The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 07, 1994
Filed:
Sep. 03, 1992
Applicant:
Inventor:
Hans-Jurgen Neumann, Wendel-Niederkirchen, DE;
Assignee:
Fresenius AG, Bad Homburg v.d.H., US;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61M / ;
U.S. Cl.
CPC ...
604-6 ;
Abstract
Device for the separation of blood with a cannula with the aid of separation in a centrifuge with a blood pump in an inlet line and a collection storage bag, which can be emptied with the aid of a pressure device into a return line. The flow resistance R.sub.o of the return line is designed so that it has preferably about half of the flow resistance of the remainder of the return system. In a return/recirculation phase, the blood pump is operated at a predetermined recirculation flow rate F.sub.R, whereby a predetermined cannula infusion flow rate F.sub.N is established as a function thereof.