Appeal No. 94-1982
Application 07/862,665
DECISION ON APPEAL
This is an appeal from the final rejection of claims 18 through 25, all the claims
in the application.
Claim 21 is illustrative of the subject matter on appeal and reads as follows:
21. A method for administering a drug to the gastrointestinal tract of a warm-
blooded animal, which method comprises:
(a) admitting an osmotic device into the gastrointestinal tract of the warm-
blooded animal, said device comprising:
(1) a compartment;
(2) a wall that surrounds and forms the compartment, said wall
comprising a composition that is permeable to the passage of fluid;
(3) a first composition in the compartment, said first composition drug-
free for producing a drug-free interval prior to the administration of drug from the
compartment;
(4) a second composition in the compartment comprising a dose amount
of a drug for producing a therapeutic effect, said drug a member selected from the
group consisting of drugs that act on peripheral nerves, adrenergic receptors,
cholinergic receptors, nervous system, skeletal muscles, cardiovascular system,
smooth muscles, blood circulatory system, synaptic sites, neuroeffector junctional sites,
endocrine system, hormone systems, immunological system, reproductive system,
skeletal system, autocoid systems, alimentary systems, excretory systems, inhibitory of
autocoid systems, inhibitory of aptitudes and histamine systems of the warm-blooded
animal;
(5) a third composition in the compartment that expands in the presence
of fluid that enters the device; and
(6) exit means in the wall for connecting the exterior of the device with
the compartment;
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