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US 11,946,843 B2Granted
Sample filtration device
AssigneeSplitrx LLC
InventorEstevan Mendoza
Life of this patent
Estimating the term…
Abstract
Sample filtration devices are provided. The devices can comprise a filter membrane positioned between an input and output substrate and joined using an adhesive layer. The filter assembly can be used with various sample collection and dispensing devices, such as a flexible container, a bulb pipette, a micropipette, etc. Applying pressure to the filter assembly, e.g., using a flexible container, a bulb pipette or a micropipette can force the fluid through the filter membrane and onto a test strip or cartridge.
Claims20
A sample filtration device comprising
- an input substrate comprising an inlet hole;
- a filter membrane in fluid communication with the inlet hole and configured to filter the sample into a filtrate;
- a double sided adhesive layer adhered to the filter membrane and the input substrate, the adhesive layer comprising a central cutout configured to expose a central portion of the filter membrane, wherein a size of an outer perimeter of the filter is smaller than a size of an outer perimeter of the adhesive layer;
- and
- an output substrate comprising one or more channels in fluid communication with the filtrate from the filter, the one or more channels in fluid communication with an outlet of the output substrate.
2 more elements
A sample filtration device comprising
- an input substrate comprising an inlet hole;
- a filter membrane in fluid communication with the inlet hole and configured to filter the sample into a filtrate;
- a double sided adhesive layer adhered to the filter membrane and the input substrate, the adhesive layer comprising a central cutout configured to expose a central portion of the filter membrane, wherein a size of an outer perimeter of the filter is smaller than a size of an outer perimeter of the adhesive layer;
- and
- an output substrate comprising one or more channels in fluid communication with the filtrate from the filter, the one or more channels in fluid communication with an outlet of the output substrate, wherein the double sided adhesive layer is adhered to the output substrate.
2 more elements
Dependencies are inferred from the claim text.