A - Human Necessities – 61 – M
Patent
A - Human Necessities
61
M
A61M 31/00 (2006.01) A61K 9/00 (2006.01) A61M 37/00 (2006.01)
Patent
CA 2046445
ARC 1853 DELIVERY DEVICE WITH A PROTECTIVE SLEEVE ABSTRACT OF THE DISCLOSURE 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 [10] comprising a housing [11] enclosing an internal compartment [18], said housing having a first wall section [12a] that substantially restricts the passage of fluid into the delivery device [10], i.e. is substantially fluid-impermeable, and that contains a beneficial agent [20]; a second wall section [12b] that permits the passage of fluid into the delivery device [10], i.e. is fluid-permeable, and that contains at least one expandable driving member [25]; and exit means [13]; with a protective sleeve means [30] extending from the first wall section [12a] of the housing [11] to cover and protect the second wall section [12b] of the housing [11] and the junction of the first and second sections. The protective sleeve [30] is preferably configured to provide substantially no resistance to flow of fluid or fluid vapors through the fluid-permeable second wall section [12b].
Eckenhoff James B.
Magruder Judy A.
Peery John R.
Alza Corporation
Smart & Biggar
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