Portable hand held doppler fetal heart rate probe with selective power settings
US5827969A · kind A · utility
13Cited by
3References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 12, 1996 |
| Grant date | Oct 27, 1998 |
| Priority date | — |
| Expiry date | Jun 12, 2016 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B8/0866
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A probe in a hand held ultrasonic Doppler fetal heart beat detector and monitoring system comprising a crystal for transmitting ultrasonic energy, a variable power source connected to said crystal for driving the crystal at a selected power setting and a microprocessor for selecting a power setting for the variable power source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.