公开(公告)号：US10197189B2

公开(公告)日：2019-02-05

申请号：US14289298

申请日：2014-05-28

Applicant: STMicroelectronics S.r.l.

Inventor： Marco Pugliese ,  Francesco Ferrara

IPC: B01L3/00 ,  F16K99/00

Abstract: A microfluidic valve includes: a first structural layer and a second structural layer; a microfluidic circuit having a first microfluidic conduit and a second microfluidic conduit, which are defined in a superficial portion of the first structural layer, are adjacent, and are separated by a wall; a membrane set between the first structural layer and the second structural layer and delimiting the microfluidic circuit on one side; and a recess containing a gaseous fluid in the second structural layer. The membrane is movable in response to an actuation stimulus between a closed position, in which the first and second microfluidic conduits are fluidly decoupled, and an open position, in which the membrane is at least in part retracted into the recess and the first and second microfluidic conduits are fluidly coupled by means of a fluidic passage defined between the wall and the membrane.

公开(公告)号：US20140352819A1

公开(公告)日：2014-12-04

申请号：US14289298

申请日：2014-05-28

Applicant: STMicroelectronics S.r.l.

Inventor： Marco Pugliese ,  Francesco Ferrara

IPC: F16K99/00

CPC classification number: F16K99/0053 ,  B01L3/502738 ,  B01L2200/12 ,  B01L2300/0816 ,  B01L2300/0874 ,  B01L2300/0887 ,  B01L2400/043 ,  B01L2400/0487 ,  B01L2400/0638 ,  B01L2400/0655 ,  F16K99/0003 ,  F16K99/0015 ,  F16K99/0026 ,  F16K99/0046 ,  F16K2099/008 ,  F16K2099/0084 ,  F16K2099/0092 ,  Y10T137/85978

Abstract: A microfluidic valve includes: a first structural layer and a second structural layer; a microfluidic circuit having a first microfluidic conduit and a second microfluidic conduit, which are defined in a superficial portion of the first structural layer, are adjacent, and are separated by a wall; a membrane set between the first structural layer and the second structural layer and delimiting the microfluidic circuit on one side; and a recess containing a gaseous fluid in the second structural layer. The membrane is movable in response to an actuation stimulus between a closed position, in which the first and second microfluidic conduits are fluidly decoupled, and an open position, in which the membrane is at least in part retracted into the recess and the first and second microfluidic conduits are fluidly coupled by means of a fluidic passage defined between the wall and the membrane.

Abstract translation: 微流体阀包括：第一结构层和第二结构层; 具有第一微流体管道和第二微流体管道的微流体回路限定在第一结构层的表面部分中，并且由壁分隔开; 在第一结构层和第二结构层之间设置膜并在一侧限定微流体电路; 以及在所述第二结构层中含有气态流体的凹部。 膜可以响应于在第一和第二微流体管道被流体分离的关闭位置和打开位置之间的致动刺激而移动，其中膜至少部分地缩回到凹部中，并且第一和第二 微流体导管通过限定在壁和膜之间的流体通道流体耦合。