Elastic valve and microfluidic device including the same
AssigneeSamsung Electronics Co., Ltd.
InventorsKak Namkoong, Chin-sung Park, Jin-tae Kim, Joo-won Rhee
Life of this patent
Estimating the term…
Abstract
An elastic valve and a microfluidic device including the same are provided. The elastic valve includes a channel dented by external pressure so as to be elastically restituted; and a plurality of channel closing protrusions, which comprise elastomer as a material, which are protruded from at least one inner side surface of the channel toward an opposite inner side surface, and which are separated from each other so as not to interrupt a flow of fluids, wherein, when external pressure is applied in order to dent the channel, the plurality of channel closing protrusions are deformed so as to be elastically restituted, thereby closing the channel.
Claims20
An elastic valve comprising:
- a channel dented by external pressure so as to be elastically restituted;
- and
- a plurality of channel closing protrusions, which comprise elastomer as a material, are protruded from at least one inner side surface of the channel toward an opposite inner side, and are separated from each other by an interval so as not to interrupt a flow of fluids,
- wherein, when external pressure is applied thereby denting the channel, the plurality of channel closing protrusions are deformed so as to be elastically restituted, thereby closing the channel, and
- wherein the deformation of the channel closing protrusions comprises expansion of a cross-section of the channel closing protrusions sideways towards one another so that adjacent channel closing protrusions touch each other to close the corresponding interval to thereby completely close the channel.
A microfluidic device comprising:
- an upper-plate;
- a lower-plate adhered to the upper-plate;
- a channel which is formed by a groove engraved at least on a bottom surface of the upper-plate from among the bottom surface of the upper-plate and a top surface of the lower-plate, which are adhered to each other, and dented so as to be elastically restituted by external pressure;
- and
- a plurality of channel closing protrusions, which comprise elastomer as a material, which are protruded from at least one inner side surface of the channel toward an opposite inner side surface, and which are separated from each other by an interval so as not to interrupt a flow of fluids,
- wherein, when external pressure is applied, thereby denting the channel, the plurality of channel closing protrusions are deformed so as to be elastically restituted, thereby closing the channel, and
- wherein the deformation of the channel closing protrusions comprises expansion of a cross-section of the channel closing protrusions sideways towards one another so that adjacent channel closing protrusions touch each other to close the corresponding interval to thereby completely close the channel.
Dependencies are inferred from the claim text.