[특허]Microparticle sorting device and method of optimizing fluid stream therein

Microparticle sorting device and method of optimizing fluid stream therein 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G01N-015/14 G03G-007/00 G06T-007/00 B03C-007/00 B03C-007/12 B07C-005/02 B07C-005/344
출원번호	US-0737370 (2015-06-11)
등록번호	US-10132735 (2018-11-20)
우선권정보	JP-2012-080609 (2012-03-30)
발명자 / 주소	Muraki, Yosuke
출원인 / 주소	Sony Corporation
대리인 / 주소	Wolf, Greenfield & Sacks, P.C.
인용정보	피인용 횟수 : 0 인용 특허 : 50

초록 ▼

There is provided a microparticle sorting device that automatically optimizes a fluid stream. There is provided a microparticle sorting device that includes a voltage supply unit that supplies a driving voltage to a vibratory element that applies vibration to an orifice that produces a fluid stream, a charge unit that imparts charge to at least some droplets ejected from the orifice, deflecting plates, arranged opposing each other with the fluid stream S therebetween, that vary a travel direction of the droplets, and a first image sensor that acquires an image of the droplets passing between the deflecting plates. The microparticle sorting device is equipped with a controller that detects the droplets in the image, sets a standard band corresponding to a width of the droplets before imparting the charge, and controls the driving voltage of the voltage supply unit so as to further decrease a quantity of the droplets detected in areas within a designated number of pixels from the standard band from among the droplets after imparting the charge.

대표청구항 ▼

1. A microparticle sorting device comprising: a voltage supply unit that supplies a driving voltage to a vibratory element that applies vibration to an orifice that produces a fluid stream;an image sensor that acquires an image of droplets ejected from the orifice at a position where fluid exiting the orifice breaks into droplets; anda controller configured to control the driving voltage based on a length of a satellite droplet positioned between the fluid and a microparticle-containing droplet immediately after dividing off from the fluid, and a distance between the microparticle-containing droplet and the fluid. 2. The microparticle sorting device according to claim 1, wherein the controller controls the driving voltage such that the length along the travel direction becomes a designated length in the image. 3. The microparticle sorting device according to claim 2, wherein the designated length is 30% to 70% of the distance between the microparticle-containing droplet and the fluid. 4. The microparticle sorting device according to claim 1, wherein the orifice is formed on a replaceable microchip. 5. A method of optimizing a fluid stream in a microparticle sorting device, comprising: acquiring an image of droplets ejected from an orifice to which vibration is applied by a vibratory element at a position where fluid exiting the orifice breaks into droplets; andcontrolling a driving voltage of the vibratory element based on a length of a satellite droplet positioned between the fluid and a microparticle-containing droplet immediately after dividing off from the fluid, and a distance between the microparticle-containing droplet and the fluid. 6. The method of optimizing a fluid stream according to claim 5, wherein controlling the driving voltage includes controlling the driving voltage such that the length along the travel direction becomes a designated length in the image. 7. The method of optimizing a fluid stream according to claim 6, wherein the designated length is 30% to 70% of the distance between the microparticle-containing droplet and the fluid. 8. The method of optimizing a fluid stream according to claim 5, wherein the orifice is formed on a replaceable microchip. 9. The method of optimizing a fluid stream according to claim 5, wherein acquiring an image of droplets comprises acquiring a plurality of images of droplets with different driving voltages and wherein controlling the driving voltage comprises selecting the driving voltage for which a ratio of the length along the travel direction to the distance between the microparticle containing droplet and the fluid is in a prescribed range, and applying the selected driving voltage to the vibratory element.

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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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Microparticle sorting device and method of optimizing fluid stream therein 원문보기

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Microparticle sorting device and method of optimizing fluid stream therein 원문보기

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