Control method, control system and control apparatus for insufflator, and insufflator

Abstract

The present disclosure relates to the technical field of medical instruments, and provides a control method, control system and control apparatus for an insufflator, and an insufflator. The control method for an insufflator comprises the following steps: acquiring a measured pressure read by an insufflator; when the measured pressure is greater than a first pressure threshold and the maintenance duration is greater than or equal to a first preset duration, acquiring a pressure change rate within the first preset duration; if the pressure change rate is greater than a first pressure change rate threshold, determining that an expected fluctuation has occurred, and starting a first adjustment procedure; and if the pressure change rate is less than or equal to the first pressure change rate threshold, determining that a continuous change has occurred, and starting a second adjustment procedure. By distinguishing the causes of overpressure more precisely on the basis of the pressure change rate, different adjustment procedures can be adopted to make targeted adjustments for expected fluctuating overpressure, thereby avoiding the problems of excessive wear of device components and prolonged pressure stabilization time of the device.

Description

Control methods, control systems, control devices, and insufflator for pneumoperitoneum

[0001] Cross-reference to related applications

[0002] This disclosure claims priority to Chinese Patent Application No. 2025101798977, filed on February 19, 2025, entitled "Control Method, Control System, Control Device and Insufflation Machine for Insufflation Machine", the entire contents of which are incorporated herein by reference. Technical Field

[0003] This disclosure relates to the field of medical device technology, and in particular to a control method, control system, control device, and insufflation machine for an insufflation machine. Background Technology

[0004] In existing pneumoperitoneum devices, a pressure monitoring and regulation mechanism is typically used to maintain stable pneumoperitoneum pressure. This mechanism has a specific pressure threshold; once a fluctuation in pneumoperitoneum pressure is detected and exceeds this threshold, the device immediately initiates a deflation procedure to adjust. However, in certain scenarios, such as when a doctor performs chest compressions on a patient during surgery, overpressure can occur in the pneumoperitoneum, and this fluctuation often exceeds the preset threshold. According to traditional pneumoperitoneum stabilization methods, the device would rapidly deflate in such situations, requiring a large amount of air to be added after the compressions are completed to restore pressure balance within the pneumoperitoneum.

[0005] This traditional method of stabilizing pneumoperitoneum has significant drawbacks. Firstly, whenever the pneumoperitoneum pressure exceeds a threshold, the equipment inevitably performs deflation and inflation, increasing the frequency of component use, leading to higher wear and tear, and raising maintenance costs and the risk of malfunction. Secondly, frequent deflation and inflation prolong the time required for the pneumoperitoneum to stabilize, thus slowing down the overall surgical progress. This delayed stabilization problem is particularly pronounced when the pressure fluctuations caused by the surgeon's pressure are relatively short-lived, and surgeons often want the pneumoperitoneum to stabilize quickly after pressure application for better subsequent surgical procedures.

[0006] Therefore, there is an urgent need for a new method to control the pneumoperitoneum machine, which can effectively solve the problems of high wear and tear on equipment parts and long time to stabilize pneumoperitoneum pressure caused by expected fluctuations, such as those caused by the doctor's pressure. This would improve surgical efficiency and reduce equipment wear and tear. Summary of the Invention

[0007] The purpose of this disclosure is to provide a control method for an insufflator, which solves the technical problems of high wear and tear on equipment components due to expected fluctuations and long time for equipment to stabilize voltage in the prior art.

[0008] In a first aspect, embodiments of this disclosure provide a control method for an insufflator, comprising the following steps: acquiring a monitoring pressure read by the insufflator; when the monitoring pressure is greater than a first pressure threshold and the duration of the monitoring pressure is greater than or equal to a first preset duration, acquiring the pressure change rate within the first preset duration; if the pressure change rate is greater than the first pressure change rate threshold, determining it as expected fluctuation and initiating a first adjustment procedure; if the pressure change rate is less than or equal to the first pressure change rate threshold, determining it as continuous change and initiating a second adjustment procedure.

[0009] Furthermore, the process of obtaining the monitoring pressure read by the pneumoperitoneum machine includes: obtaining the sampling pressure and the corresponding time of the sampling pressure; taking the average value of the sampling pressure at every N consecutive time points as the monitoring pressure, where N≥1.

[0010] Furthermore, obtaining the pressure change rate within the first preset time period includes: within the first preset time period, including M values ​​of the monitored pressure, dividing the difference between adjacent monitored pressures by the interval between adjacent monitored pressures to obtain M-1 pressure change rates; and taking the maximum value among the M-1 pressure change rates as the pressure change rate within the first preset time period.

[0011] Furthermore, the first adjustment procedure includes: when the monitored pressure is less than or equal to the second pressure threshold and the duration of maintenance is greater than the second preset duration, starting the first pressure reduction procedure; when the monitored pressure is greater than the second pressure threshold, starting the second pressure reduction procedure.

[0012] Furthermore, the first adjustment procedure also includes: issuing a first prompt signal when the monitored pressure is less than the second pressure threshold and the duration of maintenance is less than the second preset duration; issuing a second prompt signal when the monitored pressure is less than or equal to the second pressure threshold and the duration of maintenance is greater than the second preset duration; and issuing a third prompt signal when the monitored pressure is greater than the second pressure threshold.

[0013] Furthermore, the first pressure reduction procedure includes: opening the first pressure relief valve; the second pressure reduction procedure includes: opening the first pressure relief valve and the second pressure relief valve.

[0014] Furthermore, the second adjustment procedure includes: when the monitored pressure is less than or equal to the second pressure threshold, initiating a third pressure reduction procedure and initiating a first counting procedure; when the monitored pressure is greater than the second pressure threshold, initiating a fourth pressure reduction procedure and initiating a second counting procedure.

[0015] Furthermore, the second adjustment procedure also includes: issuing a fourth prompt signal when the monitored pressure is less than or equal to the second pressure threshold; and issuing a fifth prompt signal when the monitored pressure is greater than the second pressure threshold.

[0016] Furthermore, the third pressure reduction procedure includes: opening the first pressure relief valve; the fourth pressure reduction procedure includes: opening the first pressure relief valve and the second pressure relief valve.

[0017] Secondly, this disclosure also provides a control system for an insufflator, comprising: a pressure monitoring module configured to acquire monitoring pressure read by the insufflator and determine whether the monitoring pressure is greater than a first pressure threshold and the duration of maintenance is greater than or equal to a first preset duration; a pressure change rate calculation module connected to the pressure monitoring module, configured to acquire the pressure change rate within the first preset duration when the pressure monitoring module determines that the monitoring pressure is greater than the first pressure threshold and the duration of maintenance is greater than or equal to the first preset duration; a judgment module connected to the pressure change rate calculation module, configured to determine whether the pressure change is expected fluctuation or continuous change based on the pressure change rate calculated by the pressure change rate calculation module; when the pressure change rate is greater than the first pressure change rate threshold, it is determined to be expected fluctuation; when the pressure change rate is less than or equal to the first pressure change rate threshold, it is determined to be continuous change; and an adjustment control module connected to the judgment module, activated when the judgment module determines that the pressure is expected fluctuation and executes a first adjustment procedure; activated when the judgment module determines that the pressure is continuous change and executes a second adjustment procedure to keep the insufflator pressure stable.

[0018] Thirdly, this disclosure also provides a control device for an insufflator, including a processor, a memory, and a computer program stored in the memory and executable on the processor. When the computer program is executed, it implements the method steps in the control method for the insufflator as described above.

[0019] Fourthly, embodiments of this disclosure also provide an insufflator, including a control device for the insufflator as described above; a pressure sensor configured to measure insufflator pressure; a first pressure relief valve and a second pressure relief valve configured to control insufflator pressure relief; the control device for the insufflator is electrically connected to the pressure sensor, the first pressure relief valve and the second pressure relief valve.

[0020] The embodiments disclosed herein have at least the following technical effects:

[0021] This disclosure provides a method for controlling pneumoperitoneum stability. During surgery, if pneumoperitoneum pressure becomes too high during a phase where stability is required, this method restores the pneumoperitoneum to the necessary pressure. First, the monitoring pressure of the pneumoperitoneum is acquired. A first pressure threshold and a first preset duration are pre-set. When the monitored pressure exceeds the first pressure threshold and the duration is greater than or equal to the first preset duration, the rate of pressure change within the first preset duration is acquired. If the rate of pressure change exceeds the first pressure change rate threshold, it is determined to be expected fluctuation, and a first adjustment procedure is initiated. If the rate of pressure change is less than or equal to the first pressure change rate threshold, it is determined to be continuous change, and a second adjustment procedure is initiated.

[0022] The expected pressure fluctuations caused by manual compression differ significantly in their rate of change from the sustained pressure changes caused by other factors. Therefore, a pre-set threshold for the first pressure change rate is necessary. The causes of expected pressure fluctuations and sustained pressure changes differ. The causes of expected pressure fluctuations are relatively clear, and the pneumoperitoneum needs to quickly return to the desired pressure after these fluctuations. Sustained pressure changes can have various causes, including unpredictable changes in the patient, such as decreased abdominal wall compliance, edema, or congestion of abdominal organs. Another cause is the performance of the pneumoperitoneum machine; for example, bends or blockages in the gas delivery lines can cause a slow increase in pressure. By more precisely differentiating the causes or situations of pressure changes through the rate of pressure change, and employing different adjustment procedures, the problem of high wear and tear on equipment components can be largely avoided. Furthermore, targeted adjustments can be made to expected pressure fluctuations, preventing prolonged stabilization of pneumoperitoneum pressure after these fluctuations, thus improving surgical efficiency and reducing equipment wear. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the specific embodiments of this disclosure or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0024] Figure 1 is a schematic flowchart of a control method for an insufflator provided in an embodiment of this disclosure;

[0025] Figure 2 is a schematic flowchart of the process for obtaining the monitoring pressure read by the pneumoperitoneum machine according to an embodiment of this disclosure;

[0026] Figure 3 is a schematic flowchart of obtaining the pressure change rate within the first preset time period provided by an embodiment of this disclosure;

[0027] Figure 4 is a partial flowchart of the first adjustment procedure provided in an embodiment of this disclosure;

[0028] Figure 5 is a schematic flowchart of another part of the first adjustment procedure provided in the embodiments of this disclosure;

[0029] Figure 6 is a partial flowchart of the second adjustment procedure provided in an embodiment of this disclosure;

[0030] Figure 7 is a schematic flowchart of another part of the second adjustment procedure provided in an embodiment of this disclosure;

[0031] Figure 8 is a schematic diagram of the control system of an insufflator provided in an embodiment of this disclosure. Detailed Implementation

[0032] The technical solutions of this disclosure will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this disclosure, not all embodiments. Based on the embodiments of this disclosure, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this disclosure.

[0033] It will be understood by those skilled in the art that, unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure pertains. It should also be understood that terms such as those defined in general dictionaries should be understood to have the same meaning as in the context of the prior art, and should not be interpreted in an idealized or overly formal sense unless specifically defined as herein.

[0034] Those skilled in the art will understand that, unless specifically stated otherwise, the singular forms “a,” “an,” “the,” and “the” used herein may also include the plural forms. It should be further understood that the term “comprising” as used in this disclosure means the presence of the stated feature, integer, step, operation, element, and / or component, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or combinations thereof. The term “and / or” as used herein includes all or any unit and all combinations of one or more associated listed items.

[0035] Please refer to Figures 1 to 7. This disclosure provides a control method for an insufflator, including:

[0036] S100: Acquire the monitoring pressure read by the insufflator.

[0037] In this embodiment, the control method is applicable during the stage of surgery when pneumoperitoneum needs to be kept stable. If pneumoperitoneum overpressure occurs, this control method is used to restore the pneumoperitoneum to the original pressure that needs to be maintained. The first step is to obtain the monitoring pressure read by the pneumoperitoneum machine, which is actually the actual real-time pressure of the pneumoperitoneum.

[0038] S200: When the monitored pressure is greater than the first pressure threshold and the duration of maintenance is greater than or equal to the first preset duration, the pressure change rate within the first preset duration is obtained.

[0039] The first pressure threshold and the first preset duration need to be set in advance. If the pressure to be maintained by the pneumoperitoneum, i.e., the desired pressure, is X mmHg, then the first pressure threshold can be set to (X+2) mmHg, and the first preset duration can be set to 0.5 s. That is, if the difference between the monitored pressure and the desired pressure of the pneumoperitoneum exceeds 2 mmHg, and this difference remains above 2 mmHg for 0.5 s, or if the monitored pressure of the pneumoperitoneum is greater than (X+2) mmHg and remains above 0.5 s, then the rate of pressure change within those 0.5 s needs to be calculated. Of course, setting the first pressure threshold to (X+2) mmHg and the first preset duration to 0.5 s is just an example for ease of understanding and not a limitation on their values. Specific values ​​can be assigned based on the actual changes in pneumoperitoneum pressure during the surgery. This first pressure threshold is greater than the desired pressure, but definitely less than the maximum pressure that the human abdominal cavity can withstand.

[0040] S300: If the pressure change rate is greater than the first pressure change rate threshold, it is determined to be an expected fluctuation, and the first adjustment procedure is initiated.

[0041] S400: If the pressure change rate is less than or equal to the first pressure change rate threshold, it is determined to be a continuous change, and the second adjustment procedure is initiated.

[0042] Because the expected fluctuations caused by manual compression can lead to a sudden increase in intra-abdominal pressure, this is significantly different from the rate of pressure change caused by other factors that result in continuous overpressure. Therefore, it is necessary to pre-set a first pressure change rate threshold, such as 2 mmHg / s. If the pressure change rate is greater than 2 mmHg / s, it is judged as an expected fluctuation; if the pressure change rate is less than or equal to 2 mmHg / s, it is judged as a continuous change. The causes of anticipated fluctuations in overpressure and continuous changes in overpressure differ. The causes of anticipated fluctuations in overpressure are relatively clear, and the pneumoperitoneum needs to quickly return to the desired pressure after these fluctuations. Overpressure caused by continuous changes can have various causes. One is changes in the patient themselves, such as decreased abdominal wall compliance (after pneumoperitoneum is established, as the surgery progresses, the abdominal wall gradually adapts to the pneumoperitoneum pressure, its elastic recoil force weakens, leading to a decrease in the relative space within the abdominal cavity, thus causing a slow increase in pneumoperitoneum pressure), or unpredictable conditions such as edema or congestion of abdominal organs. Another cause is performance issues with the pneumoperitoneum machine; for example, if there are bends or blockages in the gas delivery pipes, the pneumoperitoneum pressure will also rise slowly. By more precisely distinguishing the causes or situations of overpressure through the rate of pressure change, and then using different adjustment procedures, the problem of high wear and tear on equipment components can be largely avoided. Furthermore, targeted adjustments can be made to anticipated fluctuations in overpressure, avoiding the problem of prolonged time for the equipment to stabilize pneumoperitoneum pressure after anticipated fluctuations, thus improving surgical efficiency and reducing equipment wear and tear.

[0043] In this embodiment, step S100 specifically includes:

[0044] S101: Obtain the sampling pressure and the time when the sampling pressure is taken;

[0045] S102: Take the average value of the sampling pressure at every N consecutive sampling times as the monitoring pressure, where N≥1.

[0046] Generally speaking, the sampling pressure of the device is very high frequency, for example, pressure sampling is performed every 25ms. However, the monitoring pressure of pneumoperitoneum is to be displayed for doctors to observe. The average value of the sampling pressure at every N consecutive sampling time is taken as the monitoring pressure, N≥1. If N is 4, the monitoring pressure of pneumoperitoneum is the average value of the sampling pressure within 100ms.

[0047] The advantages of this method are twofold. First, it reduces noise interference. While high-frequency sampling can capture rapid pressure changes, it is also susceptible to various noises, such as electromagnetic interference in the surgical environment. These noises cause instantaneous fluctuations in the sampled pressure values, making the monitored pressure data less smooth and stable. By averaging N consecutive sampled pressure values, these instantaneous noise interferences can be effectively filtered out. When random noise is present, it partially cancels out each other in multiple sampled values, making the final monitored pressure closer to the true pneumoperitoneum pressure level and providing more accurate monitoring results. Second, it provides a stable and reliable reference. During surgery, doctors need to use pneumoperitoneum pressure to judge the safety and effectiveness of the surgical procedure. Frequent fluctuations in monitored pressure can make it difficult for doctors to make judgments and may even lead to misjudgments. The monitored pressure after averaging is more stable, providing doctors with a reliable reference and helping them better control the surgical process. It also helps reduce unnecessary adjustments to the equipment. The averaged monitored pressure more accurately reflects the overall state of the pneumoperitoneum, making adjustments to the pneumoperitoneum machine more reasonable and necessary, and reducing unnecessary wear and tear on the equipment.

[0048] In this embodiment, step S200 specifically includes:

[0049] S201: Within the first preset time period, including M values ​​of the monitored pressure, the difference between adjacent monitored pressures is divided by the interval between adjacent monitored pressures to obtain M-1 pressure change rates.

[0050] S202: Take the maximum value among the M-1 pressure change rates as the pressure change rate within the first preset time period.

[0051] In this embodiment, taking the maximum value among M-1 pressure change rates as the pressure change rate within the first preset duration is primarily to ensure the sensitivity of pressure changes and more accurately determine the type of pressure change, where M≥2. By taking the maximum value, it can be ensured that even rapid pressure changes occurring within a short period of time can be captured in a timely manner. If it is overpressure within the expected fluctuation range, such as when the monitored pressure exceeds the first pressure threshold and persists for the first preset duration, but the monitored pressure does not continuously increase within the first preset duration and may become flat at a certain moment, taking the maximum value can avoid missing important information that might be missed by taking the average or a smaller value. During surgery, the maximum value can provide the most direct and obvious pressure change information, reducing misjudgments caused by insignificant pressure changes and ensuring more accurate and effective adjustment of the pneumoperitoneum machine.

[0052] In this embodiment, step S300 specifically includes:

[0053] S301: When the monitored pressure is less than or equal to the second pressure threshold and the duration of maintenance is greater than the second preset duration, the first pressure reduction procedure is initiated.

[0054] Optionally, the first depressurization procedure includes: opening the first pressure relief valve.

[0055] S302: When the monitored pressure is greater than the second pressure threshold, the second pressure reduction procedure is initiated.

[0056] Optionally, the second depressurization procedure includes: opening the first pressure relief valve and the second pressure relief valve.

[0057] In this embodiment, a second pressure threshold and a second preset duration need to be preset. The second pressure threshold is greater than the first pressure threshold, and the second preset duration is greater than the first preset duration. For example, if the first pressure threshold is set to (X+2) mmHg, then the second pressure threshold can be set to (X+4) mmHg. The value of the second pressure threshold is closer to the maximum pressure value that the pneumoperitoneum can withstand, but it must be less than the maximum pressure value. The first preset duration is for faster detection of changes, while the second preset duration is to take into account fluctuations caused by very short-term pressing, and to avoid overreaction of the device. For example, if the second preset duration is set to 3 seconds, and the overpressure of the pneumoperitoneum is greater than the first pressure threshold but less than the second pressure threshold, and the duration is only 2 seconds, which is less than the second preset duration, then the device does not need to activate the depressurization program. This is because such short-term, small-range overpressure will not cause much damage to the human body, and the overpressure phenomenon will also disappear after the pressing is stopped. Moreover, because the device does not perform depressurization, the pneumoperitoneum will quickly return to its original pressure level, which also reduces the overreaction of the device, reduces the wear and tear of parts, and reduces the additional noise generated by frequent valve opening and closing.

[0058] When the monitored pressure is less than or equal to the second pressure threshold and the duration exceeds the second preset duration, the first decompression procedure is initiated. This is to ensure that even if the overpressure range is small, prolonged exposure could still cause injury, thus requiring decompression. When the monitored pressure exceeds the second pressure threshold, it indicates that the pneumoperitoneum pressure is closer to the critical value. In this case, decompression is necessary to prevent irreversible damage caused by excessively high pneumoperitoneum pressure. These two situations are different, therefore the decompression procedures used are also different. The first decompression procedure only opens the first pressure relief valve, while the second decompression procedure requires opening both the first and second pressure relief valves. The gas flow rate of the first pressure relief valve is less than that of the second pressure relief valve, therefore the decompression rate of the first pressure relief valve is less than that of the second pressure relief valve. The first decompression procedure reduces pressure without excessive gas leakage, allowing for faster stabilization of the pneumoperitoneum pressure after compressions. The second decompression procedure maximizes surgical safety. Overall, this makes pneumoperitoneum stabilization more efficient and less wasteful.

[0059] In this embodiment, step S300 specifically includes:

[0060] S311: When the monitored pressure is less than the second pressure threshold and the duration of maintenance is less than the second preset duration, a first prompt signal is issued.

[0061] S312: When the monitored pressure is less than or equal to the second pressure threshold and the duration of maintenance is greater than the second preset duration, a second prompt signal is issued.

[0062] S313: When the monitored pressure is greater than the second pressure threshold, a third prompt signal is issued.

[0063] In this embodiment, considering that doctors cannot intuitively grasp the dynamics of the device by only looking at the monitoring pressure during surgery, which could become a hidden danger during the operation, it is necessary to add prompt signals. The prompt signals can appear in the form of sound, light, or text, or even a combination thereof. The first, second, and third prompt signals are all different. Taking text as an example, the first, second, and third prompt signals can be: "Expected fluctuation in progress," "Expected fluctuation timeout," and "Expected fluctuation overpressure." The prompt "Expected fluctuation in progress" means that the device has captured pressure fluctuations, such as those caused by manual pressing, but will not deflate; it is only used as a prompt. The prompt "Expected fluctuation timeout" can both prompt the doctor and indicate that the device should open the first pressure relief valve to release pressure. When the pressure is released to the level of the monitored pressure, the first pressure relief valve will be closed. The prompt "Expected fluctuation overpressure" can both prompt the doctor and indicate that the device should open both the first and second pressure relief valves to release pressure. When the pressure is released to the level of the monitored pressure, both the first and second pressure relief valves will be closed.

[0064] In this embodiment, step S400 specifically includes:

[0065] S401: When the monitored pressure is less than or equal to the second pressure threshold, start the third pressure reduction procedure and start the first counting procedure.

[0066] Optionally, the third depressurization procedure includes: opening the first pressure relief valve.

[0067] Optionally, the first counting procedure includes: if the number of times the third buck procedure is started exceeds the first preset number within a third preset time period, a first warning signal is issued.

[0068] S402: When the monitored pressure is greater than the second pressure threshold, start the fourth pressure reduction procedure and start the second counting procedure.

[0069] Optionally, the fourth pressure reduction procedure includes: opening the first pressure relief valve and the second pressure relief valve.

[0070] Optionally, the second counting procedure includes: if the number of times the fourth buck procedure is started exceeds the second preset number within the fourth preset time period, a second warning signal is issued.

[0071] In this embodiment, since the cause of the continuously fluctuating pressure increase is unknown, it is safer to use the comparison between the monitored pressure and the second pressure threshold as the basis for deciding which pressure reduction procedure to execute. The third and fourth pressure reduction procedures are different. At the same time, since the cause of the pressure increase is unknown but it continues to rise, in addition to depressurization, it is also necessary to consider whether the continuous pressure increase is caused by the patient's own condition or by equipment malfunction.

[0072] Therefore, in addition to opening the first pressure relief valve when the monitored pressure is less than or equal to the second pressure threshold and closing it when the monitored pressure is less than the first pressure threshold, and opening both the first and second pressure relief valves when the monitored pressure is greater than the second pressure threshold and closing them when the monitored pressure is less than the first pressure threshold, it is also necessary to consider activating the counting program. This is because pressure changes caused by the patient's own variations are limited. If, within a certain timeframe, the number of times the same continuous change occurs exceeds the set number—for example, if the third pressure reduction program is activated 5 times within the next 10 minutes of surgery—it indicates a possible problem with the equipment, triggering a warning signal to alert the doctor to address the potential issue. The third preset duration of 10 minutes and the first preset count of 5 times are merely examples for ease of understanding and not restrictions on their values. The third and fourth preset durations can be the same or different, and the first and second preset counts can also be the same or different. Reasonable values ​​can be set based on the actual surgical procedure.

[0073] In this embodiment, step S400 specifically further includes:

[0074] S411: When the monitored pressure is less than or equal to the second pressure threshold, a fourth alert signal is issued.

[0075] S412: When the monitored pressure is greater than the second pressure threshold, a fifth warning signal is issued.

[0076] In this embodiment, the fourth and fifth prompt signals are different, mainly to ensure that doctors can more intuitively grasp the dynamics of the equipment during the operation. The prompt signals can also appear in the form of sound, light, text or images, and can even be combined.

[0077] Please refer to Figure 8. This embodiment of the present disclosure provides a pneumoperitoneum stabilization control system, including: a pressure monitoring module configured to acquire the monitoring pressure read by the pneumoperitoneum machine and determine whether the monitoring pressure is greater than a first pressure threshold and the duration of maintenance is greater than or equal to a first preset duration; a pressure change rate calculation module connected to the pressure monitoring module, configured to acquire the pressure change rate within the first preset duration when the pressure monitoring module determines that the monitoring pressure is greater than the first pressure threshold and the duration of maintenance is greater than or equal to the first preset duration; a judgment module connected to the pressure change rate calculation module, configured to determine whether the pressure change is expected fluctuation or continuous change based on the pressure change rate calculated by the pressure change rate calculation module; when the pressure change rate is greater than the first pressure change rate threshold, it is determined to be expected fluctuation; when the pressure change rate is less than or equal to the first pressure change rate threshold, it is determined to be continuous change; and an adjustment control module connected to the judgment module, activated when the judgment module determines that the pressure is expected fluctuation and executes a first adjustment procedure; activated when the judgment module determines that the pressure is continuous change and executes a second adjustment procedure to keep the pneumoperitoneum pressure stable.

[0078] In this embodiment, a pressure monitoring module is used to monitor the pressure inside the pneumoperitoneum in real time and determine whether the monitored pressure is greater than a first pressure threshold and whether the duration of the pressure is greater than or equal to a first preset duration. Based on the judgment result of the pressure monitoring module, the pressure change rate calculation module calculates the pressure change rate within the first preset duration. The judgment module determines whether the pressure change is expected fluctuation or continuous change based on the pressure change rate calculated by the pressure change rate calculation module. The adjustment control module selects different adjustment programs according to different causes of overpressure to keep the pneumoperitoneum pressure stable. By distinguishing the causes or situations of overpressure more finely through the pressure change rate, and thus adopting different adjustment programs, the problem of high wear and tear on equipment components can be largely avoided. Moreover, targeted adjustments can be made for expected fluctuations in overpressure, avoiding the problem of long time for the equipment to stabilize the pneumoperitoneum pressure after expected fluctuations, improving surgical efficiency and reducing equipment wear and tear.

[0079] The functions of each module in the control system of the pneumoperitoneum machine described in this embodiment are the same as the steps of the control method of the pneumoperitoneum machine described above. Therefore, for details not covered in this embodiment, please refer to the detailed description of the control method of the pneumoperitoneum machine and Figures 1 to 7 above, which will not be repeated here.

[0080] This disclosure also provides a control device for an insufflator, including a processor, a memory, and a computer program stored in the memory and executable on the processor. When the computer program is executed, it implements the method steps in the control method for the insufflator described above.

[0081] By using a computer program stored in memory and running on a processor, the cause or situation of overpressure can be more clearly distinguished by the rate of pressure change. Different adjustment programs can then be adopted, avoiding the problems of high wear and tear on equipment parts and the long time required to stabilize pneumoperitoneum pressure after expected fluctuations. This improves surgical efficiency and reduces equipment wear and tear.

[0082] The method steps implemented by the computer program in the control device of the pneumoperitoneum machine described in this embodiment correspond to the steps of the control method of the pneumoperitoneum machine described above. For details not covered in this embodiment, please refer to the detailed description of the control method of the pneumoperitoneum machine described above and Figures 1 to 7, which will not be repeated here.

[0083] This disclosure also provides an insufflator, including a control device for the insufflator; a pressure sensor configured to measure insufflator pressure; a first pressure relief valve and a second pressure relief valve configured to control insufflator pressure relief; the control device for the insufflator is electrically connected to the pressure sensor, the first pressure relief valve and the second pressure relief valve.

[0084] In this embodiment, the control device of the pneumoperitoneum machine relies on a pressure sensor to monitor and obtain the pneumoperitoneum pressure in real time, thereby making judgments and controlling the first pressure relief valve and the second pressure relief valve. This ensures that the pneumoperitoneum pressure remains stable while avoiding the problems of high wear and tear on equipment parts and long time to stabilize the pneumoperitoneum pressure after expected fluctuations.

[0085] Optionally, the insufflator also includes a notification structure configured to issue first to fifth notification signals and first and second warning signals. The notification structure is controlled by the insufflator's control unit, allowing doctors to better monitor the equipment's dynamics and promptly eliminate potential safety hazards. The notification structure can emit any one or a combination of sound, light, text, or images.

[0086] Similarly, for details not covered in this embodiment, please refer to the aforementioned control method, system, device and Figures 1 to 8 for a detailed description, which will not be repeated here.

[0087] Those skilled in the art will understand that the steps, measures, and schemes in the various operations, methods, and processes discussed in this disclosure can be alternated, modified, combined, or deleted. Furthermore, other steps, measures, and schemes in the various operations, methods, and processes discussed in this disclosure can also be alternated, modified, rearranged, decomposed, combined, or deleted. Furthermore, steps, measures, and schemes in the prior art that are similar to those in the various operations, methods, and processes disclosed in this disclosure can also be alternated, modified, rearranged, decomposed, combined, or deleted.

[0088] In the description of this disclosure, it should be understood that the use of terms such as “center,” “upper,” “lower,” “front,” “back,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer” to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings is merely for the convenience of describing this disclosure and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this disclosure.

[0089] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this disclosure, unless otherwise stated, "a plurality of" means two or more.

[0090] In the description of this disclosure, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0091] In the description of this specification, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0092] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure, and are not intended to limit them. Although this disclosure has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this disclosure. Industrial applicability

[0093] By adopting the above scheme, the causes or situations of overpressure can be more clearly distinguished by the rate of pressure change, and different adjustment procedures can be adopted. This can largely avoid the problem of high wear and tear on equipment parts, and can also make targeted adjustments to the expected fluctuations in overpressure. This avoids the problem of the equipment taking a long time to stabilize the pneumoperitoneum pressure after the expected fluctuations, so that the pneumoperitoneum pressure can be stabilized quickly, improving surgical efficiency and reducing equipment wear and tear.

Claims

1. A control method of a pneumoperitoneum machine, characterized by, Includes the following steps: Obtain the monitoring pressure read by the pneumoperitoneum machine; When the monitored pressure is greater than the first pressure threshold and the duration of maintenance is greater than or equal to the first preset duration, the pressure change rate within the first preset duration is obtained. If the rate of pressure change is greater than the first rate of pressure change threshold, it is determined to be an expected fluctuation, and the first adjustment procedure is initiated. If the pressure change rate is less than or equal to the first pressure change rate threshold, it is determined to be a continuous change, and the second adjustment procedure is initiated.

2. The control method of a pneumoperitoneum machine according to claim 1, characterized in that, The monitoring pressure obtained from the pneumoperitoneum machine includes: Obtain the sampling pressure and the time when the sampling pressure is taken; The average value of the sampling pressure at every N consecutive sampling times is taken as the monitoring pressure, where N≥1.

3. The control method of a pneumoperitoneum machine according to claim 1, characterized by, The step of obtaining the pressure change rate within the first preset time period includes: Within the first preset time period, there are M values ​​of the monitored pressure. The difference between adjacent monitored pressures is divided by the interval between adjacent monitored pressures to obtain M-1 pressure change rates. The maximum value among the M-1 pressure change rates is taken as the pressure change rate within the first preset time period.

4. The control method of a pneumoperitoneum machine according to claim 1, characterized by, The first adjustment procedure includes: When the monitored pressure is less than or equal to the second pressure threshold and the duration of maintenance is greater than the second preset duration, the first pressure reduction procedure is initiated. When the monitored pressure exceeds the second pressure threshold, the second pressure reduction procedure is initiated.

5. The control method of a pneumoperitoneum machine according to any one of claims 1 to 4, characterized in that, The first adjustment procedure also includes: When the monitored pressure is less than the second pressure threshold and the duration of maintenance is less than the second preset duration, a first prompt signal is issued; When the monitored pressure is less than or equal to the second pressure threshold and the duration of the pressure is greater than the second preset duration, a second prompt signal is issued. When the monitored pressure exceeds the second pressure threshold, a third alert signal is issued.

6. The control method for the pneumoperitoneum machine according to claim 4, characterized in that, The first pressure reduction procedure includes: opening the first pressure relief valve.

7. The control method for the pneumoperitoneum machine according to claim 4, characterized in that, The second pressure reduction procedure includes: opening the first pressure relief valve and the second pressure relief valve.

8. The control method of a pneumoperitoneum machine according to any one of claims 1 to 7, characterized in that, The second adjustment procedure includes: When the monitored pressure is less than or equal to the second pressure threshold, the third pressure reduction procedure is initiated, and the first counting procedure is also initiated. When the monitored pressure exceeds the second pressure threshold, the fourth pressure reduction procedure is initiated, and the second counting procedure is also initiated.

9. The control method of a pneumoperitoneum machine according to any one of claims 1 to 8, characterized in that, The second adjustment procedure also includes: When the monitored pressure is less than or equal to the second pressure threshold, a fourth warning signal is issued; When the monitored pressure exceeds the second pressure threshold, a fifth alert signal is issued.

10. The control method for the pneumoperitoneum machine according to claim 8, characterized in that, The third pressure reduction procedure includes: opening the first pressure relief valve.

11. The control method for the pneumoperitoneum machine according to claim 8, characterized in that, The fourth pressure reduction procedure includes: opening the first pressure relief valve and the second pressure relief valve.

12. The control method for the pneumoperitoneum machine according to claim 8, characterized in that, The first counting procedure includes: if the number of times the third buck program is started exceeds the first preset number within a third preset time period, a first warning signal is issued.

13. The control method for the pneumoperitoneum machine according to claim 8, characterized in that, The second counting procedure includes: if the number of times the fourth bucking procedure is started exceeds the second preset number within a fourth preset time period, a second warning signal is issued.

14. A control system for a pneumoperitoneum machine, characterized in that include: The pressure monitoring module is configured to acquire the monitoring pressure read by the pneumoperitoneum machine and determine whether the monitoring pressure is greater than a first pressure threshold and whether the duration of the monitoring is greater than or equal to a first preset duration. The pressure change rate calculation module is connected to the pressure monitoring module. When the pressure monitoring module determines that the monitored pressure is greater than the first pressure threshold and the duration of maintenance is greater than or equal to the first preset duration, it is configured to obtain the pressure change rate within the first preset duration. The judgment module is connected to the pressure change rate calculation module and is configured to determine whether the pressure change rate is expected or continuous based on the pressure change rate calculated by the pressure change rate calculation module; when the pressure change rate is greater than a first pressure change rate threshold, it is judged as expected fluctuation; when the pressure change rate is less than or equal to the first pressure change rate threshold, it is judged as continuous change. The adjustment control module is connected to the judgment module. When the judgment module determines that the fluctuation is expected, it is activated to execute the first adjustment procedure; when the judgment module determines that the change is continuous, it is activated to execute the second adjustment procedure.

15. A control device for a pneumoperitoneum machine, characterized in that It includes a processor, a memory, and a computer program stored in the memory and executable on the processor, wherein the computer program, when executed, implements the control method steps of the insufflator as described in any one of claims 1 to 13.

16. A pneumostachion, characterized in that Includes the control device for the pneumoperitoneum machine as described in claim 15; A pressure sensor configured to measure pneumoperitoneum pressure; The first and second pressure relief valves are configured to control the pressure relief of the pneumatic abdomen. The control device of the pneumoperitoneum machine is electrically connected to the pressure sensor, the first pressure relief valve, and the second pressure relief valve.

Images