Surgery – Blood drawn and replaced or treated and returned to body – Constituent removed from blood and remainder returned to body
Patent
1987-09-21
1990-11-06
Wax, Robert A.
Surgery
Blood drawn and replaced or treated and returned to body
Constituent removed from blood and remainder returned to body
604 4, 210782, 364502, 494 6, 494 10, A61M 500
Patent
active
049682954
ABSTRACT:
The invention relates to the control of a system in a blood centrifuge for separating the constituents (fractions) of the whole blood taken from a donor "in vivo" and provided with anticoagulants. A control is provided which as input quantity includes a signal on the flow rate of the full blood and on the output side is connected to the speed setting means for the blood centrifuge. The transfer function of the control is so defined that on a change of the full blood flow the speed of rotation is set so that the volume ratios of the blood fractions to the full blood remain constant. Preferably, the output signal of the control is proportional to the square root of the full blood flow. The control is preferably formed by a microprocessor.
REFERENCES:
patent: 3655123 (1972-04-01), Judson et al.
patent: 4151844 (1979-05-01), Cullis et al.
patent: 4185629 (1980-01-01), Cullis et al.
patent: 4187979 (1980-02-01), Cullis et al.
patent: 4447191 (1984-05-01), Bilstad et al.
patent: 4458539 (1984-07-01), Bilstad et al.
patent: 4464167 (1984-08-01), Schoendorfer et al.
patent: 4481827 (1984-11-01), Bilstad et al.
Fresenius AG
Wallen T. J.
Wax Robert A.
LandOfFree
Method of separating the constituents of the blood does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of separating the constituents of the blood, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of separating the constituents of the blood will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1304881