Title: Check valves for microfluidic systems and methods thereof

Abstract

The present invention relates to microfluidic check valves, as well as fluidic cartridges including such check valves. In particular examples, the check valve includes a pre-stressed spring formed from a planar substrate. Various characteristics of the valves, such as size, profile, opening pressure, etc., can be tuned to provide desired performance when employed within a fluidic cartridge.

Inventors:

Ball, Cameron Scott; Renzi, Ronald F.; Meagher, Robert

Issue Date:

2019-11-19

Research Org.:

Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

1600287

Patent Number(s):

10478818

Application Number:

15/447,581

Assignee:

National Technology & Engineering Solutions of Sandia, LLC (Albuquerque, NM)

Patent Classifications (CPCs):

B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01L - CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE

F - MECHANICAL ENGINEERING F16 - ENGINEERING ELEMENTS AND UNITS F16K - VALVES

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B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01L - CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE

B01L2200/10 - Integrating sample preparation and analysis in single entity, e.g. lab-on-a-chip concept
B01L2200/12 - Specific details about manufacturing devices
B01L2300/049 - Valves integrated in closure
B01L2300/0887 - Laminated structure
B01L2400/0487 - fluid pressure, pneumatics
B01L2400/0605 - check valves
B01L3/502707 - {characterised by the manufacture of the container or its components
B01L3/502715 - {characterised by interfacing components, e.g. fluidic, electrical, optical or mechanical interfaces}
B01L3/50273 - {characterised by the means or forces applied to move the fluids
B01L3/502738 - {characterised by integrated valves

F - MECHANICAL ENGINEERING F16 - ENGINEERING ELEMENTS AND UNITS F16K - VALVES

F16K2099/008 - {Multi-layer fabrications}
F16K2099/0084 - {Chemistry or biology, e.g. "lab-on-a-chip" technology}
F16K2099/0094 - {Micropumps}
F16K99/0005 - {Lift valves}
F16K99/0009 - {the valve element held by multiple arms}
F16K99/0015 - {Diaphragm or membrane valves}
F16K99/0057 - {the fluid being the circulating fluid itself, e.g. check valves}

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DOE Contract Number:  

AC04-94AL85000

Resource Type:

Patent

Resource Relation:

Patent File Date: 03/02/2017

Country of Publication:

United States

Language:

English

Subject:

42 ENGINEERING