Delivery system for controlled administration of beneficial agent to ruminants
Номер патента: CA1221587A
Опубликовано: 12-05-1987
Автор(ы): Felix A. Landrau, James B. Eckenhoff, Richard Cortese
Принадлежит: Alza Corp
Опубликовано: 12-05-1987
Автор(ы): Felix A. Landrau, James B. Eckenhoff, Richard Cortese
Принадлежит: Alza Corp
Реферат: ABSTRACT OF THE INVENTION A dispensing device is disclosed for delivering a beneficial agent. The device comprises (1) a semipermeable housing defining an internal space, (2) a dense member in the space, (3) a heat responsive composition containing a beneficial agent in the space, (4) an expandable member in the space, and (5) a passageway in the semipermeable housing for delivering the beneficial agent from the dispensing device.
Delivery system comprising means for controlling internal pressure
Номер патента: CA2563972C. Автор: James B. Eckenhoff,John R. Peery,Jeremy C. Wright,Frederick H. Maruyama. Владелец: Alza Corp. Дата публикации: 2009-03-17.