[특허]Intravenous fluid temperature regulation method and apparatus

Intravenous fluid temperature regulation method and apparatus 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	A61F-007/12
출원번호	US-0626626 (1990-12-12)
발명자 / 주소	Swenson Charles A. (Spring TX)
출원인 / 주소	Houston Advanced Research Center (The Woodlands TX 02)
인용정보	피인용 횟수 : 89 인용 특허 : 0

초록 ▼

An apparatus for thermal regulation, or temperature control of intravenous fluid. The apparatus includes four subassemblies to control intravenous fluid temperature during rapid time varying fluctuations in fluid flow rates independent of ambient air temperature and initial fluid temperature. The first subassembly is an intravenous infusion subassembly containing a fluid reservoir, flexible tubing and a syringe for injecting fluid into a human. The second subassembly is a disposable heat exchange subassembly containing a wire heat exchanger and temperature and flow sensors. The heat exchanger is fabricated into the flexible tubing of the infusion subassembly. The third subassembly is a controller subassembly including a microprocessor system to control the heat exchange subassembly and power supplies. The fourth subassembly is the power supply subassembly which uses a variable voltage DC power supply to reduce low level 60 Hertz artifact signals that interfere with electronic monitoring systems such as the electrocardiogram.

대표청구항 ▼

A device for controlling the temperature of intravenous fluids as they enter the human body comprising: (a) an intravenous infusion assembly; (b) a heat exchange assembly removably mounted to said intravenous infusion assembly, wherein said heat exchange assembly comprises: (i) one or more heat exchangers; (ii) one or more fluid temperature sensors; (iii) one or more fluid flow sensors; and (iv) a control signal wire bundle; (c) a controller, said controller being functionally attached to said intravenous infusion assembly and to said heat exchange assembly; wherein said controller includes the use of a flow feedback algorithm comprising: [Figure] where Tset is the set point temperature, T0 is the initial fluid temperature in °C., Cs is the heat capacity of the IV solution, F is the IV fluid flow in (ml/sec), e2 is the time derivative of the final fluid temperature T2, and a

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IPC	Description
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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Intravenous fluid temperature regulation method and apparatus 원문보기

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Intravenous fluid temperature regulation method and apparatus 원문보기

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