Rotating mechanism for introducing a fetal electrode
US4301806A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 14, 1980 |
| Grant date | Nov 24, 1981 |
| Priority date | — |
| Expiry date | Apr 14, 2000 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/288
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An improved electrode structure for use in monitoring fetal heartbeat and the like. A guide tube has an open forward end adapted to be inserted through the vagina and cervix of a woman in labor. A signal acquisition device, adapted to rotatably engage a fetal epidermis, is slidably and rotatably disposed in the guide tube. A driving member is slidably and rotatably disposed in the guide tube for driving the signal acquisition device into engagement with a fetal epidermis. A line is attached to the driving member and is wrapped circumferentially around at least a portion of the driving member. A device is affixed to the line for pulling it tangentially with respect to the drive member, whereby the driving member and the signal acquisition device may be rotated for engaging a fetal epidermis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.