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    Drug-delivery pumps and methods of manufacture
    28.
    发明授权
    Drug-delivery pumps and methods of manufacture 有权
    药物输送泵和制造方法

    公开(公告)号：US08231609B2

    公开(公告)日：2012-07-31

    申请号：US12463254

    申请日：2009-05-08

    申请人： Changlin Pang ,  Fukang Jiang ,  Jason Shih ,  Sean Caffey ,  Mark Humayun ,  Yu-Chong Tai

    发明人： Changlin Pang ,  Fukang Jiang ,  Jason Shih ,  Sean Caffey ,  Mark Humayun ,  Yu-Chong Tai

    IPC分类号： A61K9/22

    CPC分类号： A61F9/00781 ,  A61F9/0017 ,  A61M5/1408 ,  A61M5/142 ,  A61M5/14276 ,  A61M5/14593 ,  A61M5/16886 ,  A61M39/24 ,  A61M2005/14204 ,  A61M2005/14264 ,  A61M2205/0244 ,  A61M2210/0612 ,  B44C1/227 ,  Y10T156/1092 ,  Y10T156/1093 ,  Y10T307/625

    摘要： Embodiments of an implantable electrolytic pump include an electrolysis chamber, a drug chamber and an osmosis chamber, the osmosis chamber having a first portion in contact with the drug chamber and a second portion exposed to facilitate contact with a surrounding fluid. The pump further includes a cannula for conducting liquid from the drug chamber and electrolysis electrodes within the electrolysis chamber for causing generation of a gas therein, the electrolysis and drug chambers being in contact such that gas electrolysis within electrolysis chamber forces fluid from the drug chamber into the cannula, contact between the drug chamber and the osmosis chamber permitting fluid admitted into the osmotic chamber from the surrounding fluid to offset volume loss from the drug chamber and prevent buildup of vacuum pressure thereon.

    摘要翻译： 可植入电解泵的实施例包括电解室，药物室和渗透室，渗透室具有与药物室接触的第一部分和暴露于便于与周围流体接触的第二部分。 泵还包括用于从药物腔室导出液体的插管和电解室内的电解电极，用于在其中产生气体，电解和药物室接触，使得电解室内的气体电解迫使来自药物室的流体进入 插管，药物室和渗透室之间的接触，允许从周围流体进入渗透室的流体以抵消药物室的体积损失并防止其上的真空压力的累积。