John R. Peery,Keith E. Dionne,Felix A. Landrau,James B. Eckenhoff,Scott D. Lautenbach,Judy A. Magruder,Jeremy C. Wright
申请号：
US13645124
公开号：
US20130035669A1
申请日:
2012.10.04
申请国别(地区):
US
年份:
2013
代理人:
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.
