Self-calibration continuous blood pressure measuring device and method
A technology of blood pressure measurement and self-calibration, which is applied in diagnostic recording/measurement, medical science, diagnosis, etc. It can solve the problems of lack of regular calibration and compensation, easy drift, and insufficient precision and effectiveness of initial calibration, so as to suppress data drift, Realize the effect of data transmission and reliable data transmission
Pending Publication Date: 2021-03-09
中科心感(南京)医疗电子科技有限公司 +1
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Problems solved by technology
[0003] Current cuff blood pressure measurement methods can only provide transient blood pressure data and cannot capture continuous changes in human blood pressure
The much-concerned continuous blood pressure estimation method based on pulse wave arrival time (PAT) or pulse wave transit time (PTT) can track the continuous change of blood pressure, but the initial calibration of this method is not fine and effective, and the change of user's body position will cause systemic blood flow Kinetic parameters also change accordingly, and drift is prone to occur during long-term measurement. This type of method lacks regular calibration and compensation
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[0029] The technical solution of the present invention will be explained more clearly and completely through the description of preferred embodiments of the present invention in conjunction with the accompanying drawings.
[0030] like figure 1 As shown, a self-calibrating continuous blood pressure measurement device according to the preferred embodiment of the present invention includes a sensing unit 102, an airbag cuff 105, a microprocessor 103, a blood pressure calibration module 106, a wireless communication module 104, a display module 107 and a power supply module 101.
[0031] Wherein, the sensing unit 102 includes an electrocardiographic electrode 1020 and a pulse wave probe 1021 . The airbag cuff 105 and the blood pressure calibration module 106 are connected by air. The sensing unit 102, the microprocessor 103, the blood pressure calibration module 106, the wireless communication module 104, and the display module 107 are electrically connected in sequence. The p...
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The invention discloses a self-calibration continuous blood pressure measuring device and method. The method comprises the steps that S101, single-channel electrocardiosignals are collected; S102, power frequency interference in the single-channel electrocardiosignals is removed; S103, breathing and body movement interference in the single-channel electrocardiosignals is removed; S104, an electrocardiogram waveform R wave is obtained; S105, photoplethysmography pulse wave signals are synchronously collected; S106, power frequency interference in the pulse wave signals is removed; S107, breathing and body movement interference in the pulse wave signals is removed; S108, Peak feature points and Onset feature points are searched for; S109, the real-time heart rate HR is calculated; S1010, thepulse wave arrival time PAT is calculated; S1011, the pulse intensity ratio PIR is calculated; S1012, periodic calibration is carried out; S1013, blood pressure is measured; and S1014, data are transmitted back. According to the method, blood pressure detection automatic calibration and compensation can be achieved, data drift is restrained, and user blood pressure change information is tracked.
Description
technical field [0001] The invention relates to the field of blood pressure measurement, in particular to a self-calibrating continuous blood pressure measurement device and method. Background technique [0002] Cardiovascular and cerebrovascular diseases have very high morbidity and mortality, and are extremely harmful to humans. Blood pressure is an important indicator of human health, and hypertension is generally considered to be the main factor leading to cardiovascular and cerebrovascular diseases. [0003] Current cuff blood pressure measurement methods can only provide transient blood pressure data and cannot capture continuous changes in human blood pressure. The much-concerned continuous blood pressure estimation method based on pulse wave arrival time (PAT) or pulse wave transit time (PTT) can track the continuous change of blood pressure, but the initial calibration of this method is not fine and effective, and the change of user's body position will cause syste...
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Patent Timeline
Login to View More IPC IPC(8): A61B5/0205A61B5/318A61B5/265A61B5/00A61B5/346A61B5/353A61B5/366A61B5/355
CPCA61B5/0205A61B5/02125A61B5/0225A61B5/02416A61B5/02141A61B5/7203A61B5/725A61B5/7207A61B5/7235
Inventor 方震夏攀赵荣建何光强陈贤祥
Owner 中科心感(南京)医疗电子科技有限公司