Pneumoperitoneum machine safety alarm control method, system and device and storage medium

Abstract

The invention discloses a safety alarm control method, system and device for a pneumoperitoneum machine and a storage medium, and the method comprises the steps: monitoring the output pressure and gas flow rate of the pneumoperitoneum machine in a set time period in real time, and obtaining the real-time output pressure difference of the pneumoperitoneum machine according to the output pressure; when the pneumoperitoneum machine leaks gas, the leakage level of the pneumoperitoneum machine in the set time period is determined according to the real-time output pressure difference and the gas flow speed; and outputting a matched alarm signal according to the leakage level, and supplementing air to the pneumoperitoneum machine according to a preset air supplementing strategy matched with the leakage level. According to the invention, targeted air supply is carried out based on the leakage level, the safety identification and adjustment capability with higher intelligent degree and higher precision is provided when the pneumoperitoneum machine is under-voltage, and the safety problem of the pneumoperitoneum machine can be fundamentally solved.

Description

Technical Field

[0001] The present invention relates to the technical field of medical equipment, and in particular to a method, system, device and storage medium for controlling the safety alarm of a pneumoperitoneum machine. Background Art

[0002] Laparoscopic surgery is a minimally invasive surgery that uses related surgical instruments and a laparoscope with a micro camera. It has the advantages of small surgical incision, few complications, fast recovery, and low harm to patients. The pneumoperitoneum machine is a commonly used surgical instrument. With the development of laparoscopic surgery, the requirements for the safety alarm mechanism of the pneumoperitoneum machine are getting higher and higher.

[0003] Most traditional insufflators use simple alarm control and lack intelligent and high-precision safety identification and adjustment capabilities. For example, some insufflators can only maintain a basic pneumoperitoneum state, but in a complex surgical environment, they often cannot cope with emergencies well, especially when the insufflator is under-pressurized. Traditional insufflators only alarm for under-pressure and replenish the insufflator according to the set gas replenishment volume to solve the under-pressure problem. However, during the gas replenishment process of the under-pressure insufflator, the insufflator may leak gas due to factors such as large gas leakage, poor pipe connection, and user selection of continuous suction operation. Traditional insufflators can only identify under-pressure but cannot know that the insufflator has gas leakage. In the case of a leak in the insufflator, if the traditional gas replenishment method is still used, either the gas replenishment is always insufficient so that the insufflator cannot quickly reach a balanced state, or the gas replenishment is too much and the equipment will be over-pressurized instantly. At the same time, the leakage of the insufflator will lead to medical accidents such as surgical failure and safety accidents such as gas poisoning and fire.

[0004] Therefore, the traditional insufflator alarm mechanism cannot provide higher intelligence and higher precision safety identification and adjustment capabilities when the insufflator is under-pressurized, and cannot identify the leakage level when the insufflator is under-pressurized, resulting in the inability to fundamentally solve the safety problems of the insufflator. Summary of the invention

[0005] In view of this, the present invention provides a method, system, device and storage medium for controlling the safety alarm of an insufflator, so as to solve the problem that the existing safety alarm mechanism of an insufflator cannot provide a higher degree of intelligence and a higher degree of precision in safety identification and adjustment capabilities when the insufflator is under-pressurized, and cannot identify the leakage level when the insufflator is under-pressurized, resulting in the inability to fundamentally solve the safety problem of the insufflator.

[0006] The present invention provides a method for controlling a safety alarm of a pneumoperitoneum machine, the method comprising:

[0007] Real-time monitoring of the output pressure and gas flow rate of the pneumoperitoneum machine within a set time period, and obtaining the real-time output pressure difference of the pneumoperitoneum machine according to the output pressure;

[0008] When gas leakage occurs in the insufflator, determining the leakage level of the insufflator within the set time period according to the real-time output pressure difference and the gas flow rate;

[0009] According to the leakage level, a matching alarm signal is output, and the insufflating device is supplied with gas according to a preset gas supply strategy matching the leakage level; The real-time output pressure difference is the difference between the set pressure of the insufflator and the output pressure; wherein, when the insufflator has a gas leak, the output pressure is less than the set pressure of the insufflator; Determining the leakage level of the pneumoperitoneum machine within the set time period according to the real-time output pressure difference and the gas flow rate includes:

[0010] When the gas flow rate is less than a preset flow rate value, determining the leakage level of the pneumoperitoneum machine within the set time period according to the real-time output pressure difference according to a first determination method;

[0011] When the gas flow rate is greater than or equal to the preset flow rate value, the leakage level of the pneumoperitoneum machine within the set time period is determined according to the real-time output pressure difference in accordance with a second determination method.

[0012] Optionally, when the gas flow rate is less than a preset flow rate value, determining the leakage level of the pneumoperitoneum machine within the set time period according to the real-time output pressure difference according to a first determination method includes:

[0013] When the real-time output pressure difference is continuously less than the first pressure difference threshold within the first preset time, determining that the segmented leakage level of the pneumoperitoneum machine within the first preset time is the first level; wherein the first pressure difference threshold is greater than 0, and the set time period includes at least one continuous first preset time;

[0014] When the real-time output pressure difference is continuously less than the second pressure difference threshold and greater than or equal to the first pressure difference threshold within the first preset time, determining that the segmented leakage level of the pneumoperitoneum machine within the first preset time is the second level;

[0015] When the real-time output pressure difference is continuously less than the third pressure difference threshold and greater than or equal to the second pressure difference threshold within the first preset time, determining that the segmented leakage level of the pneumoperitoneum machine within the first preset time is the third level;

[0016] When the real-time output pressure difference is continuously greater than or equal to the third pressure difference threshold within the first preset time, determining that the segmented leakage level of the pneumoperitoneum machine within the first preset time is the fourth level;

[0017] According to the same method, the segmented leakage level of the pneumoperitoneum machine in all the first preset times of the set time period is determined in real time; and the leakage level of the pneumoperitoneum machine in the set time period is determined according to the segmented leakage level in all the first preset times;

[0018] Among them, the first pressure difference threshold, the second pressure difference threshold and the third pressure difference threshold increase in sequence; the gas leakage levels represented by the first level, the second level, the third level and the fourth level increase in sequence.

[0019] Optionally, the priorities of the first level, the second level, the third level and the fourth level are increased in sequence;

[0020] When it is determined that the segmented leakage levels of the pneumoperitoneum machine in all the first preset times in the set time period include only one of the first level, the second level, the third level, and the fourth level, determining the leakage level of the pneumoperitoneum machine in the set time period according to the segmented leakage levels in all the first preset times includes:

[0021] Among all the segmented leakage levels within the first preset time, directly determining the segmented leakage level as the leakage level of the pneumoperitoneum machine within the set time period;

[0022] When it is determined that the segmented leakage levels of the pneumoperitoneum machine in all the first preset times in the set time period include at least two of the first level, the second level, the third level, and the fourth level, determining the leakage level of the pneumoperitoneum machine in the set time period according to the segmented leakage levels in all the first preset times includes:

[0023] Among all the segmented leakage levels within the first preset time, the segmented leakage level with the highest priority is determined as the leakage level of the pneumoperitoneum machine within the set time period.

[0024] Optionally, when the gas flow rate is greater than or equal to the preset flow rate value, determining the leakage level of the pneumoperitoneum machine within the set time period according to the real-time output pressure difference according to the second determination method includes:

[0025] When the real-time output pressure difference is continuously less than the first pressure difference threshold value within the second preset time, and increases to the fourth pressure difference threshold value after the second preset time and the duration is maintained for the third preset time, it is determined that the segmented leakage level of the pneumoperitoneum machine within the fourth preset time is the first level; wherein the first pressure difference threshold value is greater than 0, the fourth preset time is the sum of the time between the consecutive second preset time and the third preset time, and the set time period includes at least one consecutive fourth preset time;

[0026] When the real-time output pressure difference is continuously greater than or equal to the first pressure difference threshold and less than the second pressure difference threshold within the second preset time, and increases to the fifth pressure difference threshold after the second preset time and lasts for the third preset time, it is determined that the segmented leakage level of the pneumoperitoneum machine within the fourth preset time is the second level;

[0027] When the real-time output pressure difference is continuously greater than or equal to the second pressure difference threshold and less than the third pressure difference threshold within the second preset time, and increases to the sixth pressure difference threshold after the second preset time and lasts for the third preset time, it is determined that the segmented leakage level of the pneumoperitoneum machine within the fourth preset time is the third level;

[0028] When the real-time output pressure difference is continuously greater than or equal to the third pressure difference threshold within the second preset time, and increases to the seventh pressure difference threshold after the second preset time and lasts for the third preset time, it is determined that the segmented leakage level of the pneumoperitoneum machine within the fourth preset time is the fourth level;

[0029] According to the same method, the segmented leakage level of the pneumoperitoneum machine in all the fourth preset times of the set time period is determined in real time; and the leakage level of the pneumoperitoneum machine in the set time period is determined according to the segmented leakage level in all the fourth preset times;

[0030] Among them, the first pressure difference threshold, the second pressure difference threshold and the third pressure difference threshold increase in sequence, the fourth pressure difference threshold is greater than the first pressure difference threshold and less than the second pressure difference threshold, the fifth pressure difference threshold is greater than the second pressure difference threshold and less than the third pressure difference threshold, the sixth pressure difference threshold is greater than the third pressure difference threshold, and the seventh pressure difference threshold is greater than the sixth pressure difference threshold; the gas leakage levels represented by the first level, the second level, the third level and the fourth level increase in sequence.

[0031] Optionally, when the gas flow rate is greater than or equal to the preset flow rate value, determining the leakage level of the pneumoperitoneum machine within the set time period according to the real-time output pressure difference according to the second determination method includes:

[0032] When the real-time output pressure difference is continuously less than the first pressure difference threshold within the second preset time and remains unchanged within the third preset time after the second preset time, it is determined that the segmented leakage level of the pneumoperitoneum machine within the fourth preset time is the first level; wherein the first pressure difference threshold is greater than 0, the fourth preset time is the sum of the time between the consecutive second preset time and the third preset time, and the set time period includes at least one consecutive fourth preset time;

[0033] When the real-time output pressure difference is continuously greater than or equal to the first pressure difference threshold and less than the second pressure difference threshold within the second preset time, and remains unchanged within the third preset time after the second preset time, it is determined that the segmented leakage level of the pneumoperitoneum machine within the fourth preset time is the second level;

[0034] When the real-time output pressure difference is continuously greater than or equal to the second pressure difference threshold and less than the third pressure difference threshold within the second preset time, and remains unchanged within the third preset time after the second preset time, it is determined that the segmented leakage level of the pneumoperitoneum machine within the fourth preset time is the third level;

[0035] When the real-time output pressure difference is continuously greater than or equal to the third pressure difference threshold value within the second preset time and remains unchanged within the third preset time after the second preset time, determining that the segmented leakage level of the pneumoperitoneum machine within the fourth preset time is the fourth level;

[0036] According to the same method, the segmented leakage level of the pneumoperitoneum machine in all the fourth preset times of the set time period is determined in real time; and the leakage level of the pneumoperitoneum machine in the set time period is determined according to the segmented leakage level in all the fourth preset times;

[0037] Among them, the first pressure difference threshold, the second pressure difference threshold and the third pressure difference threshold increase in sequence; the gas leakage levels represented by the first level, the second level, the third level and the fourth level increase in sequence.

[0038] Optionally, the priorities of the first level, the second level, the third level and the fourth level are increased in sequence;

[0039] When it is determined that the segmented leakage levels of the pneumoperitoneum machine in all the fourth preset times in the set time period include only one of the first level, the second level, the third level, and the fourth level, determining the leakage level of the pneumoperitoneum machine in the set time period according to the segmented leakage levels in all the fourth preset times includes:

[0040] Among all the segmented leakage levels within the fourth preset time, directly determining the segmented leakage level as the leakage level of the pneumoperitoneum machine within the set time period;

[0041] When it is determined that the segmented leakage levels of the pneumoperitoneum machine in all the fourth preset times of the set time period include at least two of the first level, the second level, the third level, and the fourth level, determining the leakage level of the pneumoperitoneum machine in the set time period according to the segmented leakage levels in all the fourth preset times includes:

[0042] Among all the segmented leakage levels within the fourth preset time, the segmented leakage level with the highest priority is determined as the leakage level of the pneumoperitoneum machine within the set time period.

[0043] Optionally, outputting a matching alarm signal according to the leakage level, and replenishing gas to the pneumoperitoneum machine according to a preset gas replenishment strategy matching the leakage level, includes:

[0044] When it is determined that the leakage level of the pneumoperitoneum machine within the set time period is the first level, a first alarm signal is output, and a PID control method is adopted to replenish gas to the pneumoperitoneum machine according to a first gas replenishment strategy;

[0045] When it is determined that the leakage level of the pneumoperitoneum machine within the set time period is the second level, a second alarm signal is output, and the PID control method is adopted to replenish gas to the pneumoperitoneum machine according to a second gas replenishment strategy;

[0046] When it is determined that the leakage level of the pneumoperitoneum machine within the set time period is the third level, a third alarm signal is output, and the PID control method is adopted to replenish gas to the pneumoperitoneum machine according to the third gas replenishment strategy;

[0047] When it is determined that the leakage level of the insufflator within the set time period is the fourth level, a fourth alarm signal is output, and the insufflator is inflated with gas according to the set gas inflating amount.

[0048] Optionally, when gas leakage occurs in the pneumoperitoneum machine, before determining the leakage level of the pneumoperitoneum machine within the set time period according to the real-time output pressure difference and the gas flow rate, the method further includes:

[0049] Whether the insufflator is under-pressure is determined according to the real-time output pressure difference.

[0050] Optionally, determining whether the pneumoperitoneum machine has an underpressure phenomenon according to the real-time output pressure difference includes:

[0051] When the real-time output pressure difference is continuously less than the eighth pressure difference threshold and lasts for more than the fifth preset time, it is determined that the insufflator is under-pressure, a fifth alarm signal is output, and the insufflator is controlled to perform gas replenishment; otherwise, it is determined that the insufflator is not under-pressure.

[0052] Optionally, when it is determined that the pneumoperitoneum machine has an underpressure phenomenon, a fifth alarm signal is output, and the pneumoperitoneum machine is controlled to perform gas replenishment, the method further includes:

[0053] Whether gas leakage occurs in the insufflator is determined according to the real-time output pressure difference.

[0054] Optionally, determining whether the insufflator has gas leakage according to the real-time output pressure difference includes:

[0055] When the real-time output pressure difference is continuously less than the ninth pressure difference threshold value and the duration exceeds the sixth preset time, it is determined that the insufflator has a gas leak; otherwise, it is determined that the insufflator has no gas leak;

[0056] Wherein, the sixth preset time is greater than the fifth preset time.

[0057] In addition, the present invention also provides a pneumoperitoneum machine safety alarm control system, which is applied to the aforementioned pneumoperitoneum machine safety alarm control method, and the system comprises:

[0058] A real-time monitoring module, used to monitor the output pressure and gas flow rate of the pneumoperitoneum machine in real time within a set time period, and obtain the real-time output pressure difference of the pneumoperitoneum machine according to the output pressure;

[0059] A leakage determination module, used for determining the leakage level of the insufflator within the set time period according to the real-time output pressure difference and the gas flow rate when gas leakage occurs in the insufflator;

[0060] The alarm control module is used to output a matching alarm signal according to the leakage level, and to replenish gas to the pneumoperitoneum machine according to a preset gas replenishment strategy matching the leakage level.

[0061] In addition, the present invention also provides a safety alarm control device for a pneumoperitoneum machine, comprising:

[0062] A pressure sensor is used to monitor the output pressure of the pneumoperitoneum machine in real time within a set time period;

[0063] A flow rate sensor is used to monitor the gas flow rate of the pneumoperitoneum machine in real time within a set time period;

[0064] A controller, which is in communication connection with the pressure sensor and the flow rate sensor; and is used to obtain the real-time output pressure difference of the insufflator according to the output pressure; when gas leakage occurs in the insufflator, the leakage level of the insufflator within the set time period is determined according to the real-time output pressure difference and the gas flow rate, and a matching alarm signal and a preset gas replenishment strategy are matched;

[0065] an alarm, connected to the controller in communication, and configured to output an alarm signal matching the leakage level under the control of the controller;

[0066] and an air replenishment component, which is in communication with the controller and is used for replenishing air to the pneumoperitoneum machine according to a preset air replenishment strategy matching the leakage level under the control of the controller.

[0067] In addition, the present invention also provides a computer storage medium, which includes: at least one instruction, which implements the method steps in the aforementioned pneumoperitoneum machine safety alarm control method when the instruction is executed by the computer.

[0068] The beneficial effects of the present invention are as follows: through real-time monitoring of the output pressure and gas flow rate, the state of the insufflator can be monitored in real time, which is convenient for subsequent safety identification and safety adjustment; the real-time output pressure difference of the insufflator is obtained according to the output pressure, which is convenient for providing a judgment basis for subsequent safety identification based on the gas flow rate and the real-time output pressure difference; when a gas leak occurs in the insufflator, the leakage level corresponding to the gas leak in the insufflator can be accurately judged in combination with the real-time output pressure difference and the gas flow rate, which is convenient for the subsequent output of matching alarm signals according to different leakage levels, so as to promptly notify the user to take the same solution measures, and on the other hand, it is convenient for the subsequent selection of matching preset gas replenishment strategies according to different leakage levels to replenish gas to the insufflator, and is not limited to the traditional gas replenishment method for replenishing gas, and can replenish gas according to the actual situation of the leakage, which can enable the insufflator to quickly reach a balanced state, and will not cause instantaneous overpressure of the equipment due to excessive gas replenishment. The use of targeted gas replenishment strategies, combined with the user's solution measures, can truly solve the leakage problem of the insufflator during the gas replenishment process, and can effectively avoid medical accidents such as surgical failure caused by leakage of the insufflator, as well as safety accidents such as gas poisoning and fire;

[0069] The insufflator safety alarm control method, system, device and storage medium of the present invention provide targeted gas replenishment based on the leakage level, thereby providing a higher degree of intelligence and higher precision safety identification and adjustment capability when the insufflator is under-pressure, and can fundamentally solve the safety problem of the insufflator. BRIEF DESCRIPTION OF THE DRAWINGS

[0070] The features and advantages of the present invention will be more clearly understood by referring to the accompanying drawings, which are schematic and should not be construed as limiting the present invention in any way. In the accompanying drawings:

[0071] Figure 1 A flow chart of a method for controlling a safety alarm of a pneumoperitoneum machine in a first embodiment of the present invention is shown;

[0072] Figure 2 A flowchart showing the determination of underpressure, gas leakage and the selection of a determination method to determine the leakage level in the first embodiment of the present invention is shown;

[0073] Figure 3 A flow chart showing the leakage level determination process and the gas replenishment process under low flow rate conditions in the first embodiment of the present invention;

[0074] Figure 4A A flow chart showing the first leakage level determination process and the air replenishment control process under high flow rate conditions in the first embodiment of the present invention;

[0075] Figure 4B A flow chart showing the second leakage level determination process and the air replenishment control process under high flow rate conditions in the first embodiment of the present invention;

[0076] Figure 5 The structure diagram of a safety alarm control system of a pneumoperitoneum machine in the second embodiment of the present invention is shown;

[0077] Figure 6 The structure diagram of a safety alarm control device for a pneumoperitoneum machine in the third embodiment of the present invention is shown. DETAILED DESCRIPTION

[0078] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0079] Embodiment 1

[0080] This embodiment provides a method for controlling the safety alarm of a pneumoperitoneum machine. Figure 1As shown, the method includes:

[0081] S1: real-time monitoring of the output pressure and gas flow rate of the insufflator within a set time period, and obtaining the real-time output pressure difference of the insufflator according to the output pressure;

[0082] S2: when gas leakage occurs in the insufflator, determining the leakage level of the insufflator within the set time period according to the real-time output pressure difference and the gas flow rate;

[0083] S3: Outputting a matching alarm signal according to the leakage level, and replenishing gas to the pneumoperitoneum machine according to a preset gas replenishment strategy matching the leakage level.

[0084] In this embodiment, the state of the insufflator can be monitored in real time by monitoring the output pressure and gas flow rate in real time, which is convenient for subsequent safety identification and safety adjustment; the real-time output pressure difference of the insufflator is obtained according to the output pressure, which is convenient for providing a judgment basis for subsequent safety identification based on the gas flow rate and the real-time output pressure difference; when a gas leak occurs in the insufflator, the leakage level corresponding to the gas leak in the insufflator can be accurately judged in combination with the real-time output pressure difference and the gas flow rate. On the one hand, it is convenient to output a matching alarm signal according to different leakage levels in the future, so as to promptly notify the user to take the same solution. On the other hand, it is convenient to select a matching preset gas replenishment strategy to replenish the gas of the insufflator according to different leakage levels. It is not limited to the traditional gas replenishment method for replenishing gas, and can replenish gas according to the actual situation of the leakage, so that the insufflator can quickly reach a balanced state, and will not cause instantaneous overpressure of the equipment due to excessive gas replenishment. The use of targeted gas replenishment strategies combined with the user's solution can truly solve the leakage problem of the insufflator during the gas replenishment process, and can effectively avoid medical accidents such as surgical failure caused by leakage of the insufflator, as well as safety accidents such as gas poisoning and fire.

[0085] The insufflator safety alarm control method, system, device and storage medium of the present embodiment provide targeted gas replenishment based on the leakage level, thereby providing a higher level of intelligence and higher precision safety identification and adjustment capability when the insufflator is under-pressure, and can fundamentally solve the safety problem of the insufflator.

[0086] Each step of the insufflator safety alarm control method of this embodiment is described in detail below.

[0087] In this embodiment S1, sensors are used to monitor in real time the output pressure and gas flow rate of the pneumoperitoneum machine within a set time period (set as T). Specifically, a flow rate sensor (also called a flow sensor) is used to monitor in real time the gas flow rate, and a pressure sensor is used to monitor in real time the output pressure.

[0088] In the present embodiment S1, the real-time output pressure difference is the difference between the set pressure of the insufflator and the output pressure; wherein, when the insufflator has a gas leak, the output pressure is less than the set pressure of the insufflator.

[0089] Normally, if the insufflator is under-pressured and there is no gas leakage, the insufflator needs to perform normal gas replenishment. Through normal gas replenishment, the insufflator can reach a balanced state, that is, the output pressure of the insufflator (set as P out ) reaches the set pressure (set as P set If the insufflator is under-pressure and gas leakage occurs, the insufflator cannot reach a balanced state through normal gas replenishment, and the insufflator is usually always in an under-pressure state, that is, the output pressure P of the insufflator is out Always less than the set pressure P set At this time, it is necessary to adjust the strategy under the normal gas replenishment strategy, that is, to perform gas replenishment under the leakage state according to the method of this embodiment, so that the pneumoperitoneum machine can reach a balanced state.

[0090] In this embodiment, the real-time output pressure difference (set as P) = P set -P out When gas leakage occurs in the pneumoperitoneum machine and gas replenishment is not performed according to the method of this embodiment, P out <P set , so in the leaking state P>0.

[0091] After S1 and before S2 in this embodiment, the method further includes:

[0092] Whether the insufflator is under-pressure is determined according to the real-time output pressure difference.

[0093] By determining the above underpressure phenomenon, the insufflator can be preliminarily identified as safe, which is convenient for further determining whether the insufflator is in a leakage state, and for controlling whether the insufflator performs normal gas replenishment work or adjusts to gas replenishment work in a leakage state.

[0094] Specifically, judging whether the pneumoperitoneum machine has an underpressure phenomenon according to the real-time output pressure difference includes:

[0095] When the real-time output pressure difference is continuously less than the eighth pressure difference threshold and lasts for more than the fifth preset time, it is determined that the insufflator is under-pressure, a fifth alarm signal is output, and the insufflator is controlled to perform gas replenishment; otherwise, it is determined that the insufflator is not under-pressure.

[0096] When the real-time output pressure difference continues P is less than the eighth pressure difference threshold value p8, and the duration exceeds the fifth preset time (set as t5), indicating that the output pressure P of the pneumoperitoneum machine at this time out Failure to reach the set pressure P set , there is underpressure, and gas needs to be replenished. At the same time, the fifth alarm signal is output to notify the user in time to check the underpressure; and when the real-time output pressure difference continues P is not less than the eighth pressure difference threshold p8, or the real-time output pressure difference continues When P is less than the eighth pressure difference threshold value p8 and the duration does not exceed the fifth preset time, it is determined that the pneumoperitoneum machine is not under-pressure and does not need to issue an alarm or replenish gas.

[0097] The eighth pressure difference threshold and the fifth preset time can be preset and adjusted according to actual conditions, and the specific form of the fifth alarm signal can also be selected according to actual conditions.

[0098] In an optional embodiment, the eighth pressure difference threshold p8 is specifically 7 mmHg, the fifth preset time t5 is specifically 5s, and the fifth alarm signal is specifically a voice prompt of "pneumoperitoneum pressure is too low, gas supplement is needed, gas supplement is in progress", that is, when the real-time output pressure difference continues When P is continuously less than 7 mmHg and lasts for more than 5 seconds, a voice prompt will be issued: "Pneumoperitoneum pressure is too low, gas replenishment is needed, and gas replenishment is in progress."

[0099] After S1 and before S2 in this embodiment, when it is determined that the pneumoperitoneum machine has an underpressure phenomenon, a fifth alarm signal is output, and the pneumoperitoneum machine is controlled to perform gas replenishment, the method further includes:

[0100] Whether gas leakage occurs in the insufflator is determined according to the real-time output pressure difference.

[0101] When the insufflator is under-pressurized and needs to be replenished with gas, it may also be due to factors such as large leakage, improper pipe connection, and continuous suction operation by the user that cause gas leakage. By determining whether it is a gas leakage, it is convenient to subsequently choose whether to replenish gas according to the normal gas replenishment strategy (usually refers to the strategy of replenishing gas according to the set gas replenishment volume) or to adjust the strategy and replenish gas according to the gas replenishment strategy under the leakage state. Only when a targeted gas replenishment strategy is selected for gas replenishment can the safety problem of the insufflator be truly solved.

[0102] Specifically, judging whether the insufflator has gas leakage according to the real-time output pressure difference includes:

[0103] When the real-time output pressure difference is continuously less than the ninth pressure difference threshold value and the duration exceeds the sixth preset time, it is determined that the insufflator has a gas leak; otherwise, it is determined that the insufflator has no gas leak;

[0104] Wherein, the sixth preset time is greater than the fifth preset time.

[0105] When it is determined that the insufflator is under-pressure and the insufflator is controlled to perform gas replenishment, if there is no leakage in the insufflator, the insufflator will gradually tend to a balanced state. However, the real-time output pressure difference at this time is still continuously less than the ninth pressure difference threshold, and the duration exceeds the sixth preset time. The sixth preset time is greater than the fifth preset time. This means that when the insufflator performs normal gas replenishment, it still cannot reach a balanced state, and the output pressure is always lower than the set pressure and cannot be improved for a longer period of time. It can be determined that the insufflator has a gas leak and needs to adjust the strategy to replenish gas according to the gas replenishment strategy under the leakage state.

[0106] Similarly, the ninth pressure difference threshold and the sixth preset time of this embodiment can be preset and adjusted according to actual conditions.

[0107] In an optional embodiment, the ninth pressure difference threshold (set to p8) is specifically 5 mmHg, and the sixth preset time (set to t6) is specifically 30 seconds, that is, when the real-time output pressure difference continues When P is continuously less than 5 mmHg and lasts for more than 30 seconds, it is determined that gas leakage occurs in the insufflator, and subsequent safety identification and safety adjustment can be performed according to the steps S2 to S3 of this embodiment.

[0108] Preferably, in the present embodiment S2, determining the leakage level of the pneumoperitoneum machine within the set time period according to the real-time output pressure difference and the gas flow rate includes:

[0109] S2A: when the gas flow rate is less than a preset flow rate value, determining the leakage level of the pneumoperitoneum machine within the set time period according to the real-time output pressure difference according to the first determination method;

[0110] S2B: When the gas flow rate is greater than or equal to the preset flow rate value, the leakage level of the pneumoperitoneum machine within the set time period is determined according to the real-time output pressure difference in accordance with the second determination method.

[0111] Because the insufflator is under-pressure and performing gas replenishment, when the gas is replenished at a low flow rate, the gas flow is relatively stable and the pressure fluctuation is small. The gas state in a short time can reflect the actual leakage level, that is, the leakage level can be determined according to the first judgment method based on the current real-time output pressure difference in a short time; when the gas is replenished at a high flow rate, the gas flows rapidly and the pressure is high. The gas state in a short time cannot reflect the actual leakage level, and it is necessary to consider the gas state in a longer time and the gas fluctuation. That is, the leakage level can be determined according to the second judgment method based on the current real-time output pressure difference in a longer time. The above-mentioned determination method of matching the leakage level at different gas flow rates is more accurate and more in line with the actual working conditions of the insufflator.

[0112] The above-mentioned preset flow rate value of this embodiment can be preset and adjusted according to actual conditions. For example, in an optional embodiment, the preset flow rate value F set Specifically, it is 25L / min.

[0113] The process of determining underpressure, gas leakage and selecting a judgment method to determine the leakage level in this embodiment is as follows: Figure 2 shown.

[0114] Preferably, this embodiment S2A includes:

[0115] S2A1a: When the real-time output pressure difference is continuously less than a first pressure difference threshold within a first preset time, determining that the segmented leakage level of the pneumoperitoneum machine within the first preset time is a first level; wherein the first pressure difference threshold is greater than 0, and the set time period includes at least one continuous first preset time;

[0116] S2A1b: when the real-time output pressure difference is continuously less than the second pressure difference threshold and greater than or equal to the first pressure difference threshold within the first preset time, determining that the segmented leakage level of the pneumoperitoneum machine within the first preset time is the second level;

[0117] S2A1c: when the real-time output pressure difference is continuously less than the third pressure difference threshold and greater than or equal to the second pressure difference threshold within the first preset time, determining that the segmented leakage level of the pneumoperitoneum machine within the first preset time is the third level;

[0118] S2A1d: when the real-time output pressure difference is continuously greater than or equal to the third pressure difference threshold within the first preset time, determining that the segmented leakage level of the pneumoperitoneum machine within the first preset time is the fourth level;

[0119] S2A2: According to the same method, the segmented leakage levels of the pneumoperitoneum machine in all the first preset times of the set time period are determined in real time; and the leakage level of the pneumoperitoneum machine in the set time period is determined according to the segmented leakage levels in all the first preset times;

[0120] Among them, the first pressure difference threshold, the second pressure difference threshold and the third pressure difference threshold increase in sequence; the gas leakage levels represented by the first level, the second level, the third level and the fourth level increase in sequence.

[0121] When the real-time output pressure difference If P is continuously less than the first pressure difference threshold (set as p1) and lasts for the first preset time (set as t1), it means that the insufflator cannot reach a balanced state under the low flow rate gas supplementation state, and the difference between the output pressure and the set pressure is at a small level. It can be considered that the current insufflator has a low level of gas leakage, that is, its segmented leakage level within t1 is the first level. When P is continuously greater than or equal to the first pressure difference threshold p1 and less than the second pressure difference threshold (set as p2), and the duration is maintained for the first preset time t1, it means that the insufflator cannot reach the equilibrium state under the low flow rate gas supplementation state, and the difference between the output pressure and the set pressure is at a medium level. It can be considered that the current insufflator has a medium level of gas leakage, that is, its segmented leakage level within the time t1 is the second level. When P is continuously greater than or equal to the second pressure difference threshold p2 and less than the third pressure difference threshold (set to p3), and the duration is maintained for the first preset time t1, it means that the insufflator cannot reach a balanced state under the low flow rate gas supplementation state, and the difference between the output pressure and the set pressure is at a high level. It can be considered that the current insufflator has a high level of gas leakage, that is, its segmented leakage level within t1 time is the third level. When P is continuously greater than or equal to the third pressure difference threshold value p3, and the duration is maintained for the first preset time t1, it means that under the low flow rate gas supplementation state, the insufflator cannot always reach the equilibrium state, and the difference between the output pressure and the set pressure is at a very high level. It can be considered that the current insufflator has a very high level of gas leakage, that is, its segmented leakage level within the time t1 is the fourth level.

[0122] When the air is replenished at a low flow rate, the segmented leakage level is determined in accordance with the above method within t1. Since the set time period includes at least one continuous t1, if the set time period only includes one t1, after the segmented leakage level within the t1 is determined, the set time period only includes one segmented leakage level, and the segmented leakage level can be directly used as the leakage level within the set time period. If the set time period includes multiple continuous t1s, after the segmented leakage level within the t1 is determined, the same method is used to determine each t1 after t1, and the segmented leakage level within each t1 can be obtained. Finally, the leakage level within the set time period can be obtained by combining the segmented leakage levels within all t1s.

[0123] In this embodiment, the first preset time, the first pressure difference threshold, the second pressure difference threshold and the third pressure difference threshold can be preset and adjusted according to actual conditions. In an optional embodiment, the first pressure difference threshold p1 is 0.5 mmHg, the second pressure difference threshold p2 is 1.0 mmHg, the third pressure difference threshold is 2.5 mmHg, and the first preset time t1 is not limited.

[0124] Among the above four leakage levels (including segment leakage levels), the priorities of the first level, the second level, the third level and the fourth level are increased in sequence.

[0125] By setting the above four levels with increasing priorities, it is convenient to select the preset gas replenishment strategy with the highest urgency to replenish gas according to the actual level priority, so as to truly solve the underpressure problem of the pneumoperitoneum machine according to the actual situation.

[0126] When it is determined that the segmented leakage levels of the pneumoperitoneum machine in all the first preset times in the set time period include only one of the first level, the second level, the third level, and the fourth level, in S2A2, determining the leakage level of the pneumoperitoneum machine in the set time period according to the segmented leakage levels in all the first preset times includes:

[0127] Among all the segmented leakage levels within the first preset time, directly determining the segmented leakage level as the leakage level of the pneumoperitoneum machine within the set time period;

[0128] When it is determined that the segmented leakage levels of the pneumoperitoneum machine in all the first preset times in the set time period include at least two of the first level, the second level, the third level, and the fourth level, in S2A2, determining the leakage level of the pneumoperitoneum machine in the set time period according to the segmented leakage levels in all the first preset times includes:

[0129] Among all the segmented leakage levels within the first preset time, the segmented leakage level with the highest priority is determined as the leakage level of the pneumoperitoneum machine within the set time period.

[0130] When the set time period includes multiple continuous first preset times t1, since the leakage level identification process is real-time, the segmented leakage levels obtained within the set time period will include multiple, and these multiple segmented leakage levels may be the same or different. When these multiple segmented leakage levels are all the same, that is, all segmented leakage levels obtained within the set time period only include one of the first level, the second level, the third level, and the fourth level, then the same segmented leakage level can be directly used as the leakage level within the final set time period. When these multiple segmented leakage levels are not all the same, that is, all segmented leakage levels obtained within the set time period include at least two (possibly two, three, or four) of the first level, the second level, the third level, and the fourth level, then the segmented leakage level with the highest priority among these multiple segmented leakage levels can be directly determined as the leakage level within the final set time period.

[0131] The leakage level determination process under the low flow rate condition in this embodiment is as follows: Figure 3 shown.

[0132] Preferably, in the first case of high flow rate gas supplementation, this embodiment S2B includes:

[0133] S2B1a: When the real-time output pressure difference is continuously less than the first pressure difference threshold value within the second preset time, and increases to the fourth pressure difference threshold value after the second preset time and the duration is maintained for the third preset time, it is determined that the segmented leakage level of the pneumoperitoneum machine within the fourth preset time is the first level; wherein the first pressure difference threshold value is greater than 0, the fourth preset time is the sum of the time between the second preset time and the third preset time, and the set time period includes at least one continuous fourth preset time;

[0134] S2B1b: when the real-time output pressure difference is continuously greater than or equal to the first pressure difference threshold and less than the second pressure difference threshold within the second preset time, and increases to the fifth pressure difference threshold after the second preset time and lasts for the third preset time, it is determined that the segmented leakage level of the pneumoperitoneum machine within the fourth preset time is the second level;

[0135] S2B1c: when the real-time output pressure difference is continuously greater than or equal to the second pressure difference threshold and less than the third pressure difference threshold within the second preset time, and increases to the sixth pressure difference threshold after the second preset time and lasts for the third preset time, it is determined that the segmented leakage level of the pneumoperitoneum machine within the fourth preset time is the third level;

[0136] S2B1d: when the real-time output pressure difference is continuously greater than or equal to the third pressure difference threshold within the second preset time, and increases to the seventh pressure difference threshold after the second preset time and lasts for the third preset time, determining that the segmented leakage level of the pneumoperitoneum machine within the fourth preset time is the fourth level;

[0137] S2B2: According to the same method, the segmented leakage levels of the pneumoperitoneum machine in all the fourth preset times of the set time period are determined in real time; and the leakage level of the pneumoperitoneum machine in the set time period is determined according to the segmented leakage levels in all the fourth preset times;

[0138] Among them, the first pressure difference threshold, the second pressure difference threshold and the third pressure difference threshold increase in sequence, the fourth pressure difference threshold is greater than the first pressure difference threshold and less than the second pressure difference threshold, the fifth pressure difference threshold is greater than the second pressure difference threshold and less than the third pressure difference threshold, the sixth pressure difference threshold is greater than the third pressure difference threshold, and the seventh pressure difference threshold is greater than the sixth pressure difference threshold; the gas leakage levels represented by the first level, the second level, the third level and the fourth level increase in sequence.

[0139] When the real-time output pressure difference P is continuously less than the first pressure difference threshold (set as p1) for a second preset time (set as t2), and then after the second preset time t2 P increases to the fourth pressure difference threshold (this value is greater than the first pressure difference threshold p1, set to p4) and maintains the third preset time (set to t3) under the fourth pressure difference threshold p4, indicating that under the high flow rate gas supplementation state, the insufflator not only fails to reach the equilibrium state, but also the difference between the output pressure and the set pressure increases from a smaller level. It can be considered that the current insufflator still has a low level of gas leakage when the gas is supplemented at a high flow rate, that is, the leakage level of the segment (i.e., the fourth preset time t4) during the entire time t2+t3 (i.e., the fourth preset time t4) is the first level. When the real-time output pressure difference When P is continuously greater than or equal to the first pressure difference threshold p1 and less than the second pressure difference threshold (set as p2), the duration is maintained for the first preset time t1, and then after the second preset time t2 P increases to the fifth pressure difference threshold (this value is greater than the first pressure difference threshold p2, set to p5) and maintains the third preset time t3 under the fifth pressure difference threshold p5, indicating that under the high flow rate gas supplementation state, the insufflator not only cannot reach the equilibrium state, but also the corresponding pressure difference has a medium-level increase. It can be considered that the current insufflator has a medium-level gas leakage, that is, its segmented leakage level within t4 time is the second level. When the real-time output pressure difference When P is continuously greater than or equal to the second pressure difference threshold value p2 and less than the third pressure difference threshold value (set as p3), the duration is maintained for the first preset time t1, and then after the second preset time t2 P increases to the sixth pressure difference threshold (this value is greater than the third pressure difference threshold p3, set to p6) and maintains the third preset time t3 under the sixth pressure difference threshold p6, indicating that under the high flow rate gas supplementation state, the insufflator not only cannot reach the equilibrium state, but also the difference between the output pressure and the set pressure increases to a high level. It can be considered that the current insufflator has a high level of gas leakage, that is, its segmented leakage level within the time t4 is the third level. When the real-time output pressure difference When P is continuously greater than or equal to the third pressure difference threshold value p3, and the duration is maintained for the first preset time t1, and then after the second preset time t2 P increases to the seventh pressure difference threshold (this value is greater than the sixth pressure difference threshold p6, set to p7) and maintains the third preset time t3 under the seventh pressure difference threshold p7, which means that under the high-flow rate gas supplementation state, the insufflator not only cannot reach the equilibrium state, but also the difference between the output pressure and the set pressure increases to a very high level. It can be considered that the current insufflator has a very high level of gas leakage, that is, its segmented leakage level within the time t4 is the fourth level.

[0140] Similar to the case of gas supplementation at a low flow rate, when gas supplementation is performed at a high flow rate, the segmented leakage level is determined in accordance with the above method within t4. Since the set time period includes at least one continuous t4, if the set time period only includes one t4, after the segmented leakage level within the t4 is determined, the set time period only includes one segmented leakage level, and the segmented leakage level can be directly used as the leakage level within the set time period. If the set time period includes multiple continuous t4s, after the segmented leakage level within the t4 is determined, the same method is used to determine each t4 after t4, and the segmented leakage level within each t4 can be obtained. Finally, the leakage level within the set time period can be obtained by combining the segmented leakage levels within all t4s.

[0141] Similarly, the above-mentioned preset times and pressure difference thresholds of this embodiment can be pre-set and adjusted according to actual conditions. In an optional embodiment, the first pressure difference threshold p1 is 0.5 mmHg, the second pressure difference threshold p2 is 1.0 mmHg, the third pressure difference threshold is 2.5 mmHg, the fourth pressure difference threshold p4 is a value between 0.5 mmHg and 1.0 mmHg, the fifth pressure difference threshold p5 is a value between 1.0 mmHg and 2.5 mmHg, the sixth pressure difference threshold p6 is a value greater than 2.5 mmHg, and the seventh pressure difference threshold p7 is a value greater than the sixth pressure difference threshold p6, and each preset time t1 is not limited.

[0142] Preferably, in the second case of high flow rate gas supplementation, this embodiment S2B includes:

[0143] S2B1a: When the real-time output pressure difference is continuously less than the first pressure difference threshold within the second preset time and remains unchanged within the third preset time after the second preset time, determining that the segmented leakage level of the pneumoperitoneum machine within the fourth preset time is the first level; wherein the first pressure difference threshold is greater than 0, the fourth preset time is the sum of the time between the second preset time and the third preset time, and the set time period includes at least one continuous fourth preset time;

[0144] S2B1b: when the real-time output pressure difference is continuously greater than or equal to the first pressure difference threshold and less than the second pressure difference threshold within the second preset time, and remains unchanged within the third preset time after the second preset time, determining that the segmented leakage level of the pneumoperitoneum machine within the fourth preset time is the second level;

[0145] S2B1c: when the real-time output pressure difference is continuously greater than or equal to the second pressure difference threshold and less than the third pressure difference threshold within the second preset time, and remains unchanged within the third preset time after the second preset time, determining that the segmented leakage level of the pneumoperitoneum machine within the fourth preset time is the third level;

[0146] S2B1d: when the real-time output pressure difference is continuously greater than or equal to the third pressure difference threshold within the second preset time and remains unchanged within the third preset time after the second preset time, determining that the segmented leakage level of the pneumoperitoneum machine within the fourth preset time is the fourth level;

[0147] S2B2: According to the same method, the segmented leakage levels of the pneumoperitoneum machine in all the fourth preset times of the set time period are determined in real time; and the leakage level of the pneumoperitoneum machine in the set time period is determined according to the segmented leakage levels in all the fourth preset times;

[0148] Among them, the first pressure difference threshold, the second pressure difference threshold and the third pressure difference threshold increase in sequence; the gas leakage levels represented by the first level, the second level, the third level and the fourth level increase in sequence.

[0149] The above situation is similar to the judgment process of the first high-flow gas supplementation. When the real-time output pressure difference P is continuously less than the first pressure difference threshold p1 for a second preset time t2, and then within a third preset time t3 after the second preset time t2 P does not drop but remains stable at a state less than the first pressure difference threshold p1. This indicates that under the high-flow gas supplementation state, the insufflator not only cannot reach a balanced state, but also will not cause The oscillation of P can also be considered that there is still a low level of gas leakage when the current insufflator is replenishing gas at a high flow rate, that is, the leakage level of the segment (i.e., the fourth preset time t4) during the entire time t2+t3 (i.e., the fourth preset time t4) is the first level. When P is continuously greater than or equal to the first pressure difference threshold p1 and less than the second pressure difference threshold p2, the duration lasts for a first preset time t1, and then within a third preset time t3 after the second preset time t2 P does not drop but remains stable at a state greater than or equal to the first pressure difference threshold p1 and less than the second pressure difference threshold p2, indicating that under the high flow rate gas supplementation state, the insufflator not only cannot reach the equilibrium state, but also will not cause The oscillation of P can also indicate that the current insufflator has a medium-level gas leakage, that is, its segmented leakage level within time t4 is the second level. The third and fourth levels are similar and will not be described here.

[0150] Similarly, similar to the first case of gas replenishment at a high flow rate, when gas replenishment is performed at a high flow rate, the segmented leakage level is determined in accordance with the above method within t4. If the set time period includes only one t4, after the segmented leakage level within the t4 is determined, the set time period only includes one segmented leakage level, and the segmented leakage level can be directly used as the leakage level within the set time period. If the set time period includes multiple consecutive t4s, after the segmented leakage level within the t4 is determined, the same method is used to determine each t4 after t4, and the segmented leakage level within each t4 can be obtained. Finally, the leakage level within the set time period can be obtained by combining the segmented leakage levels within all t4s.

[0151] Similarly, the above-mentioned preset times and pressure difference thresholds in this embodiment can be preset and adjusted according to actual conditions, and are not listed here.

[0152] For the above two situations of high flow rate gas supplementation, similarly, the priorities of the first level, the second level, the third level and the fourth level are increased in sequence;

[0153] When it is determined that the segmented leakage levels of the pneumoperitoneum machine in all the fourth preset times in the set time period include only one of the first level, the second level, the third level and the fourth level, in S2B2, determining the leakage level of the pneumoperitoneum machine in the set time period according to the segmented leakage levels in all the fourth preset times includes:

[0154] Among all the segmented leakage levels within the fourth preset time, directly determining the segmented leakage level as the leakage level of the pneumoperitoneum machine within the set time period;

[0155] When it is determined that the segmented leakage levels of the pneumoperitoneum machine in all the fourth preset times in the set time period include at least two of the first level, the second level, the third level, and the fourth level, in S2B2, determining the leakage level of the pneumoperitoneum machine in the set time period according to the segmented leakage levels in all the fourth preset times includes:

[0156] Among all the segmented leakage levels within the fourth preset time, the segmented leakage level with the highest priority is determined as the leakage level of the pneumoperitoneum machine within the set time period.

[0157] Similar to the case of low flow rate gas supplementation, when the set time period includes multiple continuous fourth preset times t4, since the leakage level identification process is real-time, the segmented leakage levels obtained within the set time period will include multiple, and these multiple segmented leakage levels may be the same or different. When these multiple segmented leakage levels are all the same, that is, all segmented leakage levels obtained within the set time period only include one of the first level, the second level, the third level and the fourth level, then the same segmented leakage level can be directly used as the leakage level within the final set time period. When these multiple segmented leakage levels are not all the same, that is, all segmented leakage levels obtained within the set time period include at least two (possibly two, three or four) of the first level, the second level, the third level and the fourth level, then the segmented leakage level with the highest priority among these multiple segmented leakage levels can be directly determined as the leakage level within the final set time period.

[0158] The determination process of the first leakage level under the high flow rate gas supplementation in this embodiment is as follows: Figure 4AAs shown in the figure, the determination process of the second leakage level under high flow rate air supply is as follows Figure 4B shown.

[0159] For the above-mentioned low flow rate gas supplementation and high flow rate gas supplementation, this embodiment S3 includes:

[0160] When it is determined that the leakage level of the pneumoperitoneum machine within the set time period is the first level, a first alarm signal is output, and a PID control method is adopted to replenish gas to the pneumoperitoneum machine according to a first gas replenishment strategy;

[0161] When it is determined that the leakage level of the pneumoperitoneum machine within the set time period is the second level, a second alarm signal is output, and the PID control method is adopted to replenish gas to the pneumoperitoneum machine according to a second gas replenishment strategy;

[0162] When it is determined that the leakage level of the pneumoperitoneum machine within the set time period is the third level, a third alarm signal is output, and the PID control method is adopted to replenish gas to the pneumoperitoneum machine according to the third gas replenishment strategy;

[0163] When it is determined that the leakage level of the insufflator within the set time period is the fourth level, a fourth alarm signal is output, and the insufflator is inflated with gas according to the set gas inflating amount.

[0164] Regardless of whether it is a case of low-flow gas replenishment or high-flow gas replenishment, when the leakage level within the set time period is determined, the corresponding alarm signal and gas replenishment strategy can be matched. For the first level, a matching first alarm signal is output, and a PID control method is used to automatically replenish gas according to the matching first gas replenishment strategy; for the second level, a matching second alarm signal is output, and a PID control method is used to automatically replenish gas according to the matching second gas replenishment strategy; for the third level, a matching third alarm signal is output, and a PID control method is used to automatically replenish gas according to the matching third gas replenishment strategy; for the fourth level, since this level has the highest priority, it has reflected that the pneumoperitoneum machine is showing a very high level of leakage at this time, and gas replenishment is directly performed according to the set gas replenishment volume (usually a higher value) to achieve full-speed gas replenishment.

[0165] In the above-mentioned gas replenishment strategies for the first, second and third levels, PID control methods (proportional-integral-differential control methods) are used for gas replenishment, which can more accurately adjust the proportional coefficient, integral time and differential time in the PID controller according to different leakage levels, so as to achieve gas replenishment at different leakage levels more accurately and with higher precision. It has high flexibility and fast response, and can quickly adjust the gas replenishment rate to ensure that the intra-abdominal pressure quickly reaches and maintains the set value, reduce surgical risks, and truly solve the safety problem of the insmothermometer. In addition, adjusting the proportional, integral and differential coefficients in the PID controller based on different leakage levels can better rely on the historical data and current data during the gas replenishment process of the insmothermometer, so as to facilitate more accurate prediction of the gas replenishment strategy for the next set time period in the future.

[0166] For the above-mentioned first, second and third air replenishment strategies, the proportional coefficient Kp, integral time Ti and differential time Td in the PID controller are all different. When the PID control method is used to respectively execute the first, second and third air replenishment strategies, the proportional coefficient Kp corresponding to the first air replenishment strategy is relatively the smallest, which can present a slower air replenishment speed and a smaller air replenishment volume to adapt to a lower level of leakage; while the proportional coefficient Kp corresponding to the third air replenishment strategy is relatively the smallest, which can present a faster air replenishment speed and a larger air replenishment volume to adapt to a higher level of leakage. At the same time, in the process of adjusting the proportional coefficient Kp, the integral time Ti and the differential time Td can be appropriately adjusted to ensure the best stability and steady-state error.

[0167] All of the above alarm signals can be pre-set according to actual conditions. In an optional embodiment, each alarm signal is a voice prompt, such as the first alarm signal is "The insufflator is injecting gas, and a slight leak occurs, please pay attention to check", the second alarm signal is "The insufflator is injecting gas, and a medium leak occurs, please pay attention to check", the third alarm signal is "The insufflator is injecting gas, and a huge leak occurs, the situation is quite urgent, please check as soon as possible", and the fourth alarm signal is "The insufflator is injecting gas, and a serious leak occurs, the situation is very urgent, please check immediately".

[0168] The process of selecting a matching gas replenishment strategy according to the leakage level in this embodiment is as follows: Figure 4A and Figure 4B shown.

[0169] Embodiment 2

[0170] A safety alarm control system for an insufflator, applied to the safety alarm control method for an insufflator of the first embodiment, such as Figure 5 As shown, the system comprises:

[0171] A real-time monitoring module, used to monitor the output pressure and gas flow rate of the pneumoperitoneum machine in real time within a set time period, and obtain the real-time output pressure difference of the pneumoperitoneum machine according to the output pressure;

[0172] A leakage determination module, used for determining the leakage level of the insufflator within the set time period according to the real-time output pressure difference and the gas flow rate when gas leakage occurs in the insufflator;

[0173] The alarm control module is used to output a matching alarm signal according to the leakage level, and to replenish gas to the pneumoperitoneum machine according to a preset gas replenishment strategy matching the leakage level.

[0174] In this embodiment, the real-time monitoring module is used to monitor the output pressure and gas flow rate in real time, so as to realize the real-time monitoring of the status of the insufflator, which is convenient for the subsequent safety identification and safety adjustment; the real-time output pressure difference of the insufflator is obtained according to the output pressure, so as to provide a judgment basis for the subsequent safety identification based on the gas flow rate and the real-time output pressure difference; when a gas leak occurs in the insufflator, the leakage judgment module is used to accurately judge the leakage level corresponding to the gas leak in the insufflator in combination with the real-time output pressure difference and the gas flow rate, which is convenient for the subsequent alarm control module to output a matching alarm signal according to different leakage levels, so as to The user is notified in time to take the same solution measures. On the other hand, it is convenient for the alarm control module to select a matching preset gas replenishment strategy to replenish the gas of the insufflator according to different leakage levels. It is not limited to the traditional gas replenishment method. Gas can be replenished according to the actual situation of the leakage, and the insufflator can quickly reach a balanced state. Excessive gas replenishment will not cause instantaneous overpressure of the equipment. The use of targeted gas replenishment strategies combined with the user's solution measures can truly solve the leakage problem of the insufflator during the gas replenishment process, and can effectively avoid medical accidents such as surgical failure caused by leakage of the insufflator, as well as safety accidents such as gas poisoning and fire.

[0175] The insufflator safety alarm control system of this embodiment performs targeted gas replenishment based on the leakage level, thereby providing a higher level of intelligence and higher precision safety identification and adjustment capability when the insufflator is under-pressurized, and can fundamentally solve the safety problem of the insufflator.

[0176] The functions of each module in the insufflator safety alarm control system described in this embodiment are the same as the method steps of the insufflator safety alarm control method described in Example 1. Therefore, for the details not covered in this embodiment, please refer to Example 1 and Figures 1 to 4B The detailed description will not be repeated here.

[0177] Embodiment 3

[0178] This embodiment provides a safety alarm control device for a pneumoperitoneum machine, such as Figure 6As shown, including:

[0179] A pressure sensor is used to monitor the output pressure of the pneumoperitoneum machine in real time within a set time period;

[0180] A flow rate sensor is used to monitor the gas flow rate of the pneumoperitoneum machine in real time within a set time period;

[0181] A controller, which is in communication connection with the pressure sensor and the flow rate sensor; and is used to obtain the real-time output pressure difference of the insufflator according to the output pressure; when gas leakage occurs in the insufflator, the leakage level of the insufflator within the set time period is determined according to the real-time output pressure difference and the gas flow rate, and a matching alarm signal and a preset gas replenishment strategy are matched;

[0182] an alarm, connected to the controller in communication, and configured to output an alarm signal matching the leakage level under the control of the controller;

[0183] and an air replenishment component, which is in communication with the controller and is used for replenishing air to the pneumoperitoneum machine according to a preset air replenishment strategy matching the leakage level under the control of the controller.

[0184] In this embodiment, the pressure sensor and the flow rate sensor are both communicatively connected to the controller, and the output pressure and gas flow rate respectively monitored by the two sensors in real time can be transmitted to the controller in real time, and then the controller is used to determine the corresponding leakage level in real time, and then match the corresponding alarm signal and preset gas replenishment strategy; the alarm and the gas replenishment component are both communicatively connected to the controller, and can respectively receive the control signal of the alarm. The alarm outputs a matching alarm signal under the control of the controller, and the gas replenishment component performs gas replenishment corresponding to the preset gas replenishment strategy under the control of the controller; the safety alarm control device of the insufflator of this embodiment performs targeted gas replenishment based on the leakage level, and realizes a higher degree of intelligence and higher precision safety identification and adjustment capability when the insufflator is under-pressure, which can fundamentally solve the safety problem of the insufflator.

[0185] Pressure sensors, flow rate sensors, controllers and alarms can all be selected according to actual conditions. The gas supply components include carbon dioxide gas source, pressure reducing valve, solenoid valve, gas pipeline and other components. These components are common components of the pneumoperitoneum machine and will not be described here.

[0186] For details of this embodiment, please refer to Embodiment 1, Embodiment 2 and Figures 1 to 5 The detailed description will not be repeated here.

[0187] Embodiment 4

[0188] This embodiment also provides another insufflator safety alarm control device, including a processor, a memory, and a computer program stored in the memory and executable on the processor, and when the computer program is executed, the method steps in the insufflator safety alarm control method of the first embodiment are implemented.

[0189] Through a computer program stored in the memory and running on the processor, targeted air replenishment is performed based on the leakage level, providing higher intelligence and higher precision safety identification and adjustment capabilities when the insufflator is under-pressure, which can fundamentally solve the safety problems of the insufflator.

[0190] The processor may be a central processing unit (CPU), other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or any conventional processor, etc. The processor is the control center of a computer device, and uses various interfaces and lines to connect various parts of the entire computer device.

[0191] The memory can be used to store computer programs and / or models. The processor realizes various functions of the computer device by running or executing the computer programs and / or models stored in the memory and calling the 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 and at least one application required for a function (such as a sound playback function, an image playback function, etc.); the data storage area can store data created according to the use of the mobile phone (such as audio data, video data, etc.). In addition, the memory can include a high-speed random access memory and can also include a non-volatile memory, such as a hard disk, a memory, a plug-in hard disk, a smart memory card (SmartMedia Card, SMC), a secure digital (Secure Digital, SD) card, a flash card (Flash Card), at least one disk storage device, a flash memory device, or other volatile solid-state storage devices.

[0192] It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of the processes and / or blocks in the flowchart and / or block diagram, can be implemented by a computer program. These computer programs can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0193] These computer programs may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer-readable memory produce a manufactured product including an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0194] These computer programs can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, so that the instructions executed on the computer or other programmable device provide instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0195] This embodiment also provides a computer storage medium, which includes: at least one instruction, which implements the method steps in the pneumoperitoneum machine safety alarm control method of embodiment 1 when the instruction is executed by the computer.

[0196] By executing a computer storage medium containing at least one instruction, targeted gas replenishment is performed based on the leakage level, thereby providing a higher degree of intelligence and higher precision safety identification and adjustment capability when the insufflator is under-pressure, which can fundamentally solve the safety problem of the insufflator.

[0197] Similarly, for details not yet included in this embodiment, see Embodiment 1, Embodiment 2, Embodiment 3 and Figures 1 to 6 The detailed description will not be repeated here.

[0198] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A method for controlling the safety alarm of an insufflator, characterized in that: The method comprises: Real-time monitoring of the output pressure and gas flow rate of the pneumoperitoneum machine within a set time period, and obtaining the real-time output pressure difference of the pneumoperitoneum machine according to the output pressure; When gas leakage occurs in the insufflator, determining the leakage level of the insufflator within the set time period according to the real-time output pressure difference and the gas flow rate; According to the leakage level, a matching alarm signal is output, and the insufflating device is supplied with gas according to a preset gas supply strategy matching the leakage level; The real-time output pressure difference is the difference between the set pressure of the insufflator and the output pressure; wherein, when the insufflator has a gas leak, the output pressure is less than the set pressure of the insufflator; Determining the leakage level of the pneumoperitoneum machine within the set time period according to the real-time output pressure difference and the gas flow rate includes: When the gas flow rate is less than a preset flow rate value, determining the leakage level of the pneumoperitoneum machine within the set time period according to the real-time output pressure difference according to a first determination method; When the gas flow rate is greater than or equal to the preset flow rate value, the leakage level of the pneumoperitoneum machine within the set time period is determined according to the real-time output pressure difference in accordance with a second determination method.

2. The insufflator safety alarm control method according to claim 1, characterized in that: When the gas flow rate is less than the preset flow rate value, according to the first determination method, the leakage level of the pneumoperitoneum machine within the set time period is determined according to the real-time output pressure difference, including: When the real-time output pressure difference is continuously less than the first pressure difference threshold within the first preset time, determining that the segmented leakage level of the pneumoperitoneum machine within the first preset time is the first level; wherein the first pressure difference threshold is greater than 0, and the set time period includes at least one continuous first preset time; When the real-time output pressure difference is continuously less than the second pressure difference threshold and greater than or equal to the first pressure difference threshold within the first preset time, determining that the segmented leakage level of the pneumoperitoneum machine within the first preset time is the second level; When the real-time output pressure difference is continuously less than the third pressure difference threshold and greater than or equal to the second pressure difference threshold within the first preset time, determining that the segmented leakage level of the pneumoperitoneum machine within the first preset time is the third level; When the real-time output pressure difference is continuously greater than or equal to the third pressure difference threshold within the first preset time, determining that the segmented leakage level of the pneumoperitoneum machine within the first preset time is the fourth level; According to the same method, the segmented leakage level of the pneumoperitoneum machine in all the first preset times of the set time period is determined in real time; and the leakage level of the pneumoperitoneum machine in the set time period is determined according to the segmented leakage level in all the first preset times; Among them, the first pressure difference threshold, the second pressure difference threshold and the third pressure difference threshold increase in sequence; the gas leakage levels represented by the first level, the second level, the third level and the fourth level increase in sequence.

3. The insufflator safety alarm control method according to claim 2, characterized in that: The priorities of the first level, the second level, the third level and the fourth level are increased in sequence; When it is determined that the segmented leakage levels of the pneumoperitoneum machine in all the first preset times in the set time period include only one of the first level, the second level, the third level, and the fourth level, determining the leakage level of the pneumoperitoneum machine in the set time period according to the segmented leakage levels in all the first preset times includes: Among all the segmented leakage levels within the first preset time, directly determining the segmented leakage level as the leakage level of the pneumoperitoneum machine within the set time period; When it is determined that the segmented leakage levels of the pneumoperitoneum machine in all the first preset times in the set time period include at least two of the first level, the second level, the third level, and the fourth level, determining the leakage level of the pneumoperitoneum machine in the set time period according to the segmented leakage levels in all the first preset times includes: Among all the segmented leakage levels within the first preset time, the segmented leakage level with the highest priority is determined as the leakage level of the pneumoperitoneum machine within the set time period.

4. The insufflator safety alarm control method according to claim 1, characterized in that: When the gas flow rate is greater than or equal to the preset flow rate value, determining the leakage level of the pneumoperitoneum machine within the set time period according to the real-time output pressure difference according to the second determination method includes: When the real-time output pressure difference is continuously less than the first pressure difference threshold value within the second preset time, and increases to the fourth pressure difference threshold value after the second preset time and the duration is maintained for the third preset time, it is determined that the segmented leakage level of the pneumoperitoneum machine within the fourth preset time is the first level; wherein the first pressure difference threshold value is greater than 0, the fourth preset time is the sum of the time between the consecutive second preset time and the third preset time, and the set time period includes at least one consecutive fourth preset time; When the real-time output pressure difference is continuously greater than or equal to the first pressure difference threshold and less than the second pressure difference threshold within the second preset time, and increases to the fifth pressure difference threshold after the second preset time and lasts for the third preset time, it is determined that the segmented leakage level of the pneumoperitoneum machine within the fourth preset time is the second level; When the real-time output pressure difference is continuously greater than or equal to the second pressure difference threshold and less than the third pressure difference threshold within the second preset time, and increases to the sixth pressure difference threshold after the second preset time and lasts for the third preset time, it is determined that the segmented leakage level of the pneumoperitoneum machine within the fourth preset time is the third level; When the real-time output pressure difference is continuously greater than or equal to the third pressure difference threshold within the second preset time, and increases to the seventh pressure difference threshold after the second preset time and lasts for the third preset time, it is determined that the segmented leakage level of the pneumoperitoneum machine within the fourth preset time is the fourth level; According to the same method, the segmented leakage level of the pneumoperitoneum machine in all the fourth preset times of the set time period is determined in real time; and the leakage level of the pneumoperitoneum machine in the set time period is determined according to the segmented leakage level in all the fourth preset times; Among them, the first pressure difference threshold, the second pressure difference threshold and the third pressure difference threshold increase in sequence, the fourth pressure difference threshold is greater than the first pressure difference threshold and less than the second pressure difference threshold, the fifth pressure difference threshold is greater than the second pressure difference threshold and less than the third pressure difference threshold, the sixth pressure difference threshold is greater than the third pressure difference threshold, and the seventh pressure difference threshold is greater than the sixth pressure difference threshold; the gas leakage levels represented by the first level, the second level, the third level and the fourth level increase in sequence.

5. The insufflator safety alarm control method according to claim 1, characterized in that: When the gas flow rate is greater than or equal to the preset flow rate value, determining the leakage level of the pneumoperitoneum machine within the set time period according to the real-time output pressure difference according to the second determination method includes: When the real-time output pressure difference is continuously less than the first pressure difference threshold within the second preset time and remains unchanged within the third preset time after the second preset time, it is determined that the segmented leakage level of the pneumoperitoneum machine within the fourth preset time is the first level; wherein the first pressure difference threshold is greater than 0, the fourth preset time is the sum of the time between the consecutive second preset time and the third preset time, and the set time period includes at least one consecutive fourth preset time; When the real-time output pressure difference is continuously greater than or equal to the first pressure difference threshold and less than the second pressure difference threshold within the second preset time, and remains unchanged within the third preset time after the second preset time, it is determined that the segmented leakage level of the pneumoperitoneum machine within the fourth preset time is the second level; When the real-time output pressure difference is continuously greater than or equal to the second pressure difference threshold and less than the third pressure difference threshold within the second preset time, and remains unchanged within the third preset time after the second preset time, it is determined that the segmented leakage level of the pneumoperitoneum machine within the fourth preset time is the third level; When the real-time output pressure difference is continuously greater than or equal to the third pressure difference threshold value within the second preset time and remains unchanged within the third preset time after the second preset time, determining that the segmented leakage level of the pneumoperitoneum machine within the fourth preset time is the fourth level; According to the same method, the segmented leakage level of the pneumoperitoneum machine in all the fourth preset times of the set time period is determined in real time; and the leakage level of the pneumoperitoneum machine in the set time period is determined according to the segmented leakage level in all the fourth preset times; Among them, the first pressure difference threshold, the second pressure difference threshold and the third pressure difference threshold increase in sequence; the gas leakage levels represented by the first level, the second level, the third level and the fourth level increase in sequence.

6. The insufflator safety alarm control method according to claim 4 or 5, characterized in that: The priorities of the first level, the second level, the third level and the fourth level are increased in sequence; When it is determined that the segmented leakage levels of the pneumoperitoneum machine in all the fourth preset times in the set time period include only one of the first level, the second level, the third level, and the fourth level, determining the leakage level of the pneumoperitoneum machine in the set time period according to the segmented leakage levels in all the fourth preset times includes: Among all the segmented leakage levels within the fourth preset time, directly determining the segmented leakage level as the leakage level of the pneumoperitoneum machine within the set time period; When it is determined that the segmented leakage levels of the pneumoperitoneum machine in all the fourth preset times of the set time period include at least two of the first level, the second level, the third level, and the fourth level, determining the leakage level of the pneumoperitoneum machine in the set time period according to the segmented leakage levels in all the fourth preset times includes: Among all the segmented leakage levels within the fourth preset time, the segmented leakage level with the highest priority is determined as the leakage level of the pneumoperitoneum machine within the set time period.

7. The insufflator safety alarm control method according to claim 2, 4 or 5, characterized in that: Outputting a matching alarm signal according to the leakage level, and replenishing gas to the pneumoperitoneum machine according to a preset gas replenishment strategy matching the leakage level, includes: When it is determined that the leakage level of the pneumoperitoneum machine within the set time period is the first level, a first alarm signal is output, and a PID control method is adopted to replenish gas to the pneumoperitoneum machine according to a first gas replenishment strategy; When it is determined that the leakage level of the pneumoperitoneum machine within the set time period is the second level, a second alarm signal is output, and the PID control method is adopted to replenish gas to the pneumoperitoneum machine according to a second gas replenishment strategy; When it is determined that the leakage level of the pneumoperitoneum machine within the set time period is the third level, a third alarm signal is output, and the PID control method is adopted to replenish gas to the pneumoperitoneum machine according to the third gas replenishment strategy; When it is determined that the leakage level of the insufflator within the set time period is the fourth level, a fourth alarm signal is output, and the insufflator is inflated with gas according to the set gas inflating amount.

8. The insufflator safety alarm control method according to claim 1, characterized in that: Before determining the leakage level of the insufflature machine within the set time period according to the real-time output pressure difference and the gas flow rate when the insufflature machine leaks gas, the method further includes: Whether the insufflator is under-pressure is determined according to the real-time output pressure difference.

9. The insufflator safety alarm control method according to claim 8, characterized in that: The determining whether the insufflator has an underpressure phenomenon according to the real-time output pressure difference comprises: When the real-time output pressure difference is continuously less than the eighth pressure difference threshold and lasts for more than the fifth preset time, it is determined that the insufflator is under-pressure, a fifth alarm signal is output, and the insufflator is controlled to perform gas replenishment; otherwise, it is determined that the insufflator is not under-pressure.

10. The insufflator safety alarm control method according to claim 9, characterized in that: When it is determined that the insufflator has an underpressure phenomenon, a fifth alarm signal is output, and the insufflator is controlled to perform gas replenishment, the method further includes: Whether gas leakage occurs in the insufflator is determined according to the real-time output pressure difference.

11. The insufflator safety alarm control method according to claim 10, characterized in that: The step of determining whether the insufflator has gas leakage according to the real-time output pressure difference comprises: When the real-time output pressure difference is continuously less than the ninth pressure difference threshold value and the duration exceeds the sixth preset time, it is determined that the insufflator has a gas leak; otherwise, it is determined that the insufflator has no gas leak; Wherein, the sixth preset time is greater than the fifth preset time.

12. A safety alarm control system for an insufflator, characterized in that: Applied to the insufflator safety alarm control method according to any one of claims 1 to 11, the system comprises: A real-time monitoring module, used to monitor the output pressure and gas flow rate of the pneumoperitoneum machine in real time within a set time period, and obtain the real-time output pressure difference of the pneumoperitoneum machine according to the output pressure; A leakage determination module, used for determining the leakage level of the insufflator within the set time period according to the real-time output pressure difference and the gas flow rate when gas leakage occurs in the insufflator; The alarm control module is used to output a matching alarm signal according to the leakage level, and to replenish gas to the pneumoperitoneum machine according to a preset gas replenishment strategy matching the leakage level.

13. A safety alarm control device for an insufflator, characterized in that: include: A pressure sensor is used to monitor the output pressure of the pneumoperitoneum machine in real time within a set time period; A flow rate sensor is used to monitor the gas flow rate of the pneumoperitoneum machine in real time within a set time period; A controller, which is in communication connection with the pressure sensor and the flow rate sensor; and is used to obtain the real-time output pressure difference of the insufflator according to the output pressure; when gas leakage occurs in the insufflator, the leakage level of the insufflator within the set time period is determined according to the real-time output pressure difference and the gas flow rate, and a matching alarm signal and a preset gas replenishment strategy are matched; an alarm, connected to the controller in communication, and configured to output an alarm signal matching the leakage level under the control of the controller; and an air replenishment component, which is in communication with the controller and is used for replenishing air to the pneumoperitoneum machine according to a preset air replenishment strategy matching the leakage level under the control of the controller.

14. A computer storage medium, characterized in that: The computer storage medium includes: at least one instruction, which, when executed by a computer, implements the method steps in the insufflator safety alarm control method according to any one of claims 1 to 11.

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