Hong Centre for Cerebro-cardiovascular Health Engineering Limited

Nan Ji

Yuanting Zhang

Ting Xiang

Zijun Liu

The present invention relates to method and apparatus for heart-level blood pressure estimation based on ensemble learning. The invention relates to the technical field of biomedical technology. The method comprises: acquiring radial arterial blood pressure related information and a hydrostatic pressure of the radial artery of a subject; performing blood pressure conversion based on the radial arterial blood pressure related information and the hydrostatic pressure of the radial artery to obtain at least two brachial arterial blood pressure values; inputting the at least two brachial arterial blood pressure values into a trained correction model to obtain a target brachial arterial blood pressure value. The present invention realizes the conversion from a peripheral blood pressure, such as a radial arterial blood pressure measured by a wearable device, to a heart-level blood pressure, i.e. a brachial arterial blood pressure for clinical use, and performs feature fusion and a feature conversion on the feature information of each brachial arterial blood pressure value, so that the determined target brachial arterial blood pressure value becomes more accurate, and improves the accuracy and stability of the blood pressure estimation.

Method and apparatus for heart-level blood pressure estimation based on ensemble learning

The present invention relates to a multi-modal sensor module, comprising an electrode base, an insulating film sheet, a functional layer and a protective film; the protective film is used for isolating external environment with a side away from the functional layer for use in contacting surface of biological tissues; the functional layer comprises a substrate and at least one sensor module provided in isolation in the substrate; a side of the electrode base away from the insulating film sheet is used for contacting surface of the biological tissues; the multi-modal sensor module is in a state of collecting electrocardiogram (ECG) signal, a side of the protective film away from the functional layer and a side of the electrode base away from the insulating film sheet are both for contacting surface of the biological tissues, so that the protective film, the biological tissues and the electrode base form an ECG signal collection path. The present invention integrates each sensor module in the same functional layer for measuring various physiological signals or estimating arterial blood pressure, and the use of the electrode base and the protective film coordinates collection of the ECG signal of the biological tissues. The design is clever and the structure of the multi-modal sensor module is simplified.

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Hong Kong, China

Nan Ji