Patent ID: 11963757
Assignee: TREYMED, INC.
Field: Measurement (Instruments)
Classification: CPC A  G | IPC A

Claim 8:
9. A method of monitoring patient respiration information comprising the steps of:
measuring a patient respiration flow;
acquiring a plurality of side-stream breath samples;
detecting for the presence of a physiologic alignment signal in a selected number of breaths of the plurality of acquired side-stream breath samples;
generating a non-patient originated alignment signal from an analyzer and acquiring at least a portion of the alignment signal with the side-stream breath sample when no physiologic alignment signal is detected in the selected number of breaths of the plurality of acquired side-stream breath samples;
determining a flow of the side-stream breath sample, a concentration of oxygen, and a concentration of carbon dioxide in the acquired side-stream breath sample of the patient respiration flow;
determining an offset associated with the alignment of the determined flow and the determined concentrations of oxygen and carbon dioxide in the time domain from a change of a pressure signal associated with the flow and a change of at least one gas signal associated with the concentrations; and
aligning the determined flow with the determined concentrations of oxygen and carbon dioxide in a time domain with respect to their occurrence in the acquired side-stream breath sample of the patient respiration flow as a function of information associated with at least one of the portion of the alignment signal acquired with the portion of the composition of the respiration flow associated with the side-stream breath sample and the physiologic alignment signal for breaths associated with the detection of the presence of the physiologic alignment signal and the non-patient originated alignment signal for breaths when no physiologic alignment signal is detected in the selected number of breaths of the acquired plurality of side-stream breath samples.