METHOD OF USING TRIGGERABLE PASSIVE VALVES TO CONTROL THE FLOW OF FLUID

• US 20090139577A1
• Filed: 02/02/2009
• Published: 06/04/2009
• Est. Priority Date: 03/30/2005
• Status: Abandoned Application

• Current Assignee: Sebastian Bohm
• Original Assignee: Sebastian Bohm
• Inventors: Bohm, Sebastian
• Application Number:
  US12/363,850
• Publication Number:
  US 20090139577A1
• Time in Patent Office: Days
• US Class Current: 137/12
• CPC Class Codes: F04B 19/24 Pumping by heat expansion of pumped fluid
• CPC Class Codes: F04B 43/06 Pumps having fluid drive
• CPC Class Codes: F04B 53/10 Valves; Arrangement of valves
• CPC Class Codes: F04B 53/1077 Flow resistance valves, e.g. without moving parts
• CPC Class Codes: Y10T 137/0379 By fluid pressure

Abstract

The present invention is directed to methods for controlling the flow of fluid and, more particularly, to a method of using triggerable passive valves to control the flow of fluid. In one embodiment of the present invention a method of using triggerable passive valves to control the flow of fluid is described wherein fluid is moved through a passive valve by providing pneumatic pressure between the passive valve and a flow restrictor, the pneumatic pressure exerted causing the pressure exerted by the fluid on the passive valve to exceed the burst pressure of the passive valve.

Claims

1. (canceled)

2. (canceled)

3. (canceled)

4. (canceled)

5. (canceled)

6. A method of controlling the flow of fluid in a microchannel using a triggeable passive valve to position said fluid over an analyte sensor, said method comprising the steps of:

providing a microchannel having a first segment and a second segment, said second segment including said analyte sensor;

positioning a triggerable passive valve in said microchannel between said first segment and said second segment;

moving a fluid into said first segment, wherein said fluid exerts a pressure on said triggerable passive valve;

triggering said triggerable passive valve to move a bolus of said fluid into said second segment;

measuring a quantity indicative of the concentration of analyte in said bolus using said analyte sensor.

7. (canceled)

8. (canceled)

9. (canceled)

10. (canceled)