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1. (WO2018165517) TEMPERATURE BASED RESPIRATORY DETECTION

Pub. No.:    WO/2018/165517    International Application No.:    PCT/US2018/021691
Publication Date: Fri Sep 14 01:59:59 CEST 2018 International Filing Date: Sat Mar 10 00:59:59 CET 2018
IPC: A61B 5/08
A61B 5/091
A61B 5/087
A01K 29/00
G01F 1/68
Applicants: WORCESTER POLYTECHNIC INSTITUTE
Inventors: GARVEY, Lucy
HASSAN, Lubna
NICHOLS, Kyla
PAQUIN, Allison
DANIELLO, Robert J.
ROLLE, Marsha
Title: TEMPERATURE BASED RESPIRATORY DETECTION
Abstract:
An equine respiratory detection device provides an inexpensive, portable appliance for evaluating equine health. A muzzle or mouthpiece attaches to the equine mouth region for sealably engaging with the respiratory pathway. The mouthpiece attached to a tubular vessel having a volumetric sensing apparatus for measuring respiratory inflow and outflow rates. The sensing apparatus includes a hot wire anemometer and sensing circuit for sensing flow rates based on changing electrical characteristics of a sensing element resulting from a temperature and humidity of the respiratory gases. Inhaling results in inflow gases having a cooling effect on a thermistor which affects the current flow in the sensor circuit. Similarly, exhaled outflow gases have increased temperature and humidity which allow identification of bidirectional flow and computation of an overall respiration volume to the equine patient subject.