High-voltage radio frequency pouring equipment for water-cooled radio frequency electrode

Abstract

The utility model relates to the technical field of high-voltage radio-frequency perfusion equipment of a water-cooled radio-frequency electrode, and the high-voltage radio-frequency perfusion equipment comprises a main control board, the main control board is provided with a peristaltic pump control circuit and a conversion control circuit, and the input end of the conversion control circuit is in communication connection with a radio-frequency host, so that a control signal is transmitted from the radio-frequency host to the conversion control circuit; the output end of the conversion control circuit is electrically connected with the input end of the peristaltic pump control circuit to achieve transmission of control signals, then the control signals are transmitted from the radio frequency host to the peristaltic pump control circuit, and the technical effects that the operation process is simplified, the cooperative work stability of equipment is improved, and control is convenient are achieved.

Description

Technical Field

[0001] The present application relates to the field of neurosurgery medical equipment, and in particular to a high-voltage radiofrequency perfusion device for water-cooled radiofrequency electrodes. Background Art

[0002] With the continuous advancement of medical technology, radiofrequency ablation (RFA) is gaining increasing popularity. The core device in RF ablation is a RF temperature-controlled coagulator, typically consisting of a RF host, RF electrode needles, cables, and a neutral electrode. RF current is generated between the electrodes and used to ablate and coagulate tissues and organs (such as the heart, liver, prostate, gynecological, and ENT). To achieve optimal therapeutic effects, water-cooled RF ablation is currently the most commonly used method.

[0003] Water-cooled radiofrequency ablation actively cools the electrode needle through a continuous flow of water at ambient temperature, preventing overheating of the tissue surrounding the electrode and allowing the RF current to continue, thereby heating more tissue and causing a wider range of thermal damage. The continuous flow of cooling water requires the use of an additional perfusion device with a single or multiple peristaltic pump heads. This device continuously delivers cooling water to the built-in tube in the electrode needle through a cooling water circulation tube to cool the electrode needle and tissue, reducing the surface temperature of the electrode needle tip and surrounding tissue, slowing tissue deterioration, and allowing the RF energy to be more evenly distributed across the target area, resulting in a larger lesion.

[0004] However, since the perfusion device and the radiofrequency host are used and operated separately, the synchronization of the two devices must be ensured during the treatment process, which makes the operation of the water-cooled radiofrequency ablation device relatively cumbersome and places high demands on the operator's proficiency. Utility Model Content

[0005] The present application provides a high-voltage radio frequency perfusion device for water-cooled radio frequency electrodes, which has the advantage of being easy to operate.

[0006] The high-voltage radiofrequency perfusion equipment for water-cooled radiofrequency electrodes provided in this application adopts the following technical solutions:

[0007] A high-voltage radio frequency perfusion device for water-cooled radio frequency electrodes includes a main control board having a peristaltic pump control circuit and a conversion control circuit. The input end of the conversion control circuit is communicatively connected to a radio frequency host to enable transmission of control signals from the radio frequency host to the conversion control circuit.

[0008] The output end of the conversion control circuit is electrically connected to the input end of the peristaltic pump control circuit to realize the transmission of the control signal, thereby realizing the transmission of the control signal from the radio frequency host to the peristaltic pump control circuit.

[0009] By adopting the above technical solution, the operator can control the perfusion equipment through the RF host, and control the operation of the peristaltic pump of the perfusion equipment through the peristaltic pump control circuit, so as to simplify the operation, improve efficiency and reduce the difficulty of operation.

[0010] Preferably, the conversion control circuit includes a USB connector and a USB adapter chip, the USB connector is connected to the radio frequency host; the USB connector is connected to the USB adapter chip, and the USB adapter chip is connected to the peristaltic pump control circuit.

[0011] By adopting the above technical solution, the USB connector can achieve efficient connection between the main control board and the RF host, while the USB adapter chip can improve the compatibility between the RF host and the perfusion equipment, ensuring stable transmission of the control signal.

[0012] Preferably, the conversion control circuit further includes a digital isolator; the digital isolator is provided between the USB adapter chip and the peristaltic pump control circuit, and the USB adapter chip is connected to the peristaltic pump control circuit via the digital isolator.

[0013] By adopting the above technical solution, the digital isolator can achieve isolation between the conversion circuit and the peristaltic pump control circuit to avoid signal interference between the RF host and the perfusion equipment, thereby ensuring stable operation of the RF host and the perfusion equipment.

[0014] Preferably, the USB adapter chip is configured as a USB-to-serial port chip.

[0015] By adopting the above technical solution, the USB-to-serial port chip can realize USB-to-serial port conversion and achieve USB compatibility.

[0016] Preferably, it further comprises a cooling water circulation pipe, the main control board has a refrigeration control circuit, the output end of the refrigeration control circuit is electrically connected to an output connector, and the output connector is provided on the host, and the output connector is externally connected to a cooling device;

[0017] The cooling water circulation pipe is connected to the cooling device to cool the cooling water.

[0018] By adopting the above technical solution, through the refrigeration control circuit and the external cooling device, the cooling water is cooled by the cooling device, thereby ensuring that the cooling water is within the appropriate temperature range, thereby avoiding the temperature increase of the cooling water when used for a long time and resulting in poor cooling effect.

[0019] Preferably, the cooling device has a refrigeration part, and the cooling water circulation pipe is wound around the refrigeration part and is in contact with the refrigeration part.

[0020] By adopting the above technical solution, the contact area between the cooling water circulation pipe and the refrigeration device can be effectively increased, thereby achieving sufficient cooling of the cooling water.

[0021] Preferably, the main control board is further provided with a hydraulic detection circuit, the output end of the hydraulic detection circuit is provided with a signal connector, and the signal connector is externally connected to a hydraulic sensor;

[0022] The cooling water circulation pipe is connected to a pressure detection pipe, and the hydraulic pressure sensor is arranged in the pressure detection pipe for cooling water hydraulic pressure detection.

[0023] By adopting the above technical solution, the external hydraulic sensor and hydraulic detection circuit collect, amplify and convert the cooling water hydraulic pressure to realize cooling water hydraulic pressure detection. At the same time, it can monitor whether the cooling water circulation pipe is damaged to ensure the normal operation of the equipment.

[0024] Preferably, the machine further comprises a casing, wherein a cooling water hanging rack is provided on the casing for hanging a container filled with cooling water.

[0025] By adopting the above technical solution, the cooling water hanging rack provides a hanging point for the cooling water container, which is convenient for operation and use.

[0026] In summary, this application includes at least one of the following beneficial technical effects:

[0027] 1. The peristaltic pump control circuit and conversion control circuit on the main control board enable the RF host to directly control the perfusion equipment, simplifying the operation process and improving operational efficiency;

[0028] 2. The conversion control circuit includes a USB connector and a USB adapter chip, which achieves an efficient connection between the RF host and the perfusion device, improves their compatibility, and ensures stable transmission of control signals;

[0029] 3. Adding a digital isolator to the conversion control circuit avoids signal interference between the RF host and the perfusion equipment, ensuring stable operation of both. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of the main circuit module structure of the main control board in the embodiment of the present application;

[0031] Figure 2 It is a structural schematic diagram of the casing, peristaltic pump head and cooling water suspension bracket in the embodiment of the present application.

[0032] Markings in the accompanying drawings: 1. Main control board; 11. Peristaltic pump control circuit; 12. Conversion control circuit; 121. USB connector; 122. USB adapter chip; 123. Digital isolator; 13. Refrigeration control circuit; 14. Hydraulic detection circuit; 2. Housing; 3. Peristaltic pump head; 4. Cooling water hanger; 5. RF host; 6. Cooling device; 7. Hydraulic sensor. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1-2 This application is described in further detail.

[0034] The embodiment of the present application provides a high-voltage radio frequency perfusion device for water-cooled radio frequency electrodes, referring to Figure 1 and Figure 2 The device consists of a housing 2, a peristaltic pump head 3, a cooling water circulation tube, and a main control board 1. Specifically, one or more peristaltic pump heads 3 can be provided and fixed to the housing 2. The cooling water circulation tube is connected to the peristaltic pump head 3 to ensure the flow of cooling water. The RF electrode needles can be connected to the cooling water circulation tube to cool the electrodes. A cooling water hanger 4 is also provided on the housing 2, providing a convenient hanging point for the cooling water container, facilitating operation and use.

[0035] The main control board 1 is arranged inside the casing 2, and the main control board 1 has a peristaltic pump control circuit 11 and a conversion control circuit 12. The input end of the conversion control circuit 12 is communicatively connected to the RF host 5 to realize the transmission of the control signal from the RF host 5 to the conversion control circuit 12; the output end of the conversion control circuit 12 is electrically connected to the input end of the peristaltic pump control circuit 11 to realize the transmission of the control signal, and then realize the transmission of the control signal from the RF host 5 to the peristaltic pump control circuit 11, thereby achieving the advantage of simplifying the operation process.

[0036] Specifically, refer to Figure 2 The conversion control circuit 12 includes a USB connector 121, a USB adapter chip 122, and a digital isolator 123. The USB connector 121 serves as an input terminal and can be connected to the RF host 5 via a USB data cable (such as a Type-C connector or a Micro USB connector 121).

[0037] The USB adapter chip 122 is connected to the output of the USB connector 121. The USB adapter chip 122 is a USB-to-serial port chip. The USB-to-serial port chip used in this application has a wide range of compatibility advantages. Common USB-to-serial port chips include CH340 and FT232RL, which can effectively convert USB signals into RS232 serial port signals. For example, choosing CH340 as an alternative to the USB-to-serial port chip has lower cost and higher reliability. Choosing FT232RL as the USB-to-serial port chip has higher transmission speed and stronger stability.

[0038] The digital isolator 123 is arranged between the USB adapter chip 122 and the peristaltic pump control circuit 11, and the USB adapter chip 122 is connected to the peristaltic pump control circuit 11 through the digital isolator 123. The digital isolator 123 used in this application can effectively prevent signal interference. Commonly used digital isolators 123 include TI's iso7818, Maxim's MAX22556, and ADI's ADUM1402. These isolators all have high reliability. For example, TI's iso7818 has a higher operating voltage range and lower delay time, which is suitable for application scenarios that require high reliability. Maxim's MAX22556 has higher current isolation capability and is suitable for occasions that require larger current isolation, while ADUM1402 has lower power consumption and supports multi-channel configuration and data rate, providing wider compatibility.

[0039] The setting of the digital isolator 123 can effectively prevent signal interference, ensure stable signal transmission between the RF host 5 and the perfusion device, and ensure the correct transmission of the control signal, thereby improving the overall stability of the device.

[0040] Therefore, USB connector 121 efficiently connects main control board 1 and RF host 5, USB adapter chip 122 performs signal conversion, and digital isolator 123 isolates signals and reduces interference. This overall design enables direct remote control of the perfusion device by the RF host 5, simplifying the operation process, improving work efficiency, and reducing operational difficulty. It also enables effective communication between the RF host 5 and the perfusion device, ensuring the stability of the control signal.

[0041] In order to realize the control of the perfusion device by the radio frequency host 5, the radio frequency host 5 is required to have functions such as peristaltic pump speed or flow rate regulation and to be able to output control signals.

[0042] Furthermore, the main control board 1 is provided with a cooling control circuit 13. The output end of the cooling control circuit 13 is electrically connected to an output connector, which is provided on the housing 2. The output connector is connected to an external cooling device 6 via a plug-in connection. The external cooling device can be a semiconductor cooling device and is controlled by the cooling control circuit 13. The cooling control circuit 13 can also be equipped with a thermostat function to achieve precise temperature control.

[0043] The cooling water circulation pipe is connected to the cooling device 6 to cool the cooling water. Furthermore, the cooling device 6 has a refrigeration unit, which is preferably cylindrical in shape. The cooling water circulation pipe is wound around the refrigeration unit and fits the refrigeration unit to provide a larger contact area to ensure sufficient cooling.

[0044] The main control board 1 also includes a hydraulic pressure detection circuit 14, which includes but is not limited to components such as a voltage amplifier and a filter. The voltage amplifier can be an operational amplifier (such as the LM358), while the filter can be a second-order filter. The output of the hydraulic pressure detection circuit 14 is equipped with a signal connector, which is externally connected to a hydraulic pressure sensor 7. A pressure detection tube is connected to the cooling water circulation pipe, and the hydraulic pressure sensor 7 is located within the pressure detection tube to detect the cooling water pressure. The hydraulic pressure sensor 7 enables real-time monitoring of the cooling water pressure. Furthermore, real-time monitoring of the cooling water pressure by the hydraulic pressure sensor 7 effectively prevents equipment failures caused by hydraulic anomalies, thereby improving equipment safety and reliability.

[0045] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A high-voltage radiofrequency perfusion device for water-cooled radiofrequency electrodes, characterized in that: The main control board (1) comprises a peristaltic pump control circuit (11) and a conversion control circuit (12), wherein an input end of the conversion control circuit (12) is communicatively connected to a radio frequency host (5) to enable transmission of a control signal from the radio frequency host (5) to the conversion control circuit (12); The output end of the conversion control circuit (12) is electrically connected to the input end of the peristaltic pump control circuit (11) to achieve transmission of the control signal, thereby achieving transmission of the control signal from the radio frequency host (5) to the peristaltic pump control circuit (11).

2. The high-voltage radio frequency perfusion equipment for water-cooled radio frequency electrodes according to claim 1, characterized in that: The conversion control circuit (12) comprises a USB connector (121) and a USB adapter chip (122); the USB connector (121) is connected to the radio frequency host (5); the USB connector (121) is connected to the USB adapter chip (122); and the USB adapter chip (122) is connected to the peristaltic pump control circuit (11).

3. The high-voltage radio frequency perfusion equipment for water-cooled radio frequency electrodes according to claim 1, characterized in that: The conversion control circuit (12) further includes a digital isolator (123); the digital isolator (123) is provided between the USB adapter chip (122) and the peristaltic pump control circuit (11), and the USB adapter chip (122) is connected to the peristaltic pump control circuit (11) via the digital isolator (123).

4. The high-voltage radio frequency perfusion equipment for water-cooled radio frequency electrodes according to claim 2, characterized in that: The USB adapter chip (122) is configured as a USB to serial port chip.

5. The high-voltage radio frequency perfusion equipment for water-cooled radio frequency electrodes according to claim 1, characterized in that: It also includes a cooling water circulation pipe, the main control board (1) has a refrigeration control circuit (13), the output end of the refrigeration control circuit (13) is electrically connected to an output connector, and the output connector is provided on the host, and the output connector is externally connected to a cooling device (6); The cooling water circulation pipe is connected to the cooling device (6) to achieve cooling of the cooling water.

6. The high-voltage radio frequency perfusion equipment for water-cooled radio frequency electrodes according to claim 5, characterized in that: The cooling device (6) has a refrigeration part, and the cooling water circulation pipe is wound around the refrigeration part and is in contact with the refrigeration part.

7. The high-voltage radio frequency perfusion equipment for water-cooled radio frequency electrodes according to claim 5, characterized in that: The main control board (1) is further provided with a hydraulic detection circuit (14), and an output end of the hydraulic detection circuit (14) is provided with a signal connector, and the signal connector is externally connected to a hydraulic sensor (7); The cooling water circulation pipe is connected to a pressure detection pipe, and the hydraulic pressure sensor (7) is arranged in the pressure detection pipe for cooling water hydraulic pressure detection.

8. The high-voltage radio frequency perfusion equipment for water-cooled radio frequency electrodes according to claim 5, characterized in that: It also includes a casing (2), on which a cooling water hanging rack (4) is provided for hanging a container filled with cooling water.

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