Blood container having lay-flat sample reservoir
US5167656A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 22, 1991 |
| Grant date | Dec 1, 1992 |
| Priority date | — |
| Expiry date | Jan 22, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/4673
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The method is provided of collecting blood with a donor needle inserted into the vein, which comprises an improvement of: after drawing a desired amount of blood into the blood storage container connected to one end of flexible tubing, occluding flow through said flexible tubing at a point adjacent a flexible, transversely enlarged tubing portion positioned at a location on the tubing spaced from the ends. The flow occluding point is located between the enlarged tubing portion and the container, and the tubing portion is initially of lay-flat type, prior to passing blood through it. One then draws more blood through the needle to enter and fill the enlarged tubing portion. One then occludes flexible tubing between the enlarged tubing portion and the needle prior to withdrawing the needle from the vein of the blood donor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.