[특허]Gas pressure driven infusion system by hydrogel electrolysis

Gas pressure driven infusion system by hydrogel electrolysis 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	A61M-001/30
출원번호	US-0018937 (1993-02-17)
발명자 / 주소	Bae You H. (Salt Lake City UT) Kwon Ick C. (Salt Lake City UT)
출원인 / 주소	Insutech, Inc. (Salt Lake City UT 02)
인용정보	피인용 횟수 : 88 인용 특허 : 0

초록 ▼

A drug delivery device is described which utilizes gas pressure from free oxygen and hydrogen derived from the electrolysis of water at the electrodes in negatively charged polymeric hydrogels by electro-osmosis. The gas pressure forces the infusion of the drugs through appropriate means into the body. The rate of electrolysis which produces the oxygen and hydrogen is controlled by an electric current. Therefore the rate of drug delivery can be predetermined and precisely controlled. The current is activated and controlled by an electronic timer or a biomedical control system. The negatively charged hydrogel polymers have mechanical strength and rigidity and allow water to flow through the polymer network toward the cathode ensuring a continuous water supply to the electrodes inside the hydrogel system by electro-osmosis. The hydrogels may be recharged (reswollen) with water or simply replaced. Because the containment of water within the hydrogel structure is not position dependent, gravity plays no part in the gel location within the gas generation unit as in prior art units. Therefore, the contact between the electrodes and water for purposes of electrolysis is position independent.

대표청구항 ▼

A gas driven drug delivery device for dispensing a liquid drug at a predetermined rate, which comprises (a) a gas generation unit for producing oxygen and hydrogen gases by the electrolysis of water comprising a housing having affixed therein a solid water swollen negatively charged polymeric hydrogel possessing strength and rigidity, electrodes inserted into said water swollen negatively charged hydrogel and extending outwardly of said housing and means attached to said electrodes outwardly of said housing for applying an electric current to said electrodes said electrodes being positioned in said hydrogel such that oxygen and hydrogen produced will migrate out of said hydrogel along said electrodes; (b) a non-expandable fluid container comprising a variable volume gas compartment and a variable volume drug delivery reservoir said compartment and reservoir being separated by a fluid tight septum the position of which determines the volume of said gas compartment and drug delivery reservoir, said gas compartment being in sealed fluid communication with said gas generation unit for receiving oxygen and hydrogen produced at said electrodes under pressure and said drug delivery reservoir having an outlet passageway; and (c) delivery means communicating with said outlet passageway in said drug delivery reservoir for receiving displaced drug solution from said reservoir and directing said solution into the body of a patient.

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A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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연합인증

Gas pressure driven infusion system by hydrogel electrolysis 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

이 특허를 인용한 특허 (88)

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연합인증

Gas pressure driven infusion system by hydrogel electrolysis 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

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이 특허를 인용한 특허 (88)

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