US 12,257,386 B2
System for detection of leakage or abnormal resistance in a ventilation system
Fredrik Jalde, Sundbyberg (SE)
Assigned to MAQUET CRITICAL CARE AB, Solna (SE)
Appl. No. 16/487,019
Filed by MAQUET CRITICAL CARE AB, Solna (SE)
PCT Filed Mar. 1, 2017, PCT No. PCT/SE2017/050189
§ 371(c)(1), (2) Date Aug. 19, 2019,
PCT Pub. No. WO2018/160107, PCT Pub. Date Sep. 7, 2018.
Prior Publication US 2021/0128852 A1, May 6, 2021
Int. Cl. A61M 16/00 (2006.01); A61M 16/10 (2006.01)
CPC A61M 16/024 (2017.08) [A61M 16/0051 (2013.01); A61M 16/0057 (2013.01); A61M 16/10 (2013.01); A61M 2016/0015 (2013.01); A61M 2016/0018 (2013.01); A61M 2205/15 (2013.01); A61M 2205/18 (2013.01); A61M 2210/1014 (2013.01); A61M 2230/005 (2013.01); A61M 2230/08 (2013.01); A61M 2230/40 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A method for detection of leakage or abnormal resistance in a ventilation system, the ventilation system including a breathing apparatus configured to provide a mechanical ventilation to a patient, comprising:
measuring, using a bioelectric sensor, a bioelectric signal indicative of the patient's effort to breathe;
determining, using a processor of the breathing apparatus, a change in the bioelectric signal; and
determining, using the processor, leakage or abnormal resistance in the ventilation system based on the change in the bioelectric signal,
wherein the bioelectric signal is at least one of an Edi signal or an EMG signal, indicative of electrical activity of the patient's respiratory muscles, or an EEG signal indicative of electrical activity of the patient's respiratory centres of a brain, and
wherein the method is performed during ventilation of the patient in a ventilation mode in which the mechanical ventilation of the patient is controlled based on the bioelectric signal.