05234693 is referenced by 170 patents and cites 33 patents.

This invention relates to an active agent delivery device. More particularly, the invention relates to a delivery device that includes a sleeve to protect the delivery device from transient mechanical forces. The delivery device of the invention is robust and resistant to transient mechanical forces. The invention provides a fluid-imbibing delivery device comprising a housing enclosing an internal compartment, said housing having a first wall section that substantially restricts the passage of fluid into the delivery device, i.e. is substantially fluidimpermeable, and that contains a beneficial agent; a second wall section that permits the passage of fluid into the delivery device, i.e. is fluid-permeable, and that contains at least one expandable driving member; and exit means; with a protective sleeve means extending from the first wall section of the housing to cover and protect the second wall section of the housing and the junction of the first and second sections. The protective sleeve is preferably configured to provide substantially no resistance to flow of fluid vapor through the fluid-permeable second wall section.

Title
Delivery device with a protective sleeve
Application Number
551720
Publication Number
5234693
Application Date
September 2, 1992
Publication Date
August 10, 1993
Inventor
James B Eckenhoff
Los Altos
CA, US
John R Peery
Palo Alto
CA, US
Judy A Magruder
Mountain View
CA, US
Agent
Edward L Mandell
Steven F Stone
Jacqueline S Larson
Assignee
Alza Corporation
CA, US
IPC
A61K 9/24
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