发明名称 |
VALVE FOR OSMOTIC DEVICES |
摘要 |
<p>An osmotic delivery system for controlled delivery of a beneficial agent includes an implant capsule having a beneficial agent reservoir, an osmotic agent which expands on contact with fluid imbibed through a permeable membrane retained by the implant capsule, a delivery port, and a valve for opening and closing the delivery port. When the osmotic agent expands, a pressure is exerted against a separating member positioned between the beneficial agent reservoir and the osmotic agent. The separating member moves within the capsule, thereby forcing the valve to move a distance such that the beneficial agent can exit the reservoir through the delivery port.</p> |
申请公布号 |
EP1328256(B1) |
申请公布日期 |
2005.10.19 |
申请号 |
EP20000984483 |
申请日期 |
2000.12.13 |
申请人 |
ALZA CORPORATION |
发明人 |
CARR, JOHN, P.;ECKENHOFF, JAMES, B. |
分类号 |
A61K9/00;A61K9/22;A61K9/52;(IPC1-7):A61K9/22 |
主分类号 |
A61K9/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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