[특허]Infusion apparatus

Infusion apparatus 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	A61M-001/00
출원번호	US-0039031 (1993-05-20)
우선권정보	JP-0224743 (1991-08-09); JP-0224744 (1991-08-09); JP-0224750 (1991-08-09)
국제출원번호	PCT/JP92/01025
§371/§102 date	1993May2 (1993May2)
발명자 / 주소	Kawasaki Tatsuro (Miyazaki JPX) Yamashita Yoshishige (Kuki JPX) Matsubara Kazuo (Tokyo JPX)
출원인 / 주소	Atom Kabushiki Kaisha (Tokyo JPX 03)
인용정보	피인용 횟수 : 78 인용 특허 : 0

초록 ▼

Infusion apparatus is provided for discriminating the specifications of syringes of any manufacturer, setting alarm levels corresponding to contained liquid solutions having various viscosities, and obtaining a net pressure for infusion from the force to a plunger by considering pressure loss dependent on a friction factor between the barrel and the plunger of the syringe. Syringe diameter is detected digitally to determine a capacity signal. The plunger force is detected by a pressure sensor and then A/D converted to a digital pressure signal. Specifications of syringes of manufacturers based on the syringe capacity signal are compared with the signals of the mounted syringe to select one among operation programs corresponding to their syringe specifications. A Dip switch selects a group of the operation programs for manufacturers. The digital pressure signal from the pressure converter is input to a comparator through a subtracter cooperating with a pressure loss constant table to compare outputs from a supremum constant table indicating the needle for the infusion solution is correctly injected into the blood vessel or muscle of the patient. A pressure loss is subtracted from the force detected based on the friction factor and the output from the pressure converter produces a value corresponding to the net pressure.

대표청구항 ▼

An infusion apparatus comprising: a syringe for storing a medicinal liquid solution between a barrel and a movable plunger; means for mounting said barrel on said infusion apparatus; driving means for pushing said plunger in said barrel at a predetermined speed; a pressure sensor for detecting the force on said plunger to provide an analogue signal; a pressure converter for receiving and A/D converting said analogue signal to a digital pressure signal; a comparator having inputs capable of receiving said digital pressure signal from said pressure converter; a supremum limit constant table having data outputs connected to other inputs of said comparator; and a selection switch for selecting a supremum limit value output from said supremum limit constant table.

이 특허를 인용한 특허 (78)

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Trocki, Mark; Hitchins, Mark W.; Cowan, Kevin P.; Rhinehart, Edward J., Front-loading medical injector adapted to releasably engage a syringe regardless of the orientation of the syringe with respect to the injector.
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David M. Reilly ; Joseph B. Havrilla ; Eugene A. Gelblum ; Daniel Kazousky, Front-loading medical injector and syringe for use therewith.
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David M. Reilly ; Joseph B. Havrilla ; Eugene A. Gelblum ; Daniel Kazousky, Front-loading medical injector and syringe for use therewith.
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Trocki, Mark; Hitchins, Mark W.; Cowan, Kevin P.; Dedig, James A.; Sciulli, Francis J.; Rygg, Steven C.; Fuchs, Larry J.; Rhinehart, Edward J.; Parks, Robert D., Front-loading medical injector and syringes, syringe interfaces, syringe adapters and syringe plungers for use therewith.
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Trocki, Mark; Hitchins, Mark W.; Cowan, Kevin P.; Rhinehart, Edward J., Front-loading syringe adapted to releasably engage a medical injector regardless of the orientation of the syringe with respect to the injector.
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Fago, Frank M; Neer, Charles, Injector.
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Reilly, David M., Injector providing drive member advancement and engagement with syringe plunger, and method of connecting a syringe to an injector.
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Reilly,David M., Injector system including an injector drive member that automatically advances and engages a syringe plunger.
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Tai, Yu-Chong; Humayun, Mark; Shih, Jason, MEMS device and method for delivery of therapeutic agents.
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Cowan, Kevin P.; Haury, John A., Medical injector system.
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Strobl, Geoffrey S., Syringe mount for a medical fluid injector.
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David M. Reilly ; Joseph B. Havrilla ; Eugene A. Gelblum ; Daniel Kazousky, System and method for providing information from a syringe to an injector.
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Reilly, David M.; Havrilla, Joseph B.; Gelblum, Eugene A.; Kazousky, Daniel, System and method for providing information from a syringe to an injector.
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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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연합인증

Infusion apparatus 원문보기

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Infusion apparatus 원문보기

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이 특허를 인용한 특허 (78)

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