Fetal health monitoring system and method for using the same
US12324654B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 2, 2021 |
| Grant date | Jun 10, 2025 |
| Priority date | — |
| Expiry date | Jul 22, 2042 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2503/02
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Wearable fetal health monitoring device for determining a heath condition of a fetus based on biosignals of an expecting mother and the fetus is provided. The device includes a MEMS accelerometer that converts an acoustic wave sensed in an abdominal region into an abdominal acoustic signal. The device also includes a pulse oximeter generates a maternal photoplethysmogram (mPPG) value from a pulse sensed in the abdominal region. The device further includes a microcontroller configured to: generate a maternal phonocardiogram (mPCG) value from the abdominal acoustic signal; calculate a first maternal heart rate (mHR) value from the mPCG value; calculate a second mHR value from the mPPG value; compare the first mHR value with the second mHR value to identify a noise correction value; and apply the identified noise correction value to the mPCG value to extract a fetal phonocardiogram (fPCG) value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.