发明授权
- 专利标题： Sustained delivery of an active agent using an implantable system
- 专利标题（中）： 使用可植入系统持续递送活性剂
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申请号： US09366746申请日： 1999-08-04
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公开(公告)号： US06261584B1公开(公告)日： 2001-07-17
- 发明人: John R. Peery , Keith E. Dionne , James B. Eckenhoff , Felix A. Landrau , Scott D. Lautenbach , Judy A. Magruder , Jeremy C. Wright
- 申请人： John R. Peery , Keith E. Dionne , James B. Eckenhoff , Felix A. Landrau , Scott D. Lautenbach , Judy A. Magruder , Jeremy C. Wright
- 主分类号： A61F200
- IPC分类号： A61F200
摘要：
The invention is directed to a device for delivering an active agent formulation for a predetermined administration period. An impermeable reservoir is divided into a water-swellable agent chamber and an active agent formulation chamber. Fluid from the environment is imbibed through a semipermeable plug into the water-swellable agent chamber and the active agent formulation is released through a back-diffusion regulating outlet. Delivery periods of up to 2 years are achieved.
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