Method of detecting occlusions in a solution pumping system
US5292306A · kind A · utility
178Cited by
7References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 29, 1993 |
| Grant date | Mar 8, 1994 |
| Priority date | — |
| Expiry date | Jan 29, 2013 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M5/16854
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method of detecting occlusions in a solution pumping system includes monitoring and analyzing pressures within the system during selected portions of a pumping cycle. The pumping system of the illustrated embodiment includes a positive displacement pump operated by a reciprocable pump piston, with analysis of pressures within the system identifying those conditions which reflect the presence of an occlusion either upstream or downstream of the positive displacement pump. A suitable signal or alarm can then be activated to alert operating personnel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.