Method and apparatus for purging tubing network of blood processing system
US4888004A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 13, 1987 |
| Grant date | Dec 19, 1989 |
| Priority date | — |
| Expiry date | May 13, 2007 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/7536
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Method and apparatus for purging air from a tubing network finds particular utility as a component part of a blood constituent processing system. Collection and return needles of a disposable tubing network are initially contained within a common antiseptic enclosure. A purge fluid (e.g., saline solution) may then be introduced into the interior chamber of the enclosure via one of the needles and withdrawn from the interior chamber via the other of the needles. Air entrained in the tubing network may thus be trapped within the common enclosure itself and/or vented therefrom via a one-way valve and hydrophobic microbe filter and/or the entrained air pockets may be encouraged to flow to a separate suitable air trap location of the tubing network whereby the network is purged of air.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.