realize that curative effect is maximized to tissue heating region.Penetrated in single needle
When frequency treats face, for the evaluation of wrinkle treatment of superficial fat, smaller thermal dispersion is needed as far as possible, it is to avoid in therapeutic process
Skin involvement is damaged, and during for the fatty treatment of profound level, bigger thermal dispersion region is needed as far as possible, for improving treatment
Effect.
Therefore, how the frequency that RF therapy device works is improved according to goal treatment tissue difference, makes it have difference
Heat penetration and thermal dispersion region, are the problem of those skilled in the art need solution to improve the precision for the treatment of and efficiency.
The content of the invention
The shortcoming of prior art, is filled it is an object of the invention to provide a kind of RF therapy of frequency conversion in view of the above
Put, can not cause to control curative effect according to treatment tissue different adjustment output frequency for solving RF therapy device in the prior art
The problem of rate and not high precision.
In order to achieve the above objects and other related objects, the present invention provides a kind of RF therapy device of frequency conversion, including：
Inverter circuit, impedance match portion and the controller exported with multi-frequency, wherein, the inverter circuit input one
Power signal, the inverter circuit is sequentially connected with impedance match portion and is connected with the controller, the inverter circuit
The frequency variation signal switching frequency sent according to the controller, the impedance match portion matches optimal according to the practical impedance of reception
Impedance carries out radio frequency output.
In one embodiment of the invention, the inverter circuit includes multiple switch, and each switch correspondence connection one is fixed
Frequency.
In one embodiment of the invention, the impedance match portion carries out impedance using different impedance matching circuits are switched to
Matching, wherein, the impedance matching circuit has multidiameter option switch, per correspondence one impedance of connection of road selecting switch.
In one embodiment of the invention, the impedance match portion carries out impedance matching using current-modulation mode.
In one embodiment of the invention, the impedance match portion combined impedance terminated line is carried out with current-modulation mode
Impedance matching.
In one embodiment of the invention, in addition to Acquisition Circuit, it gathers practical impedance transmission of user's skin histology
To controller.
In one embodiment of the invention, the power signal is produced by power controller, and the power controller connects
Connect controller and receive its setting.
In one embodiment of the invention, the frequency is specified different and set respectively according to application component.
In one embodiment of the invention, the frequency is set according to the input of user interface.
In one embodiment of the invention, the frequency is set according to impedance matching detection mode.
As described above, the RF therapy device of the frequency conversion of the present invention, has the advantages that：
The present invention carries out RF therapy for different skin, the impedance value of skin histology is capable of detecting when, according to treatment
Dermatological tissue condition it is different, optimal output frequency is switched to, so as to improve therapeutic effect and treatment precision.
Brief description of the drawings
Fig. 1 is shown as a kind of RF therapy apparatus structure block diagram for frequency conversion that the present invention is provided；
Fig. 2 is shown as a kind of rate-adaptive pacemaker control structure block diagram that the present invention is provided.
Component label instructions：
1 controller
2 inverter circuits
3 impedance match portions
4 sample circuits
5 power controllers
6 inputs
7 direct currents are inputted
8 RF are exported
A inputting interfaces
B application components
C impedance detections
Embodiment
Illustrate embodiments of the present invention below by way of specific instantiation, those skilled in the art can be by this specification
Disclosed content understands other advantages and effect of the present invention easily.The present invention can also pass through specific realities different in addition
The mode of applying is embodied or practiced, the various details in this specification can also based on different viewpoints with application, without departing from
Various modifications or alterations are carried out under the spirit of the present invention.It should be noted that, in the case where not conflicting, following examples and implementation
Feature in example can be mutually combined.
It should be noted that the diagram provided in following examples only illustrates the basic structure of the present invention in a schematic way
Think, then in schema only display with relevant component in the present invention rather than according to component count, shape and the size during actual implement
Draw, it is actual when implementing, and kenel, quantity and the ratio of each component can be a kind of random change, and its assembly layout kenel
It is likely more complexity.
Referring to Fig. 1, a kind of RF therapy apparatus structure block diagram of frequency conversion is provided for the present invention, including：
Inverter circuit 2, impedance match portion 3 and the controller 1 exported with multi-frequency, wherein, the inverter circuit 2 is defeated
Enter a power signal, the inverter circuit is sequentially connected with impedance match portion and is connected with the controller, the inversion
The frequency variation signal switching frequency that circuit 2 is sent according to the controller 1, the impedance match portion is according to the practical impedance of reception
Radio frequency output is carried out with optimum impedance.
Wherein, inverter circuit includes multiple switch, and each switch correspondence one fixed frequency of connection, closure respective switch is cut
Change the power signal of rate-adaptive pacemaker different frequency, the skin histology that the impedance match portion is collected according to Acquisition Circuit it is true
Impedance matching goes out optimum impedance (that is, impedance value is closest or equal to real impedance value).
Specifically, impedance matching circuit acquiescence resistance is 50 ohm, then corresponds to the selecting switch closure of 50 ohm of connection and make
Its resistance value is 50 ohm, and the frequency of inverter circuit acquiescence is 1MHZ, then corresponds to connection 1MHZ switch closure and make its defeated
Go out 1MHZ frequency.Input 6 inputs a duty cycle pulse signal to controller 1, and direct current input 7 is provided to power controller 5
Power, the intercommunication of controller 1 and power controller 5, the transmitting power control signal of controller 1 adjusts Power Control
The watt level of device 5, the big minor adjustment of DC current its power for mainly controlling to flow through, controller 1 is according to pulse signal
Duty ratio control RF outputs 8 export rf wave and treated.And inverter circuit 2 controls the output frequency of power, inverter circuit 2 connects
The frequency of the frequency translation signal power switched signal of admission controller 1, impedance match portion 3 receives the impedance matching letter of controller 1
Number control impedance output.
The present invention carries out RF therapy for different skin, the impedance value of skin histology is capable of detecting when, according to treatment
Dermatological tissue condition it is different, optimal output frequency is switched to, so as to improve therapeutic effect and treatment precision.
In the present embodiment, using circuit regulative mode, in sampling process, a shorter pulse, sampling electricity are inputted
The electric current and voltage that road 4 flows through tissue by detection can calculate practical impedance, for example：The matching power output of impedance circuit is
P1=I2R1, the power output P2=I of practical impedance2R2 has differences, and its difference ratio is R2/R1, by adjusting the straight of input
The size for flowing electric current realizes output identical power P, normally, using above-mentioned impedance matching calculation, can be penetrated in the presence of one
The problem of frequency delivery efficiency is low, when especially operating at full capacity, or resistance difference it is excessive when, it is impossible to realize target call
Power output, while it is long-term at full capacity or overlond running, a series of equipment Risks can be brought.
In another embodiment, using impedance circuit (impedance matching circuit) regulative mode, sample circuit is used to detect
The practical impedance of skin histology, when getting the practical impedance of skin histology, calls impedance matching circuit output equal thereto
Or extremely close impedance value, impedance matching circuit has multidiameter option switch, per correspondence one impedance of connection of road selecting switch
Value, wherein, the quantity of selecting switch is preferably 1~50, and the impedance matching precision of the more correspondence outputs of its quantity is higher, with reality
The resistance of border impedance is more identical.Because tissue conventional impedance is about 10~500 ohm, because of the circuit of impedance matching circuit
It is limited, it is impossible to which that corresponding impedance ranges value may be 5 on output and the identical impedance value of practical impedance, a general circuit
Ohm, 10 ohm, 20 ohm or 50 ohm, the circuit specifically included may be 1~50 group, impedance concentrated area or impedance compared with
Hour, the resolution ratio of impedance matching circuit is lower, and the resolution ratio of impedance large area is relatively low, for example, impedance is compared with cell
Domain, impedance matching circuit region is 1 ohm；Impedance large area, impedance matching circuit region is 50 ohm.Wherein, impedance
With practical impedance of the circuit according to the reception sample circuit of controller, calculate multidiameter option switch Zhong Na roads or which road selection is opened
Close and close, so as to export closest or most appropriate impedance.
In the present embodiment, impedance matching is carried out with switching impedance matching circuit with reference to current-modulation mode, and uses resistance
Anti- line matching output calculates resistance ratio between practical impedance and output impedance, according to need closest to the resistance of practical impedance
Equal-wattage value is exported, the error between impedance value ratio is adjusted using current-modulation mode, in the manner described above
Synergic adjustment, can further improve the accuracy rate of impedance matching, so that impedance match portion matches optimum impedance value, so as to improve
The effect and precision for the treatment of.
Referring to Fig. 2, a kind of rate-adaptive pacemaker control structure block diagram provided for the present invention, including inputting interface A, application section
Part B, tri- kinds of modes of impedance detection C are controlled to frequency.First, because no application component needs to be directed to different tissues area
Domain is treated, in order that each tissue regions quickly gets optimal frequency and treated, can typically give tacit consent to selection application
The rate-adaptive pacemaker that part is specified, so as to increase the therapeutic effect of clinical indication.Second, first determining that user is clinical before treatment
Idicatio, output frequency is preferably selected according to clinical indication difference, can particular for medical personnel or the user of the understanding state of an illness
Output frequency is needed accurately to treat clinical indication using inputting interface selection.Third, application component is for tissue
It can also be had differences during treatment because of the situation difference residing for tissue, for example, in the fatty coagulation necrosis of operative treatment, because injection
Swelling anaesthesia dosage is different, and its impedance has significant difference, and thermal dispersion ability can also exist because of injection swelling anaesthesia dosage
Difference.In order to obtain impedance matching, it is necessary to which sample circuit detects the specific situation of user's skin histology in real time, when it changes
When, the impedance variations of tissue can be distinguished automatically, so that adjust output frequency to obtain the output frequency required for target, and this
When, automatic switchover frequency is realized in the cooperation for generally requiring impedance detection mode.
Double sampling can be also carried out even if after frequency shift or multiple repairing weld carries out the calculating of impedance matching, with preventing tissue
Impedance changes, wherein, inverter circuit includes multiple switch, each switch correspondence one fixed frequency of connection, when closing certain
During one switch, export its corresponding frequency, and number of switches is 1~10, preferably 5, can according to the increase in demand of user or
Delete, and switch the common frequency of correspondence connection, such as：300KHz, 460KHz, 800KHz, 1MHz, 2MHz, 2.45MHz, 3MHz,
4MHz, 6MHz, 6.78MHz, 10MHz etc..
And in three kinds of modes that FREQUENCY CONTROL is exported, the preferred mode of the third impedance matching, because different clinical suitable
The different optimum frequencies of needs should be demonstrate,proved to be treated, and most users are will not to operate RF therapy device or be ignorant of which skin group
Knit and correspond to that what frequency power carries out therapeutic effect preferably, the frequency adapted to is exported according to the different situations of skin histology and is controlled
It is often optimal selection to treat, and can also obtain optimal therapeutic effect.For example：Microneedle array carries out corium anxiety treatment, its impedance
Corresponding optimized frequency is 1~2MHZ；Microneedle array carries out fatty coagulation necrosis treatment, in order to ensure more large area thermal dispersion area
Domain, the corresponding optimized frequency of its impedance is 460KHZ；Pin type procedures electrode application component, when it acts on fatty deep layer, its
The corresponding optimized frequency of impedance is 1MHZ；And when the fatty upper strata even skin corium of its effect, the corresponding optimized frequency of its impedance
For 2~4MHZ；When it, which carries out nerve, strips off, the corresponding optimized frequency of its impedance is 6MHZ.No matter above-mentioned many examples are from just
Face or side, which all demonstrate for different skin histologies treat, needs the rf wave of different frequency to accomplish effectively
Treatment, so as to reach splendid therapeutic effect.
In the present embodiment, RF therapy device is when starting treatment, and its impedance matching circuit acquiescence resistance is 50 ohm,
The frequency of inverter circuit acquiescence is 1MHZ, and the actual impedance of sample circuit collection user's skin histology is inputted to controller, control
Device selects its corresponding frequency according to the actual impedance of reception, and now the power signal of the predetermined power is sent according to controller
Frequency translation signal be switched to corresponding fixed frequency, make the power signal of output fixed frequency.By the work(of the fixed frequency
Rate signal loading is accurately RF therapy ripple, is more conducive to clinic to externally exporting in the impedance matched with actual impedance
Effective treatment of idicatio, wherein, on matching the mode of actual impedance as described above, not repeating one by one herein.
In summary, the present invention carries out RF therapy for different skin, is capable of detecting when the impedance value of skin histology,
It is different according to the dermatological tissue condition for the treatment of, optimal output frequency is switched to, so as to improve therapeutic effect and treatment precision.
So, the present invention effectively overcomes various shortcoming of the prior art and has high industrial utilization.
The above-described embodiments merely illustrate the principles and effects of the present invention, not for the limitation present invention.It is any ripe
Know the personage of this technology all can carry out modifications and changes under the spirit and scope without prejudice to the present invention to above-described embodiment.Cause
This, those of ordinary skill in the art is complete without departing from disclosed spirit and institute under technological thought such as
Into all equivalent modifications or change, should by the present invention claim be covered.
Claims (10)
1. a kind of RF therapy device of frequency conversion, it is characterised in that including：Inverter circuit, impedance with multi-frequency output
Matching part and controller, wherein, the inverter circuit inputs a power signal, the inverter circuit and impedance match portion successively phase
It is connected even and with the controller, the frequency variation signal switching frequency that the inverter circuit is sent according to the controller, institute
State impedance match portion and optimum impedance progress radio frequency output is matched according to the practical impedance of reception.
2. the RF therapy device of frequency conversion according to claim 1, it is characterised in that the inverter circuit is opened comprising multiple
Close, each switch correspondence one fixed frequency of connection.
3. the RF therapy device of frequency conversion according to claim 1, it is characterised in that the impedance match portion is using switching
Impedance matching is carried out to different impedance matching circuits, wherein, the impedance matching circuit has multidiameter option switch, the selection per road
Switch correspondence one impedance of connection.
4. the RF therapy device of frequency conversion according to claim 1, it is characterised in that the impedance match portion uses electric current
Modulation system carries out impedance matching.
5. the RF therapy device of frequency conversion according to claim 1, it is characterised in that the impedance match portion combined impedance
Terminated line carries out impedance matching with current-modulation mode.
6. the RF therapy device of the frequency conversion according to any one in Claims 1 to 5, it is characterised in that also including adopting
Collector, its practical impedance for gathering user's skin histology is sent to controller.
7. the RF therapy device of frequency conversion according to claim 1, it is characterised in that the power signal is Power Control
Produced by device, the power controller connection controller receives its setting.
8. the RF therapy device of frequency conversion according to claim 1, it is characterised in that the frequency refers to according to application component
Determine different and set respectively.
9. the RF therapy device of frequency conversion according to claim 1, it is characterised in that the frequency is according to user interface
Input is set.
10. the RF therapy device of frequency conversion according to claim 1, it is characterised in that the frequency is according to impedance matching
Detection mode is set.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710591421.XA CN107224668A (en) | 2017-07-19 | 2017-07-19 | A kind of RF therapy device of frequency conversion |
| US15/850,596 US20180271589A1 (en) | 2017-03-24 | 2017-12-21 | Microneedle treatment apparatus and variable frequency rf treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710591421.XA CN107224668A (en) | 2017-07-19 | 2017-07-19 | A kind of RF therapy device of frequency conversion |
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| Publication Number | Publication Date |
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| CN107224668A true CN107224668A (en) | 2017-10-03 |
Family
ID=59956536
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| CN201710591421.XA Pending CN107224668A (en) | 2017-03-24 | 2017-07-19 | A kind of RF therapy device of frequency conversion |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108539991A (en) * | 2018-06-12 | 2018-09-14 | 深圳半岛医疗有限公司 | Intelligent digital medical treatment power supply |
| CN108744269A (en) * | 2018-04-08 | 2018-11-06 | 南京艾威奇医疗器械有限公司 | Radiofrequency signal output system and cell-stimulating equipment |
| CN108969884A (en) * | 2018-08-24 | 2018-12-11 | 重庆半岛医疗科技有限公司 | A kind of multi-source electrode therapy device |
| CN112190833A (en) * | 2020-09-30 | 2021-01-08 | 深圳半岛医疗有限公司 | Radio frequency microneedle array control method and device and radio frequency microneedle therapeutic apparatus |
| CN114191707A (en) * | 2021-12-15 | 2022-03-18 | 广东时光颜究所美容科技有限公司 | Skin impedance-based cosmetic instrument radio frequency power control method and equipment |
| CN114247053A (en) * | 2022-01-26 | 2022-03-29 | 云南贝泰妮生物科技集团股份有限公司 | Self-adaptive frequency conversion system for radio frequency beauty instrument |
| CN114288555A (en) * | 2022-01-26 | 2022-04-08 | 云南贝泰妮生物科技集团股份有限公司 | Radio frequency beauty instrument self-adaptive frequency modulation system based on skin impedance |
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| CN104337568A (en) * | 2013-07-24 | 2015-02-11 | 柯惠有限合伙公司 | Systems and methods for generating electrosurgical energy using a multistage power converter |
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| CN106237513A (en) * | 2016-08-28 | 2016-12-21 | 杭州瑞彼加医疗科技有限公司 | Non-intruding infiltration type radio frequency diagnostic equipment |
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| CN105530862A (en) * | 2013-05-06 | 2016-04-27 | 尤伦·帕提 | Apparatus and methods for treating a tumor with an alternating electric field and for selecting a treatment frequency based on estimated cell size |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108744269A (en) * | 2018-04-08 | 2018-11-06 | 南京艾威奇医疗器械有限公司 | Radiofrequency signal output system and cell-stimulating equipment |
| CN108539991A (en) * | 2018-06-12 | 2018-09-14 | 深圳半岛医疗有限公司 | Intelligent digital medical treatment power supply |
| CN108969884A (en) * | 2018-08-24 | 2018-12-11 | 重庆半岛医疗科技有限公司 | A kind of multi-source electrode therapy device |
| CN112190833A (en) * | 2020-09-30 | 2021-01-08 | 深圳半岛医疗有限公司 | Radio frequency microneedle array control method and device and radio frequency microneedle therapeutic apparatus |
| CN114191707A (en) * | 2021-12-15 | 2022-03-18 | 广东时光颜究所美容科技有限公司 | Skin impedance-based cosmetic instrument radio frequency power control method and equipment |
| CN114247053A (en) * | 2022-01-26 | 2022-03-29 | 云南贝泰妮生物科技集团股份有限公司 | Self-adaptive frequency conversion system for radio frequency beauty instrument |
| CN114288555A (en) * | 2022-01-26 | 2022-04-08 | 云南贝泰妮生物科技集团股份有限公司 | Radio frequency beauty instrument self-adaptive frequency modulation system based on skin impedance |
| CN114288555B (en) * | 2022-01-26 | 2023-02-28 | 云南贝泰妮生物科技集团股份有限公司 | Radio frequency beauty instrument self-adaptive frequency modulation system based on skin impedance |
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Application publication date: 20171003 |
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