Sub-pascal unidirectional flow valves
AssigneeTrustees of Boston University
InventorsChristos Michas, Anant Chopra, Alice Elizabeth White, Christopher S Chen
Life of this patent
Estimating the term…
Abstract
A valve includes a body including an inner bore extending between a first port and a second port, a seat, and one or more restrainers and a disk that is moveable between the seat and the one or more restrainers such that a first pressure that is less than 1 pascal and applied in a first direction causes the disk to move from a first position towards a second position to permit fluid communication between the first port and the second port. A metamaterial scaffold including a structure defining a lumen, at least a portion of an outer or non-lumen surface of the structure is coated with a plurality of biological cells, and wherein the structure is composed of a metamaterial.
Claims20
A valve comprising:
- a body including an inner bore extending between a first port and a second port, a seat, and one or more restrainers;
- and
- a disk including a cylindrical portion and a spherical portion, the disk being moveable between the seat and the one or more restrainers and being configured such that (i) a first pressure that is less than 1 pascal and applied in a first direction causes the disk to move from a first position towards a second position to permit fluid communication between the first port and the second port and (ii) a second pressure that is less than 1 pascal and applied in a second opposing direction causes the disk to move from the second position towards the first position to inhibit fluid communication between the first port and the second port.
A microfluidic system comprising:
- a valve including:
- a body including an inner bore extending between a first port and a second port, a seat having an opening and being disposed within the inner bore, and a plurality of restrainers positioned between the seat and the second port;
- and
- a disk configured to move relative to the seat and the plurality of restrainers such that application of a first predetermined pressure that is between about 0.05 pascals and 1 pascal causes the disk to move from a first position towards a second position to permit fluid communication between the first port and the second port.
Dependencies are inferred from the claim text.