Method of separating blood plasma, and apparatus therefor

Details Method of separating blood plasma, and apparatus therefor Method of separating blood plasma, and apparatus therefor

A - Human Necessities

61

M

182/15.2

A61M 1/16 (2006.01) A61M 1/30 (2006.01) B01D 61/14 (2006.01) B01D 63/08 (2006.01) A61M 1/26 (2006.01) A61M 1/34 (2006.01) A61M 1/36 (2006.01)

Patent

CA 1267610

ABSTRACT OF THE DISCLOSURE A method and apparatus for the semicontinuous separation of plasma from blood collects blood from and returns blood to an individual in an intermittent manner. Blood introduced from, say, a donor is fed into membrane-type blood plasma separating means by a circulating mean so that plasma may be separated from the blood. Some of the concentrated blood that results is pooled in blood reservoir means, and the remaining concentrated blood is mixed with newly introduced blood and fed into the plasma separating means to repeat plasma separation and, hence, concentration. When a predetermined amount of blood has been introduced from the donor, some of the blood remaining in the system is returned to the donor by a blood feed circuit, while the blood remaining in the system is subjected to plasma separation and concentration again. Separation of plasma is thus performed during both the blood introduction and return cycles without pause.

487969

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