APPARATUS AND METHOD FOR NON-INVASIVELY SEPARATING AND MEASURING AIRFLOW COMPONENT AND BLOOD FLOW COMPONENT

• Main Authors: WI, Hun, JANG, Geuk Young
• Format: Patent
• Language: English; French; Korean
• Published: 11.08.2022
• Subjects: DIAGNOSIS; HUMAN NECESSITIES; HYGIENE; IDENTIFICATION; MEDICAL OR VETERINARY SCIENCE; SURGERY

The present invention relates to an apparatus and method for non-invasively separating and measuring an airflow component and a blood flow component and, to an apparatus and method for extracting shape-reference voltage waveforms associated with airflow and blood flow through principal component analysis (PCA) and independent component analysis (ICA), respectively, from time-series voltage data obtained from a subject, and separating the airflow component and the blood flow component for each voltage channel by using the extracted shape-reference voltage waveforms, thereby non-invasively and continuously measuring a one-time ventilation and a stroke volume from the separated airflow and blood flow components, respectively. La présente invention se rapporte à un appareil et une méthode pour séparer et mesurer de manière non invasive un composant de flux d'air et un composant de flux sanguin et, à un appareil et un procédé pour extraire des formes d'onde de tension de référence de forme associées au flux d'air et au flux sanguin par analyse de composante principale (PCA) et analyse de composante indépendante (ICA), respectivement, à partir de données de tension en série chronologique obtenues à partir d'un sujet, et pour séparer le composant de flux d'air et le composant de flux sanguin pour chaque canal de tension à l'aide des formes d'onde de tension de référence de forme extraites, ce qui permet de mesurer de manière non invasive et continue une ventilation unique et un volume d'éjection systolique à partir des composants séparés de flux d'air et de flux sanguin, respectivement. 본 발명은 비침습적으로 기류성분과 혈류성분을 분리하여 측정하는 장치 및 그 방법에 관한 것으로, 피검체로부터 획득한 시계열의 전압데이터로부터 주성분분석(PCA)과 독립성분분석(ICA)을 통해 각각 기류 및 혈류와 관련한 형상-기준 전압 파형을 추출하고, 상기 추출한 형상-기준 전압 파형을 이용하여 각 전압채널별 기류성분과 혈류성분을 분리하여, 상기 분리한 기류성분과 혈류성분으로부터 각각 일회환기량과 일회박출량을 비침습적으로 동시에 연속적으로 측정하는 장치 및 그 방법에 관한 것이다.