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    SEMIPERMEABLE MEMBRANE AND ITS MANUFACTURE
    34.
    发明专利
    SEMIPERMEABLE MEMBRANE AND ITS MANUFACTURE 失效

    公开(公告)号：JPS61283304A

    公开(公告)日：1986-12-13

    申请号：JP12259085

    申请日：1985-06-07

    Applicant: TORAY INDUSTRIES

    Inventor： SONODA TAKESHI ,  TANAKA YOSHITAKA ,  IIDA HIROSHI

    IPC: B01D71/48 ,  B01D71/52 ,  B01D71/80

    Abstract: PURPOSE:To produce a medical semipermeable membrane which does not create thrombus during membrane contact with blood by adding acid other than telephthalic acid and polyethylene glycol to a copolymer of telephthalic acid and low molecular weight glycol. CONSTITUTION:A fixed quantity of decarboxylic acid demethyl ester and low molecular weight glycol like 1,4-butanediol are exchange-reacted in the presence of catalyst so that the polymer contains telephthalic acid as essential ingredient, isophthalic acid, adipic acid and other acids totally by 20-60mol%. Then polymeric catalyst and polyethylene glycol of average molecular weight 1,000-60,000 are so added that their sub-total is 5-30wt% of total weight of polymer and a polyester copolymer is provided after polycondensing under high temperature vacuum. It is solved in a solution such as 1,3-dioxolan solvent to produce membrane liquid to be formed up into membrane by a well-known process to be spun into hollow yarn to produce membrane.

    SERUM SAMPLER FOR EXAMINATION
    36.
    发明专利
    SERUM SAMPLER FOR EXAMINATION 失效

    公开(公告)号：JPS6056261A

    公开(公告)日：1985-04-01

    申请号：JP16328083

    申请日：1983-09-07

    Applicant: TORAY INDUSTRIES

    Inventor： SONODA TAKESHI ,  TAKENAKA SHIGENORI

    IPC: G01N33/48 ,  G01N33/49

    Abstract: PURPOSE:To obtain a serum sampler for examination capable of sampling only serum without requiring centrifugal separating operation and returning materiality components to a person to be examined. CONSTITUTION:The sampling of blood to a syringe barrel is performed through an injection needle from a person to be examined in the similar way as usual sampling of blood to be examined or performed through this inventive serum sampler in such a state that the injection needle is connected to a serum lead- out part 4 when said serum sampler is defoamed. Blood thus sampled in the syringe barrel is subsequently introduced into the serum sampler through a blood introducing part 1. By this operation, the introduced blood passes the blood flowline 3 of a thin layer formed of a diaphragm to be contacted with a serum separation membrane 2 and a part of serum is stored in a reservoir part 6 while separated by filtering and collected from a withdrawal port 7 as serum for examination. On the other hand, blood corpuscle components and serum not filtered and separated are led out from a blood lead-out part 4 and returned to the person to be examined through the injection needle.

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