Breath analysis system, device and method employing nanoparticle-based sensor
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United States of America Patent
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Jun 30, 2020
Grant Date -
Nov 17, 2016
app pub date -
May 16, 2016
filing date -
May 14, 2015
priority date (Note) -
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status (Latency Note)
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Abstract
A system is provided that includes a portable measurement device for measuring acetone in a breath sample of a user. The measurement device comprises a housing, a user-direct breath input device for engaging in direct fluid communication with a respiratory tract of the user and receiving the breath sample from the respiratory tract, a flow path disposed within the housing, a nanoparticle-based sensor disposed in the housing in fluid communication with the flow path and at an intermediate location between the upstream end and the downstream end, and a flow control device disposed in the housing and in the flow path between the upstream end and the nanoparticle-based sensor that prevents flow of the breath sample in an upstream direction opposite the downstream direction.
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