Osmotic device within an osmotic device
AssigneeOsmotica Corp.
InventorsJoaquina Faour, Marcelo A. Coppari
Life of this patent
Estimating the term…
Abstract
The delivery devices described herein are capable of delivering one or more active substances by osmotic pumping through preformed passageways. An osmotic device according to the invention includes a first osmotic device enclosed within a second osmotic device. In some embodiments, the semipermeable membrane of one or both of the osmotic devices completely dissolves or degrades during use. This delivery device can include an immediate release outer coat.
Claims55
A dual osmotic device comprising a first osmotic device enclosed within a second osmotic device, wherein:
- the first osmotic device comprises an active agent-containing composition enclosed within a first semipermeable membrane having at least one passageway for release of active agent from the core;
- and
- the second osmotic device comprises an active agent-containing composition enclosing the first semipermeable membrane and being enclosed within a second semipermeable membrane having at least one passageway for release of active agent from the dual osmotic device.
An active agent delivery device comprising:
- a first osmotic device comprising a core comprising a first active agent, at least one pharmaceutical excipient and a first osmagent;
- a first semipermeable membrane surrounding the core;
- and at least one first passageway in the first semipermeable membrane;
- and
- a second osmotic device enclosing the first osmotic device and comprising an active agent coat surrounding the first semipermeable membrane and comprising a second active agent, at least one pharmaceutical excipient and a second osmagent;
- a second semipermeable membrane surrounding the active agent coat;
- and at least one second passageway in the second semipermeable membrane.
A dual osmotic device comprising:
- a first osmotic device comprising a first active agent-containing composition enclosed within a first membrane having at least one passageway there through;
- and
- a second osmotic device comprising a second active agent-containing composition enclosing the first membrane and being enclosed within a second membrane having at least one passageway there through;
- wherein the first and second active agents are released in a controlled manner.
Dependencies are inferred from the claim text.