Ruminant dispensing device
First Claim
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1. A delivery system for delivering a beneficial agent formulation to an environment of use, the delivery system comprising:
- (a) a wall surrounding and forming an internal compartment, the wall comprising in at least a part of composition permeable to the passage of fluid present in the environment of use;
(b) a beneficial agent in the compartment, said beneficial agent a member selected from the group consisting of antibloat, anthelmintics, antibiotic, anti-infectious, antiparasitic, antimicrobial and anti-flea beneficial agents;
(c) exit means in the wall for connecting the internal compartment with the exterior of the delivery system for delivering the beneficial agent to the environment of use;
(d) means in the compartment for occupying an increasing amount of area in the compartment for urging the beneficial agent through the exit means in the wall for delivering the beneifical agent over time; and
,(e) density means possessing a specific gravity greater than the specific gravity of fluid present in the environment of use present in means (d) for increasing the density of means (d).
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Abstract
A dispensing device is disclosed for delivering a beneficial agent. The device comprises (1) a housing defining an internal space, (2) an expandable composition comprising a dense member in the space, (3) a composition comprising a beneficial agent and a non-toxic heat responsive carrier in the space, and (4) a passageway in the housing for delivering the beneficial agent from the dispensing device.
62 Citations
9 Claims
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1. A delivery system for delivering a beneficial agent formulation to an environment of use, the delivery system comprising:
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(a) a wall surrounding and forming an internal compartment, the wall comprising in at least a part of composition permeable to the passage of fluid present in the environment of use; (b) a beneficial agent in the compartment, said beneficial agent a member selected from the group consisting of antibloat, anthelmintics, antibiotic, anti-infectious, antiparasitic, antimicrobial and anti-flea beneficial agents; (c) exit means in the wall for connecting the internal compartment with the exterior of the delivery system for delivering the beneficial agent to the environment of use; (d) means in the compartment for occupying an increasing amount of area in the compartment for urging the beneficial agent through the exit means in the wall for delivering the beneifical agent over time; and
,(e) density means possessing a specific gravity greater than the specific gravity of fluid present in the environment of use present in means (d) for increasing the density of means (d). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification