A multi-cuff coordinated inflation and deflation control method and system
By using a multi-cuff coordinated inflation/deflation control method, the problems of insufficient synchronization and poor pressure consistency in multi-cuff detection are solved, thereby improving detection accuracy and user comfort, and enhancing safety and reliability under abnormal conditions.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- BEIJING YISHAN MEDICAL TECH CO LTD
- Filing Date
- 2026-05-06
- Publication Date
- 2026-07-10
AI Technical Summary
Existing technologies for multi-cuff blood pressure monitoring suffer from insufficient synchronization, poor pressure consistency, weak abnormal linkage processing capabilities, and inadequate safety, especially in home monitoring scenarios.
The multi-cuff coordinated inflation and deflation control method is adopted. By acquiring the current pressure status and detection process information of the cuff channel, the target pressure control strategy is determined, and coordinated inflation, coordinated holding and coordinated deflation control are executed. Pressure compensation and consistency correction are performed in real time, and single-channel or multi-channel linkage processing and safety depressurization are carried out for abnormal situations.
It achieves pressure consistency and synchronization in multi-cuff detection, improves detection accuracy and user comfort, and enhances safety and reliability in abnormal situations.
Smart Images
Figure CN122363390A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical fields of non-invasive physiological parameter measurement, pneumatic actuator control, and multi-channel blood pressure detection, and particularly relates to a multi-cuff collaborative inflation and deflation control method and system. Background Art
[0002] In scenarios such as multi-cuff blood pressure detection, ankle-brachial index detection, pulse wave velocity detection, and home arteriosclerosis detection, it is usually necessary to control multiple cuff channels to perform inflation, holding, and deflation operations simultaneously or quasi-simultaneously. Compared with single-cuff detection, in the multi-cuff scenario, not only is it necessary to control each cuff channel to reach the target pressure, but also the pressure consistency, pressure build-up efficiency, acquisition window synchronization, and linkage safety in abnormal situations between multiple cuff channels need to be considered.
[0003] Most existing pneumatic control schemes are designed around single-channel cuffs, or simply perform synchronous on-off control of multiple cuffs. Such methods are prone to problems such as inconsistent pressure build-up speeds of different cuffs, asynchronous detection windows, large differences in pressure states of different limbs, difficulty in maintaining unified acquisition conditions, and lack of a reasonable linkage processing mechanism in abnormal situations in the multi-cuff scenario.
[0004] In the home detection scenario, the above problems are more prominent. Since individual limb sizes, cuff tightness, and real-time blood flow states may all be different, multiple cuffs often exhibit different dynamic change characteristics during inflation and deflation. If a simple unified inflation or unified deflation strategy is still adopted, it is difficult to balance detection accuracy, user comfort, and execution safety. Therefore, a collaborative inflation and deflation control scheme suitable for multi-cuff detection devices is needed, enabling multiple cuff channels to perform collaboratively, locally compensate, and perform linkage safety processing according to the detection stage, real-time pressure state, and abnormal situations. Summary of the Invention
[0005] The purpose of the present invention is to provide a multi-cuff collaborative inflation and deflation control method and system to solve the problems of insufficient synchronization of multi-cuff inflation and deflation control, poor pressure consistency, weak abnormal linkage processing ability, and untimely safety processing in the prior art.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: On one hand, it provides a multi-cuff coordinated inflation / deflation control method, comprising: acquiring current pressure status information and detection process stage information of multiple cuff channels; determining a target pressure control strategy corresponding to each cuff channel based on the detection process stage information; performing at least one of coordinated inflation control, coordinated holding control, and coordinated deflation control on the multiple cuff channels based on the target pressure control strategy; performing pressure compensation control on at least one cuff channel during the control process based on the real-time pressure status information of each cuff channel; and performing single-channel processing, multi-channel linkage processing, or safety depressurization processing according to the abnormality type and the scope of its impact when any abnormality is detected in any cuff channel.
[0007] Furthermore, the plurality of cuff channels includes at least two of the following: a left upper arm cuff channel, a right upper arm cuff channel, a left ankle cuff channel, and a right ankle cuff channel. The current pressure status information includes at least one of the following: current cuff static pressure value, pressure change rate, target pressure difference, pressure consistency deviation, and pressure build-up rate. The detection process stage information includes at least one of the following: pre-inflation stage, synchronous inflation stage, constant pressure maintenance stage, slow deflation stage, and rapid depressurization stage.
[0008] Furthermore, the target pressure control strategies for different cuff channels may be the same or different, and the target pressure control strategy includes at least one of the following: target pressure value, pressure build-up rate, inflation priority, pressure maintenance range, and deflation rate.
[0009] Furthermore, the coordinated inflation control includes at least one of the following: multi-cuff synchronous inflation, group synchronous inflation, staged inflation, master-slave inflation, and synchronous inflation followed by differential fine-tuning. Multi-cuff synchronous inflation can be achieved by simultaneously driving multiple air pumps or multiple inflation execution branches; synchronous inflation followed by differential fine-tuning can continue to inflate channels with lower pressure after multiple cuff channels have approached the target pressure, while pausing inflation or maintaining the state of channels with higher pressure.
[0010] Furthermore, the coordinated holding control includes maintaining multiple cuff channels within their respective target pressure ranges during the constant pressure holding phase, and performing gas replenishment or micro-release adjustment based on pressure drift; the coordinated release control includes at least one of multi-cuff synchronous slow release, multi-cuff differentiated slow release, group release, and single-channel compensated release. The multi-cuff differentiated slow release can be configured with different release rates for different cuff channels based on real-time pressure deviations or oscillation wave acquisition requirements.
[0011] Furthermore, the pressure compensation control includes at least one of the following: replenishing air to channels with low pressure, slightly releasing air to channels with high pressure, and adjusting control parameters for channels with persistent deviations. The triggering basis is the target pressure difference of a single channel and / or the pressure consistency deviation between multiple cuff channels. When the pressure consistency deviation between multiple cuff channels exceeds a preset threshold, multi-channel consistency correction control can be executed. This multi-channel consistency correction control includes at least one of the following: uniformly adjusting the release rate, local air replenishment, local depressurization, and re-pressurization after a phased rollback.
[0012] Furthermore, the anomaly types include at least one of the following: single-channel pressure build-up failure anomaly, single-channel pressure drift anomaly, single-channel leakage anomaly, multi-channel consistency anomaly, overpressure anomaly, and user termination anomaly. The single-channel handling includes pausing, replenishing gas, slightly releasing gas, re-pressurizing, or depressurizing only the abnormal cuff channel; the multi-channel coordinated handling includes pausing, phase rollback, re-pressurizing, or re-depressurizing multiple cuff channels simultaneously when an anomaly in one cuff channel affects the overall measurement validity; the safety pressure relief handling includes rapidly depressurizing all cuff channels, or prioritizing rapid depressurization of the abnormal cuff channel before performing safety handling on the remaining cuff channels. When an overpressure anomaly or a persistent anomaly exceeds a preset duration, safety pressure relief is prioritized.
[0013] Furthermore, the method is used in at least one of the following scenarios: multi-cuff blood pressure detection, ankle-brachial index detection, pulse wave velocity detection, and home-based arteriosclerosis detection. On the other hand, the present invention also provides a multi-cuff coordinated inflation / deflation control system for implementing the above method.
[0014] Compared with the prior art, the present invention has at least the following beneficial effects: it can perform more precise coordinated inflation and deflation control on multiple cuff channels according to the multi-cuff detection stage; it can improve the consistency of the multi-cuff detection window through real-time pressure compensation and consistency correction; and it can perform single-channel processing, multi-channel linkage processing and safety pressure relief processing according to the anomaly type and impact range, thereby improving detection reliability and safety of use. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall process of the method of the present invention.
[0016] Figure 2 This is a schematic diagram of the multi-cuff coordinated inflation control of the present invention.
[0017] Figure 3 This is a schematic diagram illustrating the synergistic retention and differentiated venting control of the present invention.
[0018] Figure 4 This is a schematic diagram of the pressure compensation and consistency correction control of the present invention.
[0019] Figure 5 This is a schematic diagram of the abnormal linkage and safety handling of the present invention. Detailed Implementation
[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments, but the scope of protection of the present invention is not limited to the following embodiments.
[0021] Example 1: Overall Method Flow.
[0022] like Figure 1 As shown, the method of the present invention includes: state acquisition 1, strategy generation 2, cooperative execution 3, compensation control 4, and anomaly handling 5. State acquisition 1 is used to acquire the current pressure status information and detection process stage information of multiple cuff channels; strategy generation 2 is used to determine the target pressure control strategy corresponding to each cuff channel; cooperative execution 3 is used to perform cooperative inflation, cooperative holding, and cooperative deflation; compensation control 4 is used to perform local compensation based on real-time pressure deviation; and anomaly handling 5 is used to perform single-channel processing, multi-channel linkage processing, or safety pressure relief processing when an anomaly is detected.
[0023] In one embodiment, the plurality of cuff channels includes at least two of a left upper arm cuff channel, a right upper arm cuff channel, a left ankle cuff channel, and a right ankle cuff channel. Current pressure status information may include at least one of the following: current cuff static pressure value, pressure change rate, target pressure difference, pressure consistency deviation, and pressure build-up rate; detection process stage information may include at least one of the following: pre-inflation stage, synchronous inflation stage, constant pressure maintenance stage, slow deflation stage, and rapid depressurization stage.
[0024] In one implementation, the target pressure control strategy may be the same or different for different cuff channels. The target pressure control strategy includes at least one of the following: target pressure value, pressure build-up rate, inflation priority, pressure maintenance range, and deflation rate, so that the cuff channels corresponding to different limbs can enter the target pressure state according to the detection requirements.
[0025] Example 2: Multi-cuff coordinated inflation control.
[0026] like Figure 2 As shown, the multi-cuff coordinated inflation control includes: synchronous inflation 6, target proximity determination 7, differential fine-tuning 8, and inflation completion determination 9. In one embodiment, multiple cuff channels simultaneously build up pressure during the synchronous inflation 6 stage; when the real-time pressure of multiple cuff channels approaches their respective target pressure range, the target proximity determination 7 is entered; subsequently, inflation is continued for channels with lower pressure, while inflation is paused or maintained for channels with higher pressure to perform differential fine-tuning 8; after all multiple cuff channels have entered the target range, the inflation completion determination 9 is output.
[0027] In another implementation, grouped synchronous inflation, staged inflation, or master-slave inflation can be used according to the pressure build-up requirements of different cuff channels to balance pressure build-up efficiency and comfort. The multi-cuff synchronous inflation can be achieved by simultaneously driving multiple air pumps or multiple inflation execution branches.
[0028] Example 3: Synergistic maintenance and differentiated venting control.
[0029] like Figure 3 As shown, the coordinated maintenance and differentiated venting control includes: constant pressure maintenance 10, pressure drift detection 11, synchronous slow venting 12, and differentiated venting 13. During the constant pressure maintenance 10 stage, multiple cuff channels are maintained within the target pressure range; when pressure drift is detected in some cuff channels, pressure drift detection 11 is executed; subsequently, based on the pressure deviation of different cuff channels and the data acquisition requirements, synchronous slow venting 12 or differentiated venting 13 is executed to balance the consistency of multi-channel data acquisition and the pressure trajectory control of individual channels.
[0030] When necessary, single-channel compensatory venting, including additional venting or replenishment, can be performed on at least one of the cuff channels that deviate from the target pressure trajectory.
[0031] Example 4: Pressure compensation and consistency correction control.
[0032] like Figure 4 As shown, the pressure compensation and consistency correction control includes: pressure deviation detection 14, local air injection 15, local micro-venting 16, and consistency correction 17. Pressure deviation detection 14 is used to detect the target pressure difference in a single channel and / or the pressure consistency deviation between multiple cuff channels; local air injection 15 is used to compensate for channels with low pressure; local micro-venting 16 is used to correct channels with high pressure; and consistency correction 17 is used to adjust the overall venting rate, local channel pressure build-up, or stage process when the pressure deviation between multiple cuff channels continuously exceeds a threshold.
[0033] The consistency correction 17 may include at least one of the following: uniform adjustment of the venting rate, local gas replenishment, local depressurization, and repressurization after a phase rollback.
[0034] Example 5: Abnormal Linkage and Security Handling.
[0035] like Figure 5As shown, the abnormal linkage and safety handling include: single-channel abnormal identification 18, multi-channel consistency abnormal identification 19, linkage rollback handling 20, and safety pressure relief handling 21. Single-channel abnormal identification 18 is used to identify single-channel abnormalities such as pressure build-up failure, pressure drift, and leakage; multi-channel consistency abnormal identification 19 is used to identify multi-channel abnormalities that affect the overall measurement validity; linkage rollback handling 20 is used to perform single-channel rollback or multi-channel stage rollback according to the scope of the abnormality; safety pressure relief handling 21 is used to perform rapid pressure relief of single or all channels in the event of overpressure abnormality, continuous abnormality, or user-initiated termination.
[0036] In one implementation, when only a single cuff channel malfunctions and its impact on the overall measurement effectiveness is limited, single-channel processing can be prioritized; when a cuff channel malfunction has already affected the overall measurement effectiveness, multi-channel linkage processing can be triggered; when an overpressure malfunction or a continuous malfunction exceeds a preset duration, safety pressure relief processing can be prioritized.
[0037] Example 6: System Structure.
[0038] This invention also provides a multi-cuff coordinated inflation / deflation control system, comprising: a status acquisition module, a strategy generation module, a coordinated execution module, a compensation control module, and an anomaly handling module. The status acquisition module acquires the current pressure status information and detection process stage information of multiple cuff channels; the strategy generation module determines the target pressure control strategy corresponding to each cuff channel based on the detection process stage information; the coordinated execution module performs at least one of coordinated inflation control, coordinated holding control, and coordinated deflation control on multiple cuff channels; the compensation control module performs pressure compensation control based on the real-time pressure status information of each cuff channel; and the anomaly handling module performs single-channel processing, multi-channel linkage processing, or safety pressure relief processing when an anomaly is detected in any cuff channel.
[0039] In one embodiment, the collaborative execution module is further configured to execute at least one control strategy among multi-cuff synchronous inflation, synchronous followed by differentiated fine-tuning inflation, multi-cuff synchronous slow deflation, and multi-cuff differentiated slow deflation; the anomaly handling module is further configured to trigger rapid depressurization of all cuff channels when overpressure anomaly or persistent anomaly conditions are met. The system can be deployed in multi-cuff blood pressure monitoring devices, ankle-brachial index monitoring devices, pulse wave velocity monitoring devices, or home arteriosclerosis monitoring devices.
Claims
1. A method for controlling the coordinated inflation and deflation of multiple cuffs, characterized in that, The process includes the following steps: S1. Obtaining current pressure status information and detection process stage information for multiple cuff channels; S2. Determining the target pressure control strategy for each cuff channel based on the detection process stage information; S3. Performing at least one of coordinated inflation control, coordinated holding control, and coordinated deflation control on multiple cuff channels based on the target pressure control strategy; S4. Performing pressure compensation control on at least one cuff channel during the control process based on the real-time pressure status information of each cuff channel; S5. When an abnormality is detected in any cuff channel, performing single-channel processing, multi-channel linkage processing, or safety pressure relief processing based on the type and scope of the abnormality.
2. The method according to claim 1, characterized in that, The plurality of cuff channels includes at least two of the following: left upper arm cuff channel, right upper arm cuff channel, left ankle cuff channel, and right ankle cuff channel; the current pressure status information includes at least one of the following: current cuff static pressure value, pressure change rate, target pressure difference, pressure consistency deviation, and pressure build-up rate; the detection process stage information includes at least one of the following: pre-inflation stage, synchronous inflation stage, constant pressure maintenance stage, slow deflation stage, and rapid depressurization stage.
3. The method according to claim 1, characterized in that, The target pressure control strategies for different cuff channels may be the same or different, and the target pressure control strategy includes at least one of the following: target pressure value, pressure build-up rate, inflation priority, pressure maintenance range, and deflation rate.
4. The method according to claim 1, characterized in that, The coordinated inflation control includes at least one of the following: multi-cuff synchronous inflation, group synchronous inflation, staged inflation, master-slave inflation, and synchronous inflation followed by differential fine-tuning inflation. Specifically, multi-cuff synchronous inflation involves simultaneously driving multiple air pumps or multiple inflation execution branches to inflate multiple cuff channels until each cuff channel reaches its corresponding target pressure range. The synchronous inflation followed by differential fine-tuning inflation involves, after multiple cuff channels have approached the target pressure, continuing to inflate channels with lower pressure and pausing or maintaining inflation in channels with higher pressure.
5. The method according to claim 1, characterized in that, The coordinated holding control includes maintaining multiple cuff channels within their respective target pressure ranges during the constant pressure holding phase, and performing gas replenishment or micro-gas release adjustment based on pressure drift. The coordinated deflation control includes at least one of multi-cuff synchronous slow deflation, multi-cuff differentiated slow deflation, group deflation, and single-channel compensating deflation; wherein, the multi-cuff differentiated slow deflation includes setting different deflation speeds for different cuff channels according to the real-time pressure deviation or oscillation wave acquisition requirements of different cuff channels, and the single-channel compensating deflation includes performing additional deflation or replenishment adjustment on at least one cuff channel that deviates from the target pressure trajectory during the overall slow deflation process of multiple cuff channels.
6. The method according to claim 1, characterized in that, The pressure compensation control includes at least one of the following: replenishing air to the low-pressure channel, slightly releasing air to the high-pressure channel, and adjusting the control parameters for the channel with persistent deviation. The triggering basis is the target pressure difference of a single channel and / or the pressure consistency deviation between multiple cuff channels.
7. The method according to claim 6, characterized in that, When the pressure consistency deviation between multiple cuff channels exceeds a preset threshold, multi-channel consistency correction control is executed; the multi-channel consistency correction control includes at least one of uniformly adjusting the deflation rate, local gas replenishment, local depressurization, and re-pressurization after phase retreat.
8. The method according to claim 1, characterized in that, The anomaly types include at least one of the following: single-channel pressure build-up failure, single-channel pressure drift, single-channel leakage, multi-channel consistency, overpressure, and user termination. Single-channel handling includes pausing, replenishing gas, slightly releasing gas, re-pressurizing, or depressurizing only the abnormal cuff channel. Multi-channel coordinated handling includes pausing, phase rollback, re-pressurizing, or re-depressurizing multiple cuff channels simultaneously when an anomaly in one cuff channel affects the overall measurement validity. Safe pressure relief handling includes rapidly depressurizing all cuff channels, or prioritizing rapid depressurization of the abnormal cuff channel before performing safe handling on the remaining cuff channels. When an overpressure anomaly or a persistent anomaly exceeds a preset duration, safe pressure relief handling is prioritized.
9. The method according to claim 1, characterized in that, The method is used in at least one of the following scenarios: multi-cuff blood pressure detection, ankle-brachial index detection, pulse wave velocity detection, and home arteriosclerosis detection.
10. A multi-cuff coordinated inflation / deflation control system, characterized in that, It includes a status acquisition module, a strategy generation module, a collaborative execution module, a compensation control module, and an exception handling module; the status acquisition module is used to acquire the current pressure status information and detection process stage information of multiple cuff channels; the strategy generation module is used to determine the target pressure control strategy corresponding to each cuff channel based on the detection process stage information; The collaborative execution module is used to perform at least one of collaborative inflation control, collaborative holding control and collaborative deflation control on multiple cuff channels, and is used to perform at least one of the following control strategies: synchronous inflation of multiple cuffs, synchronous inflation followed by differentiated fine-tuning inflation, synchronous slow deflation of multiple cuffs and differentiated slow deflation of multiple cuffs. The compensation control module is used to perform pressure compensation control based on the real-time pressure status information of each cuff channel; the anomaly handling module is used to perform single-channel processing, multi-channel linkage processing or safety pressure relief processing when an anomaly is detected in any cuff channel, and is used to trigger rapid pressure relief of all cuff channels when overpressure anomaly or continuous anomaly conditions are met.