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US 11,998,334 B2Granted
Devices, systems and methods for gravity-enhanced microfluidic collection, handling and transferring of fluids
AssigneeTasso, Inc.
InventorsErwin Berthier, Ben Casavant, Ben Moga
Life of this patent
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Abstract
The disclosed apparatus, systems and methods relate to the collection of bodily fluids through the use of gravity and microfluidic properties by way of a collector. The collector can make use of microfluidic networks connected to collection sites on the skin of a subject to gather and shuttle blood into a reservoir by a combination of capillary action and gravitational forces. The collected fluid is moved through the microfluidic networks and into the reservoir by a variety of approaches.
Claims23
A system for collecting bodily fluid from a subject, the system comprising:
- a housing including a base having (a) a lower surface configured to be positioned against skin of the subject and (b) an aperture extending therethrough;
- an outflow channel fluidly connected to the aperture and configured to receive a flow of the bodily fluid from the aperture;
- and
- an elongate collection cartridge extending along an axis, wherein the collection cartridge is configured to be releasably coupled to the housing via a coupling portion, wherein a portion of the outflow channel extends through the coupling portion in a direction generally parallel to the lower surface of the base, and wherein, when the collection cartridge is coupled to the coupling portion—
- the collection cartridge is fluidly connected to the portion of the outflow channel to receive the flow of the bodily fluid in the direction generally parallel to the lower surface of the base;
- and
- the axis of the collection cartridge extends generally parallel to the lower surface of the base.
4 more elements
A system for collecting bodily fluid from a subject, the system comprising:
- a housing defining a lumen and including a base having (a) a surface configured to be positioned against skin of the subject and (b) an aperture extending therethrough and opening to the lumen;
- an outflow channel fluidly connected to the aperture via a first fluid path;
- a vacuum source positioned at least partially within the lumen, wherein the vacuum source is fluidly connected to the aperture via a second fluid path substantially different than the first fluid path, and wherein the vacuum source is configured to generate negative pressure within the lumen such that the negative pressure is applied through the aperture;
- and
- a collection cartridge configured to be releasably coupled to the housing,
- wherein, when the collection cartridge is coupled to the housing, the collection cartridge is fluidly connected to the outflow channel.
3 more elements
A system for collecting bodily fluid from a subject, the system comprising:
- a housing defining a lumen and including a base having (a) a lower surface configured to be positioned against skin of the subject and (b) an aperture extending therethrough and opening to the lumen;
- an outflow channel fluidly connected to the aperture via a first fluid path, wherein the outflow channel is configured to receive a flow of the bodily fluid from the aperture along the first fluid path;
- a vacuum source positioned at least partially within the lumen, wherein the vacuum source is fluidly connected to the aperture via a second fluid path substantially different than the first fluid path, and wherein the vacuum source is configured to generate negative pressure within the lumen such that the negative pressure is applied through the aperture;
- and
- an elongate collection cartridge extending along an axis, wherein the collection cartridge is configured to be releasably coupled to the housing via a coupling portion, wherein a portion of the outflow channel extends through the coupling portion in a direction generally parallel to the lower surface of the base, and wherein, when the collection cartridge is coupled to the coupling portion—
- the collection cartridge is fluidly connected to the portion of the outflow channel to receive the flow of the bodily fluid in the direction generally parallel to the lower surface of the base;
- and
- the axis of the collection cartridge extends generally parallel to the lower surface of the base.
5 more elements
Dependencies are inferred from the claim text.