Method and apparatus for detecting onset of gastric dysrhythmias and imminent nausea
US5857980A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 6, 1997 |
| Grant date | Jan 12, 1999 |
| Priority date | — |
| Expiry date | Jan 6, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/4238
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The invention provides a method and apparatus for automatically detecting loss of normal gastric myoelectrical activity and certain gastric dysrhythmias which indicate an imminent onset of nausea. Analog signals indicative of gastric myoelectrical activity are detected via electrodes, conditioned and then digitized. The resulting digital signals are passed through a digital band pass filter which has a pass band with a lower limit set at or near zero Hz, and the digitally conditioned signals are compared in a digital computer with stored predetermined signal patterns that are known to be indicative of the onset of imminent nausea. Upon detection of a match, an alarm is activated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.