[특허]Apparatus and method for droplet steering

[미국특허] Apparatus and method for droplet steering 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B05B-001/28
출원번호	US-0006489 (2001-12-06)
발명자 / 주소	Williams, Roger O. Van Tuyl, Michael Forbush, Michael
출원인 / 주소	EDC Biosystems, Inc.
대리인 / 주소	Morrison &
인용정보	피인용 횟수 : 22 인용 특허 : 63

초록 ▼

An apparatus and method for droplet steering is disclosed herein. A throated structure having a nozzle defines a converging throat with an inlet and an outlet and a vectored fluid stream directed therethrough. The fluid stream is driven through the system via a vacuum pump. As the fluid approaches the outlet, its velocity increases and is drawn away from the nozzle through a connecting channel. As a droplet is ejected from a liquid therebelow, it will have a first trajectory until it is introduced to the high velocity fluid stream at the perimeter of the interior walls of the nozzle. The fluid accordingly steers the momentum of the droplet such that it obtains a second or corrected trajectory. Alternative variations include an electrically chargeable member, e.g., a pin, positionable to be in apposition to the outlet and capillary tubes for controlling the ejection surface of the pool of source fluid.

대표청구항 ▼

1. A device for altering a trajectory of a droplet comprising:a throated structure having a nozzle defined therethrough with an entrance port at a proximal end of the nozzle and an exit port at a distal end of the nozzle;wherein the throated structure further defines at least one channel in fluid communication with the nozzle for receiving a flow of fluid such that the trajectory of the droplet entering the entrance port is alterable by the flow of fluid to a predetermined path as the droplet passes through the exit port;wherein the distal end of the structure is cylindrically uniform in shape; andwherein the cylindrically uniform distal end of the structure is 0.5?1 mm in length.2. A device for altering a trajectory of a droplet comprising:a throated structure having a nozzle defined therethrough with an entrance port at a proximal end of the nozzle and an exit port at a distal end of the nozzle;wherein the throated structure further defines at least one channel in fluid communication with the nozzle for receiving a flow of fluid such that the trajectory of the droplet entering the entrance port is alterable by the flow of fluid to a predetermined path as the droplet passes through the exit port; andwherein the throated structure is 1?150 mm in length.3. A device for altering a trajectory of a droplet comprising:a throated structure having a nozzle defined therethrough with an entrance port at a proximal end of the nozzle and an exit port at a distal end of the nozzle;wherein the throated structure further defines at least one channel in fluid communication with the nozzle for receiving a flow of fluid such that the trajectory of the droplet entering the entrance port is alterable by the flow of fluid to a predetermined path as the droplet passes through the exit port; andwherein the throated structure is attached to a movable platform configured to translate the throated structure in a planar direction relative to a wellplate disposed adjacently to the proximal end of the nozzle.4. The device of claim 3 wherein the movable platform is configured to translate the throated structure in a planar direction over a distance of at least 2 mm.5. The device of claim 3 wherein the movable platform is further configured to rotate the throated structure about a point centrally defined within the throated structure such that the proximal end of the nozzle is angularly disposable relative to the wellplate.6. A device for altering a trajectory of a droplet comprising:a plate having a first surface and a second surface, wherein the plate defines a plurality of throated nozzles therein, each nozzle having an entrance port defined in the first surface and an exit port defined in the second surface;at least one channel defined within the device for receiving a flow of fluid therethrough, the channel being in fluid communication with and common to each nozzle such that the trajectory of a droplet entering the entrance port of any nozzle is alterable by the flow of fluid to a predetermined path as the droplet passes through the exit port; andwherein the channel through which the fluid flows is defined between a well mask and the first surface, the well mask defining a plurality of orifices each located adjacent to a corresponding entrance port in the first surface.7. The device of claim 6 wherein each orifice has a preconfigured diameter adapted to prevent the fluid from passing turbulently therethrough.8. The device of claim 6 wherein each orifice is defined through a capillary tube extending from a surface of the well mask, each of the capillary tubes being adapted for insertion into a reservoir of liquid from which the droplet is ejected.

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[미국특허] Apparatus and method for droplet steering 원문보기

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