Breath analysis cartridge with components for dispensing developer solution
AssigneeInvoy Holdings Inc.
InventorsZachary B. Smith, Marcus Goudie, Lubna M. Ahmad
Life of this patent
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Abstract
Various systems, devices, components, and methods are disclosed for measuring the concentration of an analyte, such as acetone, in a breath sample. The disclosed devices include a breath sample analysis device having a mouthpiece configured to facilitate engagement with a user's mouth to receive a breath sample. The disclosed devices also include a breath sample capture cartridge containing an interactant that extracts the analyte from a breath sample passed through the cartridge. Also disclosed are devices for routing the breath sample through the cartridge during exhalation, and for analyzing a reaction in the cartridge to measure a concentration of the analyte.
Claims13
A breath sample analysis cartridge, comprising:
- a cartridge body that houses an interactant and a compressible reservoir that holds a volume of developer solution, said compressible reservoir comprising an absorbent material pre-soaked with said developer solution;
- and
- a piston slidably mounted within the cartridge body, the piston slidable from a first position in which the piston does not apply a compressive force to the compressible reservoir to a second position in which the piston applies a compressive force to the compressible reservoir, wherein the compressive force causes the developer solution to flow from the compressible reservoir into the interactant;
- wherein the piston and cartridge body are configured to cause the piston to lock into said second position such that the piston continues to apply said compressive force to the compressible reservoir once the piston is advanced to the second position.
A breath sample analysis cartridge, comprising:
- a cartridge body that houses an interactant and a compressible reservoir that holds a volume of developer solution;
- and
- a piston slidably mounted within the cartridge body, the piston slidable from a first position in which the piston does not apply a compressive force to the compressible reservoir to a second position in which the piston applies a compressive force to the compressible reservoir, wherein the compressive force causes the developer solution to flow from the compressible reservoir into the interactant, wherein the piston carries a desiccant;
- wherein the piston and cartridge body are configured to cause the piston to lock into said second position such that the piston continues to apply said compressive force to the compressible reservoir once the piston is advanced to the second position.
A breath sample analysis cartridge, comprising:
- a cartridge body that houses an interactant and a compressible reservoir that holds a volume of developer solution, said compressible reservoir comprising an absorbent material soaked with said developer solution;
- and
- a slidable member slidably mounted within the cartridge body, the slidable member slidable from a first position in which the slidable member does not apply a compressive force to the compressible reservoir to a second position in which the slidable member applies a compressive force to the compressible reservoir, wherein the compressive force causes the developer solution to flow from the compressible reservoir into the interactant;
- wherein the slidable member locks into said second position in the cartridge body.
A breath sample analysis cartridge, comprising:
- a cartridge body that houses an interactant and a compressible reservoir that holds a volume of developer solution;
- and
- a slidable member slidably mounted within the cartridge body, the slidable member slidable from a first position in which the slidable member does not apply a compressive force to the compressible reservoir to a second position in which the slidable member applies a compressive force to the compressible reservoir, wherein the compressive force causes the developer solution to flow from the compressible reservoir into the interactant, wherein the slidable member carries a desiccant;
- p1 wherein the slidable member locks into said second position in the cartridge body.
Dependencies are inferred from the claim text.