Dispenser comprising capsule with volume displacing member

Details Dispenser comprising capsule with volume displacing member Dispenser comprising capsule with volume displacing member

1986-02-13

1987-07-07

Rosenbaum, C. Fred

Surgery

Controlled release therapeutic device or system

Osmotic or diffusion pumped device or system

604893, A61K 922

Patent

active

046784675

ABSTRACT:
A dispenser is disclosed for delivering a beneficial agent to an environment of use. The dispenser comprises a semipermeable wall surrounding a compartment containing a heat responsive composition, and an expandable composition. A passageway in the wall connects the compartment with the exterior of the dispenser.

REFERENCES:
patent: 3845770 (1974-11-01), Theeuwes et al.
patent: 3916899 (1975-11-01), Theeuwes et al.
patent: 4014334 (1977-03-01), Theeuwes et al.
patent: 4160452 (1979-07-01), Theeuwes
patent: 4200098 (1980-04-01), Ayer et al.
patent: 4285987 (1981-08-01), Ayer et al.
patent: 4327725 (1982-05-01), Cortese et al.

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