Drug cores for sustained release of therapeutic agents
    31.
    发明授权
    Drug cores for sustained release of therapeutic agents 有权
    用于持续释放治疗剂的药物核心

    公开(公告)号:US08628792B2

    公开(公告)日:2014-01-14

    申请号:US13367823

    申请日:2012-02-07

    IPC分类号: A61F2/00 B28B11/12

    摘要: A solid drug core insert can be manufactured by injecting a liquid mixture comprising a therapeutic agent and a matrix precursor into a sheath body. The injection can be conducted at subambient temperatures. The mixture is cured to form a solid drug-matrix core. The therapeutic agent can be a liquid at about room temperature that forms a dispersion of droplets in the matrix material. A surface of the solid drug core is exposed, for example by cutting the tube, and the exposed surface of the solid drug core releases therapeutic quantities of the therapeutic agent when implanted into the patient. In some embodiments, the insert body inhibits release of the therapeutic agent, for example with a material substantially impermeable to the therapeutic agent, such that the therapeutic quantities are released through the exposed surface, thereby avoiding release of the therapeutic agent to non-target tissues.

    摘要翻译: 可以通过将包含治疗剂和基质前体的液体混合物注入鞘体来制造固体药物核心插入物。 注射可以在低于环境温度下进行。 将混合物固化以形成固体药物基质核心。 治疗剂可以是在约室温下的液体,其形成液滴在基质材料中的分散体。 固体药物核心的表面例如通过切割管而暴露,并且固体药物核心的暴露表面在植入患者体内释放治疗剂量。 在一些实施方案中,插入体抑制治疗剂的释放,例如具有对治疗剂基本上不可渗透的材料,使得治疗量通过暴露表面释放,从而避免将治疗剂释放到非靶组织 。

    OCULAR INSERT APPARATUS AND METHODS
    32.
    发明申请
    OCULAR INSERT APPARATUS AND METHODS 有权
    OCULAR插入装置和方法

    公开(公告)号:US20130144128A1

    公开(公告)日:2013-06-06

    申请号:US13618052

    申请日:2012-09-14

    IPC分类号: A61B17/00

    摘要: A comfortable insert comprises a retention structure sized for placement under the eyelids and along at least a portion of conjunctival sac of the upper and lower lids of the eye. The retention structure resists deflection when placed in the conjunctival sac of the eye and to guide the insert along the sac when the eye moves. The retention structure can be configured in many ways to provide the resistance to deflection and may comprise a hoop strength so as to urge the retention structure outward and inhibit movement of the retention structure toward the cornea. The insert may move rotationally with deflection along the conjunctival sac, and may comprise a retention structure having a cross sectional dimension sized to fit within folds of the conjunctiva. The insert may comprise a release mechanism and therapeutic agent to release therapeutic amounts of the therapeutic agent for an extended time.

    摘要翻译: 舒适的插入物包括保持结构,其尺寸适于放置在眼睑下方并且沿着眼睛的上盖和下盖的结膜囊的至少一部分。 保留结构在放置在眼结膜囊中时抵抗偏转,并且当眼睛移动时沿着囊引导插入物。 保持结构可以以许多方式构造以提供对偏转的抵抗力,并且可以包括环箍强度,以便向外推动保持结构并阻止保持结构朝向角膜的移动。 插入件可以沿着结膜囊的偏转而旋转移动,并且可以包括保持结构,该保持结构具有尺寸适合于结膜折叠的横截面尺寸。 插入物可以包含释放机制和治疗剂以释放长期治疗剂的治疗剂量。