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Determining the functional residual capacity of a subject

A functional residual capacity, subject technology, applied in the fields of drug devices, diagnostic recording/measurement, medical science, etc., can solve problems such as unreliability

Active Publication Date: 2011-11-16
KONINK PHILIPS ELECTRONICS NV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these systems usually require the measurement of oxygen consumption
Measurement of oxygen consumption at relatively high concentrations of O 2 (for example, greater than 80% oxygen concentration) tends to be unreliable

Method used

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  • Determining the functional residual capacity of a subject
  • Determining the functional residual capacity of a subject
  • Determining the functional residual capacity of a subject

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] figure 1 A system 10 configured to determine a functional residual capacity of a subject 12 is illustrated. Specifically, system 10 does not measure O 2 The amount consumed then determines the functional residual capacity of subject 12 . This is not to say that the system 10 is measuring O 2 is not operable in the case of consumption, but does not require such measurements to make a determination. The determination of functional residual capacity by system 10 is performed in real time or near real time. As used herein, the term "near real-time" refers to processing that is performed in close enough proximity to real-time to be of value in providing ongoing therapy to subject 12 as a result of the processing. For example, determining functional residual capacity in near real time would provide a metric related to the current functional residual capacity of subject 12 that can be used to dynamically adjust one or more aspects of respiratory therapy being provided to s...

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PUM

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Abstract

Provided are a system and a method that determine the functional residual capacity of a subject in an automated manner. The determination of the functional residual capacity of the subject is made by analyzing the washout and / or wash-in of one or more molecular species present in gas breathed by the subject. The determination of the functional residual capacity can be made without a determination of oxygen consumption.

Description

technical field [0001] The present invention relates to determining the functional residual capacity of a subject being mechanically ventilated. Background technique [0002] Functional residual capacity is the volume of gas in the lungs at the end of normal breathing. In certain disease states seen in mechanically ventilated patients, this volume is reduced. To address the reduction in functional residual capacity, the positive end-expiratory pressure ("PEEP") of the respiratory therapy can be adjusted. In some instances, other parameters of respiratory therapy may also be adjusted based on functional residual capacity. [0003] Conventional ventilation systems are known to measure functional residual volume. However, these systems generally require the measurement of oxygen consumption. Measurement of oxygen consumption at relatively high concentrations of O 2 (for example, greater than 80% oxygen concentration) tends to be unreliable. Measurement of oxygen consumpti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/08A61B5/083A61B5/087A61M16/00
CPCA61M2016/161A61M2016/102A61B5/091A61M16/0051A61M2205/52A61B5/083A61M2016/0036A61M2016/0027A61M2230/43A61M2205/3368A61M2016/1025A61M16/161A61M16/024
Inventor J·A·奥尔L·布鲁尔
Owner KONINK PHILIPS ELECTRONICS NV
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