[특허]Method and device for simultaneously transferring plural samples

Method and device for simultaneously transferring plural samples 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B01L-003/02
출원번호	US-0649431 (1991-02-01)
발명자 / 주소	Astle Thomas W. (607 Harborview Rd. Orange CT 06477)
인용정보	피인용 횟수 : 81 인용 특허 : 0

초록 ▼

In a preferred embodiment, a multiple sample transfer device which includes a plurality of hollow pistons disposed in a like number of cylindrical channels and connected to a moving plate to permit simultaneous movement of the pistons. At the lower end of each channel is a removable pipette tip. An apparatus is provided to bring a multiwell sample tray into operating engagement with the pipette tips. Flexible tubes are attached between the upper ends of the hollow pistons and a liquid reservoir. Clamping devices are provided to permit the selective pinching or opening of the tubes. When the tubes are pinched, the pistons can be used in either liquid-back-filled or air displacement modes to aspirate and dispense liquids from and to the sample tray. When the tubes are selectively sequentially pinched or open, aspiration and dispensing can be controlled by the timing of the pinching and the provision of vacuum or pressure in the liquid reservoir. All operations, including mounting and removal of the pipette tips, can be automatically controlled through use of a programmable computer.

대표청구항 ▼

A device for selectively dispensing or aspirating a plurality of liquid samples to or from a plurality of sample wells, comprising: (a) a plurality of parallel channel means having first and second ends lying in first and second common planes; (b) a plurality of hollow piston means having first and second ends, with said second ends thereof being disposed within said channel means for relative axial movement between said first and second ends of said channel means; (c) a plurality of fluid sealing means disposed between said piston means and said first ends of said channel means; (d) a plurality of pipette tips disposed at said second ends of said channel means; (e) a plurality of tube means having first and second ends, with said second ends thereof being operatively attached to said first ends of said piston means; (f) reservoir means to which said first ends of said tube means are attached; (g) flow stopping means disposed between said first and second ends of said tube means to selectively stop fluid flow through said tube means; (h) means operatively attached to said piston means to selectively simultaneously raise or lower said second ends of said piston means within said channel means; and (i) means to fill said device with liquid, so that at least said pipette tips, said channel means, said hollow piston means, and said tube means between said first ends of said piston means and said flow stopping means are substantially filled with said liquid; such that, when said device is so filled with liquid and said flow stopping means is operated to stop liquid flow through said tube means, raising or lowering said piston means within said channel means will aspirate liquid into or dispense liquid from said pipette tips; and said device further comprising: (j) means to selectively apply vacuum or pressure to said reservoir means; such that, when said flow stopping means is operated to permit fluid flow through said tube means, selectively applying vacuum or pressure to said reservoir means will aspirate liquid into or dispense liquid from said pipette tips.

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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

내보내기 구분	파일저장 인쇄 메일전송
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메일정보	받는사람 (필수) @ 보내는사람 (선택) @ 제목 내용 KISTI 검색결과 이메일 서비스
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연합인증

Method and device for simultaneously transferring plural samples 원문보기

초록 ▼

대표청구항 ▼

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Method and device for simultaneously transferring plural samples 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

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