Fetal sensor which self-inflates using capillary force
US6195575A · kind A · utility
98Cited by
4References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 2, 1997 |
| Grant date | Feb 27, 2001 |
| Priority date | — |
| Expiry date | Apr 2, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/6885
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A fetal sensor with a biasing mechanism for biasing the sensor against the fetus, with the biasing mechanism being automatically self-inflating and insertable in compressed form. The biasing mechanism in a preferred embodiment is a compressed foam or sponge which expands upon being exposed to fluid, such as amniotic fluid within the uterus. Thus, the biasing mechanism can be compressed to allow easy insertion, and then can expand once in place to provide the pressure needed to hold the sensor against the fetus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.