An irrigation aspirator system, control method, and medium for monitoring pressure within a body cavity

Abstract

The application discloses a kind of monitoring body cavity pressure irrigation aspirator system, control method and medium, system includes body cavity pressure measurement module, for obtaining body cavity pressure and sending to control module;Control module is used to compare the received body cavity pressure with preset body cavity pressure threshold value, according to the difference proportion of body cavity pressure and body cavity pressure, generate control signal including peristaltic pump motor speed, and control signal is sent to peristaltic irrigation module;Wherein, difference proportion and the mapping relationship between motor speed increase proportion or decrease proportion are pre-configured in control module;Peristaltic irrigation module is used to receive control signal and carry out peristaltic irrigation according to control signal;Wherein, peristaltic irrigation module includes peristaltic pump and the irrigation catheter connected with peristaltic pump.The application realizes whole process system monitoring to operating state, guarantees intraoperative irrigation persistence, improves the safety of surgical process.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of irrigation suction devices, in particular to an irrigation suction device system for monitoring pressure in a body cavity, a control method and a medium. BACKGROUND

[0002] Irrigation suction devices are commonly used in endoscopic surgery in some clinical specialties, such as urological endoscopic surgery, gynecological hysteroscopic surgery, and orthopedic arthroscopic surgery. In endoscopic surgery, irrigation suction devices mainly serve the functions of artificially expanding the cavity, providing a clear surgical field, reducing the heat generated by surgical instruments, irrigating the surgical wound, and conducting the heat and laser energy of surgical instruments.

[0003] Currently, the irrigation suction devices used in endoscopic surgery are mostly driven by peristaltic pumps for irrigation and by vacuum pumps for suction. The irrigation catheter on the peristaltic wheel has a fluid pressure measurement sensing device inside the catheter, which can monitor the pressure in the pipeline generated by the rotation of the peristaltic wheel during surgery. The pressure drop generated after the irrigation fluid passes through the irrigation catheter and the irrigation channel of the endoscope ensures that the pressure in the body cavity is always lower than the pressure in the pipeline, thereby ensuring the safety of the surgical process.

[0004] However, the inner diameters of the irrigation channels of endoscopes are not the same, and many endoscopic instruments have channels that also serve as irrigation channels. In addition, the diameters of surgical instruments vary, and different diameter surgical instruments are often replaced during surgery, which can easily cause the pressure in the pipeline to frequently exceed the safety threshold and stop irrigation, but the pressure in the body cavity does not rise at this time. If negative pressure suction is also turned on, it is more likely that the irrigation fluid will not flow into the cavity, causing the pressure in the cavity to drop sharply, the body cavity to collapse, and the wound in the cavity to bleed, which can force the surgery to be temporarily suspended, directly affecting the surgical outcome and posing a significant safety risk. If the pipeline pressure threshold is artificially increased during surgery, it is likely that a large amount of irrigation fluid will be injected into the cavity, leading to the absorption of excessive irrigation fluid by the patient and increasing the risk of complications such as sepsis, hyponatremia, and even death.

[0005] In summary, the irrigation suction devices in the prior art cannot guarantee the continuity of irrigation during surgery, which is not conducive to the safety of the surgical process. SUMMARY

[0006] The present application provides an irrigation suction device system for monitoring pressure in a body cavity, a control method and a medium, which solves the technical problem that the irrigation suction devices in the prior art cannot guarantee the continuity of irrigation during surgery, which is not conducive to the safety of the surgical process, and achieves full-process system monitoring of the operating state, guarantees the continuity of irrigation during surgery, and improves the safety of the surgical process.

[0007] In a first aspect, to solve the above technical problems, the present application provides an irrigation suction device system for monitoring pressure in a body cavity, comprising:

[0008] a body cavity pressure measuring module configured to acquire a body cavity pressure and send the body cavity pressure to the control module;

[0009] a control module configured to compare the received body cavity pressure with a preset body cavity pressure threshold, generate a control signal including a motor speed of a peristaltic pump according to a difference ratio between the body cavity pressure and the body cavity pressure threshold, and send the control signal to the peristaltic flushing module; wherein a mapping relationship between the difference ratio and an increase ratio or a decrease ratio of the motor speed is preconfigured in the control module;

[0010] a peristaltic flushing module configured to receive the control signal and perform peristaltic flushing according to the control signal; wherein the peristaltic flushing module includes the peristaltic pump and a flushing catheter connected to the peristaltic pump.

[0011] Preferably, the system further includes:

[0012] a pipeline pressure measuring module configured to acquire a pipeline pressure and send the pipeline pressure to the control module;

[0013] The control module is further configured to, when an abnormality of the body cavity pressure or a failure of the pressure measuring instrument is monitored, obtain a current cavity pressure according to the received pipeline pressure and a preset pressure compensation model, compare the current cavity pressure with the body cavity pressure threshold, generate a current control signal including a motor speed of a peristaltic pump according to a difference ratio between the current cavity pressure and the body cavity pressure threshold, and adjust a flushing flow according to the current control signal.

[0014] Preferably, the system further includes an acceleration flushing module, the acceleration flushing module includes an acceleration control unit and a switching unit, the acceleration control unit is in communication connection with the peristaltic pump through the switching unit, and the acceleration control unit is configured to control acceleration of the peristaltic pump.

[0015] Preferably, the system further includes a negative pressure suction module, the negative pressure suction module includes a vacuum pump and a suction device, the vacuum pump is connected to the suction device, and the suction device is configured to maintain a low inflation pressure state in the body cavity through a negative pressure suction force.

[0016] Preferably, the flushing catheter includes a pipeline pressure sensing box, a calibration chip and a fixing seat, the pipeline pressure sensing box is on the fixing seat, the pipeline pressure sensing box is configured to acquire a pipeline pressure signal of a measuring point and send the pipeline pressure signal to the control module, and the calibration chip is configured to identify the fixing seat and record a working time of the flushing catheter.

[0017] Preferably, the intracorporeal pressure measuring module comprises an intracorporeal pressure measuring unit and a pressure measuring catheter, the pressure measuring catheter is provided with a three-way regulating valve, the intracorporeal pressure measuring unit is connected with the pressure measuring catheter through the three-way regulating valve, the other end of the pressure measuring catheter is connected with a pressure measuring endoscope or a pressure measuring surgical instrument, and the other end of the three-way regulating valve is a liquid injection hole.

[0018] Preferably, the pipeline pressure measuring module comprises a pipeline pressure measuring unit, and the pipeline pressure measuring unit is arranged on the fixing seat.

[0019] Preferably, the system further comprises a display module, the display module is in communication connection with the control module, and the display module is used for displaying the working state of the system.

[0020] In the second aspect, the present application provides a control method of an irrigation aspirator system for monitoring intracorporeal pressure, which is realized based on the irrigation aspirator system for monitoring intracorporeal pressure according to any one of the above.

[0021] The intracorporeal pressure is acquired and sent to the control module;

[0022] The received intracorporeal pressure is compared with a preset intracorporeal pressure threshold value, a control signal comprising the rotation speed of a peristaltic pump motor is generated according to the difference ratio of the intracorporeal pressure, and the control signal is sent to the peristaltic irrigation module; wherein the control module is preconfigured with a mapping relationship between the difference ratio and the increase ratio or the decrease ratio of the rotation speed of the motor;

[0023] The control signal is received and peristaltic irrigation is performed according to the control signal; wherein the peristaltic irrigation module comprises a peristaltic pump and an irrigation catheter connected with the peristaltic pump.

[0024] In the third aspect, the present application further provides a computer readable storage medium, which comprises a stored computer program, wherein when the computer program runs, the device where the computer readable storage medium is located performs the control method of the irrigation aspirator system for monitoring intracorporeal pressure according to any one of the above.

[0025] Compared with the prior art, the present application has the following beneficial effects:

[0026] The application provides a flushing aspirator system for monitoring intracavity pressure, comprising an intracavity pressure measuring module for acquiring intracavity pressure and sending the intracavity pressure to a control module; the control module is used for comparing the received intracavity pressure with a preset intracavity pressure threshold, generating a control signal comprising peristaltic pump motor speed according to the difference ratio of the intracavity pressure and the intracavity pressure threshold, and sending the control signal to a peristaltic flushing module; wherein the control module is preconfigured with a mapping relationship between the difference ratio and the motor speed increase ratio or the motor speed decrease ratio; the peristaltic flushing module is used for receiving the control signal and performing peristaltic flushing according to the control signal; wherein the peristaltic flushing module comprises a peristaltic pump and a flushing catheter connected with the peristaltic pump.

[0027] The application realizes interactive monitoring and control of pipeline pressure and intracavity pressure, realizes whole-process real-time monitoring of the operation state of the pipeline pressure, the intracavity pressure, flushing flow, suction pressure and the like of the flushing liquid, guarantees the continuity of intraoperative flushing, maintains the low inflation pressure state in the intracavity through negative pressure suction, and sucks out the flushing liquid in the intracavity and the surgical specimen in the intracavity, improves the safety of the surgical process, expands the universality of the system, improves the efficiency of the surgical process, saves part of surgical instruments, and reduces the treatment cost. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 is a schematic diagram of the flushing aspirator system for monitoring intracavity pressure provided by the embodiment of the application;

[0029] Figure 2 is a schematic diagram of the flushing catheter structure provided by the embodiment of the application;

[0030] Figure 3 is a schematic diagram of the fixing seat structure provided by the embodiment of the application;

[0031] Figure 4 is a schematic diagram of the pressure measuring catheter structure provided by the embodiment of the application;

[0032] Figure 5 is a schematic diagram of the aspirator structure provided by the embodiment of the application;

[0033] Figure 6 is Figure 5 is a local enlarged schematic diagram at a in the figure;

[0034] Figure 7 is a schematic diagram of the control method flow of the flushing aspirator system for monitoring intracavity pressure provided by the embodiment of the application.

[0035] Wherein, the reference signs are as follows: 1, flushing catheter; 2, fixing seat; 3, pressure measuring catheter; 4, three-way regulating valve; 5, aspirator; 6, suction force adjusting mark. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0037] With reference to Figure 1 The first embodiment of the present application provides a flushing aspirator system for monitoring pressure in a body cavity, comprising:

[0038] a body cavity pressure measurement module for acquiring the pressure in the body cavity and sending the pressure to a control module;

[0039] a control module for comparing the received pressure in the body cavity with a preset pressure threshold in the body cavity, generating a control signal including the rotational speed of a peristaltic pump motor according to the difference ratio of the pressure in the body cavity, and sending the control signal to a peristaltic flushing module; wherein the control module is preconfigured with a mapping relationship between the difference ratio and the increase ratio or decrease ratio of the motor speed;

[0040] a peristaltic flushing module for receiving the control signal and performing peristaltic flushing according to the control signal; wherein the peristaltic flushing module comprises a peristaltic pump and a flushing catheter connected to the peristaltic pump.

[0041] Specifically, after obtaining the data, the system will compare the measured pressure with the preset pressure, and according to the difference ratio, the rotational speed of the peristaltic pump motor will be adjusted by a corresponding ratio, and the flushing flow will be adjusted by clicking the change of the rotational speed, so as to reach the stable state of the pressure. Specifically, the flushing flow is adjusted according to the difference ratio of the preset pressure and the measured pressure, and then the flushing flow is increased or decreased accordingly. The control module can adopt a microprocessor system.

[0042] In the interaction process of pressure control and negative pressure control, the most influential factor for the stable balance of pressure is the capture problem of pressure change signal. The pressure change starts from the port of negative pressure, that is, the area where the pressure change occurs first is the body cavity, and then the pressure signal is transmitted to the pipeline pressure sensor through the pipeline, at this time, the pressure measurement will have a slight delay. By directly detecting the pressure in the body cavity, that is, directly detecting the area where the pressure changes fastest, the delay of the pressure signal change is reduced, and the upper limit of the flushing flow is appropriately increased according to the current suction pressure, so as to maintain the stability of the pressure.

[0043] In an embodiment, the system further comprises:

[0044] a pipeline pressure measurement module for acquiring pipeline pressure and sending to the control module;

[0045] The control module is further configured to, when an abnormal body cavity pressure or a pressure measurement instrument failure is monitored, obtain a current cavity pressure according to the received pipeline pressure and a preset pressure compensation model, compare the current cavity pressure with the body cavity pressure threshold, generate a current control signal including a peristaltic pump motor speed according to a difference ratio between the current cavity pressure and the body cavity pressure, and adjust the irrigation flow according to the current control signal.

[0046] In this embodiment, under normal circumstances, the body cavity pressure is used as the control core to systemically control the irrigation flow; under abnormal circumstances, such as a failure of the body cavity pressure sensing measurement module or a failure of the pressure measurement instrument, the system automatically switches to using the pipeline pressure sensing measurement module to systemically control the irrigation flow, and a warning is given on the screen, so that the linkage control function realizes double insurance for pressure control, thereby maximizing the safety of the surgery.

[0047] In this embodiment, under normal circumstances, the body cavity pressure is used as the control core to systemically control the irrigation flow; under abnormal circumstances, such as a failure of the body cavity pressure sensing measurement module or a failure of the pressure measurement instrument, the system automatically switches to using the pipeline pressure sensing measurement module to systemically control the irrigation flow, and a warning is given on the screen, so that the linkage control function realizes double insurance for pressure control, thereby maximizing the safety of the surgery.

[0048] The pipeline pressure sensing measurement module is used as the core, i.e., a traditional pressure control mode is used, in which the current cavity pressure is calculated according to the pipeline pressure and a pressure compensation algorithm / model, the calculated cavity pressure is compared with a preset pressure, the cavity pressure change is detected, and the irrigation flow is adjusted.

[0049] Reference Figure 2 In a specific implementation, the irrigation catheter includes a pipeline pressure sensing box, a calibration chip, and a fixing seat, the pipeline pressure sensing box is on the fixing seat, the pipeline pressure sensing box is configured to acquire a pipeline pressure signal of a measurement point and send the pipeline pressure signal to the control module, and the calibration chip is configured to identify the fixing seat and record a working time of the irrigation catheter.

[0050] Exemplarily, the flush conduit has two pipeline pressure sensing boxes and a calibration chip, which collect pipeline pressure signals of two measuring points, are transmitted to a microprocessor system through pipeline pressure measuring devices on the fixed seat for summary calculation and control, improve the measurement and calculation accuracy of the pipeline pressure, avoid the pipeline pressure signals collected by a single collection point from being easily disturbed by pulse signals generated by the operation of the peristaltic wheel, and affect the pressure calculation accuracy of the microprocessor system. The calibration chip can help the system record the use time of the same conduit, facilitate the system to manage the working state of the conduit throughout the process, and remind the user to calibrate the pressure and flow after the cumulative working time of the conduit reaches the calibration period, so as to ensure the normal operation of the flush aspirator and ensure the safety and efficiency of the operation.

[0051] Referring to Figure 3 The fixed seat, i.e., the pipeline pressure sensing box measuring device fixed seat, is installed on the flush aspirator panel or side panel. The fixed seat has three functions, one is to fix the pressure sensing box on the flush conduit, the second is to be the carrier of the two pipeline pressure measuring devices, and the third is to be the carrier of the calibration chip identifier. Exemplarily, the pipeline pressure measuring module includes a pipeline pressure measuring unit, which is arranged on the fixed seat.

[0052] Referring to Figure 4 In this embodiment, the intracorporeal pressure measuring module includes an intracorporeal pressure measuring unit and a pressure measuring conduit, the pressure measuring conduit is provided with a three-way regulating valve, the intracorporeal pressure measuring unit is connected with the pressure measuring conduit through the three-way regulating valve, the other end of the pressure measuring conduit is connected with a pressure measuring endoscope or a pressure measuring surgical instrument, and the other end of the three-way regulating valve is a liquid injection hole. For example, the intracorporeal pressure measuring conduit is used to connect the port of the flush aspirator built-in intracorporeal pressure sensing measuring module and the pressure measuring surgical instrument or endoscope at the patient end. The three-way regulating valve is provided with a liquid injection hole, so that a syringe can be used to inject liquid into the conduit, and the liquid used is consistent with the flush liquid. After the pressure measuring conduit is connected with the pressure measuring surgical instrument, the liquid injection hole is opened, and normal saline or other liquid same as the flush liquid is injected until the liquid overflows from the distal end of the pressure measuring surgical instrument channel.

[0053] In this embodiment, in addition to the connection port of the intracorporeal pressure measuring unit and the measuring point of the pipeline pressure sensing box measuring device of the pipeline pressure measuring unit, the multifunctional fixed seat, the rest are built-in in the machine. The intracorporeal pressure sensing measuring module is externally connected with a special pressure measuring conduit with a three-way regulating valve, and the other end of the pressure measuring conduit is connected with a pressure measuring endoscope or other pressure measuring surgical instrument. The measuring point of the pipeline pressure sensing box measuring device in the pipeline pressure sensing measuring module is attached to the sensing box of the flush conduit.

[0054] In an embodiment, the system further comprises an accelerated irrigation module, the accelerated irrigation module comprising an accelerated control unit and a switch unit, the accelerated control unit being in communication with the peristaltic pump through the switch unit, the accelerated control unit being configured to control the peristaltic pump to accelerate.

[0055] Illustratively, the switch unit is a foot switch, and the accelerated irrigation function is activated by the foot switch. After the accelerated irrigation function is activated, both the pipeline pressure sensing measurement module and the body cavity pressure sensing measurement module maintain the pressure control function, the peristaltic pump is accelerated to rotate to perfuse, a clear surgical field is obtained, and the surgeon can observe and accurately treat the wound, such as accurately stopping bleeding.

[0056] In an embodiment, the system further comprises a negative pressure suction module, the negative pressure suction module comprising a vacuum pump and a suction device, the vacuum pump being connected to the suction device, the suction device being configured to maintain a low inflation pressure state in the body cavity by negative pressure suction.

[0057] Illustratively, with reference to Figure 5 , Figure 6 , the suction device has functions of suction force adjustment, suction of irrigation fluid and surgical specimens, channel support, endoscope and surgical instrument access, etc. The suction device is designed with suction force adjustment marks, which are divided into three gears: zero suction (o), weak suction (-) and strong suction (=). When the endoscope is observing in the body cavity or the surgical instrument is working, weak suction or zero suction is used. When the endoscope is withdrawn in the channel of the suction device and is ready to suck out surgical specimens or blood clots outside the body, strong suction or a combination of strong and weak suction is used. The suction force adjustment marks are simple and practical, have obvious tactile sensation, and are easy to clean and disinfect. The outer tube of the suction device has a scale display, which is used for channel support and is convenient for the surgeon to master the depth of the instrument entering.

[0058] In an embodiment, the system further comprises a display module, the display module being in communication with the control module, the display module being configured to display the working state of the system. For example, the display module is a touch screen, which has functions of touch screen display, fault display and adjustment of system modules and control functions.

[0059] In order to facilitate the understanding of the present application, the following will be further described by taking percutaneous nephrolithotomy in urology as an example.

[0060] 1. The patient is in a prone position with legs apart, and the operation and instrument preparation are completed.

[0061] 2. The irrigation and suction device cavity pressure measurement device is adjusted to be consistent with the level of the patient's kidney, and the irrigation catheter, pressure measurement catheter, suction catheter, vacuum collection tank, foot switch, power cord and other devices at the machine end are installed.

[0062] 3. The irrigation catheter at the patient end is connected to the percutaneous nephroscope, and the suction tube of the stone collection bottle (sterile) is connected to the suction inlet port of the vacuum collection tank.

[0063] 4. One end of the patient's body cavity pressure measuring catheter is connected with the pressure measuring port of the nephroscope or pressure measuring instrument.

[0064] 5. The nephroscope is placed horizontally and is at the same level as the main machine cavity pressure measuring device and the patient's kidney. Saline is injected into the body cavity pressure measuring catheter until the flushing fluid overflows from the distal end port of the nephroscope channel.

[0065] 6. Click the main machine screen pressure zero button to set the pipeline pressure, body cavity (intra-renal, same below) positive pressure, body cavity negative pressure, and flushing flow safety threshold.

[0066] 7. Under the guidance of C-arm X-ray machine or B-ultrasound, percutaneous renal puncture and dilation are completed, the suction instrument (suction sheath) is placed, and the suction tube (sterile) of the stone collection bottle is connected. The flushing and suction function is started (the suction sheath pressure control switch is opened), the nephroscope is inserted into the sheath to observe the kidney, the stone is found, the holmium laser fiber is inserted through the nephroscope instrument channel, and the laser lithotripsy is started.

[0067] 8. The real-time data change of the body cavity pressure is strictly monitored by the flushing and suction system during the operation to prevent overpressure from causing liquid extravasation and even serious complications such as sepsis. The negative pressure suction is continuously opened, and

[0068] The negative pressure suction is adjusted by the surgeon through the suction sheath pressure control switch: during the observation and intra-renal lithotripsy process, low negative pressure suction is used; during the stone suction and intra-sheath lithotripsy, high negative pressure suction is used, and high and low negative pressure suction is alternately used. If the system monitors that the real-time body cavity pressure reaches the preset threshold, the flushing and suction instrument will issue an audible and visual alarm, and the flushing is immediately stopped until the measured body cavity pressure is lower than the preset threshold, and the flushing function is automatically restarted.

[0069] 9. If the vision is not clear due to bleeding during the operation, the foot control switch can be used to start the accelerated flushing function. The system will increase the rotation speed of the peristaltic wheel within 10 seconds to speed up the flushing. At this time, the pipeline pressure and body cavity pressure measuring module maintains the pressure control function, the flushing liquid accelerates to flush away the blood clots, which helps the surgeon to find the bleeding point and take appropriate measures to handle it. After completing the accelerated flushing function, the system automatically transfers the pressure monitoring to the body cavity pressure measuring module and restores its control function, and at the same time, the pipeline pressure measuring module also restores its measuring and control functions.

[0070] 10. The surgeon can make appropriate adjustments to the flushing and suction related parameters according to the patient's condition and the needs of the operation.

[0071] 11. After the operation, the drainage tube is placed, and the operation is completed.

[0072] In summary, the present application is based on microprocessor technology, electromechanical technology, microelectronic sensing technology, and fluid mechanics control technology, realizes interactive monitoring and control of pipeline pressure and intracorporeal pressure, and realizes real-time monitoring of the whole process of the operating state of pipeline pressure, intracorporeal pressure, flushing flow, and suction pressure of the flushing liquid, guarantees the continuity of intraoperative flushing, maintains a low inflation pressure state in the body cavity through negative pressure suction, and sucks out the flushing liquid in the body cavity and the surgical specimen in the body cavity. The safety of the surgical process is improved, the universality of the system is expanded, the efficiency of the surgical process is improved, the work pressure and psychological pressure of the surgical medical team are effectively reduced, and part of the surgical instruments are saved, thereby reducing the treatment cost.

[0073] Reference Figure 7 The first embodiment of the present application provides a control method of a flushing aspirator system for monitoring intracorporeal pressure, comprising the following steps:

[0074] S11, acquiring intracorporeal pressure and sending the intracorporeal pressure to a control module;

[0075] S12, comparing the received intracorporeal pressure with a preset intracorporeal pressure threshold value, generating a control signal including the rotation speed of a peristaltic pump motor according to the difference ratio of the intracorporeal pressure, and sending the control signal to a peristaltic flushing module; wherein the control module is preconfigured with a mapping relationship between the difference ratio and the increase ratio or the decrease ratio of the motor rotation speed;

[0076] S13, receiving the control signal and performing peristaltic flushing according to the control signal; wherein the peristaltic flushing module comprises a peristaltic pump and a flushing catheter connected with the peristaltic pump.

[0077] It should be noted that the control method of the flushing aspirator system for monitoring intracorporeal pressure provided by the embodiment of the present application is used to realize all control functions of the flushing aspirator system for monitoring intracorporeal pressure in the above-mentioned embodiment, and the working principles and beneficial effects of the two are one-to-one corresponding, so they will not be repeated.

[0078] The embodiment of the present application also provides a terminal device. The terminal device comprises a processor, a memory, and a computer program stored in the memory and executable on the processor, such as a control program of a flushing aspirator system for monitoring intracorporeal pressure. The processor implements the steps in the above-mentioned various control embodiments of the flushing aspirator system for monitoring intracorporeal pressure when executing the computer program, such as the step S11 shown in the figure. Figure 7 Alternatively, the processor implements the functions of the modules / units in the above-mentioned various device embodiments when executing the computer program, such as the control module.

[0079] For example, the computer program can be divided into one or more modules / units, which are stored in the memory and executed by the processor to complete the present application. The one or more modules / units can be a series of computer program instruction segments capable of completing a specific function, which are used to describe the execution process of the computer program in the terminal device.

[0080] The terminal device can include, but is not limited to, a processor, a memory. Those skilled in the art can understand that the above components are only examples of the terminal device and do not constitute a limitation on the terminal device, and can include more or fewer components than the above, or combine certain components, or different components, for example, the terminal device can also include an input / output device, a network access device, a bus, etc.

[0081] The processor can be a central processing unit (CPU), and can also be other general-purpose processors, digital signal processors (DSP), application specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc. The general-purpose processor can be a microprocessor or the processor can also be any conventional processor and the like, which is the control center of the terminal device, and connects all parts of the terminal device through various interfaces and lines.

[0082] The memory can be used to store the computer program and / or modules, and the processor realizes various functions of the terminal device by running or executing the computer program and / or modules stored in the memory, and calling data stored in the memory. The memory can mainly include a program storage area and a data storage area, wherein the program storage area can store an operating system, at least one application required by a function (such as a sound playing function, an image playing function, etc.), etc.; the data storage area can store data created according to the use of the mobile phone (such as audio data, a phone book, etc.), etc. In addition, the memory can include a high-speed random access memory, and can also include a non-volatile memory, for example, a hard disk, a memory, a plug-in hard disk, a smart media card (SMC), a secure digital (SD) card, a flash card, at least one disk storage device, a flash memory device, or other volatile solid-state memory devices.

[0083] The modules / units integrated in the terminal device, if realized in the form of software function units and sold or used as independent products, can be stored in a computer readable storage medium. Based on such understanding, all or part of the processes in the above-mentioned embodiment methods can also be completed by a computer program instructing related hardware, and the computer program can be stored in a computer readable storage medium. The computer program can implement the steps of each method embodiment when executed by a processor. The computer program includes computer program code, which can be in the form of source code, object code, executable files, or some intermediate forms, etc. The computer readable medium can include any entity or device, recording medium, U disk, mobile hard disk, magnetic disk, optical disk, computer memory, read-only memory (ROM), random access memory (RAM), electrical carrier signal, telecommunication signal, and software distribution medium, etc. that can carry the computer program code. It should be noted that the computer readable medium can include or exclude contents according to the requirements of legislation and patent practice in the jurisdiction, for example, in some jurisdictions, according to legislation and patent practice, the computer readable medium does not include electrical carrier signals and telecommunication signals.

[0084] It should be noted that the above-described device embodiments are only schematic, and the units described as separate components can or can not be physically separated, and the components shown as units can or can not be physical units, that is, they can be located in one place, or distributed on multiple network units. Part or all of the modules can be selected to achieve the purpose of the embodiment scheme according to actual needs. In addition, the connection relationship between the modules in the device embodiment provided by the present application indicates that there is a communication connection between them, which can be realized as one or more communication buses or signal lines. Those skilled in the art can understand and implement it without creative labor.

[0085] The above-described specific embodiments further illustrate the purpose, technical solutions, and beneficial effects of the present application. It should be understood that the above-described specific embodiments are only examples of the present application and are not intended to limit the protection scope of the present application. It is particularly pointed out that any modification, equivalent replacement, improvement, etc. made by those skilled in the art within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A flushing and suction system for monitoring intracavitary pressure, characterized in that, include: The intracavitary pressure measurement module is used to acquire intracavitary pressure and send it to the control module; The control module is used to compare the received intracavitary pressure with a preset intracavitary pressure threshold, generate a control signal including the speed of the peristaltic pump motor based on the ratio of the difference between the intracavitary pressure and the intracavitary pressure, and send the control signal to the peristaltic flushing module; wherein, the control module is pre-configured with a mapping relationship between the ratio of the difference and the ratio of the increase or decrease of the motor speed; A peristaltic flushing module is used to receive control signals and perform peristaltic flushing according to the control signals; wherein, the peristaltic flushing module includes a peristaltic pump and a flushing conduit connected to the peristaltic pump; The pipeline pressure measurement module is used to acquire pipeline pressure and send it to the control module; The control module is further configured to, when an abnormal pressure is detected in the body cavity or a pressure measuring device malfunctions, obtain the current intracavitary pressure based on the received pipeline pressure and a preset pressure compensation model, compare the current intracavitary pressure with the intracavitary pressure threshold, and generate a current control signal including the peristaltic pump motor speed based on the ratio of the difference between the current intracavitary pressure and the intracavitary pressure, so as to adjust the flushing flow rate according to the current control signal; The intracavitary pressure measurement module includes an intracavitary pressure measurement unit and a pressure measuring catheter. The pressure measuring catheter is equipped with a three-way regulating valve. The intracavitary pressure measurement unit is connected to the pressure measuring catheter through the three-way regulating valve. The other end of the pressure measuring catheter is connected to a pressure measuring endoscope or pressure measuring surgical instrument. The other end of the three-way regulating valve is an injection port.

2. The irrigation and suction system for monitoring intracavitary pressure according to claim 1, characterized in that, The system also includes an accelerated flushing module, which includes an accelerated control unit and a switch unit. The accelerated control unit is communicatively connected to the peristaltic pump through the switch unit and is used to control the acceleration of the peristaltic pump.

3. The irrigation and suction system for monitoring intracavitary pressure according to claim 1, characterized in that, The system also includes a negative pressure suction module, which includes a vacuum pump and a suction device. The vacuum pump is connected to the suction device, which is used to maintain a low expansion pressure state in the body cavity through negative pressure suction.

4. The irrigation and suction system for monitoring intracavitary pressure according to claim 1, characterized in that, The flushing conduit includes a pipe pressure sensing box, a calibration chip, and a mounting base. The pipe pressure sensing box is mounted on the mounting base and is used to collect pipe pressure signals at measurement points and send them to the control module. The calibration chip is used to identify the mounting base and record the working time of the flushing conduit.

5. The irrigation and suction system for monitoring intracavitary pressure according to claim 4, characterized in that, The pipeline pressure measurement module includes a pipeline pressure measurement unit, which is mounted on the fixed base.

6. The irrigation and suction system for monitoring intracavitary pressure according to claim 1, characterized in that, The system also includes a display module, which is communicatively connected to the control module and is used to display the system's operating status.

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