Device with discrete hydrophilic porous components and method of making the same
AssigneePorex Corporation
InventorMichael Gerald Arthur
Life of this patent
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Abstract
A device (10) for storing or delivering an aqueous solution and methods for manufacturing the device. The includes a non-porous hydrophobic substrate (100); and a plurality of hydrophilic porous protrusions (102) discretely distributed on the non-porous hydrophobic substrate and integrally formed on the non-porous hydrophobic substrate. Each of the plurality of hydrophilic porous protrusions is configured to absorb and hold an aqueous solution e.g., an ink, a biological liquid sample, or paint. The hydrophilic porous protrusions can have same or different shapes. The protrusions can be distributed in any desired pattern.
Claims18
A device for storing or delivering an aqueous solution, the device comprising:
- a non-porous hydrophobic substrate;
- and
- a plurality of hydrophilic porous protrusions discretely distributed on the non-porous hydrophobic substrate and integrally formed on the non-porous hydrophobic substrate, wherein each of the plurality of hydrophilic porous protrusions is configured to absorb and hold an aqueous solution.
A method of manufacturing a device for storing or delivering a liquid sample, the method comprising:
- filling multiple discretely distributed cavities of a mold with a first polymeric material;
- placing a polymeric sheet of a second material over the cavities, the second material having a melting temperature lower than a melting temperature of the first material;
- heating the mold above a melting temperature of the first material;
- cooling the first polymeric material in the cavities and the polymeric sheet so that the first polymeric material is integrally attached to the polymeric sheet.
Dependencies are inferred from the claim text.