Delivery system comprising fluid ingress and drug egress
First Claim
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1. A dispenser for storing and protecting a beneficial agent and for dispensing the beneficial agent to a fluid environment of use, the dispenser comprising:
- (a) a wall defining a housing, said housing comprising a first wall member and a second wall member;
wherein the,(b) first wall member (1) surrounds an internal space for storing a beneficial agent;
(2) comprises a wall forming composition comprising means for protecting the beneficial agent by substantially limiting the passage of fluid into the dispenser; and
(3) comprises means for forming the dispenser with a second wall member; and
wherein the,(c) second wall member (1) surrounds an internal space, (2) comprises a compositional means for permitting fluid to enter the dispenser; and
, (3) comprises means for forming dispenser with the first wall member;
(d) 5 nanograms to 20 grams of a beneficial agent in the internal space for storing and for protecting the beneficial agent;
(e) means in the internal space that permits fluid to enter the dispenser for aiding in delivering the beneficial agent from the dispenser; and
,(f) exit means in the dispenser for delivering a dose of the beneficial agent from the dispenser to the environment over time.
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Abstract
A delivery system is disclosed for delivering a beneficial agent to an animal. The delivery system comprises a wall that surrounds a lumen, said wall comprising a composition that limits the passage of fluid into the system and a composition that permits the passage of fluid into the system. The lumen comprises a beneficial agent and an expandable member. The delivery system comprises an exit means for delivering the beneficial agent.
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Citations
3 Claims
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1. A dispenser for storing and protecting a beneficial agent and for dispensing the beneficial agent to a fluid environment of use, the dispenser comprising:
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(a) a wall defining a housing, said housing comprising a first wall member and a second wall member;
wherein the,(b) first wall member (1) surrounds an internal space for storing a beneficial agent;
(2) comprises a wall forming composition comprising means for protecting the beneficial agent by substantially limiting the passage of fluid into the dispenser; and
(3) comprises means for forming the dispenser with a second wall member; and
wherein the,(c) second wall member (1) surrounds an internal space, (2) comprises a compositional means for permitting fluid to enter the dispenser; and
, (3) comprises means for forming dispenser with the first wall member;(d) 5 nanograms to 20 grams of a beneficial agent in the internal space for storing and for protecting the beneficial agent; (e) means in the internal space that permits fluid to enter the dispenser for aiding in delivering the beneficial agent from the dispenser; and
,(f) exit means in the dispenser for delivering a dose of the beneficial agent from the dispenser to the environment over time. - View Dependent Claims (2, 3)
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Specification