公开(公告)号：US20240122533A1

公开(公告)日：2024-04-18

申请号：US18546448

申请日：2021-11-15

Applicant: OSAKA UNIVERSITY ,  HEARTLAB, INC.

Inventor： Shigeru MIYAGAWA ,  Yoshiki SAWA ,  Hidetsugu ASANOI ,  Sunao IKEGAWA

IPC: A61B5/00 ,  A61B5/08

CPC classification number: A61B5/4842 ,  A61B5/0816 ,  A61B5/6892 ,  A61B2562/0247

Abstract: The present invention relates to an evaluation device 4 for evaluating the severity of pneumonia in a target patient, comprising: an acquisition unit 42 for acquiring a respiratory waveform of the target patient; a calculation unit 43 for calculating a value of an index indicating instability of a respiratory cycle or a respiratory frequency from the respiratory waveform; and an evaluation unit 44 for evaluating the severity based on the calculated value.

公开(公告)号：US20250107771A1

公开(公告)日：2025-04-03

申请号：US18834815

申请日：2022-11-24

Applicant: Hidetsugu ASANOI ,  HEARTLAB, INC.

Inventor： Hidetsugu ASANOI

IPC: A61B7/04 ,  A61B5/00

Abstract: A heart sound analysis device 3 that analyzes a heart sound signal acquired from a subject comprises an amplitude variation waveform generation unit 33a that generates an amplitude variation waveform of the heart sound signal; a peak detection unit 33b that detects maximum peaks in the amplitude variation waveform; a time interval calculation unit 33c that calculates time intervals between the maximum peaks; and a prediction support unit 33d that supports the prediction of the state of the subject based on the time intervals.

公开(公告)号：US20230157634A1

公开(公告)日：2023-05-25

申请号：US17920398

申请日：2021-04-22

Applicant: OSAKA UNIVERSITY

Inventor： Hidetsugu ASANOI ,  Yoshiki SAWA ,  Shigeru MIYAGAWA ,  Sunao IKEGAWA

IPC: A61B5/00 ,  A61B5/11

CPC classification number: A61B5/4842 ,  A61B5/7267 ,  A61B5/7275 ,  A61B5/7246 ,  A61B5/1115 ,  A61B5/6892 ,  A61B2562/0247

Abstract: This invention relates to a prediction support system and associated methods for supporting prediction of the severity of a disease. The systems and methods may perform operations that include continuously detecting whether a patient with the disease is in bed, and acquiring, based on the detection result of the detecting, an in-bed pattern indicating, as a time series, whether the patient is in bed. The systems may include a detection device and an acquisition unit.

公开(公告)号：US20220142507A1

公开(公告)日：2022-05-12

申请号：US17585199

申请日：2022-01-26

Applicant: Sumitomo Riko Company Limited ,  Osaka University

Inventor： Wataru TAKAHASHI ,  Masanori YAMAMOTO ,  Atsuki SHIMIZU ,  Mitsuyoshi KONDO ,  Jun Taguchi ,  Hidetsugu ASANOI ,  Yoshiki SAWA ,  Shigeru MIYAGAWA

IPC: A61B5/113 ,  A61B5/00 ,  A61B5/11

Abstract: A heart failure diagnostic device includes a piezoelectric sensor sheet having flexibility and configured to output a detection signal corresponding to an input vibration. A respiratory signal acquisition unit is configured to extract, as a respiratory signal, a signal of a vibration frequency caused by respiration from the detection signal detected by the piezoelectric sensor sheet. A power spectrum calculator is configured to obtain a power spectrum of a respiratory frequency band from the respiratory signal, and a signal corrector is configured to correct the detection signal such that in the power spectrum, a maximum value of a first-order frequency component of a respiratory waveform is not smaller than 1.5 times a maximum value of a second-order frequency component of the respiratory waveform to obtain the respiratory signal.