초록 ▼

A dispenser is disclosed for delivering a beneficial agent formulation to a warm, fluid environment of use. The dispenser comprises an outer semipermeable wall surrounding and laminating an inner hydrophilic, swellable wall. The walls define an interior space for containing a thermo-responsive benef

A dispenser is disclosed for delivering a beneficial agent formulation to a warm, fluid environment of use. The dispenser comprises an outer semipermeable wall surrounding and laminating an inner hydrophilic, swellable wall. The walls define an interior space for containing a thermo-responsive beneficial agent formulation. A passageway through the semipermeable wall connects the exterior of the dispenser through an opening in the inside wall with the interior of the dispenser.

대표청구항 ▼

A dispenser for delivering a beneficial agent formulation to an environment of use, wherein the dispenser comprises: (a) a compartment; (b) a beneficial agent formulation in the compartment, which formulation comprises: (i) a beneficial agent; and, (ii) a thermoplastic, lipophilic means for deliveri

A dispenser for delivering a beneficial agent formulation to an environment of use, wherein the dispenser comprises: (a) a compartment; (b) a beneficial agent formulation in the compartment, which formulation comprises: (i) a beneficial agent; and, (ii) a thermoplastic, lipophilic means for delivering the beneficial agent from the compartment, said means stable up to 33°C. and absorbing heat from the environment of use above 33°C. thereby forming a deliverable formulation comprising the beneficial agent; (c) a first wall that surrounds at least in part the compartment, said wall comprising hydrophilic means for absorbing fluid from the environment of use for expanding the wall into the compartment; (d) a second wall that surrounds the first wall, which second wall comprises at least in part semipermeable means for permitting the passage of fluid through the second wall; and, (e) at least one passageway in the second wall communicating with the compartment for delivering the beneficial agent from the dispenser.