公开(公告)号：EP2713857A1

公开(公告)日：2014-04-09

申请号：EP12727487.6

申请日：2012-05-30

Applicant: Nellcor Puritan Bennett Ireland

Inventor： GALEN, Peter ,  ADDISON, Paul ,  WATSON, James ,  MCGONIGLE, Scott

IPC: A61B5/02 ,  A61B5/024 ,  A61B5/1455

CPC classification number: A61B5/02416 ,  A61B5/14551 ,  A61B5/726 ,  A61B5/7282

Abstract: Systems and methods for detecting and monitoring arrhythmias from a signal are provided. A signal processing system may transform a signal using a wavelet transformation and analyze changes in features of the transformed signal to detect pulse rhythm abnormalities. For example, the system may detect pulse rhythm abnormalities by analyzing energy parameters, morphology changes, and pattern changes in the scalogram of a PPG signal. Further, the system may detect pulse rhythm abnormalities by analyzing both the PPG signal and its corresponding scalogram. Physiological information, such as cardiac arrhythmia, may be derived based on the detected pulse rhythm abnormality.

公开(公告)号：EP2757943B1

公开(公告)日：2017-04-19

申请号：EP12761992.2

申请日：2012-09-20

Applicant: Nellcor Puritan Bennett Ireland

Inventor： MCGONIGLE, Scott ,  WATSON, James, Nicholas

IPC: A61B5/08 ,  A61B5/1455

CPC classification number: A61B5/0816 ,  A61B5/14551 ,  A61B5/6826 ,  A61B5/7232 ,  A61B5/7239 ,  G06F19/00

Abstract: A patient monitoring system may determine one or more reference points of a physiological signal. The system may select one or more fiducial points on the physiological signal relative to the reference points. The one or more fiducial points may be selected by selecting a point spaced by a time interval relative to one of the reference points. The time interval may be a predetermined constant, or the time interval may depend on physiological information. The system may generate a fiducial signal based on the selected fiducial points, calculate physiological information such as a respiration rate based on the selected fiducial points, or both.

Abstract translation: 患者监视系统可以确定生理信号的一个或多个参考点。 系统可以相对于参考点在生理信号上选择一个或多个基准点。 可以通过选择相对于参考点之一间隔一个时间间隔的点来选择一个或多个基准点。 时间间隔可以是预定常数，或者时间间隔可以取决于生理信息。 该系统可以基于所选择的基准点产生基准信号，基于所选择的基准点计算生理信息，例如呼吸速率，或两者。

公开(公告)号：EP2757944B1

公开(公告)日：2018-12-12

申请号：EP12769284.6

申请日：2012-09-21

Applicant: Nellcor Puritan Bennett Ireland

Inventor： MCGONIGLE, Scott ,  ADDISON, Paul ,  OCHS, James ,  WATSON, James

IPC: A61B5/08 ,  A61B5/1455

CPC classification number: A61B5/0816 ,  A61B5/14551 ,  A61B5/7232 ,  A61B5/7239

Abstract: A patient monitoring system may receive a photoplethysmograph (PPG) signal including samples of a pulse waveform. The PPG signal may demonstrate morphology changes based on respiration. The system may calculate morphology metrics from the PPG signal, the first derivative of the PPG signal, the second derivative of the PPG signal, or any combination thereof. The morphology metrics may demonstrate amplitude modulation, baseline modulation, and frequency modulation of the PPG signal that is related to respiration. Morphology metric signals generated from the morphology metrics may be used to determine respiration information such as respiration rate.

公开(公告)号：EP2757943A1

公开(公告)日：2014-07-30

申请号：EP12761992.2

申请日：2012-09-20

Applicant: Nellcor Puritan Bennett Ireland

Inventor： MCGONIGLE, Scott ,  WATSON, James, Nicholas

IPC: A61B5/08 ,  A61B5/1455

CPC classification number: A61B5/0816 ,  A61B5/14551 ,  A61B5/6826 ,  A61B5/7232 ,  A61B5/7239 ,  G06F19/00

Abstract: A patient monitoring system may determine one or more reference points of a physiological signal. The system may select one or more fiducial points on the physiological signal relative to the reference points. The one or more fiducial points may be selected by selecting a point spaced by a time interval relative to one of the reference points. The time interval may be a predetermined constant, or the time interval may depend on physiological information. The system may generate a fiducial signal based on the selected fiducial points, calculate physiological information such as a respiration rate based on the selected fiducial points, or both.