The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 07, 2026
Filed:
Oct. 31, 2022
Hong Kong Centre for Cerebro-cardiovascular Health Engineering Limited, Hong Kong, CN;
Yuanting Zhang, Hong Kong, CN;
Ting Xiang, Hong Kong, CN;
Zijun Liu, Hong Kong, CN;
Nan Ji, Hong Kong, CN;
Abstract
The present invention provides a method and a device for calibrating a blood pressure estimation model for determining tonoarteriogram (TAG) signals, which relates to a cross field between biomedicine and scientific engineering. The method comprises: after applying a first pressure to a first preset location, determining individual pulse transit time (PTT) of a respective pulse wave at a preset region during a preset movement process in a plurality of preset time periods; for each of the preset time period, acquiring a first pressure at the respective first moment of time and a first height difference of the first preset location relative to a heart location; acquiring a second pressure according to the first pressure at all of the first moment of time; determining a sample blood pressure information within the preset time period according to the second pressure and the first height difference to calibrate the blood pressure estimation model, and obtaining a continuous beat-to-beat blood pressure information according to the blood pressure estimation model, obtaining TAG signals according to the beat-to-beat blood pressure information and a target PPG signal. The present invention calibrates the blood pressure estimation model without the need of a cuff-type blood pressure measurement device, and a high-precision TAG signals can be obtained.