Insufflator operation control device and insufflator

Abstract

The present application relates to an insufflator operation control device and an insufflator. When different parameter setting instructions are stored in a preset parameter database, the insufflator outputs gas corresponding to the preset gas flow rate and preset gas pressure values. In actual use, the user only needs to issue the corresponding parameter setting instructions to automatically match the preset gas flow rate and preset gas pressure values ​​suitable for the current operation object, thereby realizing gas output control. This can realize the one-key setting of the flow rate and pressure required for the operation of the insufflator, reduce the amount of operation by the user during use, and effectively improve the working efficiency and operating convenience of the insufflator.

Description

Technical Field

[0001] The present application relates to the technical field of surgical equipment, and in particular to an insufflator operation control device and an insufflator. Background Art

[0002] With the rapid development of science and technology, laparoscopic surgery has become an inevitable trend and new direction for the development of minimally invasive surgical methods. Laparoscopic surgery involves drilling holes in the closed abdominal and pelvic cavity, flushing gas into the abdominal cavity through an insufflator to form an operating space, and then using a high-definition laparoscope to observe the state and condition of various tissues and organs in the abdominal cavity, thereby performing the surgery. Inflation through an insufflator can broaden the surgical field of view, allowing doctors to observe and understand details such as internal organ tissues in real time.

[0003] After a traditional insufflator is turned on, the operator is required to manually input the flow and pressure values ​​required for operation based on usage experience, and then input gas into the abdominal cavity of the operating object to form an operating space, resulting in low working efficiency and poor operating convenience of the traditional insufflator. Summary of the invention

[0004] Based on this, it is necessary to provide an insufflator operation control device and an insufflator to address the problems of low working efficiency and poor operating convenience of traditional insufflator.

[0005] A method for controlling the operation of an insufflator comprises: receiving a parameter setting instruction sent by a user; obtaining a gas flow preset value and a gas pressure preset value matching a current operation object according to the parameter setting instruction and a preset parameter database; the preset parameter database stores the gas flow preset values ​​and gas pressure preset values ​​required for different parameter setting instructions; and controlling the gas output of the insufflator according to the gas flow preset values ​​and the gas pressure preset values.

[0006] In some embodiments, the step of controlling the gas output of the insufflator according to the gas flow preset value and the gas pressure preset value includes: obtaining the actual gas flow and the actual gas pressure when the insufflator starts to output gas; adjusting the output gas of the insufflator according to the gas flow preset value and the gas pressure preset value so that the actual gas pressure is less than or equal to the gas pressure preset value, and the actual gas flow is consistent with the gas flow preset value.

[0007] In some embodiments, the step of adjusting the output gas of the insufflator according to the gas flow preset value and the gas pressure preset value so that the actual gas pressure is less than or equal to the gas pressure preset value, and the actual gas flow is consistent with the gas flow preset value, includes: judging whether the actual gas pressure is less than or equal to the gas pressure preset value; if the actual gas pressure is less than or equal to the gas pressure preset value, adjusting the opening of the flow proportional valve of the insufflator so that the actual gas flow is consistent with the gas flow preset value; if the actual gas pressure is greater than the gas pressure preset value, controlling the pressure reducing valve of the insufflator to open for pressure relief, and returning to the step of judging whether the actual gas pressure is less than or equal to the gas pressure preset value.

[0008] In some embodiments, the step of adjusting the opening of the flow proportional valve of the pneumoperitoneum machine to make the actual gas flow consistent with the preset gas flow value includes: determining whether the difference between the actual gas flow and the preset gas flow value is less than a preset difference threshold; if it is less than the preset difference threshold, fine-tuning the flow proportional valve through a linear regression algorithm to make the actual gas flow consistent with the preset gas flow value.

[0009] In some embodiments, after the step of determining whether the difference between the actual gas flow and the preset gas flow value is less than a preset difference threshold, it also includes: if it is not less than the preset difference threshold, determining whether the actual gas flow is greater than the preset gas flow value; if the actual gas flow is greater than the preset gas flow value, returning to the step of determining whether the actual gas pressure is less than or equal to the preset gas pressure value; if the actual gas flow is less than the preset gas flow value, increasing the opening of the flow proportional valve of the pneumoperitoneum machine, and returning to the step of determining whether the difference between the actual gas flow and the preset gas flow value is less than the preset difference threshold.

[0010] In some embodiments, after the step of obtaining the actual gas flow and actual gas pressure when the pneumoperitoneum machine starts to output gas, it also includes: outputting the actual gas flow, the actual gas pressure, the gas flow preset value and the gas pressure preset value to the display device of the pneumoperitoneum machine for display.

[0011] In some embodiments, after the step of obtaining the actual gas flow and the actual gas pressure when the pneumoperitoneum machine starts to output gas, it also includes: sending the actual gas flow and the actual gas pressure to a cloud server for storage.

[0012] A pneumoperitoneum machine operation control device, comprising: an instruction receiving module, used to receive parameter setting instructions sent by a user; a parameter matching module, used to obtain a gas flow preset value and a gas pressure preset value that match a current operation object according to the parameter setting instructions and a preset parameter database; the preset parameter database stores the gas flow preset values ​​and gas pressure preset values ​​required for corresponding to different parameter setting instructions; an operation adjustment module, used to control the gas output of the pneumoperitoneum machine according to the gas flow preset value and the gas pressure preset value.

[0013] A pneumoperitoneum machine comprises: an air inlet pipeline, a pressure reducing valve, a flow proportional valve, a gas chamber, an air outlet pipeline, a pressure detector, a flow detector and a processor, wherein the air inlet pipeline is used to connect to a gas source, the air inlet pipeline is connected to the gas chamber, and the gas chamber is connected to the air outlet pipeline, the pressure reducing valve and the flow proportional valve are respectively arranged at one end of the air inlet pipeline close to the gas source, the pressure detector is arranged at one end of the air inlet pipeline close to the gas chamber, and the flow detector is arranged at the air outlet pipeline, the pressure reducing valve, the flow proportional valve, the pressure detector and the flow detector are respectively connected to the processor, and the processor is used to perform operation control according to the above-mentioned pneumoperitoneum machine operation control method.

[0014] In some embodiments, the flow detector is a Holywell flow sensor, and / or the pressure detector is a Freescale pressure sensor.

[0015] In the above-mentioned insufflator operation control method, device and insufflator, when different parameter setting instructions are stored in the preset parameter database, the insufflator outputs gas in accordance with the preset gas flow rate and preset gas pressure values ​​required. In actual use, the user only needs to issue the corresponding parameter setting instructions to automatically match the preset gas flow rate and preset gas pressure values ​​suitable for the current operation object, thereby realizing gas output control. This can realize the one-key setting of the flow rate and pressure required for the operation of the insufflator, reduce the amount of operation by the user during use, and effectively improve the working efficiency and operating convenience of the insufflator. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the conventional technology, the drawings required for use in the embodiments or the conventional technology descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 This is a schematic diagram of a flow chart of a method for controlling the operation of an insufflator in one embodiment;

[0018] Figure 2It is a schematic diagram of the flow chart of the operating control method of the pneumoperitoneum machine in another embodiment;

[0019] Figure 3 It is a schematic diagram of the flow chart of the operating control method of the pneumoperitoneum machine in another embodiment;

[0020] Figure 4 This is a flow chart of a method for controlling the operation of an insufflator in one embodiment;

[0021] Figure 5 This is a schematic diagram of a gas flow regulation process in one embodiment;

[0022] Figure 6 This is a schematic diagram of a flow chart of a method for controlling the operation of an insufflator in yet another embodiment;

[0023] Figure 7 This is a schematic diagram of a display interface of a pneumoperitoneum machine in one embodiment;

[0024] Figure 8 It is a schematic diagram of the flow chart of the operating control method of the pneumoperitoneum machine in another embodiment;

[0025] Fig. 9 This is a schematic diagram of the structure of an operating control device of an insufflator in one embodiment;

[0026] Fig.10 It is a structural schematic diagram of an operation control device of an insufflator in another embodiment;

[0027] Fig.11 It is a structural schematic diagram of an operation control device of an insufflator in another embodiment;

[0028] Fig.12 Schematic diagram of the structure of an insufflator in one embodiment. DETAILED DESCRIPTION

[0029] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive.

[0030] See also Figure 1 , a pneumoperitoneum machine operation control method, comprising step S100, step S200 and step S300.

[0031] Step S100: receiving a parameter setting instruction sent by a user.

[0032] Specifically, the parameter setting instructions are generated according to the operation object, and the generated parameter setting instructions are different for operation objects corresponding to different body parameters. In actual use, the user outputs corresponding parameter setting instructions to the processor of the pneumoperitoneum machine according to the body parameters of the current operation object.

[0033] It is understood that the body parameters referred to in this application include but are not limited to body shape, and the operating object includes but is not limited to human body and animal body. In order to facilitate the understanding of the various embodiments of this application, the following explanations are all based on body parameters as body shape and the operating object as human body. In the actual setting process, the human body can be divided into different body shape levels based on age, gender, etc., and each body shape level corresponds to a parameter setting instruction. In the actual use of the pneumoperitoneum machine, the user can output the corresponding parameter setting instruction to the processor of the pneumoperitoneum machine according to the body size of the current operating object.

[0034] The specific number of body size levels is not unique. In a more detailed embodiment, the body size can be divided into three different levels: large, medium, and small, and each level corresponds to a parameter setting instruction. In other embodiments, the body size levels can be divided into four, five, or even more levels, and different selections can be made according to actual needs.

[0035] It should be pointed out that the processor is not limited to receiving parameter setting instructions in a unique manner, and it can be implemented by manual input or voice input by the user. Taking manual input as an example, the corresponding pneumoperitoneum machine is provided with an interactive device, and the user inputs the parameter setting instructions required for the current operation object through the interactive device after knowing the parameter setting instructions required for the current operation object. Depending on the specific type of the interactive device, the input method will also be different, which can be input by pressing different mechanical buttons, or by touching different virtual buttons, or by inputting in text form on the display screen, etc.

[0036] In a more detailed embodiment, the body size level includes three types: large, medium, and small, and the interactive device is used as the interactive device for explanation. The interactive device is connected to the processor, and the display interface of the display device displays three different virtual buttons of large, medium, and small. When the body size of the current operation object is large, touching the "large" button can complete the sending of the parameter setting instruction; when the body size of the current operation object is medium, touching the "medium" button can complete the sending of the parameter setting instruction; when the body size of the current operation object is small, touching the "small" button can complete the sending of the parameter setting instruction.

[0037] Step S200, obtaining a preset gas flow rate value and a preset gas pressure value that match the current operation object according to the parameter setting instruction and the preset parameter database.

[0038] Specifically, the preset parameter database stores the gas flow preset values ​​and gas pressure preset values ​​required for different parameter setting instructions. The processor has a storage function, which pre-stores two operating parameters of the flow value and pressure value required by the insufflator under different parameter instructions, namely, the gas flow preset value and the gas pressure preset value.

[0039] For ease of understanding, the explanation is also based on the three body types of large, medium and small. When the user presses or touches the "large" button, the processor will receive the first parameter setting instruction, and then match it in the preset parameter database to obtain the corresponding gas flow preset value and gas pressure preset value. When the user presses or touches the "medium" button, the processor will receive the second parameter setting instruction, and then match it in the preset parameter database to obtain the corresponding gas flow preset value and gas pressure preset value. When the user presses or touches the "small" button, the processor will receive the third parameter setting instruction, and then match it in the preset parameter database to obtain the corresponding gas flow preset value and gas pressure preset value.

[0040] However, the sizes of the gas flow preset values ​​and the gas pressure preset values ​​are not unique under different body size levels. In a more detailed embodiment, the gas flow preset value corresponding to the first parameter setting instruction can be set to 15L / min, and the gas pressure preset value can be 11mmHg; and / or the gas flow preset value corresponding to the second parameter setting instruction can be set to 13L / min, and the gas pressure preset value can be 8mmHg; and / or the gas flow preset value corresponding to the third parameter setting instruction can be set to 12L / min, and the gas pressure preset value can be 6mmHg.

[0041] Furthermore, in other embodiments, even if the body size level is the same, the gas flow preset value and the gas pressure preset value may be different according to different operation objects. For example, when human bodies and animal bodies are divided into three body size levels, the gas flow preset value and gas pressure preset value corresponding to each body size level may be set differently, or in different animal bodies, even if the body size level is the same, the gas flow preset value and gas pressure preset value may be set differently.

[0042] Step S300, controlling the gas output of the insufflator according to the preset gas flow rate and the preset gas pressure.

[0043] Specifically, after the processor obtains the preset gas flow rate and gas pressure values ​​required by the current operation object, it only needs to control the operation of the insufflator so that the gas output by the insufflator to the current operation object meets the needs of the current operation object.

[0044] In the above-mentioned insufflator operation control method, when different parameter setting instructions are stored in the preset parameter database, the insufflator outputs gas in accordance with the preset gas flow rate and gas pressure values ​​required. In actual use, the user only needs to issue the corresponding parameter setting instructions to automatically match the preset gas flow rate and gas pressure values ​​suitable for the current operation object, thereby realizing gas output control. This can realize the one-key setting of the flow rate and pressure required for the operation of the insufflator, reduce the amount of operation by the user during use, and effectively improve the working efficiency and operating convenience of the insufflator.

[0045] See also Figure 2 In some embodiments, step S300 includes step S310 and step S320.

[0046] Step S310, obtaining the actual gas flow and actual gas pressure when the pneumoperitoneum machine starts to output gas.

[0047] Step S320, adjusting the output gas of the insufflator according to the preset gas flow value and the preset gas pressure value, so that the actual gas pressure is less than or equal to the preset gas pressure value, and the actual gas flow is consistent with the preset gas flow value.

[0048] Specifically, after the user sets the preset gas flow rate and gas pressure values ​​that match the current operation object with one click, the insufflator will start running, introduce the gas generated by the gas source (specifically, it can be oxygen, carbon dioxide and other gases), and start to input gas to the operation object. Correspondingly, gas flow will occur in the insufflator at this time, and the real-time actual gas flow rate and actual gas pressure can be obtained through the corresponding acquisition device. After that, feedback adjustment is performed in combination with the preset gas flow rate and the preset gas pressure value, and finally the insufflator operates with a flow rate of the preset gas flow rate and a pressure less than or equal to the preset gas pressure value, and inputs gas to the operation object.

[0049] It is understandable that the specific type of the acquisition device is not unique. In one embodiment, a pressure detector can be provided on the air inlet pipeline of the insufflator to detect the actual gas pressure, and a flow detector can be provided on the air outlet pipeline of the insufflator to detect the actual gas flow. The flow detector and the pressure detector are respectively connected to the processor in communication, and the actual gas flow and actual gas pressure detected and collected can be sent to the processor in real time, so as to make corresponding operation adjustments of the insufflator.

[0050] It should be noted that the specific types of the pressure detector and the flow detector are not unique. In one embodiment, the pressure detector may be a pressure sensor, and the flow detector may be a flow sensor.

[0051] Furthermore, in a more detailed embodiment, the flow sensor is a Holywell flow sensor, and / or the pressure sensor is a FreeScale pressure sensor. The solution of this embodiment can sample the actual gas flow and actual gas pressure in real time with high precision, and the accuracy can reach ±1L / min when the flow is ≤10L / min, and when the flow is >10L / min, the error does not exceed ±10%; the pressure error does not exceed 1mmHg.

[0052] See also Figure 3 In some embodiments, step S320 includes step S321, step S322 and step S323.

[0053] Step S321, determining whether the actual gas pressure is less than or equal to a preset gas pressure value.

[0054] Step S322: If the actual gas pressure is less than or equal to the preset gas pressure value, the opening of the flow proportional valve of the pneumoperitoneum machine is adjusted to make the actual gas flow consistent with the preset gas flow value.

[0055] Step S323: If the actual gas pressure is greater than the preset gas pressure value, the pressure reducing valve of the pneumoperitoneum machine is controlled to open for pressure relief, and the process returns to step S321.

[0056] For details, please refer to Figure 4 When adjusting the operation of the insufflator, first detect and adjust the gas pressure, adjust the actual gas pressure to less than or equal to the preset gas pressure value, and then adjust the gas flow rate. Through feedback adjustment, adjust the actual gas flow rate to be consistent with the preset gas flow rate, so that the operation of the insufflator is consistent with actual needs.

[0057] The scheme of this embodiment adjusts the actual gas pressure through the pressure reducing valve. When the actual gas pressure is too high, the pressure reducing valve is opened to release the gas pressure, thereby adjusting the actual gas pressure to less than or equal to the preset gas pressure value. The flow rate is adjusted through the flow proportional valve. By adjusting the parameters such as the opening of the flow proportional valve, the gas flow rate in the gas outlet pipeline can be changed until it is consistent with the preset gas flow rate value.

[0058] In one embodiment, see Figure 5 In some embodiments, the step of adjusting the opening of the flow proportional valve of the pneumoperitoneum machine to make the actual gas flow consistent with the preset gas flow value includes step S510 and step S520.

[0059] Step S510, determine whether the difference between the actual gas flow and the preset gas flow is less than the preset difference threshold. Step S520, if less than the preset difference threshold, fine-tune the flow proportional valve through a linear regression algorithm to make the actual gas flow consistent with the preset gas flow.

[0060] Specifically, when the processor adjusts the gas flow, if the actual gas flow is close to the preset gas flow value, that is, the difference between the two is less than the preset difference threshold, the flow proportional valve will be fine-tuned through a linear regression algorithm to adjust the actual gas flow to be consistent with the preset gas flow value, which has the advantage of high control accuracy.

[0061] It should be noted that the implementation method of the linear regression algorithm is not unique. In a more detailed embodiment, it can be implemented in the following manner.

[0062] In the scheme of this embodiment, the mean square error (that is, the least square method) is used as the loss function of the linear regression algorithm. In the scheme of this embodiment, micro-flow control is specifically achieved by controlling the inflation time variable of the flow proportional valve. After the gas chamber of the pneumoperitoneum machine is designed, the flow proportional valve can be opened to the minimum ratio, and then a set of data is collected every 10ms according to different inflation times from 1ms to 2000ms, and it is defined as n sample data (xi, yi), where i = 1, 2, 3...n. This set of sample data can be the mean obtained by multiple experimental collections during actual operation. Linear regression assumes that there is a linear relationship between the target value and the feature, that is, a one-variable first-order equation that satisfies y = ax + b. A loss function y' = Wx + b can be constructed, where W is the predicted inflation time, and the set of data of the independent variable x and the dependent variable y is the previous sample, which is known data. If we want to get the new x and its corresponding y, we need to solve the linear model y'=Wx+b based on the known data points on this constructed functional relationship. The values ​​of W and b when the function is minimum, we use the most common least squares method to solve W and b, and differentiate L(w,b) with respect to w and b respectively. The expression of L is the loss function, that is, the mean square error. The algorithm ultimately finds a set of data with the smallest residual sum of squares as the time parameter for the micro-control flow proportional valve to inflate.

[0063] Please continue reading Figure 5 In some embodiments, after step S510, the method further includes step S530 and step S540.

[0064] Step S530: If the actual gas flow is not less than the preset difference threshold, determine whether the actual gas flow is greater than the preset gas flow value. If the actual gas flow is greater than the preset gas flow value, return to step S310. Step S540: If the actual gas flow is less than the preset gas flow value, adjust the opening of the flow proportional valve of the abdominal machine. And return to step S510.

[0065] Specifically, when the pneumoperitoneum machine analyzes and judges that the gas pressure is less than or equal to the preset value, there may be a situation where the difference between the two is greater than or equal to the preset difference threshold. At this time, it means that the difference between the two is too large. In order to make the actual gas flow rate consistent with the preset value of the gas flow rate more quickly, the opening of the flow proportional valve is first regulated. That is, in the scheme of this embodiment, when the difference between the actual gas flow rate value and the preset value of the gas flow rate is large, the processor first performs a rough adjustment on the flow proportional valve. When the actual gas flow rate is too large, it directly returns to determine whether the actual gas pressure is less than or equal to the preset value of the gas pressure, and re-detects and regulates the actual gas pressure.

[0066] When the actual gas flow rate is small, the opening is increased to increase the gas flow rate until the difference between the actual gas flow rate and the preset gas flow rate is less than or equal to the preset difference threshold, and then the flow proportional valve is fine-tuned to change the time parameter of the flow proportional valve inflation so that the actual gas flow rate of the final output gas is consistent with the preset gas flow rate.

[0067] It can be understood that in another embodiment, when the actual gas flow is too large, the opening of the flow proportional valve can also be regulated to reduce the opening of the flow proportional valve so that the difference between the final actual gas flow and the preset value of the gas flow is reduced to less than the preset difference threshold.

[0068] See also Figure 6 In some embodiments, after step S310, the method further includes step S330.

[0069] Step S330, outputting the actual gas flow, the actual gas pressure, the preset gas flow value and the preset gas pressure value to the display device of the pneumoperitoneum machine for display.

[0070] For details, please refer to Figure 7 The insufflator is equipped with a display device. During actual operation, it can display the preset gas flow rate and gas pressure values ​​set by the insufflator. At the same time, it can also display the real-time actual gas flow rate and actual gas pressure at the same time according to the detection results of the flow detector and the pressure detector, so that the user can know the operating status of the insufflator in time.

[0071] It can be understood that in one embodiment, the flow detector of the pneumoperitoneum machine includes a first flow detector and a second flow detector. The pneumoperitoneum machine is provided with a gas chamber, an air inlet pipeline and an air outlet pipeline. The air inlet pipeline and the air outlet pipeline are both connected to the gas chamber. The number of air outlet pipelines can be set to more than two. The air path branches are integrated in the gas chamber. Through a gas airflow channel, the gas flow can be proportionally diverted and output according to the size of the pores, and transported through different air outlet pipelines. The first flow detector is arranged in the air inlet pipeline, and is used to collect the total flow value and output it to the processor, which is sent to the display device for display through the processor. The second flow detector is arranged in the air outlet pipeline to detect the actual gas flow of the corresponding air outlet pipeline.

[0072] See also Figure 8 In some embodiments, after step S310, the method further includes step S340.

[0073] Step S340, sending the actual gas flow and the actual gas pressure to the cloud server for storage.

[0074] Specifically, in the solution of this embodiment, the processor has a communication module that can communicate with the cloud server. After the processor receives data from the flow monitor and the pressure detector, it can upload it to the cloud for subsequent analysis and mining.

[0075] See also Fig. 9 , an insufflator operation control device, comprising an instruction receiving module 100, a parameter matching module 200 and an operation adjustment module 300. The instruction receiving module 100 is used to receive a parameter setting instruction sent by a user; the parameter matching module 200 is used to obtain a gas flow preset value and a gas pressure preset value matching a current operation object according to the parameter setting instruction and a preset parameter database; the operation adjustment module 300 is used to control the gas output of the insufflator according to the gas flow preset value and the gas pressure preset value.

[0076] In some embodiments, the operation adjustment module 300 is also used to obtain the actual gas flow and actual gas pressure when the pneumoperitoneum machine starts to output gas; the output gas of the pneumoperitoneum machine is adjusted according to the gas flow preset value and the gas pressure preset value so that the actual gas pressure is less than or equal to the gas pressure preset value, and the actual gas flow is consistent with the gas flow preset value.

[0077] In some embodiments, the operation adjustment module 300 is also used to determine whether the actual gas pressure is less than or equal to the preset gas pressure value; if the actual gas pressure is less than or equal to the preset gas pressure value, the opening of the flow proportional valve of the insufflator is adjusted to make the actual gas flow consistent with the preset gas flow value; if the actual gas pressure is greater than the preset gas pressure value, the pressure reducing valve of the insufflator is controlled to open for pressure relief.

[0078] In some embodiments, the operation adjustment module 300 is also used to determine whether the difference between the actual gas flow and the preset gas flow value is less than a preset difference threshold; if it is less than the preset difference threshold, the flow proportional valve is fine-tuned through a linear regression algorithm to make the actual gas flow consistent with the preset gas flow value.

[0079] In some embodiments, the operation adjustment module 300 is also used to determine whether the actual gas flow is greater than the gas flow preset value if it is not less than the preset difference threshold; if the actual gas flow is greater than the gas flow preset value, return to execute the operation of obtaining the actual gas flow and the actual gas pressure when the pneumoperitoneum machine starts to output gas; if the actual gas flow is less than the gas flow preset value, adjust the opening of the flow proportional valve of the pneumoperitoneum machine, and return to execute the operation of determining whether the difference between the actual gas flow and the gas flow preset value is less than the preset difference threshold.

[0080] See also Fig.10 In some embodiments, after the adjustment module 300 is run, the device further includes a display module 400. The display module 400 is used to output the actual gas flow, the actual gas pressure, the preset gas flow value and the preset gas pressure value to the display device of the pneumoperitoneum machine for display.

[0081] See also Fig.11 In some embodiments, after the adjustment module 300 is run, the device further includes a cloud upload module 500. The cloud upload module 500 is used to send the actual gas flow and the actual gas pressure to the cloud server for storage.

[0082] For the specific definition of the pneumoperitoneum machine operation control device, please refer to the definition of the pneumoperitoneum machine operation control method mentioned above, which will not be repeated here. Each module in the above-mentioned pneumoperitoneum machine operation control device can be implemented in whole or in part by software, hardware and a combination thereof. The above-mentioned modules can be embedded in or independent of the processor in the computer device in the form of hardware, or can be stored in the memory of the computer device in the form of software, so that the processor can call and execute the operations corresponding to the above modules.

[0083] When different parameter setting instructions are stored in the preset parameter database of the above-mentioned insufflator operation control device, the insufflator outputs gas in accordance with the preset gas flow rate and gas pressure values ​​required. In actual use, the user only needs to issue the corresponding parameter setting instructions to automatically match the preset gas flow rate and gas pressure values ​​suitable for the current operation object, thereby realizing gas output control. This can realize the one-key setting of the flow rate and pressure required for the operation of the insufflator, reduce the amount of operation by the user during use, and effectively improve the working efficiency and operating convenience of the insufflator.

[0084] See also Fig.12A pneumoperitoneum machine includes: an air inlet pipeline 10, a pressure reducing valve 20, a flow proportional valve 30, a gas chamber 40, an air outlet pipeline 50, a pressure detector 60, a flow detector 70 and a processor (not shown in the figure), the air inlet pipeline 10 is used to connect to a gas source, the air inlet pipeline 10 is connected to the gas chamber 40, the gas chamber 40 is connected to the air outlet pipeline 50, the pressure reducing valve 20 and the flow proportional valve 30 are respectively arranged at one end of the air inlet pipeline 10 close to the gas source, the pressure detector 60 is arranged at one end of the air inlet pipeline 10 close to the gas chamber 40, the flow detector 70 is arranged at the air outlet pipeline 50, the pressure reducing valve 20, the flow proportional valve 30, the pressure detector 60 and the flow detector are respectively connected to the processor, and the processor is used to perform operation control according to the above-mentioned pneumoperitoneum machine operation control method.

[0085] Specifically, the parameter setting instructions are generated according to the operation object, and the generated parameter setting instructions are different for operation objects corresponding to different body parameters. In actual use, the user outputs corresponding parameter setting instructions to the processor of the pneumoperitoneum machine according to the body parameters of the current operation object.

[0086] The preset parameter database stores the gas flow preset values ​​and gas pressure preset values ​​required for different parameter setting instructions. The processor has a storage function, which pre-stores two operating parameters of the gas flow value and pressure value required for the insufflator under different parameter instructions, namely the gas flow preset value and the gas pressure preset value.

[0087] After the processor obtains the preset gas flow rate and gas pressure values ​​required by the current operation object, it only needs to control the operation of the insufflator so that the gas output by the insufflator to the current operation object meets the needs of the current operation object.

[0088] After the user sets the preset gas flow rate and gas pressure values ​​that match the current operation object with one click, the insufflator will start running, introduce the gas generated by the gas source (specifically, it can be oxygen, carbon dioxide and other gases), and start to input gas to the operation object. Correspondingly, gas flow will occur in the insufflator at this time, and the real-time actual gas flow rate and actual gas pressure can be obtained through the corresponding acquisition device. After that, feedback adjustment is performed in combination with the preset gas flow rate and the preset gas pressure value, and finally the insufflator operates with a flow rate of the preset gas flow rate and a pressure less than or equal to the preset gas pressure value, and inputs gas to the operation object.

[0089] The specific type of the acquisition device is not unique. The actual gas pressure can be detected by setting a pressure detector 60 on the inlet pipeline 10 of the insufflator, and the actual gas flow can be detected by setting a flow detector 70 on the outlet pipeline 50 of the insufflator. The flow detector 70 and the pressure detector 60 are respectively connected to the processor for communication, and the actual gas flow and actual gas pressure detected and collected can be sent to the processor in real time, so as to make corresponding operation adjustments of the insufflator.

[0090] It should be noted that the specific types of the pressure detector 60 and the flow detector 70 are not unique. In one embodiment, the pressure detector 60 may be a pressure sensor, and the flow detector 70 may be a flow sensor.

[0091] When adjusting the operation of the insufflator, the gas pressure is first detected and adjusted, and the actual gas pressure is adjusted to be less than or equal to the preset gas pressure value. The gas flow is then adjusted, and the actual gas flow is adjusted to be consistent with the preset gas flow value through feedback adjustment, so that the operation of the insufflator is consistent with actual needs.

[0092] The scheme of this embodiment adjusts the actual gas pressure through the pressure reducing valve 20. When the actual gas pressure is too high, the pressure reducing valve 20 is opened to release the gas pressure, thereby adjusting the actual gas pressure to less than or equal to the preset gas pressure value. The flow rate is adjusted through the flow proportional valve 30. By adjusting the parameters such as the opening of the flow proportional valve 30, the gas flow rate in the gas outlet pipeline 50 can be changed until it is consistent with the preset gas flow rate value.

[0093] When different parameter setting instructions are stored in the preset parameter database of the above-mentioned insufflator, the insufflator outputs gas in accordance with the preset gas flow rate and gas pressure values ​​required. In actual use, the user only needs to issue the corresponding parameter setting instructions to automatically match the preset gas flow rate and gas pressure values ​​suitable for the current operation object, thereby realizing gas output control. This can realize the one-key setting of the flow rate and pressure required for the operation of the insufflator, reduce the amount of operation by the user during use, and effectively improve the working efficiency and operating convenience of the insufflator.

[0094] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0095] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A pneumoperitoneum machine operation control device, characterized in that: include: An instruction receiving module, used for receiving parameter setting instructions sent by a user; A parameter matching module is used to obtain a preset gas flow rate value and a preset gas pressure value that match the current operation object according to the parameter setting instruction and the preset parameter database; The preset parameter database stores preset gas flow values ​​and preset gas pressure values ​​required by different parameter setting instructions; An operation regulating module is used to control the gas output of the insufflator according to the preset gas flow rate value and the preset gas pressure value; The operation adjustment module is also used to obtain the actual gas flow and actual gas pressure when the pneumoperitoneum machine starts to output gas; determine whether the actual gas pressure is less than or equal to the preset gas pressure value; if the actual gas pressure is less than or equal to the preset gas pressure value, determine whether the difference between the actual gas flow and the preset gas flow value is less than a preset difference threshold; If the difference is less than the preset difference threshold, the flow proportional valve is fine-tuned by a linear regression algorithm to make the actual gas flow consistent with the preset gas flow value; If the actual gas pressure is greater than the preset gas pressure value, control the pressure reducing valve of the pneumoperitoneum machine to open for pressure relief, and return to execute the operation of determining whether the actual gas pressure is less than or equal to the preset gas pressure value; If it is not less than the preset difference threshold, determine whether the actual gas flow is greater than the gas flow preset value; if the actual gas flow is greater than the gas flow preset value, return to the step of determining whether the actual gas pressure is less than or equal to the gas pressure preset value; if the actual gas flow is less than the gas flow preset value, increase the opening of the flow proportional valve of the pneumoperitoneum machine, and return to the step of determining whether the difference between the actual gas flow and the gas flow preset value is less than the preset difference threshold.

2. The pneumoperitoneum machine operation control device according to claim 1, characterized in that: It also includes a display module, which is used to output the actual gas flow, the actual gas pressure, the gas flow preset value and the gas pressure preset value to a display device of the pneumoperitoneum machine for display.

3. The pneumoperitoneum machine operation control device according to claim 1, characterized in that: After the operation adjustment module, a cloud upload module is also included, and the cloud upload module is used to send the actual gas flow and the actual gas pressure to the cloud server for storage.

4. A pneumoperitoneum machine, characterized in that: include: An air inlet pipeline, a pressure reducing valve, a flow proportional valve, a gas bin, an air outlet pipeline, a pressure detector, a flow detector and a processor, wherein the air inlet pipeline is used to connect to a gas source, the air inlet pipeline is connected to the gas bin, the gas bin is connected to the air outlet pipeline, the pressure reducing valve and the flow proportional valve are respectively arranged at one end of the air inlet pipeline close to the gas source, the pressure detector is arranged at one end of the air inlet pipeline close to the gas bin, the flow detector is arranged at the air outlet pipeline, the pressure reducing valve, the flow proportional valve, the pressure detector and the flow detector are respectively connected to the processor, and the processor is used to receive a parameter setting instruction sent by a user; obtain a gas flow preset value and a gas pressure preset value matching the current operation object according to the parameter setting instruction and the preset parameter database; control the gas output of the pneumoperitoneum machine according to the gas flow preset value and the gas pressure preset value; Wherein, the preset parameter database stores the gas flow preset values ​​and gas pressure preset values ​​required corresponding to different parameter setting instructions; The step of controlling the insufflator to output gas according to the preset gas flow rate and the preset gas pressure value comprises: obtaining the actual gas flow rate and the actual gas pressure when the insufflator is turned on to output gas; judging whether the actual gas pressure is less than or equal to the preset gas pressure value; if the actual gas pressure is less than or equal to the preset gas pressure value, judging whether the difference between the actual gas flow rate and the preset gas flow rate is less than a preset difference threshold; if it is less than the preset difference threshold, fine-tuning the flow proportional valve through a linear regression algorithm to make the actual gas flow rate consistent with the preset gas flow rate; if the actual gas pressure is greater than the preset gas pressure value, controlling the pressure reducing valve of the insufflator to open for pressure relief, and returning to the step of judging whether the actual gas pressure is less than or equal to the preset gas pressure value; The processor is also used to: if it is not less than the preset difference threshold, determine whether the actual gas flow is greater than the gas flow preset value; if the actual gas flow is greater than the gas flow preset value, return to the step of determining whether the actual gas pressure is less than or equal to the gas pressure preset value; if the actual gas flow is less than the gas flow preset value, increase the opening of the flow proportional valve of the pneumoperitoneum machine, and return to the step of determining whether the difference between the actual gas flow and the gas flow preset value is less than the preset difference threshold.

5. The pneumoperitoneum machine according to claim 4, characterized in that: The processor is also used to: output the actual gas flow, the actual gas pressure, the gas flow preset value and the gas pressure preset value to the display device of the pneumoperitoneum machine for display.

6. The pneumoperitoneum machine according to claim 4, characterized in that: The processor is also used to send the actual gas flow and the actual gas pressure to a cloud server for storage.

7. The pneumoperitoneum machine according to claim 4, characterized in that: The flow detector is a Holywell flow sensor, and / or the pressure detector is a Freescale pressure sensor.

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