发明名称 |
Osmotic Delivery Systems and Piston Assemblies for Use Therein |
摘要 |
An osmotic delivery system is disclosed for delivering an active agent formulation to a fluid environment. The osmotic delivery system typically comprises a reservoir having a lumen that contains the active agent formulation and an osmotic agent formulation and a piston assembly positioned in the lumen to isolate the active agent formulation from the osmotic agent formulation. The piston assembly typically comprises a body constructed and arranged for positioning in the lumen. The body is typically made of a polymeric material that is, for example, resistant to leaching in an organic solvent. In one embodiment, the body is a columnar body having a rim at a distal end thereof for engaging and sealing against a wall of the reservoir and the piston assembly further comprises a spring retained at the distal end of the columnar body for biasing the rim of the columnar body against the wall of the reservoir. |
申请公布号 |
US2014378900(A1) |
申请公布日期 |
2014.12.25 |
申请号 |
US201414316969 |
申请日期 |
2014.06.27 |
申请人 |
Intarcia Therapeutics, Inc. |
发明人 |
Alessi Thomas R.;DesJardin Michael A.;Lam Stan;Lautenbach Scott D.;Zamora Pauline C. |
分类号 |
F16J9/26;F16J9/28;A61M5/145 |
主分类号 |
F16J9/26 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
Hayward CA US |