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SYSTEM FOR MEASURING BREATH ANALYTES

  • US 20140276100A1
  • Filed: 03/12/2014
  • Published: 09/18/2014
  • Est. Priority Date: 02/01/2012
  • Status: Abandoned Application
First Claim
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1. A system for sensing an analyte in breath of a patient, the system comprising:

  • a cartridge comprising a first container, a fluid container, and a reaction volume in fluid communication with the first container and the fluid container, the first container containing a first interactant and the fluid container containing a fluid, wherein the fluid container has an initial fluid level and a space above the initial fluid level; and

    a base comprisinga flow path for flow of the breath within the base,a breath input receiver in fluid communication with the flow path that receives the breath and directs the breath into the flow path,a cartridge housing that detachably receives the cartridge into the base so that the reaction volume is in fluid communication with the flow path′

    a dispensing device that creates a hole in the fluid container below the initial fluid level and that moderates pressure in the space above the initial fluid level as the fluid moves out of the liquid container so that the fluid moves out of the liquid container and into the reaction volume, thereby facilitating an optical change in the reaction volume in relation to at least one of a presence and a concentration of the analyte; and

    an optical subsystem that senses the optical change and generates an output comprising information about the analyte in response to the optical change.

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