Fetal pulse oximetry apparatus and method of use
US5228440A · kind A · utility
145Cited by
28References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 15, 1990 |
| Grant date | Jul 20, 1993 |
| Priority date | — |
| Expiry date | Oct 15, 2010 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/14542
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An intrauterine pulse oximetry apparatus and method are provided to measure fetal blood oxygen saturation at sites in a preferred region on the fetus. The sensor of the apparatus is attached to a stiff cable which can be inserted into the uterus past the presenting part and transcervical region of the fetus. The cable may have visual and tactile markings by which the user, without seeing or feeling the sensor, can guide it to an appropriate site on the fetus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.