Time-selective bioresorbable or collapsible drug delivery systems and methods
    2.
    发明授权
    Time-selective bioresorbable or collapsible drug delivery systems and methods 有权
    时间选择性生物可吸收或可折叠药物递送系统和方法

    公开(公告)号:US08690840B2

    公开(公告)日:2014-04-08

    申请号:US13267560

    申请日:2011-10-06

    IPC分类号: A61M31/00

    摘要: Implantable medical devices and treatment methods are provided, particularly for use in the bladder. The device is configured for retention in the bladder for at least a portion of the drug delivery period and includes at least one biodegradable component such that following a biodegradation at a selected time, the retention function is lost and the device or portions thereof are resorbed and/or excreted. The method may include deploying into the bladder of a patient a device having a device structure housing a drug formulation comprising at a drug; releasing drug from the device structure into the bladder; and then, changing the composition of urine in the bladder, e.g., by altering the pH, to trigger degradation of at least part of the device structure to enable the device structure or parts thereof to be excreted from the bladder.

    摘要翻译: 提供了可植入的医疗装置和治疗方法,特别用于膀胱。 该装置构造成在膀胱中保留药物递送期的至少一部分,并且包括至少一种可生物降解的组分,使得在选定时间内经过生物降解后,保留功能丧失并且其装置或部分被吸收, /或排泄。 该方法可以包括向患者的膀胱中部署具有容纳包含药物的药物制剂的装置结构的装置; 将药物从装置结构释放到膀胱中; 然后,例如通过改变pH来改变膀胱中尿液的组成,以触发装置结构的至少一部分的降解,使装置结构或其部分能够从膀胱排出。