Board of Regents of the University of Texas System;United States Government, as represented by the Secretary of the Army;University of Cincinnati
发明人:
Michael Kinsky,Rich Branson,George Kramer,Muzna Khan,Jay Johanningman,Jose Salinas,Nehemiah Liu
申请号：
US15725172
公开号：
US20180099109A1
申请日:
2017.10.04
申请国别(地区):
US
年份:
2018
代理人:
摘要：
A system for assessing lung function in a patient is enclosed. The oxygen delivery system in the system (e.g., a ventilator or portable standalone system) preferably includes an oximeter sensor for receiving SpO2 from a patient. The assessing lung function in a patient includes an FiO2 adjust algorithm operable in logic circuitry in the ventilator that can control an oxygen fraction FiO2 provided to the patient in a closed loop fashion. In a preferred example, the algorithm controls FiO2 using the SpO2, but also displays a ratio of SpO2-to FiO2 (S/CLCF) as a function of time. One or more S/CLCF ratio threshold may be used to allow the clinician and/or the algorithm to understand a degree of lung injury, and to allow the algorithm to adjust FiO2 appropriately. Preferably, the algorithm keeps SpO2 to a range of 88-95%.
