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:
Jun. 10, 2025
Filed:
Jun. 02, 2021
North Carolina State University, Raleigh, NC (US);
Michael Daniele, Raleigh, NC (US);
Michael Wilkins, Raleigh, NC (US);
North Carolina State University, Raleigh, NC (US);
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.