Method for analyzing breath waveforms as to their neuromuscular respiratory implications
First Claim
Patent Images
1. A method for measuring respiratory drive of a living subject, comprising the steps of:
- monitoring a breath waveform of the subject;
determining from the monitored breath waveform one of a peak inspiratory flow and a peak inspiratory acceleration of the subject;
determining the respiratory drive of the subject from said determined one of the peak inspiratory flow and peak inspiratory acceleration.
7 Assignments
0 Petitions
Accused Products
Abstract
A method for measuring respiratory drive includes determining a peak inspiratory flow and a peak inspiratory acceleration from a breath waveform derived from rib cage motion and abdominal motion using a plethysmograph or other external respiratory measuring device. The respiratory drive is ascertainable even during complete blockage of the respiratory system. The peak inspiratory drive derived using the inventive method is used to initiate inspiration in a mechanical ventilator and for determining an index describing a shape of the waveform for controlling a continuous positive air pressure (CPAP) device.
-
Citations
37 Claims
-
1. A method for measuring respiratory drive of a living subject, comprising the steps of:
-
monitoring a breath waveform of the subject; determining from the monitored breath waveform one of a peak inspiratory flow and a peak inspiratory acceleration of the subject; determining the respiratory drive of the subject from said determined one of the peak inspiratory flow and peak inspiratory acceleration. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
-
-
20. A method for measuring a respiratory drive of a subject, comprising the steps of:
-
measuring a rib cage motion and an abdominal motion of the subject; determining a tidal volume of a respiratory system of the subject from a sum of the measured rib cage motion and the measured abdominal motion; determining one of a peak inspiratory flow and a peak inspiratory acceleration of the subject from one of the rib cage motion, the abdominal motion and the tidal volume; and determining the respiratory drive from said one of the peak inspiratory flow and the peak inspiratory acceleration. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37)
-
Specification