Hemocathartic column for purifying blood
AssigneeToray Industries, Inc.
InventorsSanae Masuko, Tadayuki Matsumoto, Shinji Shimizu
Life of this patent
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Abstract
A hemocathartic column and apparatus, in which a column containing an adsorber capable of adsorbing and removing impurity components in blood, and in which the blood of an organism is extracorporeally circulated through the column, to be purified, and further in which if the pressure of blood at 120 minutes after start of blood circulation is P120 and the pressure of blood at 5 minutes after start of blood circulation is P5, then a relation of (P120/P5)≦1.3 is satisfied.
Claims5
A hemocathartic column comprising a cylinder, a first header closing one end of the cylinder and having a first blood passage communicating into the cylinder, a second header closing the other end of the cylinder and having a second blood passage communicating into the cylinder, and an adsorber contained in the cylinder, wherein a first end plate is provided at the end of the cylinder on the first header side;
- a second end plate is provided at the end of the cylinder on the second header side;
- a blood flow pipe extending from the first end plate to the second end plate and provided with many blood-flowing openings in the circumference surface is provided in the central portion of the cylinder;
- the blood flow pipe communicates, at one end, to the first header and is closed at the other end;
- no clearance is formed between the outer circumferential surface of the first end plate and the inner circumferential surface of the cylinder;
- a blood-flowing clearance is formed between the outer circumferential surface of the second end plate and the inner circumferential surface of the cylinder;
- the adsorber is contained between the inner circumferential surface of the cylinder and the outer circumferential surface of the blood flow pipe;
- and the opening rate OR (%) which refers to the rate of the total opening area TOA of the many openings provided in the circumferential surface of the blood flow pipe to the surface area SA of the portion of the blood flow pipe facing the adsorber satisfies a relation of 15%≦OR≦85%.
Dependencies are inferred from the claim text.