Apparatus for continuously sampling plasma
US4976270A · kind A · utility
125Cited by
11References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 28, 1989 |
| Grant date | Dec 11, 1990 |
| Priority date | — |
| Expiry date | Mar 28, 2009 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/150992
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method and apparatus for continuously sampling plasma are disclosed. The method of the present invention comprises removing blood from the patient, separating a substantially small portion of plasma, and returning the blood to the patient. The removing, separating, and returning steps are performed continuously and simultaneously with each other. The apparatus of the present invention relates to a double-lumen cannula or venipuncture needle for the removal and returning of blood to the patient at the same site.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.