Dispenser constructed with semipermeable polymer-hydrophilic pol

Details Dispenser constructed with semipermeable polymer-hydrophilic pol Dispenser constructed with semipermeable polymer-hydrophilic pol

1982-09-27

1984-06-19

Rosenbaum, C. Fred

Surgery

Controlled release therapeutic device or system

Osmotic or diffusion pumped device or system

604891, A61M 700

Patent

active

044551444

ABSTRACT:
A dispenser is disclosed comprising a housing formed of a semipermeable polymer having a hydrophilic polymer grafted thereto. The housing surrounds a container made of an elastomeric material and the container has an outlet through the housing to the exterior of the dispenser.

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patent: 4105033 (1978-08-01), Chatterjee et al.
patent: 4116241 (1978-09-01), Theeuwes et al.
patent: 4180073 (1979-12-01), Michaels
patent: 4203440 (1980-05-01), Theeuwes
patent: 4203441 (1980-05-01), Theeuwes
patent: 4304232 (1981-12-01), Michaels

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