A method, apparatus, system, and medium to address exhalation trigger delay

Abstract

The application discloses a method, device, system and medium for solving exhalation trigger delay, comprising: acquiring a current switch point flow rate; comparing the switch point flow rate with an ideal flow rate to determine whether the switch point is abnormal; if the switch point is abnormal, revising the switch point flow rate according to a feedback adjustment mechanism to adjust the switch point. The application determines whether the switch point reaches an ideal position by the switch point flow rate, and if the switch point does not reach the ideal position, adjusts the switch point flow rate according to the feedback adjustment mechanism to adjust the switch point to reach the ideal position.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to a method, apparatus, system and medium for solving expiratory trigger delay. Background Technology

[0002] Expiratory triggering is a respiratory medicine term commonly used in ventilators and anesthesia machines. It's defined as sensing a patient's exhalation and then the ventilator or anesthesia machine responding to a trigger command by stopping inhalation to assist the patient's breathing. Current practices determine expiratory activity based on a set expiratory trigger (or cessation level) threshold. Specifically, when the patient's inspiratory flow rate decreases to a set percentage of the peak flow rate, it's considered that the patient has begun exhaling. This means judging whether the patient is exhaling based on whether the current real-time flow rate meets the set threshold. However, because the pneumatic valve requires a certain response time to open, this can lead to a delay in expiratory triggering, potentially failing to achieve the desired conversion percentage to exhalation.

[0003] Therefore, existing technologies still need to be improved and developed. Summary of the Invention

[0004] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a method for solving the problem of expiratory trigger delay, which aims to solve the problem of the delay in expiratory trigger, thus failing to achieve the ideal set expiratory percentage.

[0005] The technical solution of the present invention is as follows:

[0006] One method for addressing expiratory trigger delay includes:

[0007] Get the current call forwarding point flow rate;

[0008] Compare the flow rate at the call transfer point with the ideal flow rate to determine whether the call transfer point is abnormal.

[0009] If an abnormality occurs at the call transfer point, the call transfer point flow rate will be revised according to the feedback adjustment mechanism to adjust the call transfer point.

[0010] In one embodiment, prior to obtaining the current call transfer point flow rate, the method further includes:

[0011] Identify the set value triggered by exhalation;

[0012] The percentage of calls forwarded is calculated and set based on the set value and quantitative threshold.

[0013] Set the percentage of forwarded calls as the current cycle trigger threshold.

[0014] In one embodiment, the anomaly type includes early call forwarding and delayed call forwarding.

[0015] In one embodiment, comparing the flow rate at the transfer point with the ideal flow rate to determine whether the transfer point is abnormal includes:

[0016] If the call transfer point flow rate reaches the ideal flow rate, then the call transfer point is normal;

[0017] If the call transfer point flow rate does not reach and / or exceeds the ideal flow rate, the call transfer point is abnormal.

[0018] In one embodiment, the statement that a call point is abnormal if the flow rate at the call point does not reach and / or exceeds the ideal flow rate specifically includes:

[0019] If the call transfer point flow rate does not reach the ideal flow rate, then it is confirmed that the call transfer point has been transferred ahead of schedule.

[0020] If the call transfer point flow rate exceeds the ideal flow rate, then the call transfer point is confirmed to be lagging behind.

[0021] In one embodiment, adjusting the call transfer point flow rate and regulating the call transfer point based on the call transfer point anomaly type via a feedback adjustment mechanism includes:

[0022] Obtain the flow rate at the exhalation point and the maximum inspiratory flow rate;

[0023] The difference between the call points is calculated based on the call point flow rate, the maximum inspiratory flow rate, and the set call percentage;

[0024] The quantitative threshold is adjusted to revise the call transfer point based on the difference.

[0025] In one embodiment, the feedback adjustment mechanism specifically includes:

[0026] If the call transfer point is transferred ahead of schedule, the quantitative threshold is reduced based on the difference.

[0027] If the call transfer point lags behind the call transfer, the quantitative threshold is increased based on the difference.

[0028] An apparatus for addressing expiratory trigger delay, the apparatus comprising:

[0029] The acquisition module is used to obtain the current call transfer point flow rate;

[0030] The judgment module is used to compare the flow rate at the call transfer point with the ideal flow rate to determine whether the call transfer point is abnormal.

[0031] The adjustment module is used to revise the call transfer point flow rate and adjust the call transfer point according to the type of call transfer point abnormality through a feedback adjustment mechanism.

[0032] A system for resolving expiratory trigger delay, the system comprising at least one processor; and,

[0033] A memory communicatively connected to the at least one processor; wherein,

[0034] The memory stores instructions that can be executed by the at least one processor to enable the at least one processor to perform the above-described method for resolving expiratory trigger delay.

[0035] A non-volatile computer-readable storage medium storing computer-executable instructions that, when executed by one or more processors, cause the one or more processors to perform the above-described method for resolving exhalation trigger delay.

[0036] Beneficial effects: This invention discloses a method, device, system and medium for solving the problem of expiratory trigger delay. Compared with the prior art, the embodiments of this invention determine whether the expiratory trigger point has reached the ideal expiratory trigger point by measuring the flow rate at the expiratory trigger point. If the ideal position has not been reached, the flow rate at the expiratory trigger point is adjusted according to the feedback adjustment mechanism to adjust the expiratory trigger point to reach the ideal position. Attached Figure Description

[0037] The present invention will be further described below with reference to the accompanying drawings and embodiments. In the accompanying drawings:

[0038] Figure 1 A flowchart of a method for solving expiratory trigger delay provided by an embodiment of the present invention;

[0039] Figure 2 This is another flowchart of a method for solving expiratory trigger delay provided by an embodiment of the present invention;

[0040] Figure 3 A schematic diagram of the functional modules of the device for solving the problem of expiratory trigger delay provided in an embodiment of the present invention;

[0041] Figure 4 This is a schematic diagram of the hardware structure of a system for solving exhalation trigger delay provided in an embodiment of the present invention. Detailed Implementation

[0042] To make the objectives, technical solutions, and effects of this invention clearer and more explicit, the invention is further described in detail below. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. The embodiments of the invention are described below in conjunction with the accompanying drawings.

[0043] Please see Figure 1 , Figure 1 A flowchart illustrating one embodiment of the method for resolving expiratory trigger delay provided by the present invention. Figure 1 As shown, the method includes the following steps:

[0044] S100, Get the current call transfer point flow rate;

[0045] S200. Compare the flow rate at the transfer point with the ideal flow rate to determine whether the transfer point is abnormal.

[0046] S300. If an abnormality occurs at the call transfer point, the call transfer point flow rate is revised according to the feedback adjustment mechanism to adjust the call transfer point.

[0047] In this embodiment, the flow rate at the current switching point of the medical device is acquired, and compared with a preset ideal flow rate to determine whether an abnormality has occurred at the current switching point. Based on the type of abnormality, the flow rate at the switching point is revised through a feedback adjustment mechanism to adjust the position of the switching point to reach the ideal switching point. The abnormality types include premature switching and delayed switching. Through periodic feedback adjustment, the point at which the pneumatic valve actually begins switching after the response time reaches the ideal peak flow rate percentage, which can effectively solve the exhalation trigger delay caused by the valve opening response time.

[0048] In one embodiment, prior to step S100, the method further includes:

[0049] Identify the set value triggered by exhalation;

[0050] The percentage of calls forwarded is calculated and set based on the set value and quantitative threshold.

[0051] Set the percentage of forwarded calls as the current cycle trigger threshold.

[0052] In this embodiment, an exhalation trigger setpoint is identified. Based on this setpoint, a quantitative threshold, FixedThresh, is added to determine the percentage of exhalation-to-exphalation transition (SetTurnPercent) at the time of exhalation triggering. SetTurnPercent = SetTurnPercent + FixedThresh serves as the current cycle trigger threshold, which controls the opening time of the pneumatic valve in the current cycle. By advancing the exhalation-to-exphalation point based on the increased quantitative threshold, the opening time of the pneumatic valve will inevitably be advanced. Then, through periodic feedback adjustment, the point at which the pneumatic valve actually begins to transition to exhalation after the response time reaches the ideal peak flow rate percentage, effectively solving the exhalation trigger delay caused by valve opening response time.

[0053] In one embodiment, step S200 includes:

[0054] If the call transfer point flow rate reaches the ideal flow rate, then the call transfer point is normal;

[0055] If the call transfer point flow rate does not reach and / or exceeds the ideal flow rate, the call transfer point is abnormal.

[0056] In this embodiment, the actual flow rate at the call transfer point is obtained and compared with the ideal flow rate. When the flow rate at the call transfer point reaches the ideal flow rate, i.e., the ideal call transfer point has been reached and no abnormality occurs, it is considered a normal call transfer point state, and the current quantitative threshold should be maintained. When the flow rate at the call transfer point does not reach the ideal flow rate, i.e., the call transfer point has not reached the set ideal call transfer point, the call transfer point is considered abnormal. When the flow rate at the call transfer point exceeds the ideal flow rate, i.e., the call transfer point exceeds the set ideal call transfer point, the call transfer point is considered abnormal. Accurate detection of whether an abnormality has occurred at the call transfer point allows for rapid response and resolution of abnormal situations.

[0057] In one embodiment, the abnormality type includes early call forwarding and delayed call forwarding, specifically including:

[0058] If the call transfer point flow rate does not reach the ideal flow rate, then it is confirmed that the call transfer point has been transferred ahead of schedule.

[0059] If the call transfer point flow rate exceeds the ideal flow rate, then the call transfer point is confirmed to be lagging behind.

[0060] In this embodiment, if the flow rate at the call-to-call point does not reach the ideal flow rate, or the call-to-call point does not reach the set flow rate target percentage, i.e. the pneumatic valve opens earlier, then the call-to-call point is confirmed to be calling earlier. If the flow rate at the call-to-call point exceeds the ideal flow rate, or the call-to-call point exceeds the set flow rate target percentage, i.e. the pneumatic valve opens later, then the call-to-call point is confirmed to be calling later.

[0061] In one embodiment, step S300 includes:

[0062] Obtain the flow rate at the exhalation point and the maximum inspiratory flow rate;

[0063] The difference between the call points is calculated based on the call point flow rate, the maximum inspiratory flow rate, and the set call percentage;

[0064] The quantitative threshold is adjusted to revise the call transfer point based on the difference.

[0065] In this embodiment, the actual turnaround flow rate (ActualTurnFlow) and the maximum inhalation flow rate (MaxInspFlow) at the actual turnaround point are obtained. The difference (Error) is calculated using a formula based on the turnaround point flow rate, the inhalation flow rate, and the set turnaround percentage.

[0066]

[0067] Adjusting the quantitative threshold when the call transfer point is abnormal based on the difference, adjusting the call transfer point to a normal state, and solving the problem of premature or delayed call transfer.

[0068] In one embodiment, the feedback regulation mechanism includes:

[0069] If the call transfer point is transferred ahead of schedule, the quantitative threshold is reduced based on the difference.

[0070] If the call transfer point lags behind the call transfer, the quantitative threshold is increased based on the difference.

[0071] In this embodiment, if the call switching point is switched early, that is, the call switching point has not yet reached the set peak flow rate target percentage, it is necessary to adjust according to the difference, reduce the quantitative threshold and limit the amplitude to delay the opening time of the pneumatic valve. If the call switching point is switched late, that is, the call switching point has exceeded the set peak flow rate target percentage, it is necessary to adjust according to the difference, increase the quantitative threshold and limit the amplitude to advance the opening time of the pneumatic valve.

[0072] Another embodiment of the present invention also provides an application flowchart of the method for solving expiratory trigger delay, such as... Figure 2 As shown, it includes the following steps:

[0073] (1) Identify the exhalation trigger setting value;

[0074] (2) Increase the quantitative threshold;

[0075] (3) Determine whether the current cycle call transfer point is ahead, behind, or normal;

[0076] (4) The call transfer point is normal; maintain the current quantitative threshold.

[0077] (5) Call forwarding at the forwarding point reduces the quantitative threshold;

[0078] (6) Delayed call forwarding at the call forwarding point increases the quantitative threshold;

[0079] (7) Adjust the call transfer point to the ideal call transfer point.

[0080] In this embodiment, the exhalation trigger setting value is first identified, and a quantitative threshold is added based on the setting value to advance the exhalation transition point. The flow rate at the exhalation transition point is obtained, and it is determined whether the exhalation transition point of the current cycle is advanced, delayed, or normal. If the exhalation transition point is normal, the current quantitative threshold is protected. If the exhalation transition point is advanced, the quantitative threshold is reduced. If the exhalation transition point is delayed, the quantitative exhalation transition point is increased. According to the feedback adjustment mechanism, the exhalation transition point is controlled to reach the ideal exhalation transition point, effectively solving the problem of exhalation trigger delay caused by valve opening response time.

[0081] Another embodiment of the present invention also provides a device for solving expiratory trigger delay, such as... Figure 3 As shown, the device includes:

[0082] Module 11 is used to obtain the current call transfer point flow rate;

[0083] The judgment module 12 is used to compare the flow rate at the call transfer point with the ideal flow rate to determine whether the call transfer point is abnormal.

[0084] The adjustment module 13 is used to adjust the call transfer point flow rate according to the feedback adjustment mechanism if an abnormality occurs at the call transfer point.

[0085] The module referred to in this invention is a series of computer program instruction segments that can perform specific functions. It is more suitable than a program for solving the execution process of exhalation trigger delay. For the specific implementation of each module, please refer to the corresponding method embodiments above, which will not be repeated here.

[0086] In one embodiment, the device further includes a preset value module:

[0087] The recognition unit is used to recognize the set value triggered by exhalation;

[0088] The setting unit is used to calculate and set the call forwarding percentage based on the set value and the quantitative threshold.

[0089] The trigger threshold unit is used to set the percentage of forwarded calls as the trigger threshold for the current cycle.

[0090] In one embodiment, the determining module 12 includes:

[0091] The call transfer point normal unit is used to indicate that the call transfer point is normal if the flow rate at the call transfer point reaches the ideal flow rate.

[0092] The call transfer point abnormality unit is used to identify a call transfer point abnormality if the call transfer point flow rate does not reach and / or exceeds the ideal flow rate.

[0093] In one embodiment, the call transfer point anomaly unit specifically includes:

[0094] If the call transfer point flow rate does not reach the ideal flow rate, then it is confirmed that the call transfer point has been transferred ahead of schedule.

[0095] If the call transfer point flow rate exceeds the ideal flow rate, then the call transfer point is confirmed to be lagging behind.

[0096] In one embodiment, the adjustment module 13 includes:

[0097] A flow rate acquisition unit is used to acquire the flow rate at the exhalation point and the maximum inhalation flow rate;

[0098] The difference calculation unit is used to calculate the difference between the transfer points based on the transfer point flow rate, the maximum inhalation flow rate, and the set transfer percentage;

[0099] A call transfer point revision unit is used to adjust the quantitative threshold to revise the call transfer point based on the difference.

[0100] Another embodiment of the present invention also provides a system for solving expiratory trigger delay, such as Figure 4 As shown, system 10 includes:

[0101] One or more processors 110 and memory 120, Figure 4 The following description uses a processor 110 as an example. The processor 110 and the memory 120 can be connected via a bus or other means. Figure 4 Taking the example of a connection between China and Israel via a bus.

[0102] Processor 110 is used to perform various control logics of system 10, and can be a general-purpose processor, digital signal processor (DSP), application-specific integrated circuit (ASIC), field-programmable gate array (FPGA), microcontroller, ARM (Acorn RISC Machine) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination of these components. Furthermore, processor 110 can also be any conventional processor, microprocessor, or state machine. Processor 110 can also be implemented as a combination of computing devices, such as a combination of DSP and microprocessor, multiple microprocessors, one or more microprocessors combined with DSP and / or any other such configuration.

[0103] The memory 120, as a non-volatile computer-readable storage medium, can be used to store non-volatile software programs, non-volatile computer-executable programs, and modules, such as the program instructions corresponding to the method for solving the exhalation trigger delay in the embodiments of the present invention. The processor 110 executes various functional applications and data processing of the system 10 by running the non-volatile software programs, instructions, and units stored in the memory 120, thereby implementing the method for solving the exhalation trigger delay in the above-described method embodiments.

[0104] The memory 120 may include a program storage area and a data storage area. The program storage area may store the operating system and applications required for at least one function; the data storage area may store data created according to the use of the system 10. Furthermore, the memory 120 may include high-speed random access memory and may also include non-volatile memory, such as at least one disk storage device, flash memory device, or other non-volatile solid-state storage device. In some embodiments, the memory 120 may optionally include memory remotely located relative to the processor 110, and these remote memories may be connected to the system 10 via a network. Examples of such networks include, but are not limited to, the Internet, corporate intranets, local area networks, mobile communication networks, and combinations thereof.

[0105] One or more units are stored in memory 120, and when executed by one or more processors 110, they perform the method for solving the exhalation trigger delay in any of the above method embodiments, for example, performing the method described above. Figure 1 The method steps S100 to S300.

[0106] This invention provides a non-volatile computer-readable storage medium storing computer-executable instructions that are executed by one or more processors, for example, to perform the operations described above. Figure 1 The method steps S100 to S300.

[0107] As examples, non-volatile storage media can include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable ROM (EEPROM), or flash memory. Volatile memory can include random access memory (RAM) as external cache memory. By way of illustration and not limitation, RAM can be obtained in many forms such as synchronous RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), dual data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), Synchlink DRAM (SLDRAM), and direct Rambus RAM (DRRAM). The memory components or memories disclosed in the operating environment described herein are intended to include one or more of these and / or any other suitable types of memory.

[0108] It should be noted that there is no necessary order between the above steps. Those skilled in the art will understand from the description of the embodiments of the present invention that the above steps may have different execution orders in different embodiments, that is, they may be executed in parallel or in turn, etc.

[0109] In summary, the method, apparatus, system, and medium disclosed in this invention for resolving expiratory trigger delay include: acquiring the current expiratory point flow rate; comparing the expiratory point flow rate with the ideal flow rate to determine if the expiratory point is abnormal; and if the expiratory point is abnormal, revising the expiratory point flow rate according to a feedback adjustment mechanism to adjust the expiratory point. This application determines whether the expiratory point has reached the ideal position based on the expiratory point flow rate; if it has not reached the ideal position, it adjusts the expiratory point flow rate according to the feedback adjustment mechanism to adjust the expiratory point to the ideal position.

[0110] The contents already described in this specification and accompanying drawings include examples of methods, apparatus, systems, and media capable of providing solutions to expiratory trigger delay. It is certainly not possible to describe every conceivable combination of elements and / or methods for the purpose of describing the various features of this disclosure, but it will be appreciated that many other combinations and substitutions of the disclosed features are possible. Therefore, it will be apparent that various modifications can be made to this disclosure without departing from the scope or spirit of this disclosure. Furthermore, or in alternatives, other embodiments of this disclosure may become apparent from consideration of this specification and accompanying drawings and from practice of this disclosure as presented herein. It is intended that the examples presented in this specification and accompanying drawings be considered illustrative rather than limiting in all respects. Although specific terminology is used herein, it is used in a general and descriptive sense and is not intended for limiting purposes.

Claims

1. A method for solving expiratory trigger delay, characterized in that, include: Before obtaining the current call transfer point flow rate, the method also includes: Identify the set value triggered by exhalation; The percentage of calls forwarded is calculated and set based on the set value and quantitative threshold. Use the set call forwarding percentage as the current cycle trigger threshold; Get the current call forwarding point flow rate; Compare the flow rate at the call transfer point with the ideal flow rate to determine whether the call transfer point is abnormal. The step of comparing the flow rate at the transfer point with the ideal flow rate to determine whether the transfer point is abnormal includes: If the call transfer point flow rate reaches the ideal flow rate, then the call transfer point is normal; If the call transfer point flow rate does not reach and / or exceeds the ideal flow rate, the call transfer point is abnormal; The statement that a call transfer point is abnormal if its flow rate does not reach and / or exceeds the ideal flow rate includes: If the flow rate at the call-to-call point does not reach the ideal flow rate, or the call-to-call point does not reach the set flow rate target percentage, the pneumatic valve opens earlier to confirm that the call-to-call point is opened earlier. If the flow rate at the call-to-call point exceeds the ideal flow rate, and the call-to-call point exceeds the set flow rate target percentage, the pneumatic valve will open with a time lag, confirming that the call-to-call point is delayed. If an abnormality occurs at the call transfer point, the call transfer point flow rate will be revised according to the feedback adjustment mechanism to adjust the call transfer point. If an abnormality occurs at the call transfer point, the call transfer point flow rate is revised according to the feedback adjustment mechanism to adjust the call transfer point, including: Obtain the flow rate at the exhalation point and the maximum inspiratory flow rate; The difference between the call points is calculated based on the call point flow rate, the maximum inspiratory flow rate, and the set call point percentage; the formula for the difference between the call points is as follows: ， Among them, Error is the difference, ActualTurnFlow is the call transfer point flow rate, MaxInspFlow is the maximum inhalation flow rate, and SetTurnPercent is the set call transfer percentage; The quantitative threshold is adjusted to revise the call transfer point based on the difference.

2. The method for solving expiratory trigger delay according to claim 1, characterized in that, Abnormal types include early call forwarding and delayed call forwarding.

3. The method for solving expiratory trigger delay according to claim 1, characterized in that, The feedback adjustment mechanism specifically includes: If the call transfer point is transferred ahead of schedule, the quantitative threshold is reduced based on the difference. If the call transfer point lags behind the call transfer, the quantitative threshold is increased based on the difference.

4. A device for solving expiratory trigger delay, characterized in that, The device includes: The acquisition module is used to obtain the current call transfer point flow rate; The judgment module is used to compare the flow rate at the call transfer point with the ideal flow rate to determine whether the call transfer point is abnormal. The adjustment module is used to revise the call transfer point flow rate and adjust the call transfer point according to the feedback adjustment mechanism if an abnormality occurs at the call transfer point. The step of comparing the flow rate at the transfer point with the ideal flow rate to determine whether the transfer point is abnormal includes: If the call transfer point flow rate reaches the ideal flow rate, then the call transfer point is normal; If the call transfer point flow rate does not reach and / or exceeds the ideal flow rate, the call transfer point is abnormal; The statement that a call transfer point is abnormal if its flow rate does not reach and / or exceeds the ideal flow rate includes: If the flow rate at the call-to-call point does not reach the ideal flow rate, or the call-to-call point does not reach the set flow rate target percentage, the pneumatic valve opens earlier to confirm that the call-to-call point is opened earlier. If the flow rate at the call-to-call point exceeds the ideal flow rate, and the call-to-call point exceeds the set flow rate target percentage, the pneumatic valve will open with a time lag, confirming that the call-to-call point is delayed. Before obtaining the current call transfer point flow rate, the method also includes: Identify the set value triggered by exhalation; The percentage of calls forwarded is calculated and set based on the set value and quantitative threshold. Use the set call forwarding percentage as the current cycle trigger threshold; If an abnormality occurs at the call transfer point, the call transfer point flow rate is revised according to the feedback adjustment mechanism to adjust the call transfer point, including: Obtain the flow rate at the exhalation point and the maximum inspiratory flow rate; The difference between the call points is calculated based on the call point flow rate, the maximum inspiratory flow rate, and the set call point percentage; the formula for the difference between the call points is as follows: ， Among them, Error is the difference, ActualTurnFlow is the call transfer point flow rate, MaxInspFlow is the maximum inhalation flow rate, and SetTurnPercent is the set call transfer percentage; The quantitative threshold is adjusted to revise the call transfer point based on the difference.

5. A system for solving expiratory trigger delay, characterized in that, The system includes at least one processor; and, A memory communicatively connected to the at least one processor; wherein, The memory stores instructions that can be executed by the at least one processor to enable the at least one processor to perform the method for resolving expiratory trigger delay as described in any one of claims 1-3.

6. A non-volatile computer-readable storage medium, characterized in that, The non-volatile computer-readable storage medium stores computer-executable instructions that, when executed by one or more processors, cause the one or more processors to perform the method for resolving expiratory trigger delay as described in any one of claims 1-3.

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