公开(公告)号：US09408576B2

公开(公告)日：2016-08-09

申请号：US14267177

申请日：2014-05-01

Applicant: Worcester Polytechnic Institute

Inventor： Ki H. Chon ,  Jowoon Chong

IPC: A61B5/00 ,  A61B5/024 ,  A61B5/046

CPC classification number: A61B5/7282 ,  A61B5/02416 ,  A61B5/02438 ,  A61B5/046 ,  A61B5/6898 ,  A61B5/7264

Abstract: Enhanced real-time realizable AF algorithm for accurate detection of, and discrimination between, NSR, AF, PVC, and PAC. The method of these teachings includes an AF detection method having a modified Poincare approach in order to differentiate various patterns of PAC and PVC from NSR and AF. The method of these teachings can also apply to the Kullback-Leibler divergence or the Turning Point Ratio (TPR) to differentiate between various patterns of PAC and PVC from NSR and AF.

Abstract translation: 增强型实时可实现AF算法，用于NSR，AF，PVC和PAC的精确检测和辨别。 这些教导的方法包括具有修改的庞加莱方法的AF检测方法，以便将PAC和PVC的各种图案与NSR和AF区分开。 这些教导的方法也可以应用于Kullback-Leibler发散度或转折点比（TPR），以区分不同类型的PAC和PVC与NSR和AF。

公开(公告)号：US20130144180A1

公开(公告)日：2013-06-06

申请号：US13684979

申请日：2012-11-26

Applicant: Worcester Polytechnic Institute

Inventor： Ki H. Chon ,  Jinseok Lee

IPC: A61B5/046 ,  A61B5/04 ,  A61B5/0456

CPC classification number: A61B5/046 ,  A61B5/04012 ,  A61B5/0456

Abstract: Methods and systems for automatic detection of Atrial Fibrillation (AF) are disclosed. The methods and systems use time-varying coherence functions (TVCF) to detect AF. The TVCF is estimated by the multiplication of two time-varying transfer functions (TVTFs).

Abstract translation: 公开了自动检测心房颤动（AF）的方法和系统。 方法和系统使用时变相干函数（TVCF）来检测AF。 TVCF通过两个时变传递函数（TVTF）的乘法来估计。

公开(公告)号：US10285601B2

公开(公告)日：2019-05-14

申请号：US15985912

申请日：2018-05-22

Applicant: Worcester Polytechnic Institute

Inventor： Ki H. Chon ,  Jowoon Chong

IPC: A61N5/02 ,  A61B5/024 ,  A61B5/00 ,  A61B5/0464

Abstract: A real-time arrhythmia discrimination method is used in smartphones, which can discriminate between NSR, AF, PACs and PVCs using pulsatile time series collected from a smartphone's camera. To increase the sensitivity of AF detection and add the new capabilities of PVC and PAC identification, the arrhythmia discrimination method of these teachings combines Root Mean Square of Successive RR Differences (RMSSD), Shannon Entropy (ShE) and turning point ratio (TPR), with the Poincare plot, and utilizes the features of pulse rise/fall time and amplitude for arrhythmia discrimination.

公开(公告)号：US20180271389A1

公开(公告)日：2018-09-27

申请号：US15985912

申请日：2018-05-22

Applicant: Worcester Polytechnic Institute

Inventor： Ki H. Chon ,  Jowoon Chong

IPC: A61B5/024 ,  A61B5/0464 ,  A61B5/00

CPC classification number: A61B5/02405 ,  A61B5/0464 ,  A61B5/6898 ,  A61B5/7282

Abstract: A real-time arrhythmia discrimination method is used in smartphones, which can discriminate between NSR, AF, PACs and PVCs using pulsatile time series collected from a smartphone's camera. To increase the sensitivity of AF detection and add the new capabilities of PVC and PAC identification, the arrhythmia discrimination method of these teachings combines Root Mean Square of Successive RR Differences (RMSSD), Shannon Entropy (ShE) and turning point ratio (TPR), with the Poincare plot, and utilizes the features of pulse rise/fall time and amplitude for arrhythmia discrimination.

公开(公告)号：US10653362B2

公开(公告)日：2020-05-19

申请号：US15010345

申请日：2016-01-29

Applicant: WORCESTER POLYTECHNIC INSTITUTE

Inventor： Ki H. Chon ,  Jo Woon Chong ,  Duy Dao ,  Hamed Salehizadeh

IPC: A61B5/02 ,  A61B5/00 ,  A61B5/024 ,  A61B5/1455

Abstract: A pulse oximeter embedded with a motion and noise artifact (MNA) detection algorithm based on extraction of time-varying spectral features that are unique to the clean and corrupted components.

公开(公告)号：US09986921B2

公开(公告)日：2018-06-05

申请号：US14702601

申请日：2015-05-01

Applicant: Worcester Polytechnic Institute

Inventor： Ki H. Chon ,  Jowoon Chong

IPC: A61B5/02 ,  A61B5/024 ,  A61B5/00 ,  A61B5/0464

CPC classification number: A61B5/02405 ,  A61B5/0464 ,  A61B5/6898 ,  A61B5/7282

Abstract: A real-time arrhythmia discrimination method is used in smartphones, which can discriminate between NSR, AF, PACs and PVCs using pulsatile time series collected from a smartphone's camera. To increase the sensitivity of AF detection and add the new capabilities of PVC and PAC identification, the arrhythmia discrimination method of these teachings combines Root Mean Square of Successive RR Differences (RMSSD), Shannon Entropy (ShE) and turning point ratio (TPR), with the Poincare plot, and utilizes the features of pulse rise/fall time and amplitude for arrhythmia discrimination.