Automatic Identification Method, System, Device and Storage Medium for Pneumoperitoneum Needle in Pneumoperitoneum Machine

Abstract

The present invention discloses an automatic recognition method, system, device and storage medium for an insufflation needle in an insufflator. The method includes obtaining the gas delivery process state of the gas supply system of the insufflator, as well as the dynamic pressure and measured flow rate at the insufflation tube in the insufflator; judging whether the insufflator enters the insufflation needle mode according to the gas delivery process state, dynamic pressure and measured flow rate; when it is judged that the insufflator enters the insufflation needle mode, setting the target desired gas delivery flow rate of the insufflator. By comparing and judging the dynamic pressure and measured flow rate in the gas delivery process state, the present invention can automatically identify whether the insufflation needle is connected to the insufflation tube; when it is identified that the insufflation needle is in a connected state, automatically setting the target desired gas delivery flow rate of the insufflator can prevent excessive flow rate and too high internal pressure in the gas path of the insufflator when the insufflation needle is connected to the insufflation tube, thereby effectively avoiding the occurrence of safety accidents, without manual intervention and being convenient to use.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly to an automatic recognition method, system, device and storage medium for pneumoperitoneum needles in a pneumoperitoneum machine. Background Art

[0002] The pneumoperitoneum needle is an important part of the pneumoperitoneum machine in laparoscopic surgery. Generally, the pneumoperitoneum needle is used when initially establishing pneumoperitoneum, so the pneumoperitoneum needle plays an irreplaceable role.

[0003] The diameter of the needle core of the pneumoperitoneum needle is generally about 2 mm, and the length is between 80 - 150 mm. Since the maximum flow rate of the CO2 gas flowing through the needle core of the pneumoperitoneum needle is affected by the diameter of the needle core, when using the pneumoperitoneum needle to establish pneumoperitoneum, if the pneumoperitoneum needle is not recognized and the expected gas supply flow rate of the pneumoperitoneum machine is not restricted after recognizing the pneumoperitoneum needle, it is easy to have a situation where the flow rate through the needle core of the pneumoperitoneum needle is too large. When the flow rate through the needle core of the pneumoperitoneum needle is too large, on the one hand, it will cause the CO2 gas not to pass smoothly through the pneumoperitoneum needle, and on the other hand, it will cause the internal pressure of the pneumoperitoneum needle to be too large, resulting in risks such as the pneumoperitoneum needle popping out and air leakage, thus affecting the safety of the device. Therefore, when using the pneumoperitoneum needle to establish pneumoperitoneum, it is particularly important to be able to automatically recognize the connection state of the pneumoperitoneum needle. After recognizing the connection state of the pneumoperitoneum needle, it is also necessary to limit the expected gas supply flow rate of the pneumoperitoneum machine.

[0004] However, in the current pneumoperitoneum machine technology, usually when manually connecting the pneumoperitoneum needle, the flow rate is changed by manual adjustment, which is inconvenient to use. Summary of the Invention

[0005] In view of this, the present invention provides an automatic recognition method, system, device and storage medium for pneumoperitoneum needles in a pneumoperitoneum machine to solve the problem of inconvenient use caused by manual intervention of the flow rate when manually connecting the pneumoperitoneum needle in the existing pneumoperitoneum machine.

[0006] The present invention provides an automatic recognition method for pneumoperitoneum needles in a pneumoperitoneum machine, including:

[0007] Obtaining the gas supply process state of the gas supply system of the pneumoperitoneum machine, as well as the dynamic pressure change and the measured flow rate at the pneumoperitoneum tube in the pneumoperitoneum machine;

[0008] Judging whether the pneumoperitoneum machine enters the pneumoperitoneum needle mode according to the gas supply process state, the dynamic pressure and the measured flow rate;

[0009] When it is judged that the pneumoperitoneum machine enters the pneumoperitoneum needle mode, setting the target expected gas supply flow rate of the pneumoperitoneum machine.

[0010] Optionally, obtaining the dynamic pressure and the measured flow rate includes:

[0011] Using a pressure sensor, obtain the dynamic pressure at the pneumoperitoneum tube in the pneumoperitoneum machine;

[0012] Using a flow sensor, obtain the measured flow rate at the pneumoperitoneum tube in the pneumoperitoneum machine.

[0013] Optionally, the gas delivery process state includes a start gas delivery state and a gas delivery during state;

[0014] According to the gas delivery process state, the dynamic pressure, and the measured flow rate, determine whether the pneumoperitoneum machine enters the pneumoperitoneum needle mode, including:

[0015] When the gas supply system of the pneumoperitoneum machine is in the start gas delivery state, determine whether the pneumoperitoneum machine enters the pneumoperitoneum needle mode according to the dynamic pressure and the measured flow rate;

[0016] When the gas supply system of the pneumoperitoneum machine is in the gas delivery during state, determine whether the pneumoperitoneum machine has a blockage according to the dynamic pressure; when it is determined that the pneumoperitoneum machine has a blockage, determine whether the pneumoperitoneum machine enters the pneumoperitoneum needle mode according to the dynamic pressure and the measured flow rate.

[0017] Optionally, when the gas supply system of the pneumoperitoneum machine is in the gas delivery during state, determining whether the pneumoperitoneum machine has a blockage according to the dynamic pressure includes:

[0018] Preset a second pressure threshold;

[0019] Determine whether the dynamic pressure is greater than the second pressure threshold;

[0020] If so, determine that the pneumoperitoneum machine has a blockage and issue an alarm signal;

[0021] Otherwise, determine that the pneumoperitoneum machine has no blockage and determine that the pneumoperitoneum machine does not enter the pneumoperitoneum needle mode.

[0022] Optionally, determining whether the pneumoperitoneum machine enters the pneumoperitoneum needle mode according to the dynamic pressure and the measured flow rate includes:

[0023] Preset a pneumoperitoneum needle identification flow rate and a first pressure threshold;

[0024] Determine whether the dynamic pressure of the pneumoperitoneum machine at the pneumoperitoneum needle identification flow rate is greater than the first pressure threshold;

[0025] If so, determine that the pneumoperitoneum machine enters the pneumoperitoneum needle mode; otherwise, determine that the pneumoperitoneum machine does not enter the pneumoperitoneum needle mode.

[0026] Optionally, when it is determined that the pneumoperitoneum machine enters the pneumoperitoneum needle mode, setting the target desired gas delivery flow rate of the pneumoperitoneum machine includes:

[0027] Preset the initial expected gas delivery flow rate and the safe gas delivery flow rate of the pneumoperitoneum machine;

[0028] When the initial expected gas delivery flow rate is greater than or equal to the safe gas delivery flow rate range, set the safe gas delivery flow rate as the target expected gas delivery flow rate;

[0029] When the initial expected gas delivery flow rate is less than the safe gas delivery flow rate, set the initial expected gas delivery flow rate as the target expected gas delivery flow rate.

[0030] Optionally, after setting the target expected gas delivery flow rate of the pneumoperitoneum machine when it is determined that the pneumoperitoneum machine enters the pneumoperitoneum needle mode, it further includes:

[0031] After the pneumoperitoneum machine enters the pneumoperitoneum needle mode, determine whether the dynamic pressure is less than or equal to the first pressure threshold;

[0032] If so, determine that the pneumoperitoneum machine exits the pneumoperitoneum needle mode, and adjust the target expected gas delivery flow rate of the pneumoperitoneum machine back to the initial expected gas delivery flow rate;

[0033] Otherwise, determine that the pneumoperitoneum machine remains in the pneumoperitoneum needle mode, and maintain the current expected gas delivery flow rate of the pneumoperitoneum machine in the pneumoperitoneum needle mode.

[0034] In addition, the present invention also provides an automatic recognition system for a pneumoperitoneum needle in a pneumoperitoneum machine, which is applied to the automatic recognition method for a pneumoperitoneum needle in the foregoing pneumoperitoneum machine, and includes:

[0035] A data acquisition module, configured to acquire the gas delivery process status of the gas supply system of the pneumoperitoneum machine, as well as the dynamic pressure and the measured flow rate at the pneumoperitoneum tube in the pneumoperitoneum machine;

[0036] A pneumoperitoneum needle recognition module, configured to determine whether the pneumoperitoneum machine enters the pneumoperitoneum needle mode according to the gas delivery process status, the dynamic pressure, and the measured flow rate;

[0037] A flow rate setting module, configured to set the target expected gas delivery flow rate of the pneumoperitoneum machine when the pneumoperitoneum needle recognition module determines that the pneumoperitoneum machine enters the pneumoperitoneum needle mode.

[0038] In addition, the present invention also provides an automatic recognition device for a pneumoperitoneum needle in a pneumoperitoneum machine, including:

[0039] The device body;

[0040] A pressure sensor, provided on the device body;

[0041] A flow rate sensor, provided on the device body; and

[0042] The automatic identification system of the pneumoperitoneum needle in the pneumoperitoneum machine described above is provided on the device body and is communicatively connected to both the pressure sensor and the flow sensor.

[0043] In addition, the present invention also provides a computer storage medium, which includes: at least one instruction that, when executed, implements the foregoing method steps.

[0044] Advantages of the present invention: Obtain the gas supply process state of the gas supply system of the pneumoperitoneum machine, the dynamic pressure at the pneumoperitoneum tube, and the measured flow rate. By comparing and judging the dynamic pressure and the measured flow rate in the gas supply process state, it is possible to automatically identify whether the pneumoperitoneum machine is in the pneumoperitoneum needle mode. When the pneumoperitoneum machine is in the pneumoperitoneum needle mode, it means that the pneumoperitoneum needle is connected to the pneumoperitoneum tube. When the pneumoperitoneum machine is not in the pneumoperitoneum needle mode or exits the pneumoperitoneum needle mode, it means that the pneumoperitoneum needle is not connected to the pneumoperitoneum tube, that is, it automatically identifies whether the pneumoperitoneum needle is connected to the pneumoperitoneum tube; in addition, when it is identified that the pneumoperitoneum needle is connected to the pneumoperitoneum tube (that is, when the pneumoperitoneum machine is in the pneumoperitoneum needle mode), the target expected gas supply flow rate of the pneumoperitoneum machine is automatically set, which can prevent excessive flow rate and too high internal pressure in the gas path of the pneumoperitoneum machine when the pneumoperitoneum needle is connected to the pneumoperitoneum tube, thereby effectively avoiding the occurrence of safety accidents, without manual intervention, and is convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] The features and advantages of the present invention will be more clearly understood by referring to the accompanying drawings. The drawings are schematic and should not be construed as any limitation to the present invention. In the drawings:

[0046] Figure 1 Shows a flowchart of an automatic identification method of a pneumoperitoneum needle in a pneumoperitoneum machine in Embodiment 1 of the present invention;

[0047] Figure 2 Shows the hardware structure diagram of a pneumoperitoneum machine in Embodiment 1 of the present invention;

[0048] Figure 3 Shows the structure diagram of an automatic identification system of a pneumoperitoneum needle in a pneumoperitoneum machine in Embodiment 2 of the present invention;

[0049] Figure 4 Shows the structure diagram of an automatic identification device of a pneumoperitoneum needle in a pneumoperitoneum machine in Embodiment 3 of the present invention.

[0050] Description of the reference numerals:

[0051] 1, main control board, 2, gas path;

[0052] 11, main chip of the main control board, 12, pressure sensor, 13, flow sensor, 21, pneumoperitoneum tube joint, 22, pneumoperitoneum tube, 23, Luer connector, 24, pneumoperitoneum needle. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0053] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0054] Embodiment 1

[0055] As Figure 1 shown, an automatic recognition method for a pneumoperitoneum needle in a pneumoperitoneum machine includes:

[0056] S1: Obtain the gas supply process status of the gas supply system of the pneumoperitoneum machine, the dynamic pressure and the measured flow rate at the pneumoperitoneum tube of the pneumoperitoneum machine;

[0057] S2: Determine whether the pneumoperitoneum machine enters the pneumoperitoneum needle mode according to the gas supply process status, the dynamic pressure, and the measured flow rate;

[0058] S3: When it is determined that the pneumoperitoneum machine enters the pneumoperitoneum needle mode, set the target expected gas supply flow rate of the pneumoperitoneum machine.

[0059] By obtaining the gas supply process status of the gas supply system of the pneumoperitoneum machine, the dynamic pressure and the measured flow rate at the pneumoperitoneum tube, and through the comparison and judgment of the dynamic pressure and the measured flow rate in the gas supply process status, it can be automatically recognized whether the pneumoperitoneum machine is in the pneumoperitoneum needle mode. Among them, the pneumoperitoneum machine being in the pneumoperitoneum needle mode means that the pneumoperitoneum needle is in a connected state with the pneumoperitoneum tube, and the pneumoperitoneum machine not being in the pneumoperitoneum needle mode or exiting the pneumoperitoneum needle mode means that the pneumoperitoneum needle is not in a connected state with the pneumoperitoneum tube, that is, it can be automatically recognized whether the pneumoperitoneum needle is in a connected state with the pneumoperitoneum tube; in addition, when it is recognized that the pneumoperitoneum needle is in a connected state with the pneumoperitoneum tube (that is, when the pneumoperitoneum machine is in the pneumoperitoneum needle mode), the target expected gas supply flow rate of the pneumoperitoneum machine is automatically set, which can prevent excessive flow rate and too high internal pressure in the gas path of the pneumoperitoneum machine when the pneumoperitoneum needle is connected to the pneumoperitoneum tube, and thus effectively avoid the occurrence of safety accidents without manual intervention and is convenient to use.

[0060] It should be noted that the pneumoperitoneum machine will preset an initial expected gas supply flow rate. When it is determined in S2 that the pneumoperitoneum machine does not enter the pneumoperitoneum needle mode, the target expected gas supply process is not set, that is, the initial expected gas supply flow rate remains unchanged.

[0061] It should be noted that in S1, the internal system of the insufflator can receive a start gas supply signal flag and a gas supply process flag. For example, when the "start gas supply signal flag" is 1, it represents that the gas supply system of the insufflator starts to supply gas; when the "start gas supply signal flag" is 0, it represents that the gas supply system of the insufflator does not start to supply gas. Another example is that when the "gas supply process flag" is 1, it represents that the gas supply system of the insufflator has entered the gas supply period (i.e., gas supply has passed for a period of time); when the "gas supply process flag" is 0, it represents that the gas supply system of the insufflator has just started to supply gas. By receiving the start gas supply signal flag and the gas supply process flag, the gas supply process status of the gas supply system of the insufflator can be obtained.

[0062] Preferably, in S1, obtaining the dynamic pressure and the measured flow rate includes:

[0063] S11: Using a pressure sensor, obtain the dynamic pressure at the gas insufflation tube in the insufflator;

[0064] S12: Using a flow sensor, obtain the measured flow rate at the gas insufflation tube in the insufflator.

[0065] Generally, a pressure sensor and a flow sensor are provided in the insufflator. The dynamic pressure is obtained through the pressure sensor, and the measured flow rate is obtained through the flow sensor. By using the original hardware structure of the insufflator, it is possible to obtain data for facilitating subsequent judgment of the gas insufflation needle mode without changing the hardware or adding hardware separately.

[0066] Specifically, the hardware structure of the insufflator in this embodiment is as Figure 2As shown in the figure, it consists of a main control board 1 and a gas circuit 2. The main control board 1 is installed inside the insufflator body (not shown in the figure), and the gas circuit 2 is installed on the insufflator body. The main chip 11 of the main control board uses an STM32 single-chip microcomputer. In addition, it also includes a pressure sensor 12 and a flow sensor 13. The gas circuit 2 includes an insufflator host gas circuit (not shown in the figure) and a gas insufflation tube connector 21, a gas insufflation tube 22, a Luer connector 23, and a gas insufflation needle 24 connected to the insufflator host gas circuit. The pressure sensor 12 is located at a gas circuit position close to the gas insufflation tube connector 21 and is used to detect the real-time pressure at the gas insufflation tube 22 (equal to the size of the patient's intra-abdominal pressure). The flow sensor 13 is also located at a gas circuit position close to the gas insufflation tube connector 21 and is used to detect the measured flow at the gas insufflation tube 22. Among them, the real-time pressure includes static pressure and dynamic pressure. When the gas does not flow in the pipeline, the real-time pressure detected by the pressure sensor is the static pressure, and this static pressure is equal to the intra-abdominal static pressure. When the gas is flowing, the real-time pressure detected by the pressure sensor is the dynamic pressure, and this dynamic pressure is related to the size of the gas flow and the external gas circuit. The greater the flow, the greater the dynamic pressure. The smaller the inner diameter of the pipeline, the greater the dynamic pressure. The diameter of the core of the gas insufflation needle is much smaller than the inner diameter of the Luer connector of the gas insufflation tube. Therefore, in the case of the same flow, when the gas insufflation needle is inserted and connected to the gas insufflation tube, the dynamic pressure detected by the pressure sensor will increase significantly. When the gas insufflation needle is pulled out and disconnected from the gas insufflation tube, the dynamic pressure detected by the pressure sensor will decrease. According to this characteristic of the dynamic pressure, it is judged whether the gas insufflation needle is in a connected state with the gas insufflation tube.

[0067] Preferably, the gas supply process state includes a starting gas supply state and a gas supply period state;

[0068] S2 includes:

[0069] S21: When the gas supply system of the insufflator is in the starting gas supply state, judge whether the insufflator enters the gas insufflation needle mode according to the dynamic pressure and the measured flow;

[0070] S22: When the gas supply system of the insufflator is in the gas supply period state, judge whether the insufflator has a blockage according to the dynamic pressure; when it is judged that the insufflator has a blockage, judge whether the insufflator enters the gas insufflation needle mode according to the dynamic pressure and the measured flow.

[0071] Since at the beginning of starting the gas supply, the CO2 gas flow in the gas insufflation tube is small. When the gas insufflation needle is in a connected state with the gas insufflation tube, the dynamic pressure detected by the pressure sensor is small, which is different from the situation where the dynamic pressure is caused when the gas insufflation needle is suddenly connected to the gas insufflation tube during the gas supply process. Therefore, judging whether the insufflator enters the gas insufflation needle mode according to the situation can more effectively automatically identify the connection state between the gas insufflation needle and the gas insufflation tube, and the accuracy rate is higher.

[0072] Preferably, in S21 and S22, the step of determining whether the insufflator enters the insufflation needle mode according to the dynamic pressure and the measured flow rate includes:

[0073] Presetting an insufflation needle identification flow rate and a first pressure threshold;

[0074] Determining whether the dynamic pressure of the insufflator at the insufflation needle identification flow rate is greater than the first pressure threshold;

[0075] If so, it is determined that the insufflator enters the insufflation needle mode; otherwise, it is determined that the insufflator does not enter the insufflation needle mode.

[0076] The preset insufflation needle identification flow rate is the flow rate standard for determining whether the insufflation needle is connected to the insufflation tube in the air supply start state. Under this flow rate standard, by determining whether the dynamic pressure exceeds the preset first pressure threshold, it is possible to effectively determine the connection state between the insufflation needle with a relatively small dynamic pressure and the insufflation tube when the air supply system of the insufflator starts to supply air. When the dynamic pressure exceeds the first pressure threshold in this case, it indicates that the connection between the insufflation needle and the insufflation tube causes a change in the dynamic pressure, and it can be determined that the insufflation needle is connected to the insufflation tube, that is, the insufflator enters the insufflation needle mode. Conversely, if the insufflation needle is not connected to the insufflation tube, that is, the insufflator does not enter the insufflation needle mode.

[0077] Specifically, in this embodiment, both the insufflation needle identification flow rate and the first pressure threshold can be set and adjusted according to actual conditions. For example, in this embodiment, the insufflation needle identification flow rate is set to 2.5 L / min.

[0078] Preferably, in S22, when the air supply system of the insufflator is in the air supply period state, the step of determining whether the insufflator has a blockage according to the dynamic pressure includes:

[0079] Presetting a second pressure threshold;

[0080] Determining whether the dynamic pressure is greater than the second pressure threshold;

[0081] If so, it is determined that the insufflator has a blockage and an alarm signal is issued;

[0082] Otherwise, it is determined that the insufflator does not have a blockage and it is determined that the insufflator does not enter the insufflation needle mode.

[0083] When the air insufflator gas supply system is in the state of supplying gas, that is, when the air insufflator has started supplying gas and has been supplying gas for a period of time, at this time, the pneumoperitoneum needle and the pneumoperitoneum tube are switched from the non-connected state to the connected state in a very short time, which will cause a large fluctuation in dynamic pressure and can cause the blockage of the air insufflator. Therefore, by comparing the dynamic pressure with a preset second pressure threshold first, on the one hand, the connection state of the pneumoperitoneum needle and the pneumoperitoneum tube can be judged to realize the automatic identification of the pneumoperitoneum needle; on the other hand, the blockage of the air insufflator can also be judged, and an alarm signal can be used to give an early warning in time to effectively avoid the occurrence of medical accidents.

[0084] Specifically, the second pressure threshold is greater than the first pressure threshold.

[0085] The second pressure threshold and the first pressure threshold are set and adjusted in advance according to the actual situation.

[0086] Preferably, S3 includes:

[0087] Preset the initial expected gas supply flow rate and the safe gas supply flow rate of the air insufflator;

[0088] When the initial expected gas supply flow rate is greater than or equal to the safe gas supply flow rate, set the safe gas supply flow rate as the target expected gas supply flow rate;

[0089] When the initial expected gas supply flow rate is less than the safe gas supply flow rate, set the initial expected gas supply flow rate as the target expected gas supply flow rate.

[0090] When it is judged that the air insufflator enters the pneumoperitoneum needle mode (that is, the pneumoperitoneum needle and the pneumoperitoneum tube are in the connected state), by comparing the preset initial expected gas supply flow rate with the safe gas supply flow rate, and according to the comparison result, setting the minimum value of the initial expected gas supply flow rate and the safe gas supply flow rate as the target expected gas supply flow rate, when the pneumoperitoneum needle and the pneumoperitoneum tube are in the connected state, the target expected gas supply flow rate of the air insufflator can be limited within a smaller range, and then the automatic adjustment of the expected gas supply flow rate when the pneumoperitoneum needle and the pneumoperitoneum tube are in the connected state can be realized, effectively ensuring the safety of the air insufflator.

[0091] Specifically, in this embodiment, the initial expected gas supply flow rate and the safe gas supply flow rate are both set and adjusted in advance according to the actual situation. For example, in this embodiment, the safe gas supply flow rate is set to 3 L / min, and the initial expected gas supply flow rate is set to 10 L / min.

[0092] Preferably, after S3, it further includes:

[0093] After the air insufflator enters the pneumoperitoneum needle mode, judge whether the dynamic pressure is less than or equal to the first pressure threshold;

[0094] If so, it is determined that the insufflator exits the insufflation needle mode, and the target desired gas delivery flow rate of the insufflator is adjusted back to the initial desired gas delivery flow rate;

[0095] Otherwise, it is determined that the insufflator remains in the insufflation needle mode, and the current desired gas delivery flow rate of the insufflator in the insufflation needle mode is maintained.

[0096] In step S2, it can be judged that the insufflation needle is in a connected state with the insufflation tube during the start of gas delivery and during the gas delivery state. Since in the actual gas delivery process, there is also a situation where the insufflation needle is in a connected state with the insufflation tube and then switches to a disconnected state, in this embodiment, after the insufflator enters the insufflation needle mode, by comparing the dynamic pressure with the first pressure threshold again, it can be identified that the insufflation needle is pulled out from the insufflation tube, that is, the insufflator exits the insufflation needle mode; at the same time, when it is identified that the insufflator exits the insufflation needle mode, the target desired gas delivery flow rate of the insufflator is adjusted back to the initial desired gas delivery flow rate, which is more in line with the actual working conditions of the insufflator; among them, when the dynamic pressure is greater than the first pressure threshold, it means that the insufflator is still in the insufflation needle mode, and it is identified that the insufflation needle remains in a connected state, and the target desired gas delivery flow rate at this time remains unchanged. Through the above steps, this embodiment can comprehensively and accurately automatically identify the state of the insufflation needle and automatically adjust the target desired gas delivery flow rate of the insufflator without manual intervention, effectively avoiding the occurrence of medical accidents.

[0097] It should be noted that for the case where the initial desired gas delivery flow rate is set as the target desired gas delivery flow rate in the insufflation needle mode, if it is determined that the insufflator exits the insufflation needle mode, since the target desired gas delivery flow rate is the same as the initial desired gas delivery flow rate at this time, the target desired gas delivery flow rate remains unchanged, which is essentially the same as adjusting the target desired gas delivery flow rate of the insufflator back to the initial desired gas delivery flow rate.

[0098] Specifically, the complete process of automatically identifying the insufflation needle in this embodiment is as follows:

[0099] 1. After the insufflator is started, the system performs self-check. After the self-check passes, normal gas delivery can be carried out; if the self-check fails, the corresponding alarm signal is displayed, such as "Self-check failed".

[0100] 2. After the self-check is successful, gas delivery is started, and the system detects the state of the gas delivery process.

[0101] 3. The system determines whether to enter the insufflation needle mode; once it detects that it has entered the insufflation needle mode, if the initial desired gas delivery flow rate is greater than the safe gas delivery flow rate, the safe gas delivery flow rate is set as the target desired gas delivery flow rate, that is, the target desired gas delivery flow rate is restricted within the safe gas delivery flow rate; if the initial desired gas delivery flow rate is less than the safe gas delivery flow rate, then the initial desired gas delivery flow rate is set as the target desired gas delivery flow rate, that is, the target desired gas delivery flow rate is restricted within the initial desired gas delivery flow rate.

[0102] 4. During the process of being in the insufflation needle mode, the system detects whether the dynamic pressure is within the first pressure threshold. Once it detects that it is within the first pressure threshold, the system automatically exits the insufflation needle mode and simultaneously cancels the restriction on the maximum flow rate, that is, adjusts the current desired gas delivery flow rate back to the initial desired gas delivery flow rate (if in the case where the initial desired gas delivery flow rate is set as the target desired gas delivery flow rate in the insufflation needle mode, the target desired gas delivery flow rate remains unchanged).

[0103] Embodiment 2

[0104] As Figure 3 shown, an automatic identification system for an insufflation needle in an insufflator, which is applied to the automatic identification method for an insufflation needle in the insufflator of Embodiment 1, includes:

[0105] A data acquisition module, which is used to acquire the gas delivery process status of the gas supply system of the insufflator, as well as the dynamic pressure and the measured flow rate at the insufflation tube in the insufflator;

[0106] An insufflation needle identification module, which is used to judge whether the insufflator has entered the insufflation needle mode according to the gas delivery process status, the dynamic pressure and the measured flow rate;

[0107] A flow rate setting module, which is used to set the target desired gas delivery flow rate of the insufflator when the insufflation needle identification module judges that the insufflator has entered the insufflation needle mode.

[0108] The automatic identification system for the insufflation needle in this embodiment can automatically identify whether the insufflator is in the insufflation needle mode by comparing and judging the dynamic pressure and the measured flow rate in the gas delivery process status. When the insufflator is in the insufflation needle mode, it means that the insufflation needle is in a connected state with the insufflation tube. When the insufflator is not in the insufflation needle mode or has exited the insufflation needle mode, it means that the insufflation needle is not connected to the insufflation tube, that is, it can automatically identify the connection state of the insufflation needle and the insufflation tube; in addition, when it is identified that the insufflation needle is in a connected state with the insufflation tube (that is, when the insufflator is in the insufflation needle mode), the target desired gas delivery flow rate of the insufflator is automatically set, which can prevent excessive flow rate and too high internal pressure in the gas path of the insufflator when connecting the insufflation needle, and thus effectively avoid the occurrence of safety accidents without manual intervention and is convenient to use.

[0109] In this embodiment, the functions of the various modules of the automatic identification system are the same as the steps of the automatic identification method in Embodiment 1. Therefore, for the details not described in this embodiment, please refer to Embodiment 1 and Figures 1 to 2 the specific description, which will not be elaborated here.

[0110] Embodiment 3

[0111] As Figure 4 shown, an automatic identification device for a pneumoperitoneum needle in a pneumoperitoneum machine includes:

[0112] A device body;

[0113] A pressure sensor provided on the device body;

[0114] A flow sensor provided on the device body; and

[0115] The automatic identification system for the pneumoperitoneum needle in the pneumoperitoneum machine of Embodiment 2, which is provided on the device body and is communicatively connected to both the pressure sensor and the flow sensor.

[0116] The automatic identification device of this embodiment can automatically identify the connection state of the pneumoperitoneum needle in the pneumoperitoneum machine; when it is identified that the pneumoperitoneum needle is in a connected state with the pneumoperitoneum tube (i.e., when the pneumoperitoneum machine is in the pneumoperitoneum needle mode), the target desired gas supply flow rate of the pneumoperitoneum machine is automatically set, which can prevent excessive flow rate and too high internal pressure in the gas path of the pneumoperitoneum machine when the pneumoperitoneum tube is connected to the pneumoperitoneum needle, thereby effectively avoiding the occurrence of safety accidents, without manual intervention and being convenient to use.

[0117] Similarly, for the details not described in this embodiment, please refer to Embodiment 1, Embodiment 2 and Figures 1 to 3 the specific description, which will not be elaborated here.

[0118] Embodiment 4

[0119] A computer storage medium, which includes: at least one instruction, and when the instruction is executed, the method steps of Embodiment 1 are implemented.

[0120] By executing a computer storage medium containing at least one instruction, the automatic identification of the connection state of the pneumoperitoneum needle is realized; when it is identified that the pneumoperitoneum needle is in a connected state with the pneumoperitoneum tube, the target desired gas supply flow rate of the pneumoperitoneum machine is automatically set, which can prevent excessive flow rate and too high internal pressure in the gas path of the pneumoperitoneum machine when the pneumoperitoneum tube is connected to the pneumoperitoneum needle, thereby effectively avoiding the occurrence of safety accidents, without manual intervention and being convenient to use.

[0121] Similarly, for the details not described in this embodiment, please refer to Embodiment 1, Embodiment 2, Embodiment 3 and Figures 1 to 4 the specific description, which will not be elaborated here.

[0122] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations fall within the scope defined by the appended claims.

Claims

1. An automatic recognition method for pneumoperitoneum needles in a pneumoperitoneum machine, characterized in that, Including: Obtaining the gas delivery process status of the gas insufflator's gas supply system, the dynamic pressure at the gas insufflation tube in the gas insufflator, and the measured flow rate. The gas delivery process status includes the start gas delivery state and the gas delivery during state. Based on the gas delivery process status, the dynamic pressure, and the measured flow rate, determining whether the gas insufflator enters the insufflation needle mode; when in the start gas delivery state, determining whether to enter the insufflation needle mode based on the dynamic pressure and the measured flow rate; when in the gas delivery during state, determining whether the gas insufflator has a blockage based on the dynamic pressure. If there is a blockage, then determining whether to enter the insufflation needle mode based on the dynamic pressure and the measured flow rate; if there is no blockage, then determining that the gas insufflator does not enter the insufflation needle mode. When it is determined that the gas insufflator enters the insufflation needle mode, setting the target desired gas delivery flow rate of the gas insufflator.

2. The automatic recognition method of the pneumoperitoneum needle in the pneumoperitoneum machine according to claim 1, characterized in that, Obtaining the dynamic pressure and the measured flow rate includes: Using a pressure sensor to obtain the dynamic pressure at the gas insufflation tube in the gas insufflator. Using a flow sensor to obtain the measured flow rate at the gas insufflation tube in the gas insufflator.

3. The automatic recognition method of the pneumoperitoneum needle in the pneumoperitoneum machine according to claim 2, characterized in that, The pressure sensor is used to detect the real-time pressure at the gas insufflation tube. Wherein, the real-time pressure includes the static pressure and the dynamic pressure; when the gas does not flow in the pipeline, the real-time pressure detected by the pressure sensor is the static pressure, and the static pressure is equal to the intra-abdominal static pressure; when the gas flows, the real-time pressure detected by the pressure sensor is the dynamic pressure.

4. The automatic recognition method of the pneumoperitoneum needle in the pneumoperitoneum machine according to claim 1, characterized in that, When the gas supply system of the gas insufflator is in the gas delivery during state, determining whether the gas insufflator has a blockage based on the dynamic pressure includes: Presetting a second pressure threshold. Judging whether the dynamic pressure is greater than the second pressure threshold. If so, determining that the gas insufflator has a blockage and sending an alarm signal. Otherwise, determining that the gas insufflator has no blockage and determining that the gas insufflator does not enter the insufflation needle mode.

5. The automatic recognition method of the pneumoperitoneum needle in the pneumoperitoneum machine according to claim 1, characterized in that, Based on the dynamic pressure and the measured flow rate, determining whether the gas insufflator enters the insufflation needle mode includes: Presetting an insufflation needle identification flow rate and a first pressure threshold. Judging whether the dynamic pressure of the gas insufflator at the insufflation needle identification flow rate is greater than the first pressure threshold. If so, determining that the gas insufflator enters the insufflation needle mode; otherwise, determining that the gas insufflator does not enter the insufflation needle mode.

6. The automatic recognition method of the pneumoperitoneum needle in the pneumoperitoneum machine according to claim 5, characterized in that, When it is determined that the gas insufflator enters the insufflation needle mode, setting the target desired gas delivery flow rate of the gas insufflator includes: Presetting the initial desired gas delivery flow rate and the safe gas delivery flow rate of the gas insufflator. When the initial desired gas delivery flow rate is greater than or equal to the safe gas delivery flow rate range, setting the safe gas delivery flow rate as the target desired gas delivery flow rate. When the initial desired gas delivery flow rate is less than the safe gas delivery flow rate, setting the initial desired gas delivery flow rate as the target desired gas delivery flow rate.

7. The automatic recognition method of the pneumoperitoneum needle in the pneumoperitoneum machine according to claim 6, characterized in that, After setting the target desired gas delivery flow rate of the gas insufflator when it is determined that the gas insufflator enters the insufflation needle mode, it further includes: After the insufflator enters the insufflation needle mode, determine whether the dynamic pressure is less than or equal to the first pressure threshold; If so, determine that the insufflator exits the insufflation needle mode, and adjust the target desired gas delivery flow rate of the insufflator back to the initial desired gas delivery flow rate; Otherwise, determine that the insufflator remains in the insufflation needle mode, and maintain the target desired gas delivery flow rate of the insufflator in the insufflation needle mode.

8. An automatic recognition system for pneumoperitoneum needles in a pneumoperitoneum machine, characterized in that, Applied to the automatic identification method of the insufflation needle in the insufflator according to any one of claims 1 to 7, it includes: A data acquisition module for acquiring the gas delivery process state of the gas supply system of the insufflator, the dynamic pressure and the measured flow rate at the insufflation tube in the insufflator; the gas delivery process state includes the start gas delivery state and the gas delivery period state; An insufflation needle identification module for determining whether the insufflator enters the insufflation needle mode according to the gas delivery process state, the dynamic pressure and the measured flow rate; when in the start gas delivery state, determine whether to enter the insufflation needle mode according to the dynamic pressure and the measured flow rate; when in the gas delivery period state, determine whether the insufflator has a blockage according to the dynamic pressure; if there is a blockage, determine whether to enter the insufflation needle mode according to the dynamic pressure and the measured flow rate; if there is no blockage, determine that the insufflator does not enter the insufflation needle mode; A flow rate setting module for setting the target desired gas delivery flow rate of the insufflator when the insufflation needle identification module determines that the insufflator enters the insufflation needle mode.

9. An automatic recognition device for a pneumoperitoneum needle in a pneumoperitoneum machine, characterized in that, It includes: The device body; A pressure sensor provided on the device body; A flow rate sensor provided on the device body; And The automatic identification system of the insufflation needle in the insufflator according to claim 8, provided on the device body and communicatively connected to both the pressure sensor and the flow rate sensor.

10. A computer storage medium, characterized in that, The computer storage medium includes: at least one instruction, which implements the method steps of the automatic identification method of the insufflation needle in the insufflator according to any one of claims 1 to 7 when the instruction is executed.

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