Title:
IMPLANTABLE OSMOTIC PUMP
Document Type and Number:
WIPO Patent Application WO2002085428
Kind Code:
A3
Abstract:
An implantable osmotic pump (100) for delivering a pharmaceutical agent to a patient includes an osmotic engiene (108), a substantially toroidal compartment disposed at least partially around the osmotic engine and a piston (162) disposed within the compartment. The osmotic engine (108) is configured to cause the piston (102) to travel within the compartment and deliver a dose pharmaceutical agent contained within the compartment when the pump (100) is implaned in an aqueous environment. A dose escalation assembly may be fitted to the pump (100), the dose escalation assembly being adapted to selectively increase the rate at which the pharmeceutical agent is delivered from the pump (100).
Inventors:
HARPER DEREK J
MILO CHARLES F
MILO CHARLES F
Application Number:
PCT/US2002/010425
Publication Date:
March 11, 2004
Filing Date:
April 03, 2002
Export Citation:
Assignee:
MICROSOLUTIONS INC (US)
International Classes:
A61K9/22; A61M5/142; A61M5/145; (IPC1-7): A61K9/22
Foreign References:
| US5728396A | 1998-03-17 | |||
| US3604417A | 1971-09-14 | |||
| US4865845A | 1989-09-12 | |||
| US6117125A | 2000-09-12 | |||
| US4379203A | 1983-04-05 |
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