Blood pressure estimation apparatus, blood pressure estimation method, and non-transitory computer-readable recording medium
US10702168B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 27, 2017 |
| Grant date | Jul 7, 2020 |
| Priority date | — |
| Expiry date | Nov 10, 2038 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/7275
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A blood pressure estimation apparatus includes: a pulse wave measurement unit measuring a user's pulse wave signal; an electrocardiogram signal measurement unit measuring a user's electrocardiogram signal; and a processing circuit estimating a user's blood pressure value by using the pulse wave and electrocardiogram signals, wherein the processing circuit (a) acquires a pulse wave signal feature by using the pulse wave signal, (b) acquires an electrocardiogram signal feature by using the electrocardiogram signal, (c) acquires a pulse wave propagation time by using the pulse wave and electrocardiogram signals, (d) selects a blood pressure group indicating a relationship between a pulse wave propagation time and blood pressure of the user by using the pulse wave signal feature, electrocardiogram signal feature, and pulse wave propagation time, and (e) estimates the blood pressure value by using the blood pressure group, pulse wave signal feature, electrocardiogram signal feature, and pulse wave propagation time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.