Method for attachment of biomolecules to medical device surfaces
    62.
    发明授权
    Method for attachment of biomolecules to medical device surfaces 失效
    将生物分子附着到医疗器械表面的方法

    公开(公告)号:US06617142B2

    公开(公告)日:2003-09-09

    申请号:US09257543

    申请日:1999-02-24

    IPC分类号: C12N1100

    摘要: Methods are provided for forming a coating of an immobilized biomolecule on a surface of a medical device to impart improved biocompatibility for contacting tissue and bodily fluids. A biomolecule such as a glycoprotein having an unsubstituted amide moiety is combined with an amine forming agent to form an amine-functional biomolecule. The amine-functional biomolecule is combined with a medical device surface having a chemical moiety such as aldehyde, epoxide, isocyanate, 1,2-dicarbonyl, phosphate, sulphate or carboxylate to form a chemical bond immobilizing the biomolecule on the surface. The chemical bond may be combined with a reducing agent or a stabilizing agent. The aldehyde moiety may be formed by combining a periodate with a 2-aminoalcohol moiety or a 1,2-dihydroxy moiety. Alternatively, an amine-functional medical device surface is combined with a biomolecule having a chemical moiety that reacts with an amine moiety. In another embodiment, the amine-functional biomolecule is converted to a guanidino-functional biomolecule and is combined with a medical device surface having a chemical moiety that reacts with a guanidino moiety. Alternatively, an amine-functional medical device surface is converted to a guanidino-functional surface and is combined with a biomolecule having the chemical moiety. Biomolecules may be crosslinked by combining the amine-functional or guanidino-functional biomolecule with a biomolecule having a chemical moiety that forms a chemical bond with an amine moiety or a guanidino moiety.

    摘要翻译: 提供了用于在医疗装置的表面上形成固定的生物分子的涂层的方法,以提高用于接触组织和体液的生物相容性。 将具有未取代的酰胺部分的生物分子例如具有未取代的酰胺部分的糖蛋白与胺形成剂合并以形成胺官能的生物分子。 将胺官能的生物分子与具有化学部分的医疗装置表面结合,例如醛,环氧化物,异氰酸酯,1,2-二羰基,磷酸酯,硫酸酯或羧酸酯,以形成将生物分子固定在表面上的化学键。 化学键可以与还原剂或稳定剂组合。 醛部分可以通过将高碘酸酯与2-氨基醇部分或1,2-二羟基部分结合而形成。 或者,将胺官能医疗器械表面与具有与胺部分反应的化学部分的生物分子组合。 在另一个实施方案中,将胺官能的生物分子转化为胍基官能的生物分子,并与具有与胍基部分反应的化学部分的医疗装置表面组合。 或者,将胺官能医疗器械表面转化为胍基官能表面,并与具有化学部分的生物分子组合。 生物分子可以通过将胺官能或胍基官能的生物分子与具有与胺部分或胍基部分形成化学键的化学部分的生物分子结合而交联。

    Fixed tissue medical devices comprising albumin-binding dyes
    63.
    发明授权
    Fixed tissue medical devices comprising albumin-binding dyes 失效
    包含白蛋白结合染料的固定组织医疗装置

    公开(公告)号:US5509932A

    公开(公告)日:1996-04-23

    申请号:US044846

    申请日:1993-04-08

    摘要: An implantable medical device is provided which comprises a fixed tissue incorporating an amount of an albumin-binding dye effective to form a coating of endogenous albumin on said device when the device is in contact with a physiological fluid containing albumin. These albumin-binding dyes have been found to significantly reduce calcification when incorporated in tissue heart valves. A method of increasing the albumin-binding ability of an implantable medical device is also provided.

    摘要翻译: 提供了一种植入式医疗装置,其包括固定组织,当该装置与含有白蛋白的生理液体接触时,该固定组织掺入一定量的能够在所述装置上形成内源性白蛋白的涂层的白蛋白结合染料。 已经发现这些白蛋白结合染料当结合到组织心脏瓣膜中时显着降低钙化。 还提供了增加可植入医疗装置的白蛋白结合能力的方法。

    Periodate oxidative method for attachment of biomolecules to medical
device surfaces
    68.
    发明授权
    Periodate oxidative method for attachment of biomolecules to medical device surfaces 失效
    用于将生物分子附着到医疗器械表面的高碘酸氧化法

    公开(公告)号:US5945319A

    公开(公告)日:1999-08-31

    申请号:US1994

    申请日:1997-12-31

    申请人: James R. Keogh

    发明人: James R. Keogh

    摘要: Methods are provided for forming a coating of an immobilized biomolecule on a surface of a medical device to impart improved biocompatibility for contacting tissue and bodily fluids. A 2-aminoalcohol moiety of a biomolecule is oxidized with a periodate to an aldehyde moiety which is reacted with an amine moiety on the surface of a medical device to form an imine moiety, and the imine moiety is reduced to form an amine linkage immobilizing a coating of the biomolecule on the surface. In another method, a biomolecule coating containing an amine moiety and a 2-aminoalcohol moiety is immobilized on the surface of a medical device, the 2-aminoalcohol moiety is oxidized with a periodate to an aldehyde moiety which is reacted with the amine moiety to form an imine moiety, and the imine moiety is reduced to form a secondary amine and crosslink the coating. Each biomolecule may contain an amine moiety and a 2-aminoalcohol moiety, and the aldehyde moiety of one biomolecule resulting from periodate oxidation may react with the amine moiety of another biomolecule. In a further embodiment, a 2-aminoalcohol moiety on the surface of a medical device is oxidized with a periodate to an aldehyde moiety, and an amine moiety of a biomolecule is reacted with the aldehyde moiety to form an imine moiety which is reduced to form an amine linkage immobilizing the biomolecule on the surface.

    摘要翻译: 提供了用于在医疗装置的表面上形成固定的生物分子的涂层的方法,以提高用于接触组织和体液的生物相容性。 生物分子的2-氨基醇部分用高碘酸酯氧化成醛部分,其与医疗器械表面上的胺部分反应以形成亚胺部分,并且亚胺部分被还原以形成胺连接, 在表面上涂覆生物分子。 在另一种方法中,将包含胺部分和2-氨基醇部分的生物分子包被固定在医疗装置的表面上,2-氨基醇部分被高碘酸酯氧化成醛部分,其与胺部分反应形成 亚胺部分,并且亚胺部分被还原以形成仲胺并交联涂层。 每个生物分子可以含有胺部分和2-氨基醇部分,并且由高碘酸氧化产生的一个生物分子的醛部分可能与另一种生物分子的胺部分反应。 在另一个实施方案中,医疗器械表面上的2-氨基醇部分被高碘酸酯氧化成醛部分,并且生物分子的胺部分与醛部分反应以形成亚胺部分,其被还原形成 将生物分子固定在表面上的胺键。

    Oxidative method for attachment of glycoproteins or glycopeptides to
surfaces of medical devices
    69.
    发明授权
    Oxidative method for attachment of glycoproteins or glycopeptides to surfaces of medical devices 失效
    将糖蛋白或糖肽连接到医疗器械表面的氧化方法

    公开(公告)号:US5891506A

    公开(公告)日:1999-04-06

    申请号:US984922

    申请日:1997-12-04

    申请人: James R. Keogh

    发明人: James R. Keogh

    摘要: A method for making a medical device having at least one glycoprotein and/or glycopeptide immobilized on a substrate surface is provided. The method may include oxidizing 1,2 dihydroxy moieties with a periodate to form an aldehyde-functional material; combining the aldehyde-functional material with an amino-functional material to bond the two materials together through an imine moiety; and reacting the imine moiety with a reducing agent to form a secondary amine. Another method of the present invention may be employed to crosslink glycoproteins and/or glycopeptides immobilized on medical device surfaces. Additionally, one method of the present invention may be employed to crosslink glycoproteins and/or glycopeptides, thereby forming a crosslinked biomaterial or a crosslinked medical device coating.

    摘要翻译: 提供了一种用于制造具有固定在基底表面上的至少一种糖蛋白和/或糖肽的医疗装置的方法。 该方法可以包括用高碘酸盐氧化1,2-二羟基部分以形成醛官能材料; 将醛官能材料与氨基官能材料结合,通过亚胺部分将两种材料结合在一起; 并使亚胺部分与还原剂反应以形成仲胺。 可以使用本发明的另一种方法来交联固定在医疗装置表面上的糖蛋白和/或糖肽。 此外,本发明的一种方法可用于交联糖蛋白和/或糖肽,从而形成交联的生物材料或交联的医疗器械涂层。