Control system of steam ablation device

Abstract

The invention discloses a steam ablation device control system, which comprises a main system board, a radio frequency circuit board and a lens image decoding board, and is characterized in that the main system board comprises a DC power supply module, a DC2DC module, an injection pump driving module, a peristaltic pump driving module, a steam needle motion driving module, a temperature acquisition and conversion module, a com / 485 conversion module and an MCU main control module; the radio frequency circuit board comprises a voltage regulating module and a radio frequency power supply module, the lens image decoding board comprises a lens image decoding module, various treatment modes such as single treatment with set time length, continuous treatment without time length limitation and treatment at different temperatures can be realized, the treatment of focus tissues with different parts and different characteristics can be realized, and the application range is wide. The time can be adjusted to realize one-time treatment of focuses with different volumes without repeated pulse-type treatment, the universality is good, the use cost of the equipment is reduced, and in addition, the function that a host system interface and a lens image are on the same screen can be realized.

Description

Technical Field

[0001] The present invention relates to the technical field of steam ablation devices, and more particularly to a control system of a steam ablation device. Background Art

[0002] Steam ablation is a surgical treatment method that injects high-temperature sterile water vapor into the tissue of the lesion area through a steam transmission needle, causing the lesion tissue to gradually lose its activity and then undergo apoptosis and necrosis; at the same time, non-lesion tissue is cooled with water to prevent burns. In 1 to 3 months after the operation, the necrotic lesion tissue will gradually shrink or fall off and be excreted with metabolism, thus achieving a surgical treatment method.

[0003] During operation, steam ablation generally requires the use of steam ablation treatment equipment, wherein the existing steam ablation treatment equipment generally includes a main unit and an ablation needle handle, and the ablation needle handle is provided with a steam ablation needle, a steam generating device, an ablation needle moving device and other components, but the existing steam ablation treatment equipment has the following shortcomings:

[0004] 1. Existing steam ablation treatment equipment uses multiple pulse steam treatments. The steam is turned on for a fixed time, which causes temperature jitter and steam pressure changes in a short period of time, thus affecting the treatment effect. Due to unstable temperature, only a fixed time can be set as a treatment. However, different volumes of lesions require different time, so they need to be treated multiple times. There needs to be a period of time between each treatment, which is inconvenient to operate.

[0005] 2. Different organ tissues require different steam ablation devices, that is, one device can only be used for one type of tissue. Different tissues require corresponding specific devices, which cannot be used universally and have high cost of use.

[0006] 3. The endoscopic image and the main system interface of the existing steam ablation treatment equipment are displayed on different screens, which is not conducive to the operator's viewing. Summary of the invention

[0007] The purpose of the present invention is to overcome the above-mentioned defects in the prior art and provide a control system for a steam ablation device.

[0008] To achieve the above-mentioned object, the present invention provides a control system of a steam ablation device, comprising a main system board, a radio frequency circuit board and a lens image decoding board, wherein the main system board, the radio frequency circuit board and the lens image decoding board are respectively installed in a main unit of the steam ablation device;

[0009] The main system board includes:

[0010] A DC power supply module, which is electrically connected to the DC2DC module and the voltage regulating module of the RF circuit board, respectively, and is used to convert alternating current into direct current and transmit it to the DC2DC module and the voltage regulating module of the RF circuit board;

[0011] The DC2DC module is electrically connected to the MCU main control module and is used to supply power to each module on the main system board;

[0012] The syringe pump driving module is electrically connected to the MCU main control module and the syringe pump motor installed in the host, and is used to drive the syringe pump motor to work, so as to push the syringe installed on the host to deliver sterile water to the steam generating device of the ablation needle handle at a set flow rate;

[0013] A peristaltic pump driving module, which is electrically connected to the MCU main control module and the peristaltic pump installed on the host, and is used to drive the peristaltic pump motor to extract the saline in the saline bag and deliver it to the flushing and drainage pipe of the ablation needle handle;

[0014] The steam needle motion driving module is electrically connected to the MCU main control module and the motor of the steam needle motion device installed in the ablation needle handle, and is used to drive the motor of the steam needle motion device to work, so as to drive the needle tube of the steam ablation needle to move;

[0015] The temperature acquisition conversion module is electrically connected to the MCU main control module and the temperature sensors at the steam outlet and the inner wall of the heating tube of the steam generating device installed on the ablation needle handle, and is used to convert the temperature data used by the temperature sensors at different positions and transmit them to the MCU main control module;

[0016] com / 485 conversion module, which is electrically connected to the MCU main control module and the touch display screen respectively, and is used for communication data conversion between the MCU main control module and the touch display screen;

[0017] The MCU main control module is used to obtain the parameters set by the touch screen, control the injection pump drive module, peristaltic pump drive module, steam needle motion drive module, and the voltage regulating module and RF power supply module of the RF circuit board, and dynamically calculate the required energy according to the real-time temperature data of the temperature sensors at different positions transmitted by the temperature acquisition and conversion module, adjust and control the RF power supply module to output the corresponding power to load it onto the heating coil of the steam generating device, generate steam at the set temperature, and keep the steam stable at the set temperature;

[0018] The radio frequency circuit board comprises:

[0019] A voltage regulating module, which is electrically connected to the MCU main control module and the RF power module respectively, and is used to regulate the direct current transmitted by the DC power module and then supply power to the RF power module;

[0020] A radio frequency power module, which is electrically connected to the heating coil of the steam generating device in the ablation needle handle, and is used to provide the heating coil with a high frequency alternating current of 450 to 500 kHz, so that the steam generating device can vaporize the sterile water flowing through the steam generating device into steam;

[0021] The lens image decoding board comprises:

[0022] The lens image decoding module is electrically connected to the touch display screen and the lens in the ablation needle handle respectively, and is used to decode the image data collected by the lens and transmit it to the touch display screen, so that the touch display screen can display the steam ablation system information and the lens image at the same time.

[0023] Preferably, in the above technical solution, the output power of the DC power supply module is greater than 300w.

[0024] Preferably, in the above technical solution, the DC2DC module is configured as a DC2DC module with an isolation circuit which can improve the ripple interference of the entire system.

[0025] Preferably, in the above technical solution, the MCU main control module adopts a steady-state energy method to adjust the power output by the RF power module.

[0026] Preferably, in the above technical scheme, the MCU main control module is also connected to the starting position sensor, push head position sensor and end position sensor on the injection pump in the host, and is used to calculate the remaining water volume in the syringe according to the data collected by the starting position sensor, push head position sensor and end position sensor, and to determine whether the syringe has been installed on the injection pump and whether the sterile water in the syringe has been injected.

[0027] Preferably, in the above technical scheme, when the remaining water amount in the syringe reaches a preset value, the touch display screen is controlled to issue a prompt that the remaining liquid in the syringe is insufficient; when it is determined that the sterile water in the syringe has been injected, the syringe pump drive module is immediately controlled to stop the syringe pump motor and the radio frequency power supply module from outputting high-frequency alternating current, and the touch display screen is controlled to issue a syringe refill prompt.

[0028] Preferably, in the above technical solution, the MCU main control module is also electrically connected to the operation button module on the ablation needle handle.

[0029] Compared with the prior art, the present invention has the following beneficial effects:

[0030] 1. The present invention can perform comprehensive energy calculation according to the feedback result of the temperature sensor, dynamically adjust the voltage value of the radio frequency circuit to adjust the radio frequency power supply power, and realize dynamic heating energy to stabilize the temperature of the steam ablation needle, so as to realize a variety of treatment methods such as single treatment with a set duration, continuous treatment with no duration limit, treatment at different temperatures, etc., so that successful treatment effects can be achieved in response to different lesion characteristics. The time can be adjusted to achieve a single treatment of lesions of different volumes without multiple pulse treatments, avoiding the problem of temperature jitter and steam pressure changes in a short period of time caused by traditional multiple pulse steam treatments (steam is turned on for a fixed time), thereby affecting the treatment effect.

[0031] 2. The present invention enables one steam ablation device to be compatible with the treatment of lesion tissues in different parts, has good versatility, and reduces the cost of using the equipment.

[0032] 3. The present invention can integrate the steam ablation system information and control with the lens image during treatment and display them on the same screen, which greatly facilitates the operator to view. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0034] Figure 1 is a circuit block diagram of a control system of a steam ablation device provided in an embodiment of the present invention;

[0035] Figure 2 It is a schematic structural diagram of the entire steam ablation device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] like Figure 2 As shown, the steam ablation device may include a host 100 , an ablation needle handle 200 and a touch display screen 300 , the ablation needle handle 200 and the touch display screen 300 are respectively connected to the host 100 , and the injector 400 is installed in the host 100 .

[0038] An embodiment of the present invention provides a control system for a steam ablation device, including a main system board, a radio frequency circuit board and a lens image decoding board. The main system board, the radio frequency circuit board and the lens image decoding board are respectively installed in a host 100 of the steam ablation device. The various components of this embodiment are described in detail below in conjunction with the accompanying drawings.

[0039] like Figure 1 As shown, the main system board may include a DC power supply module 1, a DC2DC module 2, an injection pump drive module 3, a peristaltic pump drive module 4, a steam needle movement drive module 5, a temperature acquisition conversion module 6, a com / 485 conversion module 7 and an MCU main control module 8, the RF circuit board may include a voltage regulating module 9 and a RF power supply module 10, and the lens image decoding board may include a lens image decoding module 11.

[0040] The DC power module 1 is electrically connected to the DC2DC module 2 and the voltage regulator module 9 of the RF circuit board, respectively, and is used to convert AC power into DC power and transmit it to the DC2DC module 2 and the voltage regulator module 9 of the RF circuit board. The output power of the DC power module 1 can be greater than 300w.

[0041] The DC2DC module 2 is electrically connected to the MCU main control module 8, and is used to supply power to each module on the main system board. Preferably, the DC2DC module 2 is configured as a DC2DC module with an isolation circuit that can improve the ripple interference of the entire system.

[0042] The injection pump driving module 3 is electrically connected to the MCU main control module 8 and the injection pump motor installed in the host 100, and is used to drive the injection pump motor to drive the syringe installed on the host 100 to deliver sterile water to the steam generating device of the ablation needle handle 200 at a set flow rate.

[0043] The peristaltic pump driving module 4 is electrically connected to the MCU main control module 8 and the peristaltic pump installed on the host 100 , and is used to drive the peristaltic pump motor to extract the physiological saline in the saline bag and deliver it to the flushing and drainage pipe of the ablation needle handle 200 .

[0044] The steam needle motion driving module 5 is electrically connected to the MCU main control module 8 and the motor of the steam needle motion device installed in the ablation needle handle 200, and is used to drive the motor of the steam needle motion device to move the needle tube of the steam ablation needle.

[0045] The temperature acquisition conversion module 6 is electrically connected to the MCU main control module 8 and the temperature sensors installed at the steam outlet of the heating tube and the inner wall of the heating tube of the steam generating device of the ablation needle handle 200, respectively, and is used to convert the temperature data used by the temperature sensors at different positions and transmit them to the MCU main control module 8. Among them, the temperature acquisition conversion module can use at least DC12V to improve the anti-interference performance of long cables.

[0046] The com / 485 conversion module 7 is electrically connected to the MCU main control module 8 and the touch display screen respectively, and is used for communication data conversion between the MCU main control module and the touch display screen.

[0047] The MCU main control module 8 is used to obtain the parameters set on the touch display screen, control the injection pump drive module 3, the peristaltic pump drive module 4, the steam needle movement drive module 5, the voltage regulating module 9 of the radio frequency circuit board, and the radio frequency power supply module 10 to work, and dynamically calculate the required energy according to the real-time temperature data of the temperature sensors at different positions transmitted by the temperature acquisition and conversion module 6, to adjust and control the radio frequency power supply module to output the corresponding power to load it onto the heating coil of the steam generating device, generate steam at the set temperature, and keep the steam stable at the set temperature.

[0048] Preferably, the MCU main control module 8 can use a steady-state energy method to adjust the power output by the RF power module 10 .

[0049] The voltage regulating module 9 is electrically connected to the MCU main control module 8 and the RF power module 10 respectively, and is used to regulate the voltage of the direct current transmitted from the DC power module 1 to supply power to the RF power module 10 .

[0050] The radio frequency power module 10 is electrically connected to the heating coil of the steam generating device in the ablation needle handle 200 to provide the heating coil with high frequency alternating current of 450-500 KHz, so that the steam generating device can vaporize the sterile water flowing through it into steam.

[0051] The lens image decoding module 11 is electrically connected to the touch display screen and the lens in the ablation needle handle 200 respectively, and is used to decode the image data collected by the lens and transmit it to the touch display screen, so that the touch display screen can display the steam ablation system information and the lens image at the same time.

[0052] As a preferred embodiment, the MCU main control module 8 can also be connected to the starting position sensor, push head position sensor and end position sensor on the injection pump in the host 100 to calculate the remaining water volume in the syringe based on the data collected by the starting position sensor, push head position sensor and end position sensor, and to determine whether the syringe has been installed on the injection pump and whether the sterile water in the syringe has been injected.

[0053] When the remaining water volume in the syringe reaches the preset value, the touch display screen is controlled to issue a prompt that the remaining liquid in the syringe is insufficient; when it is determined that the sterile water in the syringe has been injected, the syringe pump drive module 3 is immediately used to control the syringe pump motor to stop working and the radio frequency power supply module 10 to stop outputting high-frequency alternating current, and the touch display screen is controlled to issue a syringe refill prompt.

[0054] In addition, the MCU main control module 8 can also be electrically connected to the operation button module on the ablation needle handle 200 .

[0055] The operating buttons of the handle may include a steam button, a flush button, a needle removal button, a needle retracting button, and a drain switch, wherein the steam button can be used to turn on or stop steam output, the flush button can be used to turn on or stop saline flushing, the needle removal button can be long pressed to remove the needle at a speed and length set by the system, and short pressed to remove the needle at a needle removal step set by the system, the needle retracting button can be long pressed to directly retract the needle into the ablation needle tube, and short pressed to retract the needle according to the system's needle removal step length, the needle removal button and the needle retracting button can achieve precise control of the needle removal position.

[0056] When working, the MCU main control module 8 can communicate with the touch screen through the serial port to realize the control and display of the touch screen, obtain the buttons, switch status, and temperature through IO, and control the voltage regulating module, radio frequency circuit, and motor drive, and perform temperature-controlled steam treatment control according to real-time temperature data, thereby ensuring and improving the success rate of treatment.

[0057] The touch display screen 300 may include a touch screen, a touch screen control panel, USB and COM / 485 communication interfaces, wherein the touch screen may be larger than 15”, and the touch screen control panel includes a circuit board, an operating software system and steam ablation control software.

[0058] In this embodiment, the steam ablation control software realizes that the display window is divided into two areas on the left and right. One area is the system interface area, which displays the parameters that can be set and the system status. The displayed parameters include syringe specifications, sterile water residue, steam speed, saline bag specifications, saline residue, flushing speed, needle withdrawal length, needle withdrawal speed, needle tip position, steam temperature and operation buttons, etc. The other area is the image area, which is used to display the camera lens image. The system interface area obtains system status parameters and sends set parameters and operation instructions through the COM or / 485 communication data port, thereby synchronizing with the MCU. The image area communicates with the decoder board through the USB port to obtain the lens image and display it in the image area and send image control instructions. The screen content will be automatically recorded and saved during the entire treatment process.

[0059] The above embodiments are preferred implementation modes of the present invention, but the implementation modes of the present invention are not limited to the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principles of the present invention should be equivalent replacement methods and are included in the protection scope of the present invention.

Claims

1. A control system for a steam ablation device, characterized in that: It includes a main system board, a radio frequency circuit board and a lens image decoding board, and the main system board, the radio frequency circuit board and the lens image decoding board are respectively installed in the main unit of the steam ablation device; The main system board includes: A DC power supply module, which is electrically connected to the DC2DC module and the voltage regulating module of the RF circuit board, respectively, and is used to convert alternating current into direct current and transmit it to the DC2DC module and the voltage regulating module of the RF circuit board; The DC2DC module is electrically connected to the MCU main control module and is used to supply power to each module on the main system board; The syringe pump driving module is electrically connected to the MCU main control module and the syringe pump motor installed in the host, and is used to drive the syringe pump motor to work, so as to push the syringe installed on the host to deliver sterile water to the steam generating device of the ablation needle handle at a set flow rate; A peristaltic pump driving module, which is electrically connected to the MCU main control module and the peristaltic pump installed on the host, and is used to drive the peristaltic pump motor to extract the saline in the saline bag and deliver it to the flushing and drainage pipe of the ablation needle handle; The steam needle motion driving module is electrically connected to the MCU main control module and the motor of the steam needle motion device installed in the ablation needle handle, and is used to drive the motor of the steam needle motion device to work, so as to drive the needle tube of the steam ablation needle to move; The temperature acquisition conversion module is electrically connected to the MCU main control module and the temperature sensors at the steam outlet and the inner wall of the heating tube of the steam generating device installed on the ablation needle handle, and is used to convert the temperature data used by the temperature sensors at different positions and transmit them to the MCU main control module; com / 485 conversion module, which is electrically connected to the MCU main control module and the touch display screen respectively, and is used for communication data conversion between the MCU main control module and the touch display screen; The MCU main control module is used to obtain the parameters set by the touch screen, control the injection pump drive module, peristaltic pump drive module, steam needle motion drive module, and the voltage regulating module and RF power supply module of the RF circuit board, and dynamically calculate the required energy according to the real-time temperature data of the temperature sensors at different positions transmitted by the temperature acquisition and conversion module, adjust and control the RF power supply module to output the corresponding power to load it onto the heating coil of the steam generating device, generate steam at the set temperature, and keep the steam stable at the set temperature; The radio frequency circuit board comprises: A voltage regulating module, which is electrically connected to the MCU main control module and the RF power module respectively, and is used to regulate the direct current transmitted by the DC power module and then supply power to the RF power module; A radio frequency power module, which is electrically connected to the heating coil of the steam generating device in the ablation needle handle, and is used to provide the heating coil with a high frequency alternating current of 450 to 500 kHz, so that the steam generating device can vaporize the sterile water flowing through the steam generating device into steam; The lens image decoding board comprises: The lens image decoding module is electrically connected to the touch display screen and the lens in the ablation needle handle respectively, and is used to decode the image data collected by the lens and transmit it to the touch display screen, so that the touch display screen can display the steam ablation system information and the lens image at the same time.

2. A control system for a steam ablation device according to claim 1, characterized in that: The output power of the DC power module is greater than 300w.

3. A control system for a steam ablation device according to claim 1, characterized in that: The DC2DC module is configured as a DC2DC module with an isolation circuit which can improve the ripple interference of the entire system.

4. A control system for a steam ablation device according to claim 1, characterized in that: The MCU main control module uses a steady-state energy method to adjust the power output by the radio frequency power supply module.

5. The control system of a steam ablation device according to claim 1, characterized in that: The MCU main control module is also connected to the starting position sensor, push head position sensor and end position sensor on the injection pump in the host, and is used to calculate the remaining water volume in the syringe based on the data collected by the starting position sensor, push head position sensor and end position sensor, and to determine whether the syringe has been installed on the injection pump and whether the sterile water in the syringe has been injected.

6. A control system for a steam ablation device according to claim 5, characterized in that: When the remaining water amount in the syringe reaches the preset value, the touch display screen is controlled to issue a prompt that the remaining liquid in the syringe is insufficient; when it is determined that the sterile water in the syringe has been injected, the syringe pump drive module is immediately controlled to stop the syringe pump motor and the RF power supply module from outputting high-frequency alternating current, and the touch display screen is controlled to issue a prompt to refill the syringe.

7. A control system for a steam ablation device according to claim 1, characterized in that: The MCU main control module is also electrically connected to the operation button module on the ablation needle handle.

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