Stent with radiopaque coating consisting of particles in a binder
    96.
    发明授权
    Stent with radiopaque coating consisting of particles in a binder 有权
    支架,不透射线涂层,由粘合剂中的颗粒组成

    公开(公告)号:US06355058B1

    公开(公告)日:2002-03-12

    申请号:US09475378

    申请日:1999-12-30

    CPC classification number: C25F3/22 A61L29/18 A61L31/18

    Abstract: A stent configuration wherein particles of radiopaque material contained within a polymeric binder is coated onto a stent core structure to enhance the radiopacity of the stent. The stent is initially formed and rendered radiopaque after all surfaces are coated with the radiopaque coating. The amount of particles of radiopaque materials can be varied (by volume) within the binder to either increase or decrease the radiopacity of the binder coating in order to obtain an optimal amount of radiopacity to the stent. The thickness of the coating also can be varied to fine tune the radiopacity of the stent.

    Abstract translation: 支架结构,其中包含在聚合物粘合剂内的不透射线材料颗粒涂覆在支架芯结构上以增强支架的不透射线性。 在所有表面用不透射线涂层涂覆之后,支架最初形成并呈不透射线。 不透射线材料的颗粒的量可以在粘合剂内变化(以体积计),以增加或降低粘合剂涂层的不透射线性,以获得对支架的最佳射线不透性量。 也可以改变涂层的厚度以微调支架的不透射线。

    Separation media for electrophoresis
    97.
    发明授权
    Separation media for electrophoresis 失效
    电泳分离介质

    公开(公告)号:US5569364A

    公开(公告)日:1996-10-29

    申请号:US241048

    申请日:1994-05-10

    CPC classification number: G01N27/44747 Y10S516/903 Y10S516/922

    Abstract: Separation media for electrophoresis, and methods of filling and flushing of electrophoretic devices such as capillaries are described. By preparing submicron to above-micron sized cross-linked gel particles and using gel swelling equilibrium concepts, such devices can be easily filled and flushed. Gel particles can be prepared by inverse suspension, precipitation and suspension polymerization. These particles can be swollen and collapsed by small changes in temperature, pH, and ionic strength of solvent. Other approaches involve the formation of reversible cross-links by use of polyelectrolyte complexes, chelating agents or copolymers of hydrophobic and hydrophilic repeat units. Finally, reversibly solubilized systems may be used to change the viscosity of the media.

    Abstract translation: 描述了用于电泳的分离介质,以及诸如毛细管的电泳装置的填充和冲洗方法。 通过将亚微米制备成高于微米尺寸的交联凝胶颗粒并使用凝胶溶胀平衡概念,可以容易地填充和冲洗这些装置。 凝胶颗粒可以通过反相悬浮,沉淀和悬浮聚合制备。 这些颗粒可以通过溶剂的温度,pH和离子强度的微小变化而溶胀和塌陷。 其他方法涉及通过使用聚电解质络合物,螯合剂或疏水和亲水重复单元的共聚物形成可逆交联。 最后,可以使用可逆溶解的系统来改变介质的粘度。

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