TFO Story
Transabdominal Fetal Pulse Oximetry (TFO) is a groundbreaking device that will shape fetal monitoring systems for better and safer deliveries.
Current Fetal Monitoring
01
Currently, physicians use Electronic Fetal Monitoring to assess fetal well-being which tracks fetal heart rate and maternal uterine contractions using cardiotocography which is ultra-sound based.
02
C-section Rates in the US
Fetal heart rate tracking is an indirect method of assessing fetal well-being and the traces cause uncertainty for physicians leading to unnecessary c-sections causing higher c-section rates than WHO recommended in the US.
03
TFO
TFO is a novel non-invasive system that uses light to estimate Fetal Blood Oxygen Saturation through the maternal abdomen.
04
Safer Delivery
By measuring Fetal Blood Oxygen Saturation which is a more direct assessment of fetal well-being, physicians have more confidence in fetal assessment which will reduce unnecessary c-sections resulting in safer deliveries.
Patents
ROBUST, CLINICAL-GRADE TRANSABDOMINAL FETAL PULSE OXIMETRY
S Ghiasi, D Fong. US Patent 11,116,412
SAFE AND RELIABLE TRANSABDOMINAL FETAL OXIMETRY
Golnaz A. Kivi, and Soheil Ghiasi. US Patent 12,042,278
CONTEXTUALLY AWARE FETAL SENSING IN TRANSABDOMINAL FETAL PULSE OXIMETRY
S Ghiasi, D Fong. US Patent 12,070,312
SAFE AND RELIABLE TRANSABDOMINAL FETAL OXIMETRY
Golnaz A. Kivi, and Soheil Ghiasi. US Patent 11,684,295
TRANSABDOMINAL FETAL OXIMETRY WITHOUT EXPLICIT FETAL SIGNAL EXTRACTION
TRANSABDOMIANL FETAL OXIMETRY THROUGH TIME-DOMAIN NEAR-INFRARED SPECTROSCOPY
Weijian Yang, Shing-Jiuan Liu, and Soheil Ghiasi. US Patent Application 63/118,359
DEEP HARMONIC FINESSE: SIGNAL SEPARATION IN WEARABLE SYSTEMS WITH LIMITED DATA
Mahya Saffarpour, Soheil Ghiasi. International Patent Application PCT/US2025/014661