Positioning method for pulse oximetry fetal sensor
US5961452A · kind A · utility
108Cited by
7References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 20, 1997 |
| Grant date | Oct 5, 1999 |
| Priority date | — |
| Expiry date | Oct 20, 2017 |
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 and for use in determining the depth of the sensor in the vagina.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.