Infusion pump monitoring encoder/decoder
US6078273A · kind A · utility
23Cited by
12References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 22, 1997 |
| Grant date | Jun 20, 2000 |
| Priority date | — |
| Expiry date | Jan 22, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01D5/2451
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention provides a method and apparatus for monitoring an infusion pump (10). The method and apparatus provides an encoder (101) which is used with a motor (65) of the infusion pump (10) and a monitoring method which effectively provides rotational directional information. The present invention utilizes a state transition of a first switch (111) indexed against a constant signal from a second switch (113) corresponding to the center of a flag (117) or sector (119).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.