-
公开(公告)号：US10881338B2
公开(公告)日：2021-01-05
申请号：US16414280
申请日：2019-05-16
Applicant: HITACHI, LTD.
Inventor： Nobuhiro Fukuda , Masashi Kiguchi
IPC: A61B5/00 , A61B5/1455 , H04N5/33 , G06T7/90 , G06T7/00
Abstract: A biological information detection apparatus for measuring a SpO2 without contact from a distant position includes a camera that acquires an image with visible and infrared light, a first wavelength fluctuation detection section detects a temporal variation of a wavelength of an image with the visible light to generate a first wavelength difference data signal, a first amplitude detection section detects an amplitude of the first wavelength difference data signal, a second wavelength fluctuation detection section detects a temporal variation of a wavelength of an image with the infrared light to generate a second wavelength difference data signal, a second amplitude detection section detects an amplitude of the second wavelength difference data signal, a ratio calculation section calculates a ratio between the amplitudes of the first and second wavelength difference data signals, and an oxygen saturation concentration calculation section calculates an oxygen saturation concentration based on the calculated amplitude ratio.
-
公开(公告)号：US10548518B2
公开(公告)日：2020-02-04
申请号：US15311647
申请日：2014-06-23
Applicant: Hitachi, Ltd.
Inventor： Tsukasa Funane , Takusige Katura , Hirokazu Atsumori , Masashi Kiguchi
IPC: A61B5/1455 , A61B5/00
Abstract: In a biophotonic measurement device based on the principles of near-infrared spectroscopy (NIRS), in order to realize appropriate conditions in any light-source/detector arrangement and various required specifications, a photoirradiation module 13 including a light source 101, a photodetection module 14 including a photodetector 102, and a central control/analysis unit 18 are provided. The central control/analysis unit 18 acquires correspondence relations between each of photodetection units and photoirradiation units by using a correspondence acquiring unit 19. The photoirradiation module 13 and the photodetection module 14 switch signal detection methods at each measurement point by utilizing an evaluation function value determined by detection output of the photodetector 102 so that the plurality of signal detection methods are mixable, and the high-precision and optimum biophotonic measurement device is realized.
-
公开(公告)号：US11701011B2
公开(公告)日：2023-07-18
申请号：US17004371
申请日：2020-08-27
Applicant: HITACHI, LTD.
Inventor： Nobuhiro Fukuda , Yuichi Nonaka , Yuto Komatsu , Charles Limasanches , Takashi Numata , Hironori Wakana , Masashi Kiguchi
IPC: A61B5/021 , A61B5/103 , A61B5/00 , A61B5/1171
CPC classification number: A61B5/02125 , A61B5/0077 , A61B5/1032 , A61B5/1176
Abstract: Provided is a biological information detection device including: an image acquisition unit that acquires an image composed of image signals including a plurality of wavelength components obtained by capturing reflected light from an object; a region division unit that divides the image into a plurality of regions for each frame; a local pulse wave detection unit that detects a pulse wave based on wavelength fluctuation between frames for each of the regions; and a blood pressure estimation unit that calculates propagation velocity of the pulse wave based on an appearance time difference of patterns of the pulse waves in two or more regions extracted based on an appearance order of the patterns of the pulse waves in the plurality of regions, and estimates a blood pressure based on the propagation velocity of the pulse wave.
-
公开(公告)号：US11331048B2
公开(公告)日：2022-05-17
申请号：US15723605
申请日：2017-10-03
Applicant: HITACHI, LTD.
Inventor： Stephanie Sutoko , Masashi Kiguchi , Atsushi Maki , Tsukasa Funane , Hiroki Sato
Abstract: Provided is a technique for comprehensively understanding the relationship between brain regions. A brain connectivity analysis system herein includes a memory configured to have stored therein a connectivity analysis program for analyzing the connectivity; and a processor configured to read the connectivity analysis program from the memory and analyze the connectivity. The processor is configured to execute a process of acquiring from a storage unit measured data on a plurality of selected regions of a brain, a process of determining at least two of the plurality of regions as seed regions and calculating a plurality of connectivity features for the seed regions and other regions from the measured data on the plurality of regions, and a process of generating a connectivity feature graph showing a relationship between a transfer delay time and another connectivity feature of each region that are included in the plurality of connectivity features.
-
公开(公告)号：US20200337573A1
公开(公告)日：2020-10-29
申请号：US16818189
申请日：2020-03-13
Applicant: HITACHI, LTD.
Inventor： Nobuhiro FUKUDA , Masashi Kiguchi , Takashi Numata , Hironori Wakana
Abstract: A biological information detection device includes: a video capture unit, a blood flow analysis unit, a local pulse wave detection unit, a pulse wave propagation velocity calculation unit, and a blood pressure estimation unit. The video capture unit obtains video information on a face of a living body. The blood flow analysis unit analyzes video data of at least three skin areas in the video information, as blood flow information. The local pulse wave detection unit is provided for each skin area to calculate pulse information based on the blood flow information sequenced chronologically. The pulse wave propagation velocity calculation unit calculates a pulse wave propagation velocity based on a phase difference between pieces of the pulse information at each skin area calculated by the local pulse wave detection unit. The blood pressure estimation unit estimates blood pressure based on the pulse wave propagation velocity.
-
Patent Agency Ranking
公开(公告)号：US10755187B2
公开(公告)日：2020-08-25
申请号：US15532434
申请日：2015-06-17
Applicant: Hitachi, Ltd.
Inventor： Masashi Egi , Masashi Kiguchi , Hirokazu Atsumori
Abstract: A mood score calculation system includes a processor and a memory. The memory is configured to hold relationship information on a relationship between a mood score of a user and a statistical feature for indicating fluctuation of operational interval time of a user terminal. The processor is configured to acquire an operation log of a first user terminal. The processor is configured to calculate, from the operation log, a value of a statistical feature for indicating fluctuation of operational interval time of the first user terminal. The processor is configured to determine a mood score of a user of the first user terminal based on the value of the statistical feature and the relationship information and output the mood score.
-
公开(公告)号：US09131887B2
公开(公告)日：2015-09-15
申请号：US13739022
申请日：2013-01-11
Applicant: Hitachi, Ltd.
Inventor： Hiroki Sato , Masashi Kiguchi
IPC: A61B5/00 , A61B5/16 , A61B5/1455
CPC classification number: A61B5/165 , A61B5/14553
Abstract: Disclosed is an system for measuring mood states, which calculate and views high-accurate mood indices from brain activation signals obtained by a non-invasive biospectrometric technology, taking account into differences among individuals, for example cognitive capacity using methods supporting the measurement of mood states of individuals. The system of the present invention stores a plurality of different mood index calculation formulae, selects one of the plurality of mood index calculation formulae based on a personal trait, for example the working memory task performance or working memory capacity of a subject, and substitutes the brain activation data of the subject for the selected calculation formula to calculate and view mood indices.
Abstract translation: 公开了一种用于测量情绪状态的系统，其计算并观察通过非侵入性生物测量技术获得的脑激活信号的高准确心情指数，考虑到个体之间的差异，例如使用支持心情状态测量的方法的认知能力 的个人 本发明的系统存储多种不同的情绪指标计算公式，根据个人特征，例如对象的工作记忆任务表现或工作记忆容量，选择多种情绪指标计算公式之一， 用于计算和查看情绪指标的受试者的大脑激活数据。
-
公开(公告)号：US11896205B2
公开(公告)日：2024-02-13
申请号：US17204001
申请日：2021-03-17
Applicant: Hitachi, Ltd.
Inventor： Ayako Nishimura , Akihiko Kandori , Tsukasa Funane , Akiko Obata , Hirokazu Atsumori , Masashi Kiguchi
CPC classification number: A61B10/0045 , A61B5/073 , A61B5/6861 , A61B10/0038 , A61B5/6871 , A61B2010/0061 , A61B2560/0406 , A61B2562/02 , A61B2562/162 , A61M31/00
Abstract: A digestive organ internal contents sampling capsule for sampling internal contents in a digestive organ includes: a cylindrical container insoluble in a digestive tract for housing the internal contents in the digestive organ; an outer lid enclosing an orifice of the cylindrical container and to dissolve at least partially in the digestive organ; an inner lid arranged in the cylindrical container, and to swell in response to contact with the internal contents in the digestive organ to enclose the orifice of the cylindrical container after the orifice is exposed by dissolving of at least a part of the outer lid; and a marker material to be discharged together with the cylindrical container housing the internal contents in the digestive organ and feces.
-
公开(公告)号：US11593518B2
公开(公告)日：2023-02-28
申请号：US16505746
申请日：2019-07-09
Applicant: Hitachi, Ltd.
Inventor： Tsukasa Funane , Masashi Kiguchi
IPC: G06N7/00 , G16H10/00 , G06F21/62 , G06T7/00 , G06T7/194 , G16H30/40 , G06V10/44 , G06T19/20 , G06T7/11 , G16H10/60
Abstract: Provided is a medical image processing apparatus including: an image acquisition unit that obtains a medical image of a subject; and an image processing unit that generates a second medical image by applying predetermined image processing on the medical image. The image processing unit includes: a surface area extraction unit that extracts a surface area including information that can lead to individuality determination or identification of the subject, from the medical image; a body orientation determination unit that determines body orientation on the basis of the surface area; a surface area deformation unit that deforms the surface area of the medical image; and an object assignment unit that assigns an object indicating the body orientation to the medical image in which the surface area has been deformed and that generates the second medical image.
-
公开(公告)号：US11547309B2
公开(公告)日：2023-01-10
申请号：US16818189
申请日：2020-03-13
Applicant: HITACHI, LTD.
Inventor： Nobuhiro Fukuda , Masashi Kiguchi , Takashi Numata , Hironori Wakana
Abstract: A biological information detection device includes: a video capture unit, a blood flow analysis unit, a local pulse wave detection unit, a pulse wave propagation velocity calculation unit, and a blood pressure estimation unit. The video capture unit obtains video information on a face of a living body. The blood flow analysis unit analyzes video data of at least three skin areas in the video information, as blood flow information. The local pulse wave detection unit is provided for each skin area to calculate pulse information based on the blood flow information sequenced chronologically. The pulse wave propagation velocity calculation unit calculates a pulse wave propagation velocity based on a phase difference between pieces of the pulse information at each skin area calculated by the local pulse wave detection unit. The blood pressure estimation unit estimates blood pressure based on the pulse wave propagation velocity.
-
-
-
-
-
-
-
-
-
Search Results
12
records
(took 0.014 seconds)
