Gas exchange systems and methods for calculating ventilatory threshold and evaluating pulmonary arterial hypertension

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United States of America Patent

PATENT NO 11154214
APP PUB NO 20180296126A1
SERIAL NO

15953954

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Systems and methods for estimating a ventilatory threshold for a patient and estimating likelihood of pulmonary arterial hypertension are provided. An example method includes determining ratios of minute ventilation to rate of oxygen uptake based on breath-by-breath data for a patient. The example method also includes determining a ventilatory threshold based upon the determined ratios and determining a score based upon an end-tidal partial pressure of carbon dioxide (PetCO2) value at the determined ventilatory threshold and a minute ventilation/carbon dioxide production relationship (VE/VCO2) value at the determined ventilatory threshold. The method also includes using the score to estimate a likelihood that the patient has pulmonary arterial hypertension and causing the estimated likelihood to be displayed on a user interface.

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Patent Owner(s)

  • SHAPE MEDICAL SYSTEMS, INC.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Anderson, David M White Bear Lake, US 141 3543
Anderson, Stephen T North Oaks, US 20 540
MacCarter, Dean J Englewood, US 32 490

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