Blood oxygen and non-invasive blood pressure detection device, method, equipment and medium

Abstract

The invention discloses a blood oxygen and non-invasive blood pressure detection device, method, equipment and medium, and relates to the technical field of non-invasive blood pressure and blood oxygen detection. The device comprises a monitoring and measuring module, an information acquisition module, a colimb judgment module and an alarm marking module. The monitoring and measuring module performs blood pressure measurement when monitoring blood oxygen information of a measured target; the information acquisition module acquires blood oxygen change information and blood pressure change information; due to the fact that blood oxygen reading is distorted due to interference of blood flow in the same limb blood pressure measurement period, the same limb judgment module can directly take blood oxygen change information and blood pressure change information as the basis of same limb detection to judge whether blood oxygen monitoring and blood pressure measurement of a measured target are located on the same limb or not. If yes, the alarm marking module outputs prompt information representing colimb measurement, and marks the blood oxygen change information and the blood pressure change information as colimb measurement data, so that misjudgment of medical staff on the real physiological state of the measured target is avoided, and the accuracy of blood oxygen measurement is improved.

Description

Technical Field

[0001] This application relates to the field of non-invasive blood pressure and blood oxygen detection technology, and in particular to a blood oxygen and non-invasive blood pressure detection device, method, equipment and medium. Background Technology

[0002] Non-invasive blood pressure measurement is primarily based on the principles of auscultation, oscillometrics, or a combination of both. It calculates blood pressure by detecting changes in sound or pulse waves during the inflation and deflation of a limb cuff. Oxygen saturation measurement utilizes the difference in light absorption between oxygenated and deoxygenated hemoglobin, obtaining oxygenation data by detecting changes in the light signal caused by arterial pulsation. Both methods are non-invasive monitoring techniques widely used in patient monitors, but both rely on limb blood flow status during measurement. As the cuff is inflated, it gradually restricts and eventually blocks arterial blood flow, while oxygenation measurement depends on the pulsatile blood flow signal at the fingertip. Therefore, if both methods are applied to the same limb, they may interfere with each other.

[0003] Currently, in clinical practice, there are instances where the pulse oximeter probe and blood pressure cuff are placed on the same limb. This can lead to distorted pulse oximeter readings during blood pressure measurement due to blood flow interference, and the readings require time to stabilize after measurement, potentially causing medical staff to misjudge the patient's true physiological state. In situations where ipsilateral monitoring is necessary due to patient limb limitations, fluctuations in pulse oximeter values ​​can trigger unnecessary alarms. Disabling these alarms, however, weakens the warning function of routine pulse oximeter monitoring, creating a dilemma in clinical use.

[0004] Given the above, how to solve the problem of mutual interference between blood pressure and blood oxygen monitoring on the same side, which leads to distorted readings and false alarms and creates difficulties in clinical judgment, is an urgent problem for technicians in this field. Summary of the Invention

[0005] The purpose of this application is to provide a blood oxygen and non-invasive blood pressure detection device, method, equipment and medium to solve the problem that current ipsilateral blood pressure and blood oxygen monitoring interfere with each other, resulting in distorted readings and false alarms, causing difficulties in clinical judgment.

[0006] To address the aforementioned technical problems, this application provides a blood oxygen and non-invasive blood pressure detection device, comprising:

[0007] The monitoring and measurement module is used to measure the blood pressure of the target while continuously monitoring the target's blood oxygen information;

[0008] The information acquisition module is used to collect information on changes in blood oxygen and blood pressure. The information on changes in blood oxygen includes the continuous change of blood oxygen parameters over time during the period when blood pressure measurement interferes with blood oxygen monitoring. The information on changes in blood pressure includes the continuous change of cuff pressure over time during blood pressure measurement.

[0009] The same limb judgment module is used to determine whether the blood oxygen monitoring and blood pressure measurement of the target are located on the same limb based on the blood oxygen change information and blood pressure change information; if so, the alarm flag module is triggered.

[0010] The alarm marking module is used to output prompt information that characterizes the measurement of the same limb, and to mark the blood oxygen change information and blood pressure change information as the measurement data of the same limb.

[0011] On the one hand, the same limb judgment module includes:

[0012] The time point determination module is used to determine multiple time points of blood oxygen change based on blood oxygen change information, and to determine multiple time points of blood pressure change based on blood pressure change information;

[0013] The first judgment submodule is used to determine whether the blood oxygen monitoring and blood pressure measurement of the target are located on the same limb based on the time points of blood oxygen change and blood pressure change.

[0014] On the other hand, the time point determination module includes:

[0015] The first time point determination submodule is used to determine the start and end time points of blood pressure measurement based on blood pressure change information;

[0016] The second time point determination submodule is used to determine the first time point when the blood oxygen parameter first reaches zero, the second time point when the blood oxygen parameter ends at zero, and the third time point when the blood oxygen parameter recovers to the value before blood pressure measurement, based on the blood oxygen change information.

[0017] Among them, blood oxygenation parameter is perfusion index or pulse rate.

[0018] On the other hand, the first judgment submodule includes:

[0019] The preset condition judgment submodule is used to determine whether preset conditions are met based on changes in blood oxygen and blood pressure. The preset conditions are: blood oxygen parameters exist before the start time point, blood oxygen parameters decrease between the start time point and the first time point, cuff pressure is not less than the systolic blood pressure of the target between the first time point and the second time point, and blood oxygen parameters increase between the second time point and the end time point. If the conditions are met, it is confirmed that blood oxygen monitoring and blood pressure measurement of the target are performed on the same limb; if not, it is confirmed that blood oxygen monitoring and blood pressure measurement of the target are performed on different limbs.

[0020] On the other hand, it also includes:

[0021] The first configuration module is used to configure the time period between the start time point and the third time point as the target delay.

[0022] The first control module is used to disable all blood oxygen-related alarm prompts within the target time delay when the blood pressure measurement of the target is performed again, and to restore all blood oxygen-related alarm prompts after the target time delay.

[0023] The labeling module is used to label all blood oxygenation information within the target time delay as measurements of the same limb.

[0024] On the other hand, it also includes:

[0025] The second configuration module is used to configure the time period between the start time point and the third time point as the target delay.

[0026] The second control module is used to turn off blood oxygen monitoring within the target time delay and restore blood oxygen monitoring after the target time delay when blood pressure measurement of the target is performed again.

[0027] On the other hand, it also includes:

[0028] The upload module is used to upload blood oxygen and blood pressure change information to the cloud platform.

[0029] To address the aforementioned technical problems, this application also provides a method for detecting blood oxygen and non-invasive blood pressure, comprising:

[0030] While continuously monitoring the blood oxygen information of the target, perform a blood pressure measurement on the target.

[0031] Collect information on changes in blood oxygenation and blood pressure; whereby the information on changes in blood oxygenation is the information on the continuous change of blood oxygenation parameters over time during the period when blood pressure measurement interferes with blood oxygenation monitoring; and the information on changes in blood pressure is the information on the continuous change of cuff pressure values ​​over time during blood pressure measurement.

[0032] Based on blood oxygen and blood pressure changes, determine whether blood oxygen monitoring and blood pressure measurement of the target are performed on the same limb.

[0033] If so, output a prompt message representing the measurement of the same limb, and mark the blood oxygen change information and blood pressure change information as the measurement data of the same limb.

[0034] To address the aforementioned technical problems, this application also provides a blood oxygen and non-invasive blood pressure detection device, comprising:

[0035] Memory, used to store computer programs;

[0036] A processor is used to execute computer programs to implement the steps of the above-described methods for detecting blood oxygen and non-invasive blood pressure.

[0037] To address the aforementioned technical problems, this application also provides a computer-readable storage medium storing a computer program, which, when executed by a processor, implements the steps of the aforementioned blood oxygen and non-invasive blood pressure detection method.

[0038] The blood oxygen and non-invasive blood pressure detection device provided in this application consists of a monitoring and measurement module, an information acquisition module, a limb-based judgment module, and an alarm marking module. When continuously monitoring the blood oxygen information of the target, the monitoring and measurement module performs blood pressure measurement on the target. The information acquisition module collects blood oxygen change information representing the continuous change of blood oxygen parameters over time during the period when blood pressure measurement interferes with blood oxygen monitoring, and also collects blood pressure change information representing the continuous change of cuff pressure over time during blood pressure measurement. Since blood oxygen readings during limb-based blood pressure measurement can be distorted due to blood flow interference, the limb-based judgment module can directly use blood oxygen and blood pressure change information as the basis for limb-based detection to determine whether the blood oxygen monitoring and blood pressure measurement of the target are performed on the same limb. If the measurement is confirmed to be on the same limb, the alarm marking module outputs a prompt indicating limb-based measurement and marks the blood oxygen and blood pressure change information as limb-based measurement data, thereby avoiding misjudgment of the target's true physiological state by medical personnel and improving the accuracy of blood oxygen measurement.

[0039] In addition, this application also provides a method, device and medium for detecting blood oxygen and non-invasive blood pressure, with the same effect as above. Attached Figure Description

[0040] To more clearly illustrate the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0041] Figure 1 A schematic diagram of a blood oxygen and non-invasive blood pressure detection device provided in an embodiment of this application;

[0042] Figure 2 A time-varying graph of cuff pressure and infusion index provided for embodiments of this application;

[0043] Figure 3 A flowchart of a method for detecting blood oxygen and non-invasive blood pressure provided in this application embodiment;

[0044] Figure 4 This is a structural diagram of a blood oxygen and non-invasive blood pressure detection device provided in an embodiment of this application. Detailed Implementation

[0045] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this application.

[0046] The core of this application is to provide a blood oxygen and non-invasive blood pressure detection device, method, equipment and medium to solve the problem that current ipsilateral blood pressure and blood oxygen monitoring interfere with each other, resulting in distorted readings and false alarms, causing difficulties in clinical judgment.

[0047] To enable those skilled in the art to better understand the present application, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0048] For non-invasive blood pressure measurement requiring a cuff, the principles generally fall into three categories: auscultatory method, oscillometric method, and a combination of auscultatory and oscillometric methods. Regardless of the method, the principle involves attaching a cuff to a limb (e.g., left arm, right arm, left leg, right leg) and inflating and deflating it. The difference lies in the method: the auscultatory method calculates blood pressure based on the intensity of sound changes during inflation and deflation, while the oscillometric method calculates blood pressure based on the amplitude of the pulse wave. During inflation, the cuff gradually increases in pressure, and during deflation, it gradually decreases in pressure. Taking upper arm blood pressure measurement as an example, when the pressure exceeds the systolic pressure of the brachial artery, the artery is completely compressed, blood flow is blocked, and the pulse cannot be heard using the auscultatory method, nor can the pulse signal be detected using the oscillometric method.

[0049] From a hemodynamic perspective, when the cuff is inflated, the cuff applies pressure, gradually restricting blood flow until the cuff pressure exceeds the systolic pressure, at which point the artery is completely compressed, and blood flow is interrupted. When the cuff is deflated, the cuff depressurizes, and blood flow gradually resumes until the cuff pressure reaches zero, at which point arterial blood flow is unobstructed. Therefore, regardless of whether the method is auscultation, oscillometric analysis, or a combination of these methods, as long as cuff pressure is applied, it will restrict blood flow.

[0050] Compared to the invasive method of blood gas analyzer, pulse oximeter is a non-invasive method for measuring blood oxygen saturation. The principle of a pulse oximeter is based on the difference in the absorption capacity of oxyhemoglobin and deoxyhemoglobin for specific colors of light. It calculates blood oxygen saturation by measuring the changes in light absorption caused by arterial blood pulsation. The measurement process relies on the changes in light absorption caused by the increase and decrease in arterial blood volume during pulsation. The non-pulsatile signal (DC signal) is large and stable, generated by background noise from the skin, muscles, bones, and other non-pulsatile blood. The pulsatile signal (AC signal) is smaller and generated by the volume fluctuations of pulsatile blood.

[0051] Taking the right hand as an example when both non-invasive blood pressure and pulse oximetry are measured, the non-invasive blood pressure cuff is strapped to the upper right arm, and the pulse oximeter is clipped to the fingers of the right hand. When no blood pressure is being measured, the blood flow in the right hand's fingers is normal, and blood oxygen can be measured normally, as the cuff pressure increases. When blood pressure measurement begins, as the cuff pressure increases, the blood flow to the fingertips is more restricted, meaning the pulsation of arterial blood in the fingers weakens. When the cuff pressure exceeds the systolic blood pressure of the target being measured, the pulsation of arterial blood in the fingers disappears. Therefore, most patient monitors on the market with non-invasive blood pressure and pulse oximetry functions include warnings in their instruction manuals. For example, placing the sensor on the same limb as the blood pressure cuff, arterial catheter, or intravascular wiring, or arterial blockage near the sensor can lead to incorrect readings and alarms, or placing the cuff or other measuring components on the same side of the limb as the pulse oximetry probe (SpO2) sensor during blood pressure measurement may affect the accuracy of SpO2 measurement.

[0052] Therefore, if a doctor mistakenly places the blood oxygen saturation cuff and non-invasive blood pressure cuff on the same limb being measured, but the device does not alert the doctor, the blood oxygen saturation value during the blood pressure measurement will actually be affected by cuff pressure, rather than the value of the patient in a resting state. Immediately after the blood pressure measurement, it takes time for the arterial blood pulse at the fingertip to return to the measured blood oxygen saturation value, and also time for the value to stabilize. Therefore, not only is the value unreliable during the measurement, but it is also reliable for a period after the measurement, which may lead the doctor to misjudge the patient's physiological state. Conversely, if the doctor actively places the blood oxygen saturation cuff and non-invasive blood pressure cuff on the same limb, for example, due to clinical limitations (e.g., three limbs fractured, three limbs missing, large-area diabetic foot, etc.), resulting in only one limb being suitable for measurement, or when conducting clinical research on the difference in blood pressure between the left and right arms while simultaneously measuring blood oxygen saturation in the arm, the blood oxygen saturation value will fluctuate significantly during and immediately after the measurement, triggering a blood oxygen saturation alarm, which is unnecessary for the doctor. However, simply disabling all blood oxygenation alarms would fail to monitor the patient's blood oxygenation status in the absence of blood pressure measurement interference. These issues become more pronounced in critically ill patients who typically undergo timed non-invasive blood pressure monitoring along with continuous blood oxygenation monitoring.

[0053] In summary, current ipsilateral blood pressure and blood oxygen monitoring methods can interfere with each other, leading to distorted readings and false alarms, causing difficulties in clinical judgment. To address these issues, this application provides a blood oxygen and non-invasive blood pressure monitoring device.

[0054] It should be noted that the device provided in this application is based on existing blood oxygen and blood pressure measuring instruments. For example, a blood oxygen and blood pressure measuring instrument includes at least a photoelectric sensor for measuring blood oxygen saturation, a blood oxygen saturation processing unit, a non-invasive blood pressure cuff, a non-invasive blood pressure pressure sensor, a non-invasive blood pressure processing unit, a power supply, a display, and a processor. It is understood that the blood oxygen and non-invasive blood pressure detection device is located in the processor; the power supply powers the entire system; the blood oxygen saturation processing unit acquires real-time data of the target detected by the photoelectric sensor and calculates blood oxygen-related values, including but not limited to blood oxygen saturation SpO2, perfusion index (Pi), and pulse rate (PR); the non-invasive blood pressure processing unit is used to start or stop measuring non-invasive blood pressure, while simultaneously acquiring real-time cuff pressure data from the non-invasive blood pressure pressure sensor. The overall process of non-invasive blood pressure measurement is: start, pressurization, depressurization, and termination. The pressurization and depressurization processes may be repeated multiple times. The blood oxygen and non-invasive blood pressure detection device provided in this application is described in detail below:

[0055] Figure 1This is a schematic diagram of a blood oxygen and non-invasive blood pressure detection device provided in an embodiment of this application. Figure 1 As shown, the device includes:

[0056] The monitoring and measurement module 10 is used to perform blood pressure measurement on the target while continuously monitoring the blood oxygen information of the target.

[0057] The information acquisition module 11 is used to acquire blood oxygen change information and blood pressure change information; wherein, the blood oxygen change information is the information on the continuous change of blood oxygen parameters over time during the period when blood pressure measurement interferes with blood oxygen monitoring; the blood pressure change information is the information on the continuous change of cuff pressure value over time during blood pressure measurement.

[0058] The same limb judgment module 12 is used to determine whether the blood oxygen monitoring and blood pressure measurement of the target are located on the same limb based on the blood oxygen change information and blood pressure change information; if so, the alarm flag module is triggered.

[0059] The alarm marking module 13 is used to output prompt information representing the same limb measurement and to mark the blood oxygen change 13 information and blood pressure change information as the same limb measurement data.

[0060] As discussed above, since critically ill patients typically undergo timed non-invasive blood pressure measurement with continuous blood oxygen saturation monitoring, and blood oxygen saturation readings can be distorted due to blood flow interference during limb blood pressure measurements, this protocol requires continuous and normal monitoring of the patient's blood oxygen saturation. Otherwise, it cannot be guaranteed that the distortion in blood oxygen saturation readings is caused by limb blood pressure measurement, and limb-based testing would be meaningless in such cases.

[0061] Therefore, in order to perform simultaneous limb-based blood oxygen and blood pressure measurements, the monitoring and measurement module 10 must first perform blood pressure measurement on the target while continuously monitoring its blood oxygen information. In this embodiment, the specific type of blood oxygen information monitored is not limited; for example, it can be blood oxygen saturation (SpO2), pulse rate (PR), perfusion index (Pi), perfusion variability index (PVi), total hemoglobin (SpHb), spectral methemoglobin saturation (SpMet), spectral carbon monoxide hemoglobin (SpCO), respiratory rate by acoustics (RRa), and total oxygen content (SpOC).

[0062] Meanwhile, non-invasive blood pressure measurement based on cuffs is divided into ascending measurement (i.e., measurement is completed during cuff inflation) and descending measurement (measurement is completed during decompression after the target pressure value is reached). Descending measurement is further divided into linear deflation and staged deflation. It should be noted that this method is applicable to all non-invasive blood pressure measurements based on arterial compression. Furthermore, after the blood pressure measurement is completed, the target systolic blood pressure is directly calculated based on the cuff pressure. This embodiment does not impose restrictions on the systolic blood pressure calculation process.

[0063] Furthermore, after initiating blood pressure measurement on the target, the information acquisition module 11 collects blood oxygen change information and blood pressure change information. It should be noted that the blood oxygen change information refers to the information on the continuous change of blood oxygen parameters over time during the period when blood pressure measurement interferes with blood oxygen monitoring, such as the information on the change of perfusion index over time during the interference period; the blood pressure change information refers to the information on the continuous change of cuff pressure value over time during blood pressure measurement.

[0064] Subsequently, the same-limb determination module 12 determines whether the blood oxygen monitoring and blood pressure measurement of the target are located on the same limb based on the blood oxygen change information and blood pressure change information. In this embodiment, there are no restrictions on the specific method for determining whether the measurements are on the same limb based on the blood oxygen change information and blood pressure change information. For example, it can be based on the presence or absence of blood oxygen parameters during blood pressure measurement, or it can be based on the changing trend of blood oxygen parameters during blood pressure measurement, depending on the specific implementation. When it is confirmed that the blood oxygen monitoring and blood pressure measurement of the target are on different limbs, the current same-limb detection process ends.

[0065] When it is confirmed that the blood oxygen monitoring and blood pressure measurement of the target are located on the same limb, the same limb judgment module 12 triggers the alarm marking module 13. The alarm marking module 13 outputs prompt information indicating the same limb measurement and marks the blood oxygen change information and blood pressure change information collected during this measurement as same limb measurement data so that medical staff can selectively adopt them and avoid misjudgment.

[0066] In this embodiment, the blood oxygen and non-invasive blood pressure detection device consists of a monitoring and measurement module, an information acquisition module, a limb-based judgment module, and an alarm marking module. When continuously monitoring the blood oxygen information of the target, the monitoring and measurement module performs blood pressure measurement on the target. The information acquisition module collects blood oxygen change information representing the continuous change of blood oxygen parameters over time during the period when blood pressure measurement interferes with blood oxygen monitoring, and collects blood pressure change information representing the continuous change of cuff pressure value over time during blood pressure measurement. Since blood oxygen readings can be distorted due to blood flow interference during limb-based blood pressure measurement, the limb-based judgment module can directly use blood oxygen change information and blood pressure change information as the basis for limb-based detection to determine whether blood oxygen monitoring and blood pressure measurement of the target are located on the same limb. If the measurement is confirmed to be on the same limb, the alarm marking module outputs a prompt message representing limb-based measurement and marks the blood oxygen change information and blood pressure change information as limb-based measurement data, thereby avoiding misjudgment of the true physiological state of the target by medical staff and improving the accuracy of blood oxygen measurement.

[0067] To determine whether blood oxygen monitoring and blood pressure measurement are performed on the same limb, based on the above embodiments, in some embodiments, the same limb determination module 12 includes:

[0068] The time point determination module 101 is used to determine multiple blood oxygen change time points based on blood oxygen change information, and to determine multiple blood pressure change time points based on blood pressure change information.

[0069] The first judgment submodule 102 is used to determine whether the blood oxygen monitoring and blood pressure measurement of the target are located on the same limb based on the time points of blood oxygen change and blood pressure change.

[0070] Understandably, when non-invasive blood pressure and blood oxygenation are simultaneously monitored on the same side of the limb, changes in blood oxygenation parameters are closely related to changes in cuff pressure, with several key corresponding time points: Blood pressure measurement initiation point: The cuff begins to inflate; at this time, the blood oxygenation signal begins to be interfered with, and the amplitude of the pulsation signal gradually weakens. Blood oxygenation signal disappearance point: The cuff pressure exceeds the systolic pressure. The artery is completely compressed, and the blood oxygenation probe cannot detect the pulse, causing many values ​​to disappear or display as invalid / extremely low values. Blood oxygenation signal reappearance point: During cuff deflation, the pressure drops below the systolic pressure; arterial blood flow begins to partially recover, the blood oxygenation probe detects the pulsation signal again, and the values ​​begin to reappear and fluctuate dramatically. Blood pressure measurement completion point: The cuff pressure is rapidly released to zero, and the blood pressure readings (systolic pressure, diastolic pressure, mean pressure) are determined; at this time, limb blood flow begins to fully recover, but the blood oxygenation signal is still in an unstable recovery period, and the values ​​may fluctuate. Blood oxygenation signal stabilization point: Several tens of seconds after the blood pressure measurement ends. Blood flow to the limbs fully returned to normal, and blood oxygen parameters gradually recovered and stabilized at the true baseline level before measurement.

[0071] Since the aforementioned blood oxygenation change time points all originate from the "interference-disappearance-recovery-stabilization" cycle of the blood oxygenation signal, perfectly corresponding to the "rise-hypersystolic pressure-fall-zero" process of cuff pressure, the time point determination module 101 can select one or more time points from the above time points as criteria. The first judgment submodule 102 then determines whether the blood oxygenation monitoring and blood pressure measurement of the target are located on the same limb. This method has higher detection accuracy compared to using blood pressure or blood pressure parameters as criteria. In this embodiment, there are no restrictions on the specific blood oxygenation change time points and blood pressure change time points selected; it depends on the specific implementation situation.

[0072] Based on the above embodiments, in some embodiments, the time point determination module 101 includes:

[0073] The first time point determination submodule 111 is used to determine the start and end time points of blood pressure measurement based on blood pressure change information;

[0074] The second time point determination submodule 112 is used to determine the first time point when the blood oxygen parameter first reaches zero, the second time point when the blood oxygen parameter ends at zero, and the third time point when the blood oxygen parameter recovers to the value before blood pressure measurement based on the blood oxygen change information.

[0075] Among them, blood oxygenation parameter is perfusion index or pulse rate.

[0076] To determine the time points of blood oxygen and blood pressure changes, the time point determination module 101 in this embodiment specifically includes a first time point determination submodule 111, used to determine the start and end time points of blood pressure measurement based on blood pressure change information, and a second time point determination submodule 112, used to determine the first time point when the blood oxygen parameter first reaches zero, the second time point when the blood oxygen parameter ends at zero, and the third time point when the blood oxygen parameter recovers to the value before blood pressure measurement, that is, all five key time points mentioned above are used together as the criteria for limb detection. It should be noted that when determining the time points of blood oxygen changes, the blood oxygen parameters used are the perfusion index or pulse rate, because the perfusion index and pulse rate are both calculated based on pulsation. Determining the time points of blood oxygen changes based on changes in the perfusion index or pulse rate has the advantage of being more direct and reliable.

[0077] Figure 2 This is a time-varying graph showing the relationship between cuff pressure and perfusion index provided in an embodiment of this application. Taking step-down deflation as an example, the relationship between the time, pressure value, and perfusion index collected during non-invasive blood pressure and blood oxygenation measurements is as follows. Figure 2 As shown, the blue Y-axis on the left is the pressure axis, and the blue curve is the pressure curve; the blue Y-axis on the right is the perfusion index axis, and the orange curve is the perfusion index curve. Figure 2 There are five key time points: NIBPT1, the starting point for noninvasive blood pressure measurement, which is also when the perfusion index (Pi) begins to decrease; PiT1, the first time point when the perfusion index first reaches zero, at which point the cuff pressure exceeds the subject's systolic blood pressure, thus completely blocking arterial blood flow and resulting in a perfusion index of 0; PiT2, the second time point when the perfusion index ends at zero, at which point the cuff pressure is lower than the subject's systolic blood pressure, thus arterial blood flow begins to recover, and the perfusion index begins to gradually recover; NIBPT2, the ending point for noninvasive blood pressure measurement, at which point although the cuff has no pressure, because the body's blood vessels require a certain amount of time to reperfuse, the perfusion index will be lower than the perfusion value before the start of noninvasive blood pressure measurement for a period of time. Simultaneously, due to reactive congestion, the perfusion index will be higher than the perfusion value before the start of noninvasive blood pressure measurement for a short period of time; and PiT3, the third time point when the perfusion index recovers to the pre-measurement value, at which point the perfusion index begins to stabilize.

[0078] Based on the above embodiments, in some embodiments, the first determination submodule 102 includes:

[0079] The preset condition judgment submodule 121 is used to determine whether the preset conditions are met based on the blood oxygen change information and blood pressure change information; if yes, it confirms that the blood oxygen monitoring and blood pressure measurement of the target are located on the same limb; if no, it confirms that the blood oxygen monitoring and blood pressure measurement of the target are located on a different limb.

[0080] To determine whether blood oxygen monitoring and blood pressure measurement are performed on the same limb, the first judgment submodule 102 in this embodiment specifically includes a preset condition judgment submodule 121, used to determine whether preset conditions are met based on blood oxygen change information and blood pressure change information. It is worth noting that the preset conditions specifically are: blood oxygen parameters exist before the start time point NIBPT1; the blood oxygen parameters decrease between the start time point NIBPT1 and the first time point PiT1; the cuff pressure value is not less than the systolic blood pressure of the measured target between the first time point PiT1 and the second time point PiT2; and the blood oxygen parameters increase between the second time point PiT2 and the end time point NIBPT2.

[0081] When the above preset conditions are met, it is confirmed that the blood oxygen monitoring and blood pressure measurement of the target are located on the same limb; otherwise, it is confirmed that the blood oxygen monitoring and blood pressure measurement of the target are located on different limbs. In this way, accurate determination of whether the blood oxygen monitoring and blood pressure measurement are located on the same limb is achieved.

[0082] To support subsequent limb-based measurements and prevent false blood oxygenation reports, in some embodiments, in addition to the above embodiments, the device further includes:

[0083] The first configuration module 131 is used to configure the time period between the start time point and the third time point as the target delay.

[0084] The first control module 132 is used to disable all blood oxygen-related alarm prompts within the target time delay when the blood pressure measurement of the target is performed again, and to restore all blood oxygen-related alarm prompts after the target time delay.

[0085] The marking module 133 is used to mark all blood oxygen information within the target time delay as measurements of the same limb.

[0086] Specifically, the device also includes a first configuration module 131, which, after confirming that the current blood oxygen and blood pressure measurements are limb-based measurements, further configures the time period between the starting time point NIBPT1 and the third time point PiT3 as a target time delay T. It can be understood that the target time delay T is the time period from when blood oxygen monitoring begins to be disturbed during limb-based measurements until it fully recovers to its initial value.

[0087] Furthermore, the device also includes a first control module 132, used to disable all blood oxygenation-related alarm prompts within a target time delay T when blood pressure measurement (same limb blood oxygen monitoring and blood pressure measurement) is performed again on the target, and to restore all blood oxygenation-related alarm prompts after the target time delay, thereby avoiding false alarms during the same limb measurement process, and to restore all normal alarms after the same limb measurement ends. Simultaneously, it also includes a marking module 133, used to mark all blood oxygen information within the target time delay T as same limb measurement, for selective adoption by medical personnel to avoid misjudgment. This ensures subsequent normal same limb measurements of the target and prevents false blood oxygen alarms.

[0088] To avoid abnormal blood oxygenation parameters in limb measurements interfering with medical staff's judgment, in some embodiments, based on the above embodiments, the device further includes:

[0089] The second configuration module 134 is used to configure the time period between the start time point and the third time point as the target delay.

[0090] The second control module 135 is used to turn off blood oxygen monitoring within the target time delay and restore blood oxygen monitoring after the target time delay when blood pressure measurement of the target is performed again.

[0091] Specifically, the device also includes a second configuration module 134, which, after confirming that the current blood oxygen and blood pressure measurements are limb-based measurements, further configures the time period between the starting time point NIBPT1 and the third time point PiT3 as a target delay T. It can be understood that the target delay T is the time period from when blood oxygen monitoring begins to be disturbed during limb-based measurements until it fully recovers to its initial value. It also includes a second control module 135, which, when blood pressure measurement of the target is performed again (limb-based blood oxygen monitoring and blood pressure measurement), shuts down blood oxygen monitoring within the target delay T and resumes blood oxygen monitoring after the target delay T, thereby avoiding interference from abnormal blood oxygen parameters during limb-based measurements on the judgment of medical personnel.

[0092] Furthermore, to better monitor and understand the changes in blood oxygen and blood pressure parameters of the target, in some embodiments, the device also includes an upload module for uploading blood oxygen and blood pressure change information from each measurement of the same limb to a cloud platform. Unified management of blood oxygen and blood pressure change information through a cloud platform facilitates the construction of a dynamic, continuous physiological trend baseline for the target, which is of crucial value for chronic disease management, early warning of potential risks, evaluation of treatment effectiveness, and the realization of personalized precision medicine.

[0093] In the above embodiments, the blood oxygen and non-invasive blood pressure detection device has been described in detail. This application also provides embodiments corresponding to the blood oxygen and non-invasive blood pressure detection method.

[0094] Figure 3This is a flowchart illustrating a method for detecting blood oxygen and non-invasive blood pressure, provided as an embodiment of this application. Figure 3 As shown, the method includes:

[0095] S10: When continuously monitoring the blood oxygen information of the target, perform a blood pressure measurement on the target.

[0096] S11: Collect information on changes in blood oxygenation and blood pressure.

[0097] Among them, the blood oxygen change information is the information on the continuous change of blood oxygen parameters over time during the period when blood pressure measurement interferes with blood oxygen monitoring; the blood pressure change information is the information on the continuous change of cuff pressure value over time during blood pressure measurement.

[0098] S12: Based on the blood oxygen change information and blood pressure change information, determine whether the blood oxygen monitoring and blood pressure measurement of the target are located on the same limb; if so, trigger step S13.

[0099] S13: Output prompts representing the same limb measurement and mark blood oxygenation and blood pressure changes as same limb measurement data.

[0100] Since the embodiments of the method section correspond to the embodiments of the apparatus section, please refer to the description of the embodiments of the apparatus section for the embodiments of the method section, and they will not be repeated here.

[0101] Figure 4 This is a structural diagram of a blood oxygen and non-invasive blood pressure detection device provided in an embodiment of this application. Figure 4 As shown, the blood oxygen and non-invasive blood pressure monitoring equipment includes:

[0102] Memory 20 is used to store computer programs;

[0103] The processor 21 is used to execute a computer program to implement the steps of the blood oxygen and non-invasive blood pressure detection method mentioned in the above embodiments.

[0104] The blood oxygen and non-invasive blood pressure monitoring devices provided in this embodiment may include, but are not limited to, smartphones, tablets, laptops, or desktop computers.

[0105] The processor 21 may include one or more processing cores, such as a quad-core processor or an octa-core processor. The processor 21 may be implemented using at least one of the following hardware forms: Digital Signal Processor (DSP), Field-Programmable Gate Array (FPGA), or Programmable Logic Array (PLA). The processor 21 may also include a main processor and a coprocessor. The main processor, also known as the Central Processing Unit (CPU), is used to process data in the wake-up state; the coprocessor is a low-power processor used to process data in the standby state. In some embodiments, the processor 21 may integrate a Graphics Processing Unit (GPU), which is responsible for rendering and drawing the content to be displayed on the screen. In some embodiments, the processor 21 may also include an Artificial Intelligence (AI) processor, which handles computational operations related to machine learning.

[0106] The memory 20 may include one or more computer-readable storage media, which may be non-transitory. The memory 20 may also include high-speed random access memory and non-volatile memory, such as one or more disk storage devices or flash memory devices. In this embodiment, the memory 20 is used to store at least the following computer program 201, which, after being loaded and executed by the processor 21, is capable of implementing the relevant steps of the blood oxygen and non-invasive blood pressure detection method disclosed in any of the foregoing embodiments. In addition, the resources stored in the memory 20 may also include an operating system 202 and data 203, and the storage method may be temporary or permanent storage. The operating system 202 may include Windows, Unix, Linux, etc. The data 203 may include, but is not limited to, the data involved in the blood oxygen and non-invasive blood pressure detection method.

[0107] In some embodiments, the blood oxygen and non-invasive blood pressure monitoring device may further include a display screen 22, an input / output interface 23, a communication interface 24, a power supply 25, and a communication bus 26.

[0108] Those skilled in the art will understand that Figure 4 The structure shown does not constitute a limitation on blood oxygen and non-invasive blood pressure monitoring devices and may include more or fewer components than shown.

[0109] Finally, this application also provides an embodiment corresponding to a computer-readable storage medium. The computer-readable storage medium stores a computer program, which, when executed by a processor, implements the steps described in the above method embodiments.

[0110] It is understood that if the methods in the above embodiments are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and executes all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0111] The above provides a detailed description of a blood oxygen and non-invasive blood pressure detection device, method, equipment, and medium provided in this application. The various embodiments in the specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the devices disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the descriptions are relatively simple; relevant parts can be referred to in the method section. It should be noted that those skilled in the art can make several improvements and modifications to this application without departing from the principles of this application, and these improvements and modifications also fall within the protection scope of this application.

[0112] It should also be noted that, in this specification, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A blood oxygen and non-invasive blood pressure detection device, characterized in that, include: The monitoring and measurement module is used to measure the blood pressure of the target while continuously monitoring the target's blood oxygen information; The information acquisition module is used to collect blood oxygen change information and blood pressure change information; wherein, the blood oxygen change information is the information on the continuous change of blood oxygen parameters over time during the period when blood pressure measurement interferes with blood oxygen monitoring; the blood pressure change information is the information on the continuous change of cuff pressure value over time during blood pressure measurement. The same limb determination module is used to determine whether the blood oxygen monitoring and blood pressure measurement of the target are located on the same limb based on the blood oxygen change information and the blood pressure change information; if so, the alarm flag module is triggered. The alarm marking module is used to output prompt information representing the same limb measurement, and to mark the blood oxygen change information and the blood pressure change information as same limb measurement data.

2. The blood oxygen and non-invasive blood pressure detection device according to claim 1, characterized in that, The same limb determination module includes: The time point determination module is used to determine multiple blood oxygen change time points based on the blood oxygen change information, and to determine multiple blood pressure change time points based on the blood pressure change information; The first judgment submodule is used to determine whether the blood oxygen monitoring and blood pressure measurement of the target are located on the same limb based on the blood oxygen change time points and the blood pressure change time points.

3. The blood oxygen and non-invasive blood pressure detection device according to claim 2, characterized in that, The time point determination module includes: The first time point determination submodule is used to determine the start and end time points of blood pressure measurement based on the blood pressure change information. The second time point determination submodule is used to determine, based on the blood oxygen change information, the first time point when the blood oxygen parameter first reaches zero, the second time point when the blood oxygen parameter ends at zero, and the third time point when the blood oxygen parameter recovers to the value before blood pressure measurement. The blood oxygenation parameter is the perfusion index or pulse rate.

4. The blood oxygen and non-invasive blood pressure detection device according to claim 3, characterized in that, The first judgment submodule includes: A preset condition judgment submodule is used to determine whether preset conditions are met based on the blood oxygen change information and the blood pressure change information. The preset conditions are: the blood oxygen parameter exists before the start time point, the blood oxygen parameter decreases between the start time point and the first time point, the cuff pressure value is not less than the systolic blood pressure of the target between the first time point and the second time point, and the blood oxygen parameter increases between the second time point and the end time point. If yes, it is confirmed that the blood oxygen monitoring and blood pressure measurement of the target are performed on the same limb; if no, it is confirmed that the blood oxygen monitoring and blood pressure measurement of the target are performed on different limbs.

5. The blood oxygen and non-invasive blood pressure detection device according to claim 3, characterized in that, Also includes: The first configuration module is used to configure the time period between the start time point and the third time point as the target delay. The first control module is used to disable all blood oxygen-related alarm prompts within the target time delay when the blood pressure measurement of the target is performed again, and to restore all blood oxygen-related alarm prompts after the target time delay. The marking module is used to mark all blood oxygen information within the target time delay as measured by the same limb.

6. The blood oxygen and non-invasive blood pressure detection device according to claim 3, characterized in that, Also includes: The second configuration module is used to configure the time period between the start time point and the third time point as the target delay. The second control module is used to turn off blood oxygen monitoring during the target time delay when blood pressure measurement of the target is performed again, and to restore blood oxygen monitoring after the target time delay.

7. The blood oxygen and non-invasive blood pressure detection device according to any one of claims 1 to 6, characterized in that, Also includes: The upload module is used to upload the blood oxygen change information and the blood pressure change information to the cloud platform.

8. A method for detecting blood oxygen and non-invasive blood pressure, characterized in that, include: While continuously monitoring the blood oxygen information of the target, perform a blood pressure measurement on the target. Collect blood oxygen change information and blood pressure change information; wherein, the blood oxygen change information is the information on the continuous change of blood oxygen parameters over time during the period when blood pressure measurement interferes with blood oxygen monitoring; the blood pressure change information is the information on the continuous change of cuff pressure value over time during blood pressure measurement. Based on the blood oxygen change information and the blood pressure change information, determine whether the blood oxygen monitoring and blood pressure measurement of the target are located on the same limb; If so, output a prompt message indicating the measurement of the same limb, and mark the blood oxygen change information and the blood pressure change information as the measurement data of the same limb.

9. A blood oxygen and non-invasive blood pressure detection device, characterized in that, include: Memory, used to store computer programs; A processor, configured to implement the steps of the blood oxygen and non-invasive blood pressure detection method as described in claim 8 when executing the computer program.

10. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program that, when executed by a processor, implements the steps of the blood oxygen and non-invasive blood pressure detection method as described in claim 8.

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