Fluid injector system, method of preventing fluid backflow, and computer program product
US12208239B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 27, 2019 |
| Grant date | Jan 28, 2025 |
| Priority date | — |
| Expiry date | Mar 29, 2042 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2005/3128
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A fluid injector system and method for preventing pressurized backflow of a second fluid into a first reservoir containing a fluid is described. The fluid injector system includes a control device programmed or configured to actuate a second drive component to pressurize and inject the second fluid through the fluid conduit, and while the second drive component is actuated, actuate a first drive component to introduce intermittent pulses of the first fluid to create a flow front interface between the first fluid and the second fluid in the fluid conduit to prevent backflow of the second fluid through the fluid conduit into the first fluid reservoir.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.