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Controlled release delivery system by an osmotic bursting mechanism 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • A61M-007/00
  • B65D-035/08
출원번호 US-0539637 (1975-01-09)
발명자 / 주소
  • Baker Richard William (Bend OR)
출원인 / 주소
  • Bend Research Inc. (Bend OR 02)
인용정보 피인용 횟수 : 84  인용 특허 : 0

초록 ▼

An osmotic dispenser comprised of (1) a water permeable membrane forming part or all of the walls of an enclosure surrounding (2) an active agent, and in some cases (3) an additional compound known as an osmotic attractant which together exhibits an osmotic pressure against water. When placed in an

대표청구항 ▼

A water actuated osmatic type active agent dispenser including a means for dispensing a dosage of active agent into an aqueous fluid or humid environment comprising (1) a fluid permable membrane defining at least a part of a walled enclosure, said enclosure containing therein an active agent which e

이 특허를 인용한 특허 (84)

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