WO2006044458A3 - Electrostatic actuation for management of flow - Google Patents

Electrostatic actuation for management of flow Download PDF

Info

Publication number
WO2006044458A3
WO2006044458A3 PCT/US2005/036675 US2005036675W WO2006044458A3 WO 2006044458 A3 WO2006044458 A3 WO 2006044458A3 US 2005036675 W US2005036675 W US 2005036675W WO 2006044458 A3 WO2006044458 A3 WO 2006044458A3
Authority
WO
WIPO (PCT)
Prior art keywords
flow
management
present
electrostatic actuation
valve
Prior art date
Application number
PCT/US2005/036675
Other languages
French (fr)
Other versions
WO2006044458A2 (en
Inventor
James P Landers Ph D
Matthew R Begley
Jerome P Ferrance
Michael H Jones
Jennifer Monahan-Dian
Original Assignee
Univ Virginia
James P Landers Ph D
Matthew R Begley
Jerome P Ferrance
Michael H Jones
Jennifer Monahan-Dian
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Univ Virginia, James P Landers Ph D, Matthew R Begley, Jerome P Ferrance, Michael H Jones, Jennifer Monahan-Dian filed Critical Univ Virginia
Priority to US11/665,326 priority Critical patent/US8056881B2/en
Publication of WO2006044458A2 publication Critical patent/WO2006044458A2/en
Publication of WO2006044458A3 publication Critical patent/WO2006044458A3/en
Priority to US13/294,908 priority patent/US8403294B2/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K99/00—Subject matter not provided for in other groups of this subclass
    • F16K99/0001—Microvalves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K99/00—Subject matter not provided for in other groups of this subclass
    • F16K99/0001—Microvalves
    • F16K99/0003—Constructional types of microvalves; Details of the cutting-off member
    • F16K99/0015—Diaphragm or membrane valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K99/00—Subject matter not provided for in other groups of this subclass
    • F16K99/0001—Microvalves
    • F16K99/0034—Operating means specially adapted for microvalves
    • F16K99/0042—Electric operating means therefor
    • F16K99/0051—Electric operating means therefor using electrostatic means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K99/00—Subject matter not provided for in other groups of this subclass
    • F16K2099/0073—Fabrication methods specifically adapted for microvalves
    • F16K2099/0074—Fabrication methods specifically adapted for microvalves using photolithography, e.g. etching
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K99/00—Subject matter not provided for in other groups of this subclass
    • F16K2099/0073—Fabrication methods specifically adapted for microvalves
    • F16K2099/0078—Fabrication methods specifically adapted for microvalves using moulding or stamping
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K99/00—Subject matter not provided for in other groups of this subclass
    • F16K2099/0073—Fabrication methods specifically adapted for microvalves
    • F16K2099/008—Multi-layer fabrications
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K99/00—Subject matter not provided for in other groups of this subclass
    • F16K2099/0082—Microvalves adapted for a particular use
    • F16K2099/0084—Chemistry or biology, e.g. "lab-on-a-chip" technology
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/877—With flow control means for branched passages
    • Y10T137/87708—With common valve operator
    • Y10T137/87772—With electrical actuation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/494—Fluidic or fluid actuated device making
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49405—Valve or choke making

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Micromachines (AREA)
  • Automatic Analysis And Handling Materials Therefor (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)

Abstract

The present invention relates to microfluidic devices, and in particular, flow management in such devices. In particular, the present invention provides an electrostatic valve for flow manipulation in a microfluidic device. The valve of the present invention sits on a valve seat in a microchannel and deflects away from the valve seat by electrostatic actuation to assume an opened configuration to allow fluid flow.
PCT/US2005/036675 2004-10-13 2005-10-13 Electrostatic actuation for management of flow WO2006044458A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US11/665,326 US8056881B2 (en) 2004-10-13 2005-10-13 Electrostatic actuation for management of flow in micro-total analysis systems (μ-TAS) and related method thereof
US13/294,908 US8403294B2 (en) 2004-10-13 2011-11-11 Electrostatic actuation for management of flow in micro-total analysis systems (μ-TAS) and related method thereof

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US61812704P 2004-10-13 2004-10-13
US60/618,127 2004-10-13

Related Child Applications (2)

Application Number Title Priority Date Filing Date
US11/665,326 A-371-Of-International US8056881B2 (en) 2004-10-13 2005-10-13 Electrostatic actuation for management of flow in micro-total analysis systems (μ-TAS) and related method thereof
US13/294,908 Continuation US8403294B2 (en) 2004-10-13 2011-11-11 Electrostatic actuation for management of flow in micro-total analysis systems (μ-TAS) and related method thereof

Publications (2)

Publication Number Publication Date
WO2006044458A2 WO2006044458A2 (en) 2006-04-27
WO2006044458A3 true WO2006044458A3 (en) 2006-06-08

Family

ID=36203483

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2005/036675 WO2006044458A2 (en) 2004-10-13 2005-10-13 Electrostatic actuation for management of flow

Country Status (2)

Country Link
US (2) US8056881B2 (en)
WO (1) WO2006044458A2 (en)

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US8056881B2 (en) 2004-10-13 2011-11-15 University Of Virginia Patent Foundation Electrostatic actuation for management of flow in micro-total analysis systems (μ-TAS) and related method thereof

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US8403294B2 (en) 2004-10-13 2013-03-26 University Of Virginia Patent Foundation Electrostatic actuation for management of flow in micro-total analysis systems (μ-TAS) and related method thereof

Also Published As

Publication number Publication date
WO2006044458A2 (en) 2006-04-27
US20120056116A1 (en) 2012-03-08
US8403294B2 (en) 2013-03-26
US8056881B2 (en) 2011-11-15
US20080179555A1 (en) 2008-07-31

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