Electric loop ligature device control system and method

Abstract

The invention discloses an electric loop ligature device control system which comprises a main control chip, a power management module, a power switch key, an air pump driving module, a motor switch key, an air pressure sensor and an air pressure indicator lamp. The invention further discloses a control method of the electric loop ligature device. The control method comprises the following steps that S1, the application program of the control system of the electric loop ligature device is started to initialize related hardware; s2, detecting a power switch key state and a motor switch key state through a main control chip; s3, the main control chip outputs a corresponding control signal to control the air pump to start working, and pressure data in the air chamber is collected through the air pressure sensor, converted, calculated and transmitted to the main control chip; s4, the main control chip judges the interval where the pressure value is located and controls the corresponding number of air pressure indicator lamps to be turned on according to the interval where the pressure value is located. The negative pressure can be adjusted and visually displayed through the control system, so that the ligation device is safer and more convenient to use.

Description

Technical Field

[0001] This invention relates to the field of electric banding device application technology, specifically to an electric banding device control system and method. Background Technology

[0002] A ligation device is a medical instrument widely used in minimally invasive surgery and endoscopic treatment. It is primarily used to ligate blood vessels, diseased tissue, or abnormal structures, such as hemorrhoids, esophageal varices, and polyps, to achieve hemostasis, resection, or fixation. Its technological development stems from the clinical medical demand for minimally invasive, efficient, and safe treatment methods, combining innovative achievements in materials science, mechanical engineering, and medical technology.

[0003] However, there is an existing hemorrhoid ligation stapler that uses a drive motor to rotate a winding post, which then pulls the elastic wire taut. The elastic coil falls off and ligates the hemorrhoid tissue. The tightening continues until the elastic coil stops shrinking. Under the reaction force of the elastic wire, the sleeve moves forward, and the blade cuts the elastic wire at the end of the sleeve near the gun body. The sleeve quickly returns to its original position under the tension of the spring at the end of the gun body. The double-control switch button is pressed to cut off the power, and the motor stops working, completing one automatic workflow. Multiple operations can be repeated to perform multiple consecutive ligations on multiple hemorrhoid tissues.

[0004] However, existing hemorrhoid ligation staplers have a negative pressure suction tube connected to an external negative pressure suction device to provide suction negative pressure for the stapler. This method is inconvenient because the stapler and the negative pressure source are separate, the wiring is far away, and it is not convenient to adjust the negative pressure. Furthermore, there is no feedback during use, or the feedback is difficult to see or feel directly. In addition, existing staplers with built-in negative pressure sources cannot provide sufficient negative pressure due to the size and cost limitations of handheld staplers, and the staplers are also large and inconvenient to operate. Summary of the Invention

[0005] To address the aforementioned problems, the purpose of this invention is to propose an electric bandaging control system and method. The electric bandaging control system can adjust the pressure of the air chamber, and during the use of the bandaging device, different numbers of indicator lights can illuminate to indicate different pressure ranges, so that the operator can more clearly and quickly observe the current air pressure status of the air chamber and easily grasp the operating status of the electric bandaging device.

[0006] This was achieved through the following technical solutions: Firstly, an electric bandaging device control system is proposed, comprising: a main control chip, used to process and analyze pressure data collected by a pressure sensor, and control a corresponding number of pressure indicator lights to turn on or off based on the analysis results; it is also used to detect the status of the motor switch button in real time, and output corresponding control signals to control the start and stop of the air pump based on the status of the motor switch button; a power management module, which establishes a bidirectional communication connection with the main control chip through an I / O interface, and is used to convert the battery voltage into the operating voltage required by the main control chip according to the control signals sent by the main control chip, providing operating power to the main control chip; a power switch button, connected to the main control chip through a GPIO interface, used to control the overall power supply of the electric bandaging device control system; and an air pump drive module, the control input terminal of which is connected to the main control chip through a GPIO interface, and the air pump drive... The active module receives control signals from the main control chip via a GPIO interface and responds to these signals to drive the air pump, drawing in external gas through the inlet and delivering it to the external air chamber through the outlet to inflate the chamber. A motor switch button, connected to the main control chip via a GPIO interface, controls the air pump's operation; pressing the switch button starts or stops the pump. A pressure sensor detects the internal pressure of the external air chamber and collects pressure data, transmitting this data to the ADC chip via its input pin. The ADC chip then transmits the data to the main control chip via a serial communication interface. Pressure indicator lights, connected to the main control chip via a GPIO interface, display the collected pressure data through a combination of on / off states of the four indicator lights under the chip's control. This control system, by adjusting and visually displaying the air chamber pressure, makes the use of the bandaging device safer and more convenient.

[0007] Preferably, the main control chip has a built-in real-time operating system, which coordinates and controls the execution order and resource allocation of multiple concurrent tasks through task scheduling and priority management. The real-time operating system enables efficient management of multi-task collaboration in the electric bandaging control system, improving the bandaging's operating efficiency.

[0008] Preferably, a 3.7V lithium battery is used to power the main control chip, and the power management module steps down the 3.7V lithium battery voltage to the 3.3V operating voltage required by the main control chip. The power management module can provide stable and reliable power to the main control chip, ensuring its normal operation.

[0009] Preferably, the power management module monitors the operating status of the power supply battery in real time and feeds back any abnormal battery status information to the main control chip via the I / O interface. The main control chip will then cut off the battery power supply or trigger a power-saving mode based on the abnormal status information. By monitoring the operating status of the power supply battery in real time through the power management module, a stable and reliable power supply can be provided to the main control chip, ensuring its normal and safe operation.

[0010] Preferably, different numbers of illuminated pressure indicator lights correspond to different pressure ranges. Specifically, one illuminated pressure indicator light indicates a pressure of 0 to (-20 kPa), two illuminated indicators indicate a pressure of (-20 kPa) to (-40 kPa), three illuminated indicators indicate a pressure of (-40 kPa) to (-60 kPa), and four illuminated indicators indicate a pressure of (-60 kPa) to (-80 kPa). By using different numbers of indicator lights to represent different pressure ranges, the operator can more clearly and quickly observe the current pressure status of the air chamber, facilitating timely monitoring of the electric bandaging device's operating status.

[0011] Secondly, a control method for an electric bandage device is proposed, comprising the following steps: S1. Pressing the power switch button to connect the overall power supply of the electric bandage device control system, and then starting the application program of the electric bandage device control system to initialize the relevant hardware; S2. After the relevant hardware initialization is completed, the main control chip detects the status of the power switch button in real time, and when the electric bandage device control system is on, it also detects the status of the motor switch button in real time; S3. When the motor switch button is detected to be in the running state, the main control chip outputs a corresponding control signal to control the air pump to start working, and after periodically collecting the pressure data in the external air chamber of the air pump through the air pressure sensor, the pressure data is converted and calculated by the ADC chip to obtain the corresponding pressure value and transmitted to the main control chip; S4. After receiving the pressure value, the main control chip first determines the range of the pressure value, and then controls the pin level of the corresponding number of air pressure indicator lights according to the range of the pressure value, lighting up the corresponding number of indicator lights to provide feedback on the air chamber pressure status. This invention's control method, through real-time response to button operations and feedback on the air chamber pressure status, can display the interactive effect of the electric bandage device during operation and promptly grasp the operating status of the electric bandage device.

[0012] Preferably, in step S1, the relevant hardware initialization includes: setting the main control chip pins corresponding to the power switch button and the motor switch button to input mode, the main control chip pin corresponding to the air pressure sensor to input mode, and the main control chip pin corresponding to the air pressure indicator light to output mode. The purpose of initializing the relevant hardware of the electric bandaging control system is to standardize the configuration of the electric bandaging control system, ensuring that the system transitions from an unpredictable power-on state to a controllable and stable operating state.

[0013] Preferably, in step S2, when the main control chip detects that the power switch button triggers a shutdown action, it will cut off the power supply to the electric bandaging control system. By cutting off the power supply when the power switch button triggers a shutdown action, the safe and stable operation of the electric bandaging control system is ensured.

[0014] Preferably, in step S2, when the motor switch button is detected to be in the stop state, the main control chip outputs a corresponding control signal to the control input terminal of the air pump drive module, thereby controlling the air pump to stop working through the air pump drive module. By controlling the air pump to stop working when the motor switch button is in the stop state, it can be ensured that the air pump works in an orderly manner according to the operation instructions.

[0015] Preferably, in step S3, the pressure data conversion calculation formula is: Where P is the converted pressure value, adc_raw is the real-time pressure data collected in the air chamber, and Weight_Zerop is the zero-point calibration value. The pressure data conversion calculation formula accurately calculates the pressure data collected in the air chamber in real time, obtaining a precise pressure value that helps in understanding the actual operating status of the electric banding device.

[0016] The beneficial effects of this invention compared to the prior art are: The technical solution of this invention allows the air pump controlled by the electric banding device control system to directly generate air pressure to the external air chamber without the need for an external negative pressure source. At the same time, it can adjust the pressure of the external air chamber and, during the use of the banding device, different numbers of indicator lights can be lit to indicate different pressure ranges, intuitively displaying the air chamber pressure. This allows the operator to more clearly and quickly observe the current air pressure status of the air chamber and easily grasp the operating status of the electric banding device. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a module control system for an electric bandaging device; Figure 2 This is a flowchart of a control method for an electric bandaging device. Detailed Implementation

[0018] The following will refer to the appendices in the embodiments of the present invention. Figure 1-2 The technical solutions in the embodiments of the present invention will be described in detail below.

[0019] like Figure 1The diagram shows a modular schematic of an electric bandaging control system, including: a main control chip, a power management module, a power switch button, an air pump drive module, a motor switch button, an air pressure sensor, and an air pressure indicator light. The power switch button, motor switch button, and air pressure indicator light are all connected to the main control chip via corresponding GPIO interfaces. The power management module establishes a bidirectional communication connection with the main control chip through an I / O interface. The control input terminal of the air pump drive module is connected to the main control chip through a GPIO interface. The air pressure sensor transmits the collected pressure data to the main control chip through an ADC chip. GPIO stands for General-Purpose Input / Output, a flexible hardware interface that allows a microcontroller to programmatically control its pins as inputs or outputs for connecting external devices, sensors, or actuators. I / O stands for Input / Output, responsible for data exchange between the system and external devices. Therefore, the control system of this invention can adjust the air chamber pressure and display it intuitively, making the bandaging process safer and more convenient.

[0020] The control system specifically includes the following components: The main control chip, as the core control unit of the electric bandaging device control system, is used to process and analyze the pressure data collected by the air pressure sensor, and control the corresponding number of air pressure indicator lights to turn on or off according to the analysis results, so as to realize the visualization of air pressure; it is also used to detect the status of the motor switch button in real time, and output corresponding control signals to control the start and stop of the air pump according to the status of the motor switch button, so that the air pump can work in an orderly manner according to the operation instructions of the main control chip.

[0021] The power management module establishes a bidirectional communication connection with the main control chip via the I / O interface. It converts the battery voltage to the operating voltage required by the main control chip based on control signals sent by the chip, providing power to the chip. The battery uses a 3.7V lithium battery to power the chip, and the power management module steps down the 3.7V battery voltage to the required 3.3V operating voltage. Simultaneously, the power management module monitors the battery's operating status in real time and feeds back any abnormal battery conditions to the main control chip via the I / O interface. Abnormal battery conditions include over-discharge, overcharge, or under-charge. Based on these abnormal conditions, the main control chip will either cut off battery power or trigger a power-saving mode. Thus, the power management module provides stable and reliable power to the main control chip, ensuring its normal and safe operation.

[0022] The power switch button, as the master control switch of the electric bandaging device control system, is connected to the main control chip through the GPIO interface. It is used to control the power supply of the electric bandaging device control system to be turned on and off. Its operation is simple and direct, and it is a key operating component for starting and stopping the electric bandaging device control system.

[0023] The air pump drive module's control input is connected to the main control chip via a GPIO interface. The air pump drive module receives control signals output by the main control chip through the GPIO interface and responds to the control signals to drive the air pump to work, drawing in external gas through the air inlet and delivering it to the external air chamber of the air pump through the air outlet to inflate the air chamber. The air pump serves as the inflation power source for the electric bandaging control system, and is used to deliver the drawn-in gas to the air chamber through its own operation to meet the inflation requirements of the air chamber.

[0024] The motor switch button is connected to the main control chip via the GPIO interface and is used to control the working status of the air pump. When the motor switch button is pressed, the air pump will start running or stop working, so as to realize flexible control of the air pump operation.

[0025] A pressure sensor is used to detect the internal pressure of the external air chamber of the air pump and to collect the pressure data inside the air chamber. The collected pressure data is transmitted to the ADC chip through the input pin of the ADC chip, and then the ADC chip transmits it to the main control chip through the serial communication interface, providing a basis for subsequent pressure monitoring and control. Among them, ADC stands for Analog-to-Digital Converter, which is an integrated circuit chip that converts continuous analog signals into discrete digital signals. In this invention, it is used to convert the collected analog pressure data into digital values.

[0026] The air pressure indicator lights are connected to the main control chip via the GPIO interface. Under the control of the main control chip, the combination of the on and off of the four air pressure indicator lights indicates the magnitude of the collected air pressure data in the air chamber.

[0027] In this embodiment, different numbers of illuminated air pressure indicator lights correspond to different pressure ranges. Specifically, one illuminated air pressure indicator light indicates a pressure of 0-(-20 kPa), two illuminated air pressure indicator lights indicate a pressure of (-20 kPa)-(-40 kPa), three illuminated air pressure indicator lights indicate a pressure of (-40 kPa)-(-60 kPa), and four illuminated air pressure indicator lights indicate a pressure of (-60 kPa)-(-80 kPa). The pressure reference standard is atmospheric pressure, and a negative pressure range indicates that the pressure inside the air chamber is negative. Thus, this invention uses different numbers of illuminated indicator lights to represent different pressure ranges, allowing the operator to clearly and quickly observe the current air pressure status of the air chamber, facilitating timely monitoring of the ligation device's operating status.

[0028] In this embodiment, the main control chip has a built-in real-time operating system that coordinates and controls the execution order and resource allocation of multiple concurrent tasks through task scheduling and priority management. Specifically, the real-time operating system breaks down the functions of the electric bandage control system into multiple independent tasks, including motor control, pressure detection, emergency stop response, and data communication, and allocates a fixed time slice to each task. When the time slice is exhausted or a high-priority task is ready, the task scheduler will immediately switch tasks to avoid a single task blocking the CPU for a long time. For tasks of the same priority, a round-robin scheduling method is used. For example, the power management module and the air pressure sensor task share a 10ms time slice, and the task is switched every 1ms to ensure uniform sampling of pressure data. For tasks of different priorities, a preemptive scheduling method is used. A high-priority task can preempt the CPU usage rights of a low-priority task at any time. For example, in the emergency stop response task, when the user presses the emergency stop button, the emergency stop task immediately preempts the current task, stops the motor and releases the bandage ring within 1ms. The system of this invention can efficiently manage the collaborative work of multiple tasks in the electric bandage control system through the real-time operating system, ensuring that the system responds to emergency events within microseconds, while balancing the concurrent needs of multiple tasks and improving the operating efficiency of the bandage.

[0029] like Figure 2 The diagram shows a flowchart of a control method for an electric bandage device. First, the application program for the electric bandage device control system is launched to initialize the relevant hardware. Then, the main control chip detects the states of the power switch and motor switch buttons. When the motor switch button is in the running state, the main control chip outputs a corresponding control signal to start the air pump. The air pressure sensor periodically collects pressure data from the air chamber and transmits it to the main control chip. Finally, the main control chip converts and calculates the pressure data to obtain the corresponding pressure range. Based on this range, it controls the pin levels of the corresponding number of air pressure indicator lights, illuminating the corresponding number of indicator lights to provide feedback on the air chamber pressure status. This control method, through real-time response to button operations and feedback on the air chamber pressure status, can display the interactive effect of the electric bandage device during operation and promptly grasp its operating status.

[0030] The method specifically includes the following: S1. First, press the power switch button to connect the overall power supply of the electric banding device control system, and then start the application program of the electric banding device control system to initialize the relevant hardware. The relevant hardware initialization includes: setting the main control chip pins corresponding to the power switch button and the motor switch button to input mode, setting the main control chip pin corresponding to the air pressure sensor to input mode, and setting the main control chip pin corresponding to the air pressure indicator to output mode. The purpose of this invention is to standardize the configuration of the electric banding device control system by initializing the relevant hardware of the electric banding device control system, so as to ensure that the system changes from an unpredictable power-on state to a controllable and stable working state.

[0031] S2. After the relevant hardware initialization is completed, the main control chip monitors the power switch button status in real time. When the main control chip detects that the power switch button has triggered a shutdown action, it cuts off the power supply to the electric bandaging control system to ensure the safe and stable operation of the electric bandaging control system. When the electric bandaging control system is in the on state, the motor switch button status is monitored in real time.

[0032] S3. When the motor switch button is detected to be in the running state, the main control chip outputs a corresponding control signal to control the air pump to start working. After periodically collecting the pressure data in the air chamber of the air pump through the air pressure sensor, the pressure data is converted and calculated by the ADC chip to obtain the corresponding pressure value and transmitted to the main control chip. When the motor switch button is detected to be in the stop state, the main control chip outputs a corresponding control signal to the control input terminal of the air pump drive module, and controls the air pump to stop working through the air pump drive module to ensure that the air pump works in an orderly manner according to the operation instructions.

[0033] S4. After receiving the pressure value, the main control chip first determines the range of the pressure value, and then controls the pin level of the corresponding number of air pressure indicator lights according to the range of the pressure value, so as to light up the corresponding number of air pressure indicator lights and provide feedback on the air pressure status of the air chamber in a visual way.

[0034] Step S1 is the initialization stage of the electric banding device control system, and steps S2, S3 and S4 are the main loop stages of the electric banding device control system. After completing the relevant hardware initialization, the electric banding device control system enters the main loop stage. The main loop stage continuously repeats the above process: button detection, air pump control, data acquisition and processing and indicator light control, and responds to button operations and provides feedback on air pressure status in real time.

[0035] In this embodiment, the pressure data conversion calculation formula in step S3 is as follows: Where P is the converted pressure value, adc_raw is the real-time pressure data collected in the air chamber, and Weight_Zerop is the zero-point calibration value, i.e., the ADC reference value when the air chamber is not inflated; and The pressure value in the air chamber ranges from 0 to... The pressure data collected in real time in the air chamber is accurately calculated using the pressure data conversion calculation formula, which helps to grasp the actual operating status of the electric banding device.

[0036] In summary, this invention, through the electric bandaging device control system, controls the air pump to directly generate air pressure to the external air chamber without requiring an external negative pressure source. It also allows for adjustment of the external air chamber pressure and, during bandaging device use, illuminates different numbers of indicator lights to represent different pressure ranges, providing a clear and quick way for the operator to observe the current air pressure status and promptly grasp the operating status of the electric bandaging device. This represents a significant advancement.

[0037] The above embodiments are merely illustrative of the technical concept of the present invention and should not be construed as limiting the scope of protection of the present invention. Any modifications made to the technical solutions based on the technical concept proposed in this invention shall fall within the scope of protection of this invention.

Claims

1. A control system for an electric bandaging device, characterized in that, include: The main control chip is used to process and analyze the pressure data collected by the air pressure sensor, and control the corresponding number of air pressure indicator lights to turn on or off according to the analysis results. It is also used to detect the status of the motor switch button in real time, and output corresponding control signals to control the start and stop of the air pump according to the status of the motor switch button. The power management module establishes a bidirectional communication connection with the main control chip through the I / O interface. It is used to convert the voltage of the power supply battery into the operating voltage required by the main control chip according to the control signals sent by the main control chip, so as to provide the main control chip with operating power. The power switch button is connected to the main control chip via the GPIO interface and is used to control the power supply of the electric bandaging device control system. The air pump drive module has its control input terminal connected to the main control chip via a GPIO interface. The air pump drive module receives the control signal output by the main control chip via the GPIO interface and responds to the control signal to drive the air pump to work, drawing in external gas through the air inlet and then delivering it to the external air chamber of the air pump through the air outlet to inflate the air chamber. The motor switch button is connected to the main control chip via the GPIO interface and is used to control the working status of the air pump. When the motor switch button is pressed, the air pump will start running or stop working. The air pressure sensor is used to detect the internal pressure of the air pump's external air chamber and collect the pressure data inside the air chamber. The collected pressure data is then transmitted to the ADC chip through the input pin of the ADC chip, and then the ADC chip transmits it to the main control chip through the serial communication interface. The air pressure indicator lights are connected to the main control chip via the GPIO interface. Under the control of the main control chip, the combination of the on and off of the four air pressure indicator lights indicates the magnitude of the collected air pressure data in the air chamber.

2. The electric banding device control system according to claim 1, characterized in that, The main control chip has a built-in real-time operating system that coordinates and controls the execution order and resource allocation of multiple concurrent tasks through task scheduling and priority management.

3. The electric banding device control system according to claim 1, characterized in that, The power supply uses a 3.7V lithium battery to power the main control chip, and the power management module steps down the 3.7V lithium battery voltage to the 3.3V operating voltage required by the main control chip.

4. The electric banding device control system according to claim 1, characterized in that, The power management module monitors the operating status of the power supply battery in real time and feeds back abnormal status information of the power supply battery to the main control chip through the I / O interface. The main control chip will cut off the power supply to the battery or trigger the power saving mode based on the abnormal status information.

5. The electric banding device control system according to claim 1, characterized in that, Different numbers of illuminated pressure indicator lights correspond to different pressure ranges. One illuminated pressure indicator light indicates a pressure of 0 to (-20 kPa), two illuminated pressure indicator lights indicate a pressure of (-20 kPa) to (-40 kPa), three illuminated pressure indicator lights indicate a pressure of (-40 kPa) to (-60 kPa), and four illuminated pressure indicator lights indicate a pressure of (-60 kPa) to (-80 kPa).

6. A method for controlling an electric ligator, employing an electric ligator control system as described in any one of claims 1-5, characterized in that, The method includes the following steps: S1. Press the power switch button to turn on the overall power supply of the electric banding device control system, and then start the application program of the electric banding device control system to initialize the relevant hardware. S2. After the relevant hardware initialization is completed, the power switch button status is detected in real time through the main control chip, and the motor switch button status is detected in real time when the electric banding device control system is turned on. S3. When the motor switch button is detected to be in the running state, the main control chip outputs a corresponding control signal to control the air pump to start working. After the air pressure sensor collects the pressure data in the air chamber of the air pump at regular intervals, the pressure data is converted and calculated by the ADC chip to obtain the corresponding pressure value and then transmitted to the main control chip. S4. After receiving the pressure value, the main control chip first determines the range of the pressure value, and then controls the pin level of the corresponding number of air pressure indicator lights according to the range of the pressure value, so as to light up the corresponding number of indicator lights and provide feedback on the air pressure status of the air chamber.

7. The electric banding device control method according to claim 6, characterized in that, In step S1, the relevant hardware initialization includes: setting the main control chip pins corresponding to the power switch button and the motor switch button to input mode, setting the main control chip pin corresponding to the air pressure sensor to input mode, and setting the main control chip pin corresponding to the air pressure indicator light to output mode.

8. The electric banding device control method according to claim 6, characterized in that, In step S2, when the main control chip detects that the power switch button triggers the shutdown action, it will cut off the power supply to the electric bandaging device control system.

9. The electric banding device control method according to claim 6, characterized in that, In step S2, when the motor switch button is detected to be in the stop state, the main control chip outputs a corresponding control signal to the control input terminal of the air pump drive module, and controls the air pump to stop working through the air pump drive module.

10. The electric banding device control method according to claim 6, characterized in that, In step S3, the pressure data conversion calculation formula is as follows: Where P is the converted and calculated pressure value, adc_raw is the real-time collected pressure data in the air chamber, and Weight_Zerop is the zero-point calibration value.

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