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公开(公告)号：US20150050186A1
公开(公告)日：2015-02-19
申请号：US14530858
申请日：2014-11-03
Applicant: Roche Diagnostics Operations, Inc.
Inventor： Stefan Borja Bammesberger , Sabrina Kartmann , Peter Koltay , Klaus Mutschler , Juergen Spinke , Laurent Tanguy
CPC classification number: B01L3/567 , B01L3/0265 , B01L3/52 , B01L2300/0838 , B01L2400/0666 , F16K99/0005 , F16K99/0042 , F16K2099/0084 , G01N35/0099 , G01N35/1002 , G01N35/1016 , G01N2035/1034
Abstract: A valve for dispensing a fluid comprising a dry portion and a wet portion is presented. Only the wet portion is contacted by the fluid. The wet portion comprises a fluid dispenser unit having a inlet opening, a capillary nozzle providing a fluid outlet, a cavity, the capillary nozzle having an end within the cavity, and a plunger. The plunger moves within the cavity into an opening position allowing an inflow of the fluid through the inlet opening through the cavity and an outflow of the fluid through the capillary nozzle. The plunger has a sealing surface directed towards the end of the capillary nozzle. The plunger moves into a closing position for sealing the end of the capillary nozzle with the sealing surface. The dry portion comprises a closing component for exercising a magnetic closing force onto the plunger for attracting the plunger into the closing position.
Abstract translation: 提出了一种用于分配包括干燥部分和湿部分的流体的阀。 只有湿部分被流体接触。 湿部分包括具有入口开口的流体分配器单元，提供流体出口的毛细管嘴，空腔，毛细管喷嘴在腔内具有一端，以及柱塞。 柱塞在空腔内移动到打开位置，允许流体通过入口通过空腔流入，流体通过毛细管喷嘴流出。 柱塞具有指向毛细管喷嘴端部的密封表面。 柱塞移动到关闭位置，以用密封表面密封毛细管嘴的端部。 所述干燥部分包括关闭部件，用于对所述柱塞施加磁力关闭力，以将所述柱塞吸引到所述关闭位置。
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公开(公告)号：US10252273B2
公开(公告)日：2019-04-09
申请号：US14530858
申请日：2014-11-03
Applicant: Roche Diagnostics Operations, Inc.
Inventor： Stefan Borja Bammesberger , Sabrina Kartmann , Peter Koltay , Klaus Mutschler , Juergen Spinke , Laurent Tanguy
Abstract: A valve for dispensing a fluid comprising a dry portion and a wet portion is presented. Only the wet portion is contacted by the fluid. The wet portion comprises a fluid dispenser unit having a inlet opening, a capillary nozzle providing a fluid outlet, a cavity, the capillary nozzle having an end within the cavity, and a plunger. The plunger moves within the cavity into an opening position allowing an inflow of the fluid through the inlet opening through the cavity and an outflow of the fluid through the capillary nozzle. The plunger has a sealing surface directed towards the end of the capillary nozzle. The plunger moves into a closing position for sealing the end of the capillary nozzle with the sealing surface. The dry portion comprises a closing component for exercising a magnetic closing force onto the plunger for attracting the plunger into the closing position.
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