Method and apparatus for reducing free flow risk
US7628590B2 · kind B2 · utility
16Cited by
29References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 16, 2005 |
| Grant date | Dec 8, 2009 |
| Priority date | — |
| Expiry date | Nov 18, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/2605
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A technique for reducing the risk of free flow through a pump is disclosed. The technique includes sensing a pressure difference between the pump inlet and outlet. The pressure difference is mechanically communicated to a flow restricting element. The flow restricting element increases resistance to flow exiting the pump outlet in a relation to the pressure difference present between the pump inlet and pump outlet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.