发明名称 |
Bioerodible system for delivering drug manufactured from poly(carboxylic acid) |
摘要 |
A device for the controlled continuous administration of an active agent to an environment of use is disclosed. The device comprises a body of erodible agent release rate controlling material containing an agent dispersed therethrough; the rate controlling material is a hydrophobic poly(carboxylic acid) having one ionizable carboxylic hydrogen for each 8 to 12 carbon atoms, which material erodes at a controlled and continuous rate over a prolonged period of time in response to the environment by a process of carboxylic hydrogen ionization, thereby releasing the dispersed agent at a controlled rate over a prolonged period of time.
|
申请公布号 |
US4249531(A) |
申请公布日期 |
1981.02.10 |
申请号 |
US19790054788 |
申请日期 |
1979.07.05 |
申请人 |
ALZA CORP |
发明人 |
BAKER, RICHARD W;HELLER, JORGE |
分类号 |
A61F6/14;A61K9/00;A61M31/00;(IPC1-7):A61M7/00 |
主分类号 |
A61F6/14 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|