CN208989123U - A kind of optional RF ablation signal of frequency occurs and control circuit - Google Patents
A kind of optional RF ablation signal of frequency occurs and control circuit Download PDFInfo
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- CN208989123U CN208989123U CN201820961339.1U CN201820961339U CN208989123U CN 208989123 U CN208989123 U CN 208989123U CN 201820961339 U CN201820961339 U CN 201820961339U CN 208989123 U CN208989123 U CN 208989123U
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Abstract
Occur the utility model discloses a kind of optional RF ablation signal of frequency and control circuit, the circuit occur circuit, rf power amplifier circuit, radio frequency signal detecting circuitry, frequency selective network and output isolation circuit etc. by microprocessor, radio frequency power controlling circuit, controllable direct current power supply, fundamental frequency signal and constitute.The circuit of the utility model can satisfy the requirement that the required radio frequency of high-end clinic is precisely controlled, it realizes in tissue ablation process, reaches the accurate treatment to target tissue with the frequency of control RF ablation signal by selecting, and circuit is simple, debugging is convenient, control is flexible, and complexity is low.
Description
Technical field
The utility model relates to medical instruments fields, relate more specifically to a kind of optional RF ablation signal generation of frequency
With control circuit.
Background technique
Based on the RF ablation of radio frequency electromagnetic field bio-heating effectiveness, i.e. radio frequency hatching in situ is outside oncotherapy, ambition
It is all widely used in section, neurosurgery, gynaecology and Urology Surgery etc. clinic, all kinds of corresponding Medical Devices are also
Largely occurred.In radio-frequency ablation procedure, radiofrequency ablation therapy system output power properly whether it is most important, it is too low, reach
It is excessively high and target tissue can be made to gasify because of high temperature and be carbonized less than the purpose of ablation, while good ablation effect is not achieved,
And target tissue is in irregular shape, in order to consider the conformal therapy to target tissue, it is necessary to consider that the reality of tissue
Border structure carries out research heating means from the basic principle of radio frequency heating, to realize the preferably ablation to each tissue, especially
For heating to treat for the small patch in angiocarpy inside.
The radio frequency of different frequency is all different to the ablation size and depth of ablation of target tissue in radiofrequency ablation procedures,
Haemmerich et al. modeling analysis tumor tissues and normal tissue are inside 10kHz and 500kHz rf frequency effect undertissue
The distribution of current field and temperature field has obtained may be implemented preferentially heating tumour at a lower frequency without injuring normal tissue
As a result；Ekstrand et al. to how using radio frequency preferentially heat the tumor tissues in breast cancer without injure around fatty exhibition
Open research；Franco et al. studies ability fatty in RF ablation biological tissue, and which employs 500kHz and 4MHz
Rf frequency heats pork, it is found that the radio frequency heating range of 500kHz is bigger, but heating speed is slower, the radio frequency of 4MHz
With faster heating speed but heated perimeter it is relatively small.Blenky et al. has studied different radio frequency frequency and wears to biological tissue
The influence of saturating depth, and experiments prove that penetration depth reduces with the increase of frequency.Therefore, different radio frequency frequency melts
The ablation range and depth of ablation of target tissue can be changed, can be realized by control therapeutic strategy to the thorough of target tissue
Bottom ablation.
Therefore, this field still lacks a kind of radio-frequency signal generating circuit, which can according to need selection specific frequency
It is operated, to realize effective ablation to target tissue.
Utility model content
The purpose of this utility model is to provide a kind of optional RF ablation signal generation of frequency and control circuit, the electricity
Road can be used in the laboratory apparatus of different frequency radiofrequency ablation therapy, provide circuit support and technical solution for it.By this reality
It can be simultaneously emitted by the RF therapy signal of multi-frequency with novel circuit, then cooperate control method appropriate, realization pair again
Effective ablation of target tissue and precisely treatment.
The utility model provides that a kind of optional RF ablation signal of frequency occurs and control circuit, the circuit include micro-
Circuit, rf power amplifier circuit, radio frequency letter occur for processor, radio frequency power controlling circuit, controllable direct current power supply, fundamental frequency signal
Number detection circuit, frequency selective network and radio frequency output isolation circuit；The fundamental frequency signal occurs circuit and receives micro- place
The high-frequency square-wave signal that the fundamental frequency that device issues controls generation corresponding frequencies after signal is managed, power amplifier tube driving electricity is transferred to
Lu Hou exports the pumping signal of corresponding frequencies, is transferred to the fundamental frequency input terminal of the rf power amplifier circuit；The frequency choosing
The frequency request that circuit receives the microprocessor is selected, the impedance matching in the rf power amplifier circuit under the frequency is adjusted
Network generates the RF ablation signal of corresponding frequencies；The radio frequency power controlling circuit receives the power control of the microprocessor
Signal processed converts thereof into corresponding controllable direct current power supply control signal, controls the adjustable DC power supply output corresponding power
Power supply, load in the rf power amplifier circuit, the RF ablation signal of corresponding power occurs, and pass through radio frequency isolation
Circuit function in treatment probe, by RF ablation signal function in treatment tissue, the radio frequency isolation circuit using transformer every
From.
In another preferred example, over the course for the treatment of, in the radio frequency signal detecting circuitry real-time monitoring therapeutic process
Radio-frequency power and tissue impedance.
In another preferred example, the radio frequency power controlling circuit receives the pwm signal that the microprocessor occurs, and will
The pwm signal turns potential circuit by PWM, and the variable DC voltage control signal of output amplitude acts on described controllable straight
The control signal in galvanic electricity source exports the adjustable DC voltage control signal of more powerful amplitude, acts on the radio frequency function
The power input of rate amplifying circuit.
In another preferred example, the rf power amplifier circuit includes filter circuit, series resonance power amplification circuit,
Impedance matching circuit.
In another preferred example, parameter can pass through the frequency selective network in the series resonance power amplification circuit
It is adjusted, the resonance circuit of respective radio-frequency occurrence frequency occurs；The impedance matching circuit is by the frequency selective network tune
Corresponding frequencies are saved with matching network.
In another preferred example, the series resonance power amplification circuit uses LC series resonance.
In another preferred example, the capacitor C in the resonance circuit is fixed value, and inductance L has adjustable output, can pass through
The frequency selective network is selected, while selecting impedance matching network parameter appropriate by the frequency selective network,
So that the circuit carries out resonance under intrinsic frequency, and then issue radiofrequency signal.
In another preferred example, the radio frequency signal detecting circuitry includes isolation coupling circuit, current rectifying and wave filtering circuit, signal
Amplifying circuit and photoelectric isolating circuit, the radio frequency signal detecting circuitry can be realized the electricity of different frequency RF ablation signal
Pressure, current detecting.
In another preferred example, the isolation coupling circuit uses the electric current of coupling inductance isolation coupling RF output end,
Current signal is converted into voltage signal again, after being rectified by the current rectifying and wave filtering circuit, is put by the signal amplification circuit
Greatly, it is then output to the microprocessor A/D by the photoelectric isolating circuit to convert, sensed current signal；The detection of voltage
It is directly detected in high-frequency isolation transformer input terminal, later by the current rectifying and wave filtering circuit, signal amplification circuit, described
Photoelectric isolating circuit is input to the microprocessor A/D conversion, detects radio-frequency voltage；What the last microprocessor will test
Voltage and electric current calculate radio-frequency power and tissue impedance according to Ohm's law.
In another preferred example, the optional radiofrequency signal reference frequency output of the circuit is between 100KHz-3MHz
It is one or more.
In another preferred example, the circuit can only have a kind of optional radiofrequency signal, can also there are many optional
Radiofrequency signal.
It should be understood that in the scope of the utility model, above-mentioned each technical characteristic of the utility model and below (such as implementation
Example) in specifically describe each technical characteristic between can be combined with each other, to form a new or preferred technical solution.It is limited to
Length, not repeated them here.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art does and simply introduces, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is that the optional RF ablation signal of one of one example of the utility model frequency occurs and control circuit
Structural schematic diagram.
Fig. 2 is the circuit of frequency optional RF ablation the signal generation and control circuit in one example of the utility model
Figure.
Fig. 3 is the structural schematic diagram of the radio frequency signal detecting circuitry in one example of the utility model.
Specific embodiment
The present inventor after extensive and in-depth study, by largely screening, develops a kind of frequency for the first time and optionally penetrates
Frequency ablation signal occurs and control circuit, a variety of different frequencies of generation that especially can be selective in same system are penetrated
Frequency ablation signal, compared with prior art, the RF ablation signal generating circuit of the utility model can effectively overcome existing list
The deficiency of one RF ablation signal generating circuit can form a treatment system by the radio-frequency signal generating circuit of the utility model
System, the treatment system can issue the RF therapy signal of multi-frequency, then cooperate control method appropriate again, quickly control not
The radio frequency of same frequency realizes effective ablation to target tissue, while advantageously accounting for needing to use different radio frequency ablation frequency
The research and development for realizing the instruments such as influence research of the accurate treatment or different frequency radio frequency to tissue to therapeutic effect, in this base
The utility model is completed on plinth.
The utility model provides a kind of optional RF ablation signal of frequency and occurs and control circuit, it is that one kind has
The circuit of specific structure.
Typically, the optional RF ablation signal generation of the frequency of the utility model and control circuit, including microprocessor,
Circuit, rf power amplifier circuit, radio-frequency signal detection occur for radio frequency power controlling circuit, controllable direct current power supply, fundamental frequency signal
Circuit, frequency selective network and radio frequency output isolation circuit.The selection of radio frequency selection circuit, which is controlled, by microprocessor adjusts phase
It answers the impedance matching network of frequency and adjusts resonant circuit parameters, and control fundamental frequency signal and circuit generation corresponding frequencies occur
Pumping signal；The radio-frequency power of microprocessor control simultaneously adjusts circuit and issues radio-frequency power adjustment signal, controls controllable direct current
The output in source, the pumping signal that then fundamental frequency signal occurs that circuit generates acts on simultaneously with controllable direct current power supply control output penetrates
The radiofrequency signal of corresponding frequencies occurs by frequency selective network, radiofrequency signal is finally passed through output for frequency power amplification circuit
Isolation circuit is transferred to rf probe, acts on tissue and is treated.Over the course for the treatment of, instrument is examined by radiofrequency signal
Impedance and power in slowdown monitoring circuit real-time monitoring therapeutic process.
In another preferred example, radio frequency power controlling circuit includes that circuit occurs for PWM, pwm signal turns potential circuit, electricity
Press amplifying circuit.
In another preferred example, controllable direct current power supply is 0-100V controllable linear out-put supply
In another preferred example, rf power amplifier circuit includes chokes filter circuit, rf power amplifier circuit, series connection
Resonance circuit, impedance matching circuit.
In another preferred example, radio frequency output isolation circuit primarily to prevent radio circuit directly with human contact and
The spacing output circuit done, plays the protective effect to human body, mainly uses transformer isolation mode
In another preferred example, radio frequency signal detecting circuitry includes radiofrequency signal coupling circuit, current rectifying and wave filtering circuit, letter
Number amplifying circuit, photoelectric isolating circuit
In another preferred example, the circuit side of including wave generation circuit, power tube drive circuit occur for fundamental frequency signal, can be with
It needs the square wave of frequency that a variety of different crystal oscillators also can be used using programmable logic device generation to be divided to obtain, then will
The square wave of generation is transferred to power tube drive circuit, pumping signal needed for issuing power amplifier tube.
The major advantage of the utility model includes:
(a) it can be used for ablation instrument, realize effective ablation to target tissue；
(b) research influenced for different frequency for RF ablation pushes Developments；
(c) structure is simple, and complexity is low, practical；
(d) accurate treatment of the frequency realization to tissue is melted by different radio frequency.
Therefore, the optional RF ablation signal generating circuit of the frequency of the utility model and relevant control circuit, energy
It is enough applied in the instrument research for carrying out ablation using the advantage of different frequency or different frequency disappears for radio frequency
Melt in the correlative study of influence, to realize effective ablation to target tissue and the accurate treatment etc. to tissue.
The present invention will be further illustrated below in conjunction with specific embodiments.It should be understood that these embodiments are merely to illustrate this
Utility model rather than limitation the scope of the utility model.In addition, attached drawing is schematic diagram, therefore utility model device and set
Standby is not limited by the size or ratio of the schematic diagram.
It should be noted that in the claim and specification of this patent, such as first and second or the like relationship
Term is only used to distinguish one entity or operation from another entity or operation, without necessarily requiring or implying
There are any actual relationship or orders between these entities or operation.Moreover, the terms "include", "comprise" or its
Any other variant is intended to non-exclusive inclusion so that include the process, methods of a series of elements, article or
Equipment not only includes those elements, but also including other elements that are not explicitly listed, or further include for this process,
Method, article or the intrinsic element of equipment.In the absence of more restrictions, being wanted by what sentence " including one " limited
Element, it is not excluded that there is also other identical elements in the process, method, article or apparatus that includes the element.
Embodiment one
The optional radiofrequency signal of the frequency of the present embodiment occurs and control circuit includes microprocessor, radio-frequency power control
Circuit, rf power amplifier circuit, radio frequency signal detecting circuitry, frequency selection occur for circuit, controllable direct current power supply, fundamental frequency signal
Circuit and output isolation circuit.
Microprocessor utilizes Programmed control, sends frequency required for work at present to fundamental frequency signal and circuit occurs, so
The frequency request that circuit receives control signal occurs for fundamental frequency signal afterwards, issues the square wave of corresponding frequencies, is transferred to power tube drive
Dynamic circuit, issues fundamental frequency pumping signal, is transferred to the pumping signal input terminal of rf power amplifier circuit.
Microprocessor regulates and controls radio frequency power controlling circuit by the control mode of PWM, then radio frequency power controlling circuit, hair
Corresponding control signal out, control controllable direct current power supply export a certain size direct current signal, act on rf power amplifier circuit.
Microprocessor sends frequency selection control signal, and then frequency selective network receives the control signal of corresponding frequencies
Afterwards, the parameter in the series resonant network in rf power amplifier circuit, and the impedance spectrum net of selection corresponding frequencies are adjusted
Network.
Rf power amplifier circuit mainly by the way of E power-like amplifier, controllable direct current power supply is exported controllable
DC power supply is filtered by chokes, amplification, series resonance, and the circuits such as impedance matching network generate corresponding frequencies and certain amplitude
Radiofrequency signal, then radiofrequency signal is output in human body by output isolation circuit and is accurately treated, and is believed by radio frequency
Number detection circuit treats the electric-physiology parameter of tissue during real-time detection feedback treating.
Embodiment two
As shown in Figure 1, the optional RF ablation signal of the frequency of the present embodiment occurs with control circuit to include microprocessor
A, circuit C, frequency selective network D, rf power amplifier circuit E, controllable straight occurs for radio frequency power controlling circuit B, fundamental frequency signal
Galvanic electricity source F, radio frequency signal detecting circuitry G and radio frequency output isolation circuit H.
Microprocessor A exports work at present rf frequency and controls signal, is transmitted to fundamental frequency signal and circuit C occurs, then base
Frequency signal generating circuit C issues the high frequency square wave pumping signal of corresponding frequencies, and the fundamental frequency for being linked into rf power amplifier circuit E is defeated
Enter signal end；Microprocessor A issues work at present radio-frequency power and controls signal simultaneously, is transmitted to radio frequency power controlling circuit B, then
The control signal for issuing controllable direct current power supply by radio frequency power controlling circuit B exports corresponding size to controllable direct current power supply F
Controllable direct current signal is transferred to the power input of rf power amplifier circuit E；And at the same time frequency selective network D, selection are penetrated
In frequency power amplifier E, impedance matching network under corresponding present operating frequency, finally by the output of radio-frequency power amplifier
The radiofrequency signal of end output corresponding frequencies is output to treatment tissue by radio frequency output isolation circuit H and carries out RF therapy.And
Radiofrequency signal during radio frequency signal detecting circuitry G real-time detection Current therapeutic, the related physiological parameters with treatment tissue
Information, feedback are handled to microprocessor A, and then microprocessor A adjusts radio frequency output according to the treatment signal of feedback.
The rf power amplifier circuit E of the present embodiment is not limited to single-ended mainly using E class power amplification circuit
The E class power amplification circuit of input or double-width grinding.Power amplification type metal-oxide-semiconductor is mainly used in power amplification circuit as function
Rate amplifier.As shown in Fig. 2, circuit C sending high frequency square wave pumping signal, which occurs, for fundamental frequency signal acts on power amplifier tube AQ1's
Grid, to provide fundamental frequency signal, the voltage signal that then controllable constant-current source issues is accessed after filter circuit in high frequency choke
Enclose L1.The high frequency choke coil L1 plays the role of constant current in circuit, according to the working principle of E class power amplification circuit,
High frequency choke coil L1, which can be calculated, should meet formula (1):
In above formula, L1 is the inductance value of high frequency choke coil；F is rf frequency；C3 is the capacitance of capacitor.To meet electricity
The bandwidth requirement of selected radio frequency in road, the value of capacitor C3 is fixed, and sets minimum frequency f for the value of high frequency choke coil L1minWhen
Corresponding inductance value complies with the design requirement of all optional rf frequencies.The power supply signal in controllable constant-current source is by filtering
Circuit is connected to the source level of power amplifier tube AQ1, the capacitor being connected in LC series resonant circuit with after high frequency choke coil L1
C4, C4 connect with series resonance inductor L2.The series resonance inductor L2 is variable inductance, by frequency selective network C root
It requires to carry out selection adjusting according to the rf frequency of work at present.The signal that series resonance comes out accesses impedance matching network, described
Impedance matching network devise the impedance matching networks of a variety of different frequencies, and using frequency selective network C to its frequency
Under impedance network selected.The signal come out from impedance matching network is the radiofrequency signal of sine wave.Last radiofrequency signal
By output isolation circuit H, it is output to RF therapy probe, acts on treatment tissue, the output isolation circuit is mainly adopted
With transformer isolation.In the input front end of output isolation circuit, by radio-frequency voltage incoming radio frequency signal detection circuit G, and
By the way of inductive coupling, by current coupling to the radio-frequency current coupling circuit, the sampling of RF therapy electric current is carried out.
Shown in attachment 3, radio frequency signal detecting circuitry mainly has radio frequency voltage signal detection circuit and current radio frequency signal inspection
Slowdown monitoring circuit composition, wherein radio-frequency current detection circuit first passes around isolation coupling circuit, then turns potential circuit G1 by electric current
The current signal of coupling is converted into voltage signal, is converted into d. c. voltage signal using half-wave precise rectification circuit G21, is passed through
Micro- place is linked into after crossing filter circuit G31, DC voltage amplifying circuit G41, signal isolation circuit G51, A/D conversion circuit G61
It manages device A and carries out signal acquisition process, the current signal value in the real-time detection course of work.The radio-frequency voltage detection circuit,
The voltage signal for directly acquiring the front end radio frequency output isolation circuit G, then passes through half-wave precise rectification circuit G22, filter circuit
Be linked into after G32, DC voltage amplifying circuit G42, signal output isolation circuit G52, A/D conversion circuit G62 microprocessor A into
Row signal acquisition.Last microprocessor A calculates real-time treatment power and tissue according to the current signal and voltage signal of acquisition
Impedance, and monitor treatment energy.
Rf power amplifier circuit B receives the pulse width modulation (PWM) signal that microprocessor A is issued, then by pwm signal
Turn potential circuit by pwm signal and is converted into corresponding adjustable dc voltage signal.Adjustable dc voltage in the present embodiment
The value of signal is 0~5V, is the change with PWM duty cycle and changes, and the frequency of pwm signal can be arbitrarily to conform to
The frequency asked.Adjustable dc voltage signal is input to the control signal of controllable direct current power supply F later.The controllable direct current
Source is using switch DC regulated power supply, and voltage output end is linked into radio frequency power controlling circuit E, and voltage is with input
The variation of control voltage changes linearly, and improves control precision.
Occur and control circuit in conclusion the utility model provides a kind of optional RF ablation signal of frequency, energy
It is enough applied to the Instrument Design that different radio frequency frequency signal is precisely treated, and the RF ablation for being not limited to tumour is controlled
Treat instrument, radio frequency defibrillation, cardiovascular disease radiofrequency ablation therapy.
It is incorporated herein by reference in all documents that the utility model refers to, just as each document quilt
It is individually recited as with reference to such.In addition, it should also be understood that, after having read the above-mentioned teaching content of the utility model, this field skill
Art personnel can make various changes or modifications the utility model, and such equivalent forms equally fall within the application appended claims
Book limited range.
Claims (8)
1. a kind of optional RF ablation signal of frequency occurs and control circuit, which is characterized in that the circuit includes micro process
Circuit, rf power amplifier circuit, radiofrequency signal inspection occur for device, radio frequency power controlling circuit, controllable direct current power supply, fundamental frequency signal
Slowdown monitoring circuit, frequency selective network and radio frequency output isolation circuit；
The fundamental frequency signal occurs to generate corresponding frequencies after circuit receives the fundamental frequency control signal that the microprocessor issues
High-frequency square-wave signal, after being transferred to power amplification tube drive circuit, export the pumping signal of corresponding frequencies, be transferred to described penetrate
The fundamental frequency input terminal of frequency power amplification circuit；
The frequency selective network receives the frequency request of the microprocessor, adjusts the radio-frequency power amplification electricity under the frequency
Impedance matching network in road generates the RF ablation signal of corresponding frequencies；
The radio frequency power controlling circuit receives the power control signal of the microprocessor, converts thereof into corresponding controllable straight
Power control signal is flowed, the power supply of the adjustable DC power supply output corresponding power is controlled, load is amplified in the radio-frequency power
The RF ablation signal of corresponding power occurs for circuit, and by radio frequency isolation circuit function in treatment probe, by RF ablation
Signal function uses transformer isolation in treatment tissue, the radio frequency isolation circuit.
2. circuit according to claim 1, which is characterized in that over the course for the treatment of, the radio frequency signal detecting circuitry is real
When monitoring therapeutic process in different frequency radio-frequency power and tissue impedance.
3. circuit according to claim 1, which is characterized in that the radio frequency power controlling circuit receives the microprocessor
The pwm signal of generation, and the pwm signal is turned into potential circuit, the variable DC voltage control letter of output amplitude by PWM
Number, the control signal of the controllable direct current power supply is acted on, the adjustable DC voltage control letter of more powerful amplitude is exported
Number, act on the power input of the rf power amplifier circuit.
4. circuit according to claim 1, which is characterized in that the rf power amplifier circuit includes filter circuit, string
Join resonant power amplifying circuit, impedance matching circuit.
5. circuit according to claim 4, which is characterized in that parameter can lead in the series resonance power amplification circuit
It crosses the frequency selective network to be adjusted, the resonance circuit of respective radio-frequency occurrence frequency occurs；The impedance matching circuit by
The frequency selective network adjusts corresponding frequencies.
6. circuit according to claim 4 or 5, which is characterized in that the series resonance power amplification circuit is gone here and there using LC
Join resonance.
7. circuit according to claim 1, which is characterized in that the radio frequency signal detecting circuitry includes isolation coupling electricity
Road, current rectifying and wave filtering circuit, signal amplification circuit and photoelectric isolating circuit, the radio frequency signal detecting circuitry are penetrated for different frequency
The voltage of frequency ablation signal, current detecting.
8. circuit according to claim 1, which is characterized in that the optional radiofrequency signal reference frequency output of the circuit is
It is one or more between 100KHz-3MHz.
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| CN201820961339.1U CN208989123U (en) | 2018-06-21 | 2018-06-21 | A kind of optional RF ablation signal of frequency occurs and control circuit |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113633370A (en) * | 2021-08-18 | 2021-11-12 | 上海交通大学 | High-frequency composite electric field ablation system |
| CN113693708A (en) * | 2021-07-15 | 2021-11-26 | 上海美杰医疗科技有限公司 | Radio frequency output adjusting method and device of radio frequency ablation equipment and computer storage medium |
| WO2022028337A1 (en) * | 2020-08-07 | 2022-02-10 | 上海微创电生理医疗科技股份有限公司 | Pulse ablation device and system, parameter setting method and readable storage medium |
-
2018
- 2018-06-21 CN CN201820961339.1U patent/CN208989123U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022028337A1 (en) * | 2020-08-07 | 2022-02-10 | 上海微创电生理医疗科技股份有限公司 | Pulse ablation device and system, parameter setting method and readable storage medium |
| CN113693708A (en) * | 2021-07-15 | 2021-11-26 | 上海美杰医疗科技有限公司 | Radio frequency output adjusting method and device of radio frequency ablation equipment and computer storage medium |
| CN113633370A (en) * | 2021-08-18 | 2021-11-12 | 上海交通大学 | High-frequency composite electric field ablation system |
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