Pneumostasis machine gas supply system

Abstract

The utility model provides a kind of gas insufflation apparatus gas supply system.The gas insufflation apparatus gas supply system includes main gas path, standby gas path, shunt valve and controller.Shunt valve's air inlet is used to communicate gas source, shunt valve's first gas outlet communicates the air inlet of main gas path, shunt valve's second gas outlet communicates the air inlet of standby gas path.First filter and first pollutant detection piece are sequentially provided on main gas path along gas conveying direction, first filter is used to filter the gas flowing, and first pollutant detection piece is used to detect the first pollution concentration of filtered gas.The air outlet of standby gas path is communicated with the air outlet of first pollutant detection piece, and second filter is provided on standby gas path, and second filter is used to filter the gas flowing.In this way, not only can the service life of first filter be improved, the overhaul cycle of gas insufflation apparatus gas supply system be extended, but also uninterrupted supply of filtered gas can be realized.

Description

Technical Field

[0001] This utility model relates to the technical field of laparoscopic interventional therapy, specifically to an air supply system for an insufflator. Background Technology

[0002] Laparoscopic surgery, with its minimally invasive nature and reduced intraoperative bleeding, is gaining popularity among doctors and patients and is becoming the preferred choice for many surgical procedures. Medical insufflation machines are specialized devices used to establish and maintain pneumoperitoneum in laparoscopic surgery. These machines infuse the abdominal cavity with medical-grade carbon dioxide gas, which separates the abdominal wall from the abdominal organs, creating a surgical space.

[0003] Among these factors, the cleanliness of the gas output by the insufflator is particularly important for the life safety of patients undergoing abdominal surgery. Insufflators often use the hospital's central gas source or gas cylinders as their gas source. If the gas from the central gas source or gas cylinders is contaminated, such as by bacterial invasion or the intrusion of impurity gases, it can easily cause secondary harm to the patient.

[0004] Currently, filters are often connected to the input end of the insufflator to reduce the risk of contaminant intrusion. However, if the filter element becomes contaminated during surgery, it needs to be replaced manually in a timely manner. Otherwise, it will affect the subsequent use of the insufflator. Replacing the filter element during surgery will also greatly affect the progress of the surgery and increase the risk of surgery. Utility Model Content

[0005] In order to at least partially solve the problems existing in the prior art, according to one aspect of the present invention, an air supply system for an insufflator is provided.

[0006] The pneumoperitoneum machine's air supply system includes a main air circuit, a backup air circuit, a diverter valve, and a controller. The diverter valve's inlet connects to the air source, its first outlet connects to the main air circuit's inlet, and its second outlet connects to the backup air circuit's inlet. The main air circuit's outlet connects to the target gas source. Along the air delivery direction, a first filter and a first contaminant detector are sequentially installed on the main air circuit. The first filter filters the flowing gas, and the first contaminant detector detects the initial contaminant concentration in the filtered gas. The backup air circuit's outlet connects to the outlet of the first contaminant detector. A second filter is installed on the backup air circuit to filter the flowing gas. The controller is communicatively connected to both the diverter valve and the first contaminant detector.

[0007] This invention relates to an insufflator gas supply system. Gas from the gas source flows to the target patient via a main gas path. A first filter is installed in the main gas path to filter the flowing gas. A first contaminant detector measures the concentration of a first contaminant in the filtered gas. A high concentration indicates a deterioration in the performance of the first filter, meaning the filtered gas cannot meet the requirements. In this case, the controller closes the main gas path and opens a backup gas path, allowing gas to flow to the backup path and be filtered by a second filter. This not only extends the lifespan of the first filter and the maintenance cycle of the insufflator gas supply system but also ensures an uninterrupted supply of filtered gas. When the insufflator gas supply system is used in laparoscopic surgery, it can switch to the backup gas path when the first filter's filtration effect is insufficient, ensuring the smooth progress of the surgery and effectively reducing surgical risks.

[0008] For example, the main air path is provided with a first disinfection component at the first filter element, which is communicatively connected to the controller, for disinfecting contaminants in the first filter element.

[0009] For example, a second pollutant detection element is also provided in the backup gas line, which is connected in communication with the controller. The second pollutant detection element is located downstream of the second filter element along the gas delivery direction. The second pollutant detection element is used to detect the second pollutant concentration of the gas after it has been filtered by the second filter element.

[0010] For example, a check valve is also provided in the backup gas line, and the check valve is located downstream of the second pollutant detection element along the gas transmission direction.

[0011] For example, the backup air path is provided with a second disinfection component at the second filter element, which is in communication with the controller, for disinfecting contaminants in the second filter element.

[0012] For example, the air inlet of the diverter valve is connected to the air source through an air supply line, and pressure reducing element and pressure relieving element are arranged sequentially along the air supply direction on the air supply line.

[0013] For example, the pneumoperitoneum machine's gas supply system also includes a gas delivery path, which is connected downstream of both the main gas path and the backup gas path. The gas delivery path is used to supply gas from the main gas path or the backup gas path to the gas-supplying object in the future. A clamp valve that is in communication with the controller is provided on the gas delivery path to open or close the gas delivery path.

[0014] For example, a proportional valve and a flow sensor that are connected to the controller are also provided in the gas transmission line. The proportional valve and the flow sensor are sequentially arranged upstream of the pinch valve along the gas transmission direction.

[0015] For example, an anti-backflow device is also provided in the gas transmission line. The anti-backflow device is located downstream of the clamp valve in the gas transmission direction. The anti-backflow device is used to prevent gas from flowing into the gas transmission line from the gas supply target.

[0016] For example, a fluid sensor that communicates with the controller is also provided in the gas transmission line. The fluid sensor is located between the pinch valve and the anti-backflow device. The fluid sensor is used to detect the gas parameters flowing through the gas transmission line and / or to detect whether the gas at the gas supply object flows into the gas transmission line.

[0017] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this utility model more obvious and understandable, specific embodiments of this utility model are given below. Attached Figure Description

[0018] The above and other objects, features, and advantages of this utility model will become more apparent from the more detailed description of the embodiments thereof in conjunction with the accompanying drawings. The drawings are provided to further illustrate the embodiments of this utility model and form part of the specification. They are used together with the embodiments of this utility model to explain the utility model and do not constitute a limitation thereof. In the drawings, the same reference numerals generally represent the same components or steps.

[0019] Figure 1 A simplified structural diagram of a pneumoperitoneum air supply system according to an exemplary embodiment of the present invention is shown.

[0020] Figure 2 A simplified second structural diagram of an air supply system for an insufflator according to an exemplary embodiment of the present invention is shown;

[0021] Figure 3 A first flowchart of a control method for an air supply system for an insufflator according to an exemplary embodiment of the present invention is shown.

[0022] Figure 4 A second flowchart of a control method for an air supply system for an insufflator according to an exemplary embodiment of the present invention is shown.

[0023] Figure 5 A third flowchart of a control method for an air supply system for an insufflator according to an exemplary embodiment of the present invention is shown.

[0024] Figure 6 A fourth flowchart of a control method for an insufflator air supply system according to an exemplary embodiment of the present invention is shown.

[0025] The components indicated by the reference numerals in the figures are as follows:

[0026] 1. Main gas supply line; 11. First disinfection component; 12. First filter component; 13. First contaminant detection component; 2. Backup gas supply line; 21. Second filter component; 22. Second contaminant detection component; 23. Check valve; 24. Second disinfection component; 3. Diverter valve; 4. Controller; 5. Gas supply line; 51. Pressure reducing component; 52. Pressure relief component; 53. First pressure relief gas line; 54. Silencing device; 55. First pressure detection component; 56. Gas filter component; 6. Gas delivery line; 61. Proportional valve; 62. Flow sensor; 63. Pinch valve; 64. Backflow prevention device; 65. Fluid sensor; 66. Switch valve; 67. Second pressure relief gas line; 68. Second pressure detection component; 69. Third pressure detection component; 7. Gas source; 8. Gas supply target; 91. Display device; 92. Button device; 93. Audible alarm device; 94. Light alarm device; 95. Exhaust device. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model more apparent, exemplary embodiments according to this utility model will be described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are merely some embodiments of this utility model, and not all embodiments of this utility model. It should be understood that this utility model is not limited to the exemplary embodiments described herein. Based on the embodiments of this utility model described herein, all other embodiments obtained by those skilled in the art without inventive effort should fall within the protection scope of this utility model.

[0028] In the following description, numerous details are provided to enable a thorough understanding of the present invention. However, those skilled in the art will appreciate that the following description merely illustrates preferred embodiments of the present invention, which may be practiced without one or more of these details. Furthermore, to avoid confusion with the present invention, some technical features well-known in the art have not been described in detail.

[0029] To fully understand the embodiments of this utility model, a detailed structure will be presented in the following description. Obviously, the implementation of the embodiments of this utility model is not limited to the specific details familiar to those skilled in the art. Preferred embodiments of this utility model are described in detail below; however, in addition to these detailed descriptions, this utility model may have other embodiments.

[0030] One embodiment of this utility model provides an air supply system for an insufflator, which not only extends the service life of the first filter element 12 but also ensures an uninterrupted supply of filtered gas. The following will describe in detail an air supply system for an insufflator according to an embodiment of this utility model, with reference to the accompanying drawings.

[0031] like Figure 1 and Figure 2 As shown, the pneumoperitoneum machine's air supply system includes a main air path 1, a backup air path 2, a diversion valve 3, and a controller 4. The inlet of the diversion valve 3 connects to the air source 7, the first outlet of the diversion valve 3 connects to the inlet of the main air path 1, and the second outlet of the diversion valve 3 connects to the inlet of the backup air path 2. The outlet of the main air path 1 connects to the gas supply object 8. A first filter element 12 and a first contaminant detector 13 are sequentially arranged along the air delivery direction on the main air path 1. The first filter element 12 filters the flowing gas, and the first contaminant detector 13 detects the first contaminant concentration in the filtered gas. The outlet of the backup air path 2 connects to the outlet of the first contaminant detector 13. A second filter element 21 is arranged on the backup air path 2, which filters the flowing gas. The controller 4 is communicatively connected to the diversion valve 3 and the first contaminant detector 13.

[0032] The inlet of the diversion valve 3 can be connected to the air source 7. The first outlet and the second outlet of the diversion valve 3 can be connected to the main air path 1 and the backup air path 2 respectively. Under the control of the controller 4, the diversion valve 3 can connect the main air path 1 or the backup air path 2 to the air source 7 respectively.

[0033] When bacteria or vapor are present in the gas in the gas source 7, the first filter 12 can filter the gas flowing through the main gas path 1 to prevent the bacteria or vapor in the gas from flowing to the gas supply object 8 and thus causing damage or impact to the gas supply object 8. Similarly, the second filter 21 can filter the gas flowing through the backup gas path 2, which will not be described in detail here.

[0034] The first pollutant detection element 13 can detect the gas filtered by the first filter element 12 to determine the first pollutant concentration in the filtered gas. When the first pollutant concentration is high, it can be determined that the performance of the first filter element 12 has deteriorated and cannot meet the usage requirements. At this time, the controller 4 can control the diversion valve 3 to close the main gas line 1 and open the backup gas line 2, so as to use the second filter element 21 on the backup gas line 2 to filter the gas flowing to the gas supply object 8.

[0035] It should be noted that the controller 4 can be constructed using electronic components such as digital logic circuits, or implemented using processor chips such as microcontrollers, microprocessors, programmable logic controllers (PLCs), digital signal processors (DSPs), field-programmable gate arrays (FPGAs), programmable logic arrays (PLAs), and application-specific integrated circuits (ASICs) and their peripheral circuits.

[0036] In some other embodiments, the controller 4 can also be connected to the display device 91 and the button device 92 respectively. The display device 91 can display the value of the first pollutant concentration detected by the first pollutant detector 13, and the operator can switch between the main gas path 1 and the backup gas path 2 through the button device 92, which greatly improves the convenience, flexibility and intelligence of the pneumoperitoneum air supply system.

[0037] In some other embodiments, the controller 4 may also be communicatively connected to the audible alarm device 93 or the visual alarm device 94, respectively, to promptly alert the operator when the value of the first pollutant concentration detected by the first pollutant detector 13 is high and the performance of the first filter element 12 deteriorates. Of course, the operator may also be alerted by vibration, and this application does not specifically limit this method.

[0038] In some other embodiments, the controller 4 can also be communicatively connected to the exhaust device 95. When performing laparoscopic surgery using the pneumoperitoneum machine's air supply system, waste gas is easily generated at the pneumoperitoneum 8. The exhaust device 95 can expel the waste gas in the abdominal cavity of the pneumoperitoneum 8 under the control of the controller 4, effectively improving the safety of the surgery.

[0039] This invention relates to an insufflator gas supply system. Gas from the gas source 7 flows to the target gas 8 via the main gas path 1. The main gas path 1 is equipped with a first filter 12 to filter the flowing gas. A first contaminant detector 13 detects the concentration of a first contaminant in the filtered gas. A high concentration indicates a decrease in the performance of the first filter 12, meaning the filtered gas cannot meet the requirements. In this case, the controller 4 controls the diversion valve 3 to close the main gas path 1 and open the backup gas path 2, allowing gas to flow to the backup gas path 2 and be filtered by the second filter 21. This not only extends the lifespan of the first filter 12 and the maintenance cycle of the insufflator gas supply system but also ensures an uninterrupted supply of filtered gas. When the insufflator gas supply system is used in laparoscopic surgery, it can switch to the backup gas path 2 when the filtration effect of the first filter 12 is insufficient, thus ensuring the smooth progress of the surgery and effectively reducing surgical risks.

[0040] In some embodiments, the main air path 1 is provided with a first disinfection element 11 that is communicatively connected to the controller 4 at the first filter element 12, for disinfecting contaminants in the first filter element 12.

[0041] The first disinfection element 11 can be disposed beside the first filter element 12. The first disinfection element 11 can disinfect the first filter element 12 to ensure the filtration effect and filtration efficiency of the first filter element 12. Specifically, the first disinfection element 11 can be an ultraviolet disinfection device. This application does not make specific limitations on the first disinfection element 11, and any device that can disinfect the first filter element 12 is acceptable.

[0042] When the filtration efficiency of the first filter element 12 in the main gas path 1 decreases due to use, i.e., when the concentration of the first pollutant detected by the first pollutant detector 13 is high, the controller 4 can control the diversion valve 3 to switch to the backup gas path 2, thereby ensuring the continuity of gas supply from the gas source 7. At this time, the first disinfection element 11 can disinfect the first filter element 12 to improve its performance and further extend its service life.

[0043] When the concentration of the first pollutant decreases, the controller 4 can control the diversion valve 3 to switch back to the main gas line 1, avoiding the frequent use of the backup gas line 2 and reducing the wear of the second filter element 21 on the backup gas line 2.

[0044] In the above embodiment, after the first filter element 12 is disinfected by the first disinfection element 11, the controller 4 can control the diversion valve 3 to close the backup air circuit 2 and open the main air circuit 1. In this way, while ensuring the continuity of air supply from the air source 7, the performance and service life of the first filter element 12 can be further improved, and the frequency of use of the backup air circuit 2 can be reduced, effectively reducing the loss of the pneumoperitoneum machine's air supply system.

[0045] In some embodiments, such as Figure 1 and Figure 2 As shown, the backup gas path 2 is also equipped with a second pollutant detection element 22 that is communicatively connected to the controller 4. The second pollutant detection element 22 is located downstream of the second filter element 21 along the gas transmission direction. The second pollutant detection element 22 is used to detect the second pollutant concentration of the gas after it has been filtered by the second filter element 21.

[0046] The second pollutant detection element 22 can detect the second pollutant concentration of the gas after it has been filtered by the second filter element 21 in real time, thereby ensuring that the gas delivered to the gas supply object 8 through the backup gas path 2 can meet the usage requirements.

[0047] When the concentration of the second pollutant detected by the second pollutant detector 22 fails to meet the requirements, it can be promptly fed back to the controller 4. The controller 4 then controls the diversion valve 3 to close the backup gas line 2 and open the main gas line 1. It can also send a reminder message to the operator to ensure the safety of the backup gas line 2.

[0048] In the above embodiment, by setting the second contaminant detection element 22 downstream of the second filter element 21 along the gas delivery direction, the reduction in the filtration performance of the second filter element 21 can be detected and discovered in a timely manner, which effectively improves the safety of the backup gas path 2 and thus improves the reliability of the pneumoperitoneum gas supply system.

[0049] In some embodiments, such as Figure 1 and Figure 2 As shown, a check valve 23 is also installed on the backup gas line 2. The check valve 23 is located downstream of the second pollutant detection element 22 along the gas transmission direction.

[0050] The inlet of check valve 23 can be connected to the second contaminant detector 22, and the outlet of check valve 23 can be connected to the gas supply object 8. Check valve 23 has the characteristic of allowing gas to flow in one direction, thus preventing reverse flow of gas.

[0051] Of course, in some other embodiments, a check valve 23 may also be provided downstream of the first pollutant detection element 13 in the main gas path 1 along the gas delivery direction, and this application does not make specific limitations on this.

[0052] In the above embodiment, the check valve 23 can prevent gas from flowing back during the transportation process, ensuring that the gas can only flow from the backup gas path 2 to the gas supply object 8, and will not flow in the opposite direction, effectively avoiding contamination or damage to the backup gas path 2 due to gas backflow.

[0053] In some embodiments, such as Figure 1 and Figure 2 As shown, the backup air path 2 is equipped with a second disinfection component 24 that is communicatively connected to the controller 4 at the second filter component 21, which is used to disinfect the contaminants in the second filter component 21.

[0054] The second sterilization component 24 can be disposed beside the second filter component 21. The second sterilization component 24 can sterilize the second filter component 21 to ensure the filtration effect and filtration efficiency of the second filter component 21. Specifically, the second sterilization component 24 can be an ultraviolet sterilizer. This application does not make specific limitations on the second sterilization component 24, and any device that can sterilize the second filter component 21 is acceptable.

[0055] After the second disinfection component 24 disinfects the second filter component 21, when the second pollutant concentration detected by the second pollutant detection component 22 meets the requirements, the controller 4 can control the second disinfection component 24 to shut down, so as to reduce the energy consumption of the second disinfection component 24.

[0056] In the above embodiment, when the backup gas path 2 is closed, the second sterilization component 24 sterilizes the second filter component 21, thereby ensuring the filtration performance of the second filter component 21. As a result, when the backup gas path 2 is used again, the gas filtered by the second filter component 21 can meet the usage requirements, effectively improving the practicality and ease of use of the pneumoperitoneum gas supply system.

[0057] In some embodiments, such as Figure 1 As shown, the air inlet of the diversion valve 3 is connected to the air source 7 through the air supply passage 5. The air supply passage 5 is provided with pressure reducing component 51 and pressure relieving component 52 in sequence along the air supply direction.

[0058] The gas source 7 can be a compressed gas cylinder or a central gas source. The gas supplied by the gas source 7 has a high pressure, so it needs to be reduced in pressure when it flows into the gas supply object 8 to ensure that the gas supply object 8 is not damaged by high-pressure gas. The pressure reducing element 51 can effectively reduce the gas pressure, and the pressure relief element 52 located downstream of the pressure reducing element 51 can be manually opened to quickly reduce the gas pressure when the pressure reducing element 51 fails or when the gas pressure is still high after being reduced by the pressure reducing element 51, thereby ensuring the safety and reliability of the pneumoperitoneum machine gas supply system.

[0059] A first pressure relief air passage 53 can also be provided downstream of the pressure reducing component 51. When the pressure reducing component 51 fails or the gas pressure remains high after pressure reduction by the pressure reducing component 51, the first pressure relief air passage 53 can be automatically opened to quickly reduce the gas pressure, thereby improving the automation level of the gas supply passage 5 control and further enhancing the safety and reliability of the pneumoperitoneum machine's gas supply system. Figure 2 As shown, the outlet of the first pressure relief gas path 53 can be equipped with a silencer 54 to minimize the noise generated when high-pressure gas is discharged from the gas supply path 5. It can be understood that the arrows in the diagram represent the direction of gas flow.

[0060] A first pressure detection element 55, which is connected to the controller 4, can be installed upstream of the pressure reducing element 51, so that the pressure of the gas in the gas supply line 5 can be detected in real time and fed back to the controller 4.

[0061] A gas filter 56 can be installed upstream of the first pressure detection element 55 to perform preliminary filtration of the gas discharged from the gas source 7, thereby improving the service life of the first filter element 12 and the second filter element 21.

[0062] In the above embodiments, the pressure reducing component 51 can reduce the pressure of the gas flowing from the gas source 7 to the gas supply object 8, while the pressure relief component 52 can quickly reduce the gas pressure when the pressure reducing component 51 fails or when the gas pressure is still too high after being reduced by the pressure reducing component 51, thereby ensuring the safety of the gas supply object 8 and further improving the safety and reliability of the pneumoperitoneum machine gas supply system.

[0063] In some embodiments, such as Figure 1 As shown, the pneumoperitoneum machine's gas supply system also includes a gas delivery path 6, which is connected downstream of both the main gas path 1 and the backup gas path 2. The gas delivery path 6 is used to supply gas from the main gas path 1 or the backup gas path 2 to the gas supply object 8. A clamp valve 63, which is connected to the controller 4, is installed on the gas delivery path 6 to open or close the gas delivery path 6.

[0064] The operator can control the opening and closing of the pinch valve 63 in a timely manner according to the actual needs of use, thereby flexibly controlling the opening or closing of the gas supply line 6. Specifically, the pinch valve 63 can be clamped onto the gas supply line 6, and the on / off state of the gas supply line 6 can be controlled by clamping or loosening the gas supply line 6.

[0065] In the above embodiment, by installing a pinch valve 63 on the gas supply path 6, when neither the first filter 12 on the main gas path 1 nor the second filter 21 on the backup gas path 2 can meet the usage requirements, the pinch valve 63 can be controlled to close the gas supply path 6. This prevents the unsatisfactory gas from flowing to the gas supply object 8, thereby avoiding any impact or damage to the safety of the gas supply object 8, effectively ensuring the practicality, flexibility, and safety of the pneumoperitoneum machine gas supply system. Furthermore, due to the simple structure and reliable connection of the pinch valve 63, the manufacturing and operating costs of the pneumoperitoneum machine gas supply system can be effectively reduced.

[0066] In some embodiments, such as Figure 1 As shown, the gas transmission line 6 is also equipped with a proportional valve 61 and a flow sensor 62 that are connected to the controller 4. The proportional valve 61 and the flow sensor 62 are sequentially arranged upstream of the pinch valve 63 along the gas transmission direction. The controller 4 can receive the flow information of the gas transmission line 6 detected by the flow sensor 62 and send a control command to the proportional valve 61 to control the flow of the gas transmission line 6.

[0067] like Figure 1 As shown, the gas supply path 6 is equipped with a proportional valve 61 and a flow sensor 62, which are respectively connected to the controller 4. The flow sensor 62 can be located on the gas supply path 6 and close to the gas supply object 8, so as to accurately detect the flow rate of the gas flowing into the gas supply object 8. The controller 4 can control the opening angle of the proportional valve 61 based on the flow information detected by the flow sensor 62, thereby controlling the flow rate of the gas flowing into the gas supply object 8.

[0068] In the above embodiments, by using the proportional valve 61 and flow sensor 62 installed on the gas supply line 6, the operator can precisely control the flow rate of the gas to the gas supply object 8 according to the actual needs of use, which effectively improves the flexibility and adaptability of the pneumoperitoneum machine gas supply system. When the pneumoperitoneum machine gas supply system is applied to laparoscopic surgery, it can effectively improve the safety and efficiency of the surgery.

[0069] like Figure 1 As shown, a switching valve 66 can also be installed on the gas supply line 6, and the opening or closing of the switching valve 66 can control the on / off state of the gas supply line 6. A second pressure detection element 68, which is communicatively connected to the controller 4, can be installed between the proportional valve 61 and the switching valve 66 to detect the pressure value of the gas supplied through the proportional valve 61.

[0070] Downstream of the switching valve 66, a third pressure detection element 69 and a second pressure relief air path 67 can be sequentially provided. The third pressure detection element 69 can be communicatively connected to the controller 4 to detect the pressure value of the gas flowing through the switching valve 66. The second pressure relief air path 67 can automatically and quickly discharge the gas in the gas supply path 6 when the pressure value of the gas detected by the third pressure detection element 69 does not meet the requirements, thus avoiding damage to the gas supply object 8 caused by high-pressure gas.

[0071] In some embodiments, such as Figure 1 As shown, an anti-backflow device 64 is also provided on the gas transmission line 6. The anti-backflow device 64 is located downstream of the clamp valve 63 along the gas transmission direction. The anti-backflow device 64 is used to prevent gas from the gas supply object 8 from flowing into the gas transmission line 6.

[0072] In the above embodiments, when the pneumoperitoneum gas supply system is applied to laparoscopic surgery, waste gas is easily generated at the gas supply target 8 during the operation. The anti-backflow device 64 can prevent the generated waste gas from flowing back into the gas supply path 6, thereby contaminating the various components in the pneumoperitoneum gas supply system and the gas in the gas source 7, effectively improving the safety of the surgery.

[0073] In some embodiments, a fluid sensor 65, which is communicatively connected to the controller 4, is also provided on the gas supply line 6. The fluid sensor 65 is located between the clamp valve 63 and the anti-backflow device 64. The fluid sensor 65 is used to detect the gas parameters flowing through the gas supply line and / or to detect whether the gas at the gas supply object 8 flows into the gas supply line 6.

[0074] In the above embodiment, the fluid sensor 65 can monitor the specific parameters of the gas flowing through the gas supply path 6 in real time, and can also detect whether the gas at the gas supply target 8 flows into the gas supply path 6. Through real-time detection, the controller 4 can quickly take measures when gas backflow is detected, such as closing the clamp valve 63 or triggering an alarm, thereby effectively preventing gas backflow, avoiding gas contamination and cross-infection, and further improving the safety and reliability of the pneumoperitoneum machine's gas supply system.

[0075] The pneumoperitoneum machine air supply system of this utility model can adopt, for example... Figure 3 The control method of the pneumoperitoneum machine air supply system shown includes steps S110 to S130.

[0076] Step S110: Obtain the first pollution concentration detected by the first pollutant detection element 13.

[0077] Step S120: Determine whether the first pollution concentration is higher than the first concentration threshold.

[0078] The first concentration threshold can be determined based on the actual use of the gas in the gas source 7. This application specifies the specific value of the first concentration threshold.

[0079] Step S130: If yes, then control the diversion valve 3 to close the main gas line 1 and open the backup gas line 2.

[0080] The control method of the above-described pneumoperitoneum gas supply system allows gas from the gas source 7 to flow to the target gas 8 via the main gas path 1. The main gas path 1 can be equipped with a first filter 12 to filter the flowing gas. A first contaminant detector 13 can detect the first contaminant concentration of the filtered gas. When the first contaminant concentration exceeds a first concentration threshold, it indicates that the performance of the first filter 12 has deteriorated, and the gas filtered by the first filter 12 cannot meet the usage requirements. At this time, the controller 4 can control the diversion valve 3 to close the main gas path 1 and open the backup gas path 2, allowing gas to flow to the backup gas path 2, and then from the backup gas path 2 to the target gas 8. This not only extends the service life of the first filter 12 but also ensures an uninterrupted supply of filtered gas. When the pneumoperitoneum gas supply system is used in laparoscopic surgery, it can switch to the backup gas path 2 when the filtration effect of the first filter 12 fails to meet the surgical requirements, thereby ensuring the smooth progress of the surgery and effectively reducing the surgical risk.

[0081] In some embodiments, when the main air passage 1 is provided with a first disinfection component 11 that is communicatively connected to the controller 4 at the first filter 12, the control method further includes: when the diversion valve 3 controls the main air passage 1 to be closed and the backup air passage 2 to be opened, the first disinfection component 11 is opened to disinfect the first filter 12.

[0082] In the above embodiment, when the filtration effect of the first filter element 12 in the main air circuit 1 decreases due to use, the controller 4 can control the diversion valve 3 to switch to the backup air circuit 2, thereby ensuring the continuity of air supply from the air source 7. At this time, the first disinfection element 11 can be activated to disinfect the first filter element 12, thereby improving the performance and service life of the first filter element 12 and effectively reducing the loss of the pneumoperitoneum machine's air supply system.

[0083] In some embodiments, such as Figure 4 As shown, the control method further includes steps S210 to S230.

[0084] Step S210: After controlling the diversion valve 3 to close the main gas line 1 and open the backup gas line 2, obtain the first pollution concentration detected by the first pollutant detection element 13.

[0085] Step S220: Determine whether the first pollution concentration is lower than the second concentration threshold, wherein the second concentration threshold is less than or equal to the first concentration threshold.

[0086] The second concentration threshold can be equal to the first concentration threshold. In this way, when the first filter element 12 meets the filtration requirements, the controller 4 can promptly and quickly control the diversion valve 3 to close the backup gas line 2 and reopen the main gas line 1, thereby minimizing the wear of the second filter element 21.

[0087] The second concentration threshold can be lower than the first concentration threshold, which can avoid frequent switching between the main gas path 1 and the backup gas path 2, effectively ensuring the stability and reliability of the pneumoperitoneum machine's gas supply system.

[0088] Step S230: If so, control the diversion valve 3 to close the backup gas line 2 and open the main gas line 1.

[0089] In the above embodiment, when the first filter element 12 is disinfected by the first disinfection element 11 and the first pollutant concentration detected by the first pollutant detection element 13 is less than or equal to the second concentration threshold, the controller 4 can control the diversion valve 3 to close the backup gas path 2 and open the main gas path 1. In this way, while ensuring the continuity of gas supply from the gas source 7, the frequency of use of the backup gas path 2 can be reduced, effectively reducing the loss of the pneumoperitoneum machine's gas supply system.

[0090] In some embodiments, when the backup air path 2 is provided with a second disinfection component 24 that is communicatively connected to the controller 4 at the second filter 21, the control method further includes: when the diversion valve 3 controls the backup air path 2 to close and the main air path 1 to open, the second disinfection component 24 is opened to disinfect the second filter 21.

[0091] In the above embodiment, when the backup air path 2 is closed and the main air path 1 is used to supply air to the air supply object 8, the second disinfection component 24 can be turned on to disinfect the second filter component 21 on the backup air path 2, thereby improving the performance and service life of the second filter component 21 and further reducing the loss of the pneumoperitoneum air supply system.

[0092] In some embodiments, such as Figure 5 As shown, when the backup gas path 2 is also equipped with a second pollutant detection element 22 that is communicatively connected to the controller 4, the control method further includes steps S310 to S330.

[0093] Step S310: Obtain the concentration of the second pollutant detected by the second pollutant detection device 22.

[0094] Step S320: Determine whether the second pollution concentration is lower than the third concentration threshold. The third concentration threshold is less than or equal to the second concentration threshold.

[0095] The third concentration threshold can be determined based on the actual use of the gas in gas source 7. This application specifies the specific value of the third concentration threshold.

[0096] Step S330: If yes, then control the shutdown of the second disinfection component 24.

[0097] In the above embodiment, if the concentration of the second pollutant detected by the second pollutant detector 22 is lower than the third concentration threshold, it can be determined that the performance of the second filter element 21 has been improved after being disinfected by the second disinfection element 24, and the gas filtered by the second filter element 21 can meet the usage requirements. At this time, the second disinfection element 24 can be turned off to reduce the power required to drive the second disinfection element 24. If the concentration of the second pollutant detected by the second pollutant detector 22 is higher than the third concentration threshold, the second disinfection element 24 can be continuously turned on to disinfect the second filter element 21. In this way, after the second filter element 21 is disinfected by the second disinfection element 24, the second disinfection element 24 can be turned off in a timely manner, thereby avoiding the waste of power and effectively improving the flexibility and practicality of the pneumoperitoneum gas supply system.

[0098] In some embodiments, such as Figure 5 As shown, when the backup gas path 2 is also equipped with a second pollutant detection element 22 that is connected to the controller 4, and the pneumoperitoneum air supply system also includes a gas delivery path 6, and a clamp valve 63 connected to the controller 4 is installed on the gas delivery path 6, the control method further includes steps S410 to S430.

[0099] Step S410: Obtain the first pollution concentration detected by the first pollutant detector 13 and the second pollution concentration detected by the second pollutant detector 22.

[0100] Step S420: Determine whether the first pollution concentration and the second pollution concentration are both higher than the first concentration threshold.

[0101] Step S430: If so, control the pinch valve 63 to close the gas supply line 6.

[0102] In the above embodiment, when both the first pollution concentration and the second pollution concentration are higher than the first concentration threshold, it can be determined that the first filter element 12 on the main gas path 1 and the second filter element 21 on the backup gas path 2 cannot meet the usage requirements. At this time, the pinch valve 63 can be controlled to close the gas supply path 6 to prevent the gas that cannot meet the requirements from flowing to the gas supply object 8, thereby affecting or damaging the safety of the gas supply object 8.

[0103] Of course, the control method of the pneumoperitoneum air supply system in the above embodiments does not constitute a limitation on the pneumoperitoneum air supply system of this utility model. The implementation of the pneumoperitoneum air supply system does not depend on the control method of the pneumoperitoneum air supply system. Other control methods of the pneumoperitoneum air supply system not listed can also be used, including conventional control methods in the prior art and their combinations to control all or part of the pneumoperitoneum air supply system, which will not be elaborated here.

[0104] Although exemplary embodiments have been described herein with reference to the accompanying drawings, it should be understood that these exemplary embodiments are merely illustrative and are not intended to limit the scope of the invention. Various changes and modifications can be made therein by those skilled in the art without departing from the scope and spirit of the invention. All such changes and modifications are intended to be included within the scope of the invention as claimed in the appended claims.

[0105] For ease of description, the term "connection" may be used herein to describe the relationship between one or more elements or features shown in the figure and other elements or features. It should be understood that "connection" may include direct connections or indirect connections via other elements or features, and this document is intended to encompass all such cases.

[0106] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, parts, components, and / or combinations thereof.

[0107] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0108] This utility model has been described through the above embodiments. However, it should be understood that the above embodiments are for illustrative purposes only and are not intended to limit the utility model to the described embodiments. Furthermore, those skilled in the art will understand that this utility model is not limited to the above embodiments, and many more variations and modifications can be made based on the teachings of this utility model, all of which fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An air supply system for an insufflator, characterized in that, include: Main gas line, backup gas line, diversion valve and controller, The inlet of the diversion valve is used to connect to the gas source, the first outlet of the diversion valve is connected to the inlet of the main gas circuit, and the second outlet of the diversion valve is connected to the inlet of the backup gas circuit. The outlet of the main gas path is used to connect to the gas supply object. A first filter and a first pollutant detection element are sequentially arranged along the gas transmission direction on the main gas path. The first filter is used to filter the gas flowing through it, and the first pollutant detection element is used to detect the first pollutant concentration of the filtered gas. The outlet of the backup gas path is connected to the outlet of the first pollutant detection element. A second filter element is installed on the backup gas path to filter the flowing gas. The controller is communicatively connected to the diversion valve and the first pollutant detection device.

2. The pneumoperitoneum air supply system according to claim 1, characterized in that, The main air path is equipped with a first disinfection component at the first filter element, which is communicatively connected to the controller and is used to disinfect contaminants in the first filter element.

3. The pneumoperitoneum air supply system according to claim 1, characterized in that, The backup gas line is also equipped with a second pollutant detection device that is communicatively connected to the controller. The second pollutant detection device is located downstream of the second filter in the gas delivery direction. The second pollutant detection device is used to detect the second pollutant concentration of the gas after it has been filtered by the second filter.

4. The pneumoperitoneum air supply system according to claim 3, characterized in that, The backup gas line is also equipped with a check valve, which is located downstream of the second pollutant detector along the gas delivery direction.

5. The pneumoperitoneum air supply system according to claim 2, characterized in that, The backup air path is equipped with a second disinfection component at the second filter element, which is communicatively connected to the controller and is used to disinfect contaminants in the second filter element.

6. The pneumoperitoneum air supply system according to claim 1, characterized in that, The air inlet of the diverter valve is connected to the air source through an air supply path, and pressure reducing components and pressure relieving components are sequentially arranged along the air supply direction on the air supply path.

7. The pneumoperitoneum air supply system according to any one of claims 1 to 6, characterized in that, The pneumoperitoneum machine's gas supply system also includes a gas delivery path, which is connected downstream of both the main gas path and the backup gas path. The gas delivery path is used to supply gas from the main gas path or the backup gas path to the gas-supplying object. A clamp valve communicating with the controller is provided on the gas delivery path to open or close the gas delivery path.

8. The pneumoperitoneum air supply system according to claim 7, characterized in that, The gas transmission line is also equipped with a proportional valve and a flow sensor that are communicatively connected to the controller. The proportional valve and the flow sensor are sequentially located upstream of the pinch valve along the gas transmission direction.

9. The pneumoperitoneum air supply system according to claim 7, characterized in that, An anti-backflow device is also provided in the gas supply line. The anti-backflow device is located downstream of the clamp valve along the gas supply direction. The anti-backflow device is used to prevent gas from the gas supply target from flowing into the gas supply line.

10. The pneumoperitoneum air supply system according to claim 9, characterized in that, A fluid sensor, which is communicatively connected to the controller, is also provided on the gas supply line. The fluid sensor is located between the clamp valve and the anti-backflow device. The fluid sensor is used to detect the gas parameters flowing through the gas supply line and / or to detect whether the gas at the gas supply target flows into the gas supply line.

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