Sampling swabs and methods of making the same
AssigneeCarnegie Mellon University
InventorsO. Burak Ozdoganlar, Yusuf Senturk, Toygun Cetinkaya, Ant Yucesoy, Ali Gurer, Lisha White, Ezgi Yalcintas
Life of this patent
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Abstract
A device to collect a biological sample may generally include an elongated rod having a handle and terminating in a tip; and a core and a plurality of projections extending in a radial direction from a surface of the core. The projections may have curved geometric pattern, such as a sinusoidal pattern, a circular arc pattern, and/or a helical pattern, for example. The device may include a layer of fibers disposed on a surface of the projections by flocking. Method of making and using the device are also described.
Claims18
A swab to collect and retain a liquid biological sample, the swab comprising:
- an elongated, plastic rod comprising a handle and a core terminating in a tip;
- wherein the core comprises a longitudinal direction and a lateral direction;
- wherein the core comprises a plurality of projections intermediate the handle and the tip to collect and retain the liquid biological sample;
- wherein the handle, core, tip and plurality of projections comprise a unitary, continuous, plastic material;
- wherein each of the plurality of projections extends in the lateral direction from a surface of the core;
- wherein each of the plurality of projections comprises
- an amplitude from 0.1 to 10 times a diameter of the core, and
- a tilt from greater than 0° up to 90° relative to the longitudinal direction of the core,
- wherein the plurality of projections comprises a frequency from 2 to 25 along the longitudinal direction of the core, and
- wherein the plurality of projections comprise a geometric pattern selected from a square wave, a triangle wave, a sawtooth wave, a semicircle wave, a curved wave, and combinations thereof.
A swab to collect and retain a liquid biological sample, the swab comprising:
- an elongated, plastic rod comprising a handle and a core terminating in a tip;
- wherein the core comprises a longitudinal direction and a lateral direction;
- wherein the core comprises a plurality of projections intermediate the handle and the tip to collect and retain the liquid biological sample;
- wherein the handle, core, tip and plurality of projections comprise a unitary, continuous, plastic material;
- wherein each of the plurality of projections extends in the lateral direction from a surface of the core;
- wherein each of the plurality of projections comprises
- an amplitude from 0.1 to 10 times a diameter of the core, and
- a tilt from greater than 0° up to 90° relative to the longitudinal direction of the core,
- wherein the plurality of projections comprises a frequency from 2 to 25 along the longitudinal direction of the core, and
- wherein the plurality of projections comprise a geometric pattern selected from a square wave, a triangle wave, a sawtooth wave, a semicircle wave, a curved wave, and combinations thereof, and
- a layer of flocking disposed on at least a portion of the plurality of projections.
Dependencies are inferred from the claim text.