Valve structure for consistent valve operation of a miniaturized fluid delivery and analysis system
View Patent ↗A valve structure of a fluid delivery and analysis system having an upper substrate, a lower substrate and an intermediate layer with at least one opening and at least one open cavity having a first touch point between the upper substrate and the intermediate layer and a second touch point between the lower substrate and the intermediate layer where the first touch point and the second touch point are offset to create a torque so that when intermediate layer is compressed between the upper substrate and the lower substrate that the torque deforms the intermediate rubber layer in the direction of the opening for better sealing.
1. A valve structure of a fluid delivery and analysis system, wherein said valve structure is comprised of an upper substrate, a lower substrate and an intermediate layer wherein said intermediate layer is comprised of at least one opening wherein said at least one opening extends from an upper surface of said intermediate layer through to a lower surface of said intermediate layer and at least one indented well wherein said at least one indented well has an opening end at said upper surface of said intermediate layer and a closed end at said lower surface of said intermediate layer or said at least one indented well has an opening end at said lower surface of said intermediate layer and a closed end at said upper surface of said intermediate layer wherein a first touch point is provided between said upper substrate and said intermediate layer and a second touch point is provided between said lower substrate and said intermediate layer wherein said first touch point and said second touch point are offset to create a torque when said intermediate layer is compressed between said upper substrate and said lower substrate wherein said torque deforms said intermediate layer in the direction of said at least one indented well.
2. The valve structure of claim 1 wherein said at least one indented well is located between said at least one opening and said first touch point and said second touch point.
3. A method to provide a valve structure of a fluid delivery and analysis system comprising: a. providing an upper substrate, b. providing a lower substrate, c. providing an intermediate layer in between said upper substrate and said lower substrate comprising at least one opening and at least one indented well wherein a first touch point is provided between said upper substrate and said intermediate layer and a second touch point is provided between said lower substrate and said intermediate layer wherein said first touch point and said second touch point are offset to create a torque when said intermediate layer is compressed between said upper substrate and said lower substrate wherein said torque deforms said intermediate layer in the direction of said at least one opening.
4. A method of claim 3 wherein said at least one indented well is located between said at least one opening and said first touch point and said second touch point.