公开(公告)号：US20190210025A1

公开(公告)日：2019-07-11

申请号：US16099172

申请日：2016-07-26

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Chantelle DOMINGUE ,  Tod WOODFORD ,  Manish GIRI ,  Matthew David SMITH ,  George H CORRIGAN III ,  Masoud ZAVAREHI ,  Joshua M. YU

IPC: B01L3/00 ,  G01N15/10

CPC classification number: B01L3/502761 ,  B01L3/502715 ,  B01L3/5085 ,  B01L2200/0652 ,  B01L2300/0645 ,  B01L2300/0864 ,  B01L2400/043 ,  B01L2400/0439 ,  B01L2400/0442 ,  G01N15/1031 ,  G01N15/1056 ,  G01N35/1065 ,  G01N2015/1006 ,  G01N2015/1062 ,  G01N2015/1081

Abstract: According to an example, a microfluidic apparatus may include a fluid slot and a foyer that is in fluid communication with the fluid slot via a channel having a relatively smaller width than the foyer. The microfluidic apparatus may also include an electrical sensor to measure a change in an electrical field caused by a particle of interest in a fluid passing through the channel from the fluid slot to the foyer, an actuator to apply pressure onto fluid contained in the foyer, and a controller to receive the measured change in the electrical field from the electrical sensor, determine, from the received change in the electrical field, an electrical signature of the particle of interest, and control the actuator to control movement of the particle of interest based upon the determined electrical signature of the particle of interest.

公开(公告)号：US20190151848A1

公开(公告)日：2019-05-23

申请号：US16099658

申请日：2016-07-26

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Jeffrey A NIELSEN ,  Manish GIRI ,  Chantelle DOMINGUE ,  Kenneth WARD ,  Christie DUDENHOEFER ,  Matthew David SMITH ,  Joshua M. YU ,  Hilary ELY

IPC: B01L3/00 ,  G01N15/10 ,  G01N15/14

Abstract: According to an example, a microfluidic apparatus may include a fluid slot, a foyer in fluid communication with the fluid slot via a channel having a relatively smaller width than the foyer, a sensor to detect a presence of a particle of interest in a fluid passing through the channel, a nozzle in fluid communication with the foyer, and an actuator positioned in line with the nozzle. The microfluidic apparatus may also include a controller to receive information from the sensor, determine, from the received information, whether a particle of interest has passed through the channel, and control the actuator to expel fluid in the foyer through the nozzle based upon the determination.

公开(公告)号：US20190151849A1

公开(公告)日：2019-05-23

申请号：US16099668

申请日：2016-07-26

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Jeffrey A NIELSEN ,  Manish GIRI ,  Chantelle DOMINGUE ,  Kenneth WARD ,  Christie DUDENHOEFER ,  Matthew David SMITH ,  Joshua M. YU ,  Diane R. HAMMERSTAD ,  Hilary ELY

IPC: B01L3/00 ,  B01L3/02

Abstract: According to an example, a microfluidic apparatus may include a channel, a foyer, in which the foyer is in fluid communication with the channel and in which the channel has a smaller width than the foyer, a sensor to sense a property of a fluid passing through the channel, a nozzle in fluid communication with the foyer, and an actuator positioned in line with the nozzle. The microfluidic apparatus may also include a controller to determine whether the sensed property of the fluid meets a predetermined condition and to perform a predefined action in response to the sensed property of the fluid meeting the predetermined condition.

公开(公告)号：US20180221870A1

公开(公告)日：2018-08-09

申请号：US15748877

申请日：2016-01-22

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Chantelle E. DOMINGUE ,  Manish GIRI ,  Matthew David SMITH ,  Joshua M. YU ,  Jeremy SELLS ,  George H. CORRIGAN

IPC: B01L3/00 ,  G01N15/10 ,  G01N15/12

CPC classification number: B01L3/50273 ,  B01L3/502753 ,  B01L2300/0636 ,  B01L2300/0816 ,  B01L2300/1827 ,  B01L2400/0442 ,  G01N15/1031 ,  G01N15/1056 ,  G01N15/12 ,  G01N2015/1006

Abstract: An apparatus includes a microfluidic passage, a chamber, an inlet connecting the microfluidic passage to the chamber, a sensor proximate the inlet to sense fluid within the inlet, a first nozzle, a first fluid driver to move fluid through the first nozzle to draw fluid across the inlet, a second nozzle, a second fluid driver to move fluid through the second nozzle to draw fluid across the inlet and a controller. The controller sequentially actuates the first fluid driver and the second fluid driver.