|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||222/187 ; 222/386.5 ; 222/394 ; 222/396|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 49 인용 특허 : 13|
Gas is generated at a controlled rate from a liquid and solid phase combination that generated gas upon contact, by using diffusive transport of the liquid toward the solid phase surface to prolong the rate of gas generation, with a variety of alternatives for controlling the rate of diffusive transport. This system is useful in infusion devices for delivering medications or other beneficial liquids from a retaining pouch at controlled rates over a prolonged period of time.
[ We claim:] [1.] An article of manufacture comprising:a solid substance;a liquid-retaining receptacle for retaining a liquid substance which upon contact with said solid substance generates a gaseous product, said liquid-retaining receptacle permitting contact of said liquid substance with said solid substance through diffusive transport of said liquid substance, said solid substance being external of said liquid-retaining receptacle and separated from the interior thereof by a receptacle wall having a passage therethrough; anda wick in contact with sai...