Method of making controlled release devices

Details Method of making controlled release devices Method of making controlled release devices

1997-02-21

1998-08-04

Brouillette, D. Gabrielle

Drug, bio-affecting and body treating compositions

Preparations characterized by special physical form

Implant or insert

424424, 424425, 424430, 424432, A61F 1300

Patent

active

057889775

ABSTRACT:
A process is disclosed for making devices which release active material, e.g. a drug, at a controlled rate, which device comprises a closed container and the active material. The device is made by first making a hollow envelope, e.g. by extrusion or moulding, followed by introducing the active material into the void of the envelope. The device may have a ring or cylindrical form.

REFERENCES:
patent: 4300557 (1981-11-01), Refojo et al.
patent: 4304226 (1981-12-01), Drobish et al.
patent: 4888074 (1989-12-01), Pocknell
patent: 5614212 (1997-03-01), D'Angelo

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