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    • 5. 发明授权
    • Immobilization of an anti-thrombogenic substance with a photo-reactive
azide and a photo-crosslinking material
    • 用光反应性叠氮化物和光交联材料固定抗血栓形成物质
    • US5348873A
    • 1994-09-20
    • US963089
    • 1992-10-19
    • Takehisa MatsudaYasuhide NakayamaTakashi Sugawara
    • Takehisa MatsudaYasuhide NakayamaTakashi Sugawara
    • A61L33/00A61M25/00C12N11/04C12N11/08A61F13/00C12N11/06
    • C12N11/04A61L33/0029C12N11/08Y10S514/822
    • An anti-thrombogenic substance is immobilized on a base of a medical device to impart anti-thrombogenic properties to the medical device. The method comprises the steps of applying a photo-reactive azide derivative macromolecular material to a base to form a bonding layer, coating the bonding layer with a macromolecular layer composed of a water-soluble photo-crosslinking macromolecular material containing the anti-thrombogenic substance, and irradiating the base with ultraviolet light with the bonding layer and the macromolecular layer formed thereon to develop inter-molecular covalent bonding in the bonding layer. The macromolecular layer containing the anti-thrombogenic substance is thus fixed onto the base. Concurrently, the anti-thrombogenic substance is immobilized in the macromolecular layer which is crosslinked. The azide derivative can be poly-m-azidostyrene, copolymers, of poly-m-aziodstyrene with styrene and copolymers of poly-m-azidostyrene with methyl methacrylate. The water-soluble photo-crosslinking macromolecular material can be a copolymer of a photo-dimeric monomer with a water-soluble monomer or a copolymer of a photo-reactive azide with a water-soluble monomer.
    • 将抗血栓形成物质固定在医疗装置的基底上,以向医疗装置赋予抗血栓形成性质。 该方法包括以下步骤:将光反应性叠氮化物衍生物高分子材料施加到基底上以形成结合层,用包含抗血栓形成物质的水溶性光交联性高分子材料构成的高分子层涂覆粘合层, 并用形成在其上的接合层和高分子层的紫外线照射基底,以在接合层中形成分子间共价键。 因此将含有抗血栓形成物质的大分子层固定在基底上。 同时,抗血栓形成物质固定在交联的高分子层中。 叠氮衍生物可以是聚 - 间 - 叠氮基苯乙烯,聚 - 间 - 偶氮苯乙烯与苯乙烯的共聚物和聚 - 叠氮基苯乙烯与甲基丙烯酸甲酯的共聚物。 水溶性光交联高分子材料可以是光二聚单体与水溶性单体或光反应性叠氮化物与水溶性单体的共聚物的共聚物。
    • 9. 发明授权
    • Method of and apparatus for separating a balloon in a balloon catheter
    • 球囊导管中球囊分离方法及装置
    • US4944746A
    • 1990-07-31
    • US322923
    • 1989-03-14
    • Hiroo IwataSen YamagataWaro TakiTakehisa MatsudaHaruhiko KikuchiYasuhiro YonekawaYasuhiro Goto
    • Hiroo IwataSen YamagataWaro TakiTakehisa MatsudaHaruhiko KikuchiYasuhiro YonekawaYasuhiro Goto
    • A61M25/00A61B17/12
    • A61B17/12109A61B17/12136A61M2025/1054
    • An apparatus for separating a balloon from a catheter member of a balloon is capable of melting and breaking a heat-meltable connecting member through which the balloon is connected to the catheter body by causing an electric current to flow between at least a pair of electrodes arranged on or in the vicinity of the connecting member. The apparatus has impedance measuring means for measuring the impedance of an electrode circuit including a pair of electrodes and lead lines connected to the electrodes, and judging means for comparing the measured value of the impedance with a predetermined reference range and capable of producing an abnormal signal when the measured value of the impedance does not fall within the predetermined reference range. The apparatus enables the operator to judge whether the electrode circuit is in safe condition, before changing the balloon with a settable liquid and to charge a settable liquid into the balloon only when the safe condition of the electrode circuit is confirmed, so that the balloon after the setting of the liquid can be separated from the catheter body without fail, thus eliminating any risk for the catheter body to dangerously remain in the living body.
    • 用于从球囊的导管构件分离球囊的装置能够熔化和破坏可热熔连接构件,气球通过该热连接构件连接到导管主体,通过使电流在布置的至少一对电极之间流动 在连接构件上或附近。 该装置具有用于测量电极电路的阻抗的阻抗测量装置,该电极电路包括一对连接到电极的电极和引线,以及判断装置,用于将阻抗的测量值与预定的参考范围进行比较,并且能够产生异常信号 当阻抗的测量值不在预定参考范围内时。 该设备使得操作者能够在电极回路处于安全状态之前,在用可固化液体改变球囊之前,仅在电极回路的安全状态被确认之后才将可固定液体充入球囊中, 液体的设置可以不导通地与导管体分离,从而消除导管体危险地残留在生物体中的任何风险。
    • 10. 发明授权
    • Medical adhesive
    • 医用胶
    • US08273847B2
    • 2012-09-25
    • US10594627
    • 2005-03-23
    • Tetsuji YoshimuraTetsuya YamadaTakehisa Matsuda
    • Tetsuji YoshimuraTetsuya YamadaTakehisa Matsuda
    • A61L26/00C08G18/73C08G18/77C08K5/13C09J175/08
    • C09J175/04A61L24/043C08G18/10C08G18/773C08G18/3228
    • A medical adhesive comprises a hydrophilic urethane prepolymer (UP) obtained by reacting a fluorine-containing nonaromatic polyisocyanate component (A) and a polyol component (B) having a hydrophilic polyol (B1), and a phenolic radical scavenger (PRS). The content of (PRS) is preferably 0.01 to 3% by weight based on the weight of (UP). The content of oxyethylene groups in (B) is preferably 30 to 100% by weight based on the weight of the oxyalkylene groups in (B). Preferably, (B) is a mixture of a random copolymer obtained by addition of ethylene oxide and propylene oxide to diols and polypropylene glycol. The content of isocyanate groups in the medical adhesive is 1 to 10% by weight based on the weight of (UP). The medical adhesive is suitable for bonding body tissues, such as lung, artery and heart in particular.
    • 医用胶粘剂包括通过使含氟非芳族多异氰酸酯组分(A)和具有亲水多元醇(B1)的多元醇组分(B)和酚基清除剂(PRS)反应获得的亲水性氨基甲酸酯预聚物(UP)。 (PRS)的含量以(UP)的重量计优选为0.01〜3重量%。 (B)中的氧化乙烯基的含量相对于(B)中的氧化烯的重量优选为30〜100重量%。 优选地,(B)是通过在二醇和聚丙二醇中加入环氧乙烷和环氧丙烷得到的无规共聚物的混合物。 医用粘合剂中异氰酸酯基的含量为(UP)重量的1〜10重量%。 医用粘合剂特别适用于结合身体组织,如肺,动脉和心脏。