CN214761433U - Input switching circuit of double-electrode radio frequency therapeutic apparatus - Google Patents
Input switching circuit of double-electrode radio frequency therapeutic apparatus Download PDFInfo
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- CN214761433U CN214761433U CN202120092469.8U CN202120092469U CN214761433U CN 214761433 U CN214761433 U CN 214761433U CN 202120092469 U CN202120092469 U CN 202120092469U CN 214761433 U CN214761433 U CN 214761433U
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Abstract
The utility model belongs to the technical field of medical equipment's technique and specifically relates to an input switching circuit of bipolar electrode radio frequency therapeutic instrument is related to, including central control module, power switching module and switching trigger module, the radio frequency transmitter passes through power switching module and is connected with electrode A or electrode B, power switching module's signal input part and central control module's signal output part are connected, be used for selecting to switch on electrode A or electrode B, switching trigger module has electrode A trigger end and electrode B trigger end, electrode A trigger end and electrode B trigger end all are connected with central control module's input. The switching trigger module outputs a trigger signal of the electrode A or the electrode B, and the power switching module controls the start and stop of the electrode A or the electrode B after receiving the trigger signal. In the treatment process, the effect of outputting radio frequency currents with different powers can be realized without inserting the needle head into the body of the patient for multiple times to replace the electrode, and the pain of the patient is reduced.
Description
Technical Field
The application relates to the technical field of medical equipment, in particular to an input switching circuit of a double-electrode radio frequency therapeutic apparatus.
Background
The radio frequency ablation is a minimally invasive in-situ treatment technology, an electrode needle is directly inserted into tumor tissue by means of guidance of image technologies such as ultrasound or CT (computed tomography), radio frequency current generated by a radio frequency emitter is guided into the tumor tissue through a non-insulated part of the electrode needle, ions in the tissue frequently vibrate along with the conversion of the positive pole and the negative pole of the current, polar biological macromolecules frequently change the polarization direction along with the conversion of the current direction, electric energy is converted into heat energy through the friction effect generated by the two modes, the temperature of the tissue is increased, and therefore tumor cells are subjected to thermal coagulation necrosis and degeneration, and finally fall off through the rejection effect of an organism, and the treatment purpose is achieved. The radio frequency therapeutic apparatus generally comprises a host and a handle, wherein the host is provided with a radio frequency emitter, the handle is provided with a needle head, the needle head is provided with an electrode, and the electrode is connected with the radio frequency emitter through a wire.
The electrodes are the core components of the radio frequency therapeutic apparatus, and as the tumor is irregular, in the treatment process, doctors need to use radio frequency currents with different powers to ablate the tumor according to the shape and the size of the tumor, and different electrodes need to be used for generating currents with different powers, so that different electrodes need to be inserted into the body of a patient in times.
In view of the above-mentioned related art, the inventor believes that different electrodes may need to be inserted into a patient in several times during a treatment process, which increases the pain of the patient.
SUMMERY OF THE UTILITY MODEL
In order to improve the phenomenon that the electrodes are required to be inserted into the body of a patient for a plurality of times in the treatment process, the application provides an input switching circuit of a double-electrode radio frequency therapeutic apparatus.
The application provides a bipolar electrode radio frequency therapeutic instrument's input switching circuit adopts following technical scheme:
an input switching circuit of a double-electrode radio frequency therapeutic apparatus is applied to the radio frequency therapeutic apparatus with an electrode A and an electrode B, wherein the electrode A and the electrode B are arranged on the same needle head and comprise a central control module, a power switching module and a switching trigger module, and a radio frequency transmitter selectively conducts the electrode A or the electrode B through the power switching module;
the signal input end of the power switching module is connected with the signal output end of the central control module and is used for conducting the electrode A or the electrode B;
the switching trigger module is provided with an electrode A trigger end and an electrode B trigger end, and the electrode A trigger end and the electrode B trigger end are both connected with the input end of the central control module.
By adopting the technical scheme, when the radio frequency therapeutic apparatus is used for ablating tumors, the electrode on the needle head needs to be inserted into the tumors in the body of a patient, and radio frequency current generated by the radio frequency transmitter is guided into tumor tissues through the electrode to ablate the tumors. Because most tumors are irregular, different radio-frequency currents are needed for ablation, an electrode A and an electrode B are arranged on the needle head, the switching trigger module outputs a trigger signal of the electrode A or the electrode B, and the power switching module controls the start and stop of the electrode A or the electrode B after receiving the trigger signal. In the treatment process, the effect of outputting different radio-frequency currents can be realized without inserting the needle head into the body of the patient for multiple times to replace the electrode, and the pain of the patient is reduced.
Optionally, the power switching module includes:
an NPN triode Q1, the base electrode of which is connected with the output end of the central control module, and the emitter electrode of which is grounded;
the coil of the relay KT1 is connected in series between the collector of the NPN triode Q1 and the power supply, the movable contacts of the relay KT1 are connected with the radio frequency transmitter, two static contacts are respectively connected with the electrode A and the electrode B, and the movable contacts are connected with the static contacts connected with the electrode B in a natural state.
By adopting the technical scheme, when the switching trigger module outputs the electrode A trigger signal, the central control module outputs a high level, the PNP triode Q1 is conducted, the relay KT1 is electrified, the movable contact is connected with the fixed contact connected with the electrode A, and radio-frequency current generated by the radio-frequency transmitter is introduced into a tumor through the electrode A for ablation; when the switching trigger module outputs a trigger signal of the electrode B, the central control module outputs a low level, the PNP triode Q1 is cut off, the relay KT1 is powered off, the movable contact is connected with the fixed contact connected with the electrode B, and radio-frequency current generated by the radio-frequency transmitter is guided into a tumor through the electrode B to be ablated.
Optionally, the trigger end of the electrode a is connected with an electrode a protection module, and the trigger end of the electrode B is connected with an electrode B protection module.
By adopting the technical scheme, the electrode A protection module and the electrode B protection module can reduce the phenomenon of short circuit of a power supply when the trigger signal is changed.
Optionally, the electrode a protection module includes a resistor R6 and a resistor R9 connected in series, a connection point of the resistor R6 and the resistor R9 is connected to the electrode a trigger terminal, the other end of the resistor R6 is connected to the central control module, and the other end of the resistor R9 is grounded.
By adopting the technical scheme, the resistor R6 and the resistor R9 have the function of voltage division after being connected in series, and the phenomenon that the power supply is short-circuited when the trigger signal is changed can be reduced.
Optionally, the electrode B protection module includes a resistor R10 and a resistor R11 connected in series, a connection point of the resistor R10 and the resistor R11 is connected to the electrode B trigger terminal, the other end of the resistor R10 is connected to the central control module, and the other end of the resistor R11 is grounded.
By adopting the technical scheme, the resistor R10 and the resistor R11 have the function of voltage division after being connected in series, and the phenomenon that the power supply is short-circuited when the trigger signal is changed can be reduced.
Optionally, the input switching circuit further includes a power indication module, and an input end of the power indication module is connected to an output end of the central control module, and is configured to display working states of the electrode a and the electrode B.
By adopting the technical scheme, the power indication module can display the working state of the electrode A or the electrode B, so that a doctor can observe the working state of the electrode conveniently.
Optionally, the power indication module includes an electrode a indication submodule and an electrode B indication submodule, the electrode a indication submodule includes an NPN triode Q3 and an indicator light LED3, and the electrode B indication submodule includes an NPN triode Q2 and an indicator light LED 2;
the base electrode of the NPN triode Q3 is connected with the output end of the central control module, the collector electrode of the NPN triode Q3 is connected with the negative electrode of the indicator light LED3, the indicator light LED3 is connected with the power supply, and the emitting electrode of the indicator light LED is grounded;
the base electrode of the NPN triode Q2 is connected with the output end of the central control module, the collector electrode of the NPN triode Q2 is connected with the negative electrode of the indicator light LED2, the indicator light LED2 is connected with the power supply, and the emitting electrode of the indicator light LED is grounded.
By adopting the technical scheme, when the electrode A works, the NPN triode Q3 is conducted, and the indicator light LED3 emits light; when the electrode B works, the NPN triode Q2 is conducted, and the indicator light LED2 emits light. Different electrode work corresponds different pilot lamps and gives out light, can be convenient for the staff to observe the operating condition of electrode.
Optionally, the input switching circuit further comprises a power indication module, and an input end of the power indication module is connected with a power switch of the therapeutic apparatus, and is used for displaying the working state of the therapeutic apparatus.
By adopting the technical scheme, the power supply indicating module starts to work after the radio frequency therapeutic apparatus is electrified, and a doctor is reminded that the apparatus can be normally used.
Optionally, the power indication module includes an indicator LED1, the anode of the indicator LED1 is connected to the power supply, and the cathode is grounded.
Through adopting above-mentioned technical scheme, pilot lamp LED1 can give out light when the power is switched on, suggestion doctor's therapeutic instrument can normal use.
In summary, the present application includes at least one of the following beneficial technical effects:
the power switching module receives the trigger signal and then controls the working states of the electrode A and the electrode B to output radio frequency currents with different powers, the effect of outputting the radio frequency currents with different powers can be achieved without replacing the electrodes in the treatment process, and the pain of a patient is reduced.
Drawings
FIG. 1 is a schematic view of the external appearance of the apparatus according to the embodiment of the present application;
FIG. 2 is a schematic block diagram of the apparatus according to the embodiment of the present application;
FIG. 3 is a circuit diagram of a central control module in an embodiment of the present application;
FIG. 4 is a circuit diagram of a power switching module in an embodiment of the present application;
FIG. 5 is a circuit diagram of a handoff trigger module in an embodiment of the present application;
FIG. 6 is a circuit diagram of a power indication module in an embodiment of the present application;
fig. 7 is a circuit diagram of a power indication module in an embodiment of the present application.
Description of reference numerals: 100. a handle; 110. a needle head; 120. a switch button; 130. an electric wire; 200. a host; 210. a display screen; 300. a central control module; 400. a power switching module; 500. a switching trigger module; 510. an electrode A trigger end; 511. an electrode A protection module; 520. an electrode B trigger end; 521. an electrode B protection module; 600. a radio frequency transmitter; 700. a power indication module; 710. electrode a indicates a submodule; 720. electrode B indicates a submodule; 800. and a power supply indicating module.
Detailed Description
The present application is described in further detail below with reference to figures 1-7.
Referring to fig. 1, the rf therapeutic apparatus includes a main body 200 and a handle 100, and a display screen 210 is disposed on the main body 200 for a doctor to observe various data of the therapeutic apparatus. The radio frequency transmitter 600 is arranged in the main frame 200, the needle 110 is arranged on the handle 100, the electrode is arranged on the needle 110, and the electrode is connected with the radio frequency transmitter 600 through the wire 130. In order to reduce the number of times that the patient is inserted into the electrode during the treatment, the electrode A and the electrode B are arranged on the same needle 110, and the electrode A and the electrode B can lead out radio frequency currents with different magnitudes. The surface of the handle 100 is provided with a switch button 120 for controlling the working state of the electrode A and the electrode B.
In order to facilitate electrode switching and improve the phenomenon of increasing pain of a patient caused by inserting the electrodes into the body of the patient for many times, the embodiment of the application discloses an input switching circuit of a double-electrode radio frequency therapeutic apparatus.
Referring to fig. 2, the input switching circuit includes a central control module 300, a power switching module 400 and a switching trigger module 500, the power switching module 400 is connected to an electrode a and an electrode B, the switching trigger module 500 outputs an electrode trigger signal, the central control module 300 receives the trigger signal and then controls the power switching module 400 to operate, so that the power switching module 400 selectively conducts the electrode a or the electrode B, the rf transmitter 600 is connected to the power switching module 400, and the rf current is introduced into a diseased region through the electrode a or the electrode B.
Referring to fig. 3, the central control module 300 in the embodiment of the present application is preferably an STM8S003F3P6 microcontroller, and has 20 pins, and the input terminal of the power switching module 400 is connected to pin 1 of the central control module 300.
Referring to fig. 4, the power switching module 400 includes an NPN transistor Q1 and a relay KT1, the relay KT1 preferably being an HF115F-005-1ZS3 relay in the present embodiment. The base of the NPN triode Q1 is connected with the pin 1 of the central control module 300 after being connected with the resistor R5 in series, the collector is connected with the coil of the relay KT1 in series and then is connected with the power supply, and the emitter is grounded. Relay KT1 has a movable contact and two stationary contacts, one end of the movable contact is connected with radio frequency emitter 600, the two stationary contacts are connected with electrode a and electrode B respectively, the movable contact is connected with the stationary contact of electrode B in natural state, and is connected with the stationary contact of electrode a when jumping occurs.
Referring to fig. 5, the toggle activation module 500 includes an electrode a toggle end 510 and an electrode B toggle end 520, both of which are connected to the toggle button 120 on the handle 100.
An electrode a protection module 511 is connected to the electrode a trigger end 510. The electrode a protection module 511 comprises a resistor R10 and a resistor R11 connected in series, the electrode a trigger terminal 510 is connected at the connection point of the resistor R10 and the resistor R11, the pin 14 is connected at the other end of the resistor R10, and the ground is connected at the other end of the resistor R11.
An electrode B protection module 521 is connected to the trigger end 520 of the electrode B. The electrode B protection module 521 includes a resistor R6 and a resistor R9 connected in series, the electrode B trigger terminal 520 is connected at the connection point of the resistor R6 and the resistor R9, the pin 13 is connected at the other end of the resistor R6, and the ground is connected at the other end of the resistor R9.
Referring to fig. 6, a power indication module 700 is also connected to the central control module 300, and the power indication module 700 includes an electrode a indication submodule 710 and an electrode B indication submodule 720.
The electrode A indicating submodule 710 comprises an NPN triode Q3 and an indicator light LED3, the NPN triode Q3 is connected with a resistor R14 in series and then connected with a pin 17 of the central processing module, a collector electrode is connected with a resistor R7 in series and then connected with a negative electrode of the indicator light LED3, an anode of the indicator light LED3 is connected with a power supply, and an emitter electrode is grounded.
The electrode B indicating submodule 720 comprises an NPN triode Q2 and an indicator light LED2, the NPN triode Q2 is connected with a resistor R15 in series and then connected with a pin 16 of the central processing module, a collector electrode is connected with a resistor R8 in series and then connected with a negative electrode of the indicator light LED2, an anode of the indicator light LED2 is connected with a power supply, and an emitter electrode is grounded.
Referring to fig. 7, the therapeutic apparatus is further provided with a power indication module 800, the power indication module 800 comprises an indicator light LED1, the anode of the LED1 is connected with a power supply, the cathode of the LED1 is connected with a resistor R3 in series and then grounded, and the power supply of the radio frequency therapeutic apparatus is connected and then the indicator light LED1 emits light to prompt a doctor that the radio frequency therapeutic apparatus starts to work.
The implementation principle of the input switching circuit of the double-electrode radio frequency therapeutic apparatus in the embodiment of the application is as follows:
when a doctor uses the radio frequency therapeutic apparatus to melt tumors in a patient body, the needle 110 is firstly inserted into the patient body, the electrode A and the electrode B are positioned at the diseased position, the radio frequency therapeutic apparatus is started, and the power indicator lamp emits light to remind the doctor that the apparatus starts to work normally at the moment.
The movable contact of relay KT1 in power switching module 400 is connected with the stationary contact that electrode B is connected under natural state, and radio frequency current melts the tumour through electrode B this moment, and pilot lamp LED2 is luminous simultaneously, and the suggestion doctor is in operating condition electrode B this moment.
When the electrode A is required to ablate the tumor, the switch button 120 is pressed, the trigger end 510 of the electrode A is triggered, a trigger signal is input to the pin 14 of the central control module 300, the pin 1 outputs a high level, the NPN triode Q1 is conducted, the relay KT1 is powered on, the movable contact of the relay KT1 is communicated with the static contact connected with the electrode A, at the moment, the radio frequency current ablates the tumor through the electrode A, meanwhile, the pin 17 outputs a high level, the indicator light LED3 emits light, and a doctor is prompted to be in a working state of the electrode A at the moment.
When the electrode B is needed to ablate the tumor again, the switch button 120 is pressed, the trigger end 520 of the electrode B is triggered, a trigger signal is input to the pin 13 of the central control module 300, the pin 1 outputs a low level, the NPN triode Q1 is cut off, the movable contact of the relay KT1 is communicated with the fixed contact connected with the electrode B, at the moment, the radio frequency current ablates the tumor through the electrode B, meanwhile, the pin 16 outputs a high level, and the indicator light LED2 emits light to prompt a doctor that the electrode B is in a working state at the moment.
When the output radio-frequency current power needs to be changed in the treatment process, only the switching button 120 needs to be pressed to change the trigger signal, and the needle 110 does not need to be inserted into the body of the patient for multiple times to replace the electrode, so that the pain of the patient is relieved.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (9)
1. An input switching circuit of a double-electrode radio frequency therapeutic apparatus is applied to the radio frequency therapeutic apparatus with an electrode A and an electrode B, wherein the electrode A and the electrode B are arranged on the same needle head (110), and is characterized by comprising a central control module (300), a power switching module (400) and a switching trigger module (500), and a radio frequency transmitter (600) selectively conducts the electrode A or the electrode B through the power switching module (400);
the signal input end of the power switching module (400) is connected with the signal output end of the central control module (300) and is used for conducting the electrode A or the electrode B;
the switching trigger module (500) is provided with an electrode A trigger end (510) and an electrode B trigger end (520), and the electrode A trigger end (510) and the electrode B trigger end (520) are both connected with the input end of the central control module (300).
2. The input switching circuit of a dual-electrode radio frequency therapeutic apparatus as set forth in claim 1, wherein said power switching module (400) comprises:
an NPN triode Q1, the base electrode of which is connected with the output end of the central control module (300), and the emitter electrode of which is grounded;
the coil of the relay KT1 is connected in series between the collector of the NPN triode Q1 and the power supply, the movable contact of the relay KT1 is connected with the radio frequency transmitter (600), two static contacts are respectively connected with the electrode A and the electrode B, and the movable contact is connected with the static contact connected with the electrode B in a natural state.
3. The input switching circuit of a two-electrode radio frequency therapeutic apparatus according to claim 2, wherein said electrode A triggering end (510) is connected with an electrode A protection module (511), and said electrode B triggering end (520) is connected with an electrode B protection module (521).
4. The input switching circuit of a two-electrode radio frequency therapeutic apparatus as claimed in claim 3, wherein said electrode A protection module (511) comprises a resistor R6 and a resistor R9 connected in series, the connection point of said resistor R6 and said resistor R9 is connected to the electrode A trigger terminal (510), the other end of said resistor R6 is connected to the central control module (300), and the other end of said resistor R9 is grounded.
5. The input switching circuit of a two-electrode radio frequency therapeutic apparatus as claimed in claim 3, wherein said electrode B protection module (521) comprises a resistor R10 and a resistor R11 connected in series, the connection point of said resistor R10 and said resistor R11 is connected with the electrode B trigger terminal (520), the other end of said resistor R10 is connected with the central control module (300), and the other end of said resistor R11 is grounded.
6. The input switching circuit of a two-electrode radio frequency therapeutic apparatus according to claim 5, further comprising a power indication module (700), wherein an input terminal of the power indication module (700) is connected to an output terminal of the central control module (300) for displaying the working states of the electrode A and the electrode B.
7. The input switching circuit of a two-electrode radio frequency therapeutic apparatus as claimed in claim 6, wherein the power indication module (700) comprises an electrode A indicating submodule (710) and an electrode B indicating submodule (720), the electrode A indicating submodule (710) comprises an NPN triode Q3 and an indicator light LED3, and the electrode B indicating submodule (720) comprises an NPN triode Q2 and an indicator light LED 2;
the base electrode of the NPN triode Q3 is connected with the output end of the central control module (300), the collector electrode of the NPN triode Q3 is connected with the negative electrode of the indicator light LED3, the indicator light LED3 is connected with the power supply, and the emitting electrode of the indicator light LED is grounded;
the base electrode of the NPN triode Q2 is connected with the output end of the central control module (300), the collector electrode of the NPN triode Q2 is connected with the negative electrode of the indicator light LED2, the indicator light LED2 is connected with the power supply, and the emitting electrode of the indicator light LED2 is grounded.
8. The input switching circuit of a dual-electrode radio frequency therapeutic apparatus according to claim 7, further comprising a power indication module (800), wherein an input terminal of the power indication module (800) is connected to a power switch of the therapeutic apparatus for displaying the operating state of the therapeutic apparatus.
9. The input switching circuit of a two-electrode radio frequency therapeutic apparatus according to claim 8, wherein said power indicator module (800) comprises an indicator light LED1, the anode of said indicator light LED1 is connected to the power source, and the cathode is grounded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120092469.8U CN214761433U (en) | 2021-01-13 | 2021-01-13 | Input switching circuit of double-electrode radio frequency therapeutic apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120092469.8U CN214761433U (en) | 2021-01-13 | 2021-01-13 | Input switching circuit of double-electrode radio frequency therapeutic apparatus |
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| Publication Number | Publication Date |
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| CN214761433U true CN214761433U (en) | 2021-11-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120092469.8U Active CN214761433U (en) | 2021-01-13 | 2021-01-13 | Input switching circuit of double-electrode radio frequency therapeutic apparatus |
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| CN (1) | CN214761433U (en) |
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- 2021-01-13 CN CN202120092469.8U patent/CN214761433U/en active Active
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