Method and electrical resistance probe for detection of estrus in bovine
US4224949A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 17, 1977 |
| Grant date | Sep 30, 1980 |
| Priority date | — |
| Expiry date | Nov 17, 1997 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2010/0016
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
This invention is drawn to a bovine vaginal probe capable of measuring electrical resistance in a bovine vaginal tract with sufficient accuracy to allow detection of changes in electrical resistance indicative of estrus. The electrodes of the probe are generally axially aligned on the surface of a generally cylindrical support. In the essentially axially parallel electrode configuration, in order to obtain the desired sensitivity where one set of electrodes are employed, the electrodes should be separated from each other by at least 45.degree. and preferably at least about 90.degree.. One preferred essentially axially parallel configuration employs two sets of electrodes, each separated by approximately 90.degree. so that two sets of resistance figures, ventral and dorsal can be obtained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.