摘要:
A filter having a plurality of filter pores penetrating one surface and the other surface of the filter, in which the filter pore has a first opening on the one surface and a second opening on the other surface, a ratio of a major axis diameter L1 to a minor axis diameter W1 of the first opening is 1.00 or more and 1.20 or less, the minor axis diameter W1 is 7.0 µm or more and 9.0 µm or less, a ratio of a major axis diameter L2 to a minor axis diameter W2 of the second opening is 1.00 or more and 1.20 or less, and a ratio of the minor axis diameter W2 to the minor axis diameter W 1 and a ratio of the major axis diameter L2 to the major axis diameter L1 are both 1.20 or more and 1.50 or less.
摘要:
An object of the present invention is to provide a porous adsorption material that is to be used for adsorbing and removing an impurity from a solution containing a raw biopharmaceutical compound while suppressing clogging and is high in separation selectivity, and the present invention provides a porous adsorption material that is to be used for adsorbing and removing an impurity from a solution containing a raw biopharmaceutical compound and includes a layer containing a nonionic polymer on at least one surface of the porous adsorption material.
摘要:
An object of the present invention is to provide a hydrophilic polymer compound which can inhibit both of the blood coagulation reactions in the primary hemostasis stage in which platelets are involved and in the coagulation thrombus formation stage in which blood coagulation factors are involved, which hydrophilic polymer compound can be firmly immobilized on the surface of medical devices or medical materials, in the state retaining the anticoagulant activity. The present invention provides a hydrophilic polymer compound comprising a polymer compound which inhibits platelet adhesion, and a compound that inhibits blood coagulation reaction, bound to said polymer compound.
摘要:
The present invention relates to a substrate including a compound having blood anticoagulation activity and a hydrophilic polymer compound, wherein the amount of elution of the compound having blood anticoagulation activity is less than 0.6 µg/ml, and a manufacturing method of a substrate, wherein after a compound having blood anticoagulation activity and a hydrophilic compound brought in contact with a substrate are irradiated with radiation, unreacted components are washed out.
摘要:
The present invention aims to provide a porous separation membrane that does not suffer a significant decrease in the protein permeability even after long term use. The porous separation membrane has an asymmetric structure with a dense layer forming one surface layer and with a coarse layer forming the other surface layer, supports a biocompatible polymer, and meet the requirements (1) and (2) given below in surface analysis of a cross section containing the dense layer and the coarse layer performed by TOF-SIMS: (1) the minimum value of normalized intensity of the ion signal attributed to the biocompatible polymer in the coarse layer is 0.15 times or more of the maximum value, and (2) the normalized average intensity of the ion signal attributed to the biocompatible polymer in the dense layer is 2.0 times or more of the normalized average intensity of the ion signal attributed to carboxylic acid in the coarse layer.
摘要:
An object of the present invention is to provide a purification column which is a small purification column in which a volume of a liquid to be treated is reduced in order to reduce the amount of blood to be taken out and which realizes a low pressure loss and has high adsorption performance. The present invention provides a fiber bundle including a plurality of porous fibers that satisfies the following requirements (A) to (E): (A) the porous fiber has a non-hollow shape, (B) an arithmetic average roughness (dry Ra value) of a surface of the porous fiber in a dry state is 11 nm or more and 30 nm or less, (C) an arithmetic average roughness (wet Ra value) of a surface of the porous fiber in a wet state is 12 nm or more and 40 nm or less, (D) a value represented by wet Ra/dry Ra is 1.05 or more, and (E) a linear rate of the fiber bundle represented by (length of fiber bundle)/(length of one porous fiber) is 0.97 or more and 1.00 or less.
摘要:
An object of the present invention is to provide a hollow fiber membrane module which makes it possible to concentrate incubated platelets by efficiently removing water from an incubated platelet suspension liquid containing incubated platelets while suppressing deterioration of the function of the incubated platelets. The present invention provides an incubated platelet concentration module in which a plurality of hollow fiber membranes each having pores with an average pore diameter of 2 µm or less on a surface of the hollow fiber membrane are packed in a casing having at least one inlet for supplying an incubated platelet suspension liquid before concentration into the hollow fiber membranes, wherein a value (X/Y1) obtained by dividing a total cross-sectional area (X) of the plurality of hollow fiber membranes by a total cross-sectional area (Y1) of the least one inlet is 4.0 or less.
摘要:
The present invention aims to provide a coating agent that can be applied to various materials without using radiation, and a medical material using the same. The present invention provides a coating agent containing a copolymer that contains: a monomer unit (unit A) containing a Si-O bond; a vinyl carboxylate monomer unit (unit B); and a monomer unit (unit C) containing a hydrophilic group.