公开(公告)号：US20090264721A1

公开(公告)日：2009-10-22

申请号：US12427623

申请日：2009-04-21

申请人： Masaru YARITA

发明人： Masaru YARITA

IPC分类号： A61B5/1455

CPC分类号： A61B5/0205 ,  A61B5/14546 ,  A61B5/14551 ,  A61B5/7203 ,  A61B5/7225 ,  G06K9/0051

摘要： A method of processing first and second signals obtained by measuring a medium, to obtain a pulse wave signal and an artifact signal which are separated, includes: separating vectors of the first and second signals by using a separation matrix into a vector of the pulse wave signal and a vector of the artifact signal, the separation matrix including a norm ratio of a stable zone of the pulse wave signal and a compensated norm ratio of an artifact zone.

摘要翻译： 一种处理通过测量介质获得的第一和第二信号的方法，以获得分离的脉搏波信号和伪影信号，包括：通过使用分离矩阵将脉冲波的矢量分离第一和第二信号的矢量 信号和伪像信号的矢量，所述分离矩阵包括脉搏波信号的稳定区的范数比和伪影区的补偿范数比。

公开(公告)号：US20070049811A1

公开(公告)日：2007-03-01

申请号：US11508995

申请日：2006-08-24

申请人： Naoki Kobayashi ,  Kenji Miyata ,  Masaru Yarita ,  Kazumasa Ito

发明人： Naoki Kobayashi ,  Kenji Miyata ,  Masaru Yarita ,  Kazumasa Ito

IPC分类号： A61B5/00

CPC分类号： A61B5/14551 ,  A61B5/7257

摘要： In an apparatus for measuring an oxygen saturation in blood, a plurality of light emitters are adapted to irradiate a living tissue with a plurality of light beams having different wavelengths. A light receiver is adapted to receive the light beams reflected from or transmitted through the living tissue to generate pulse wave signals in accordance with pulsations of the blood in the living tissue. A separator is operable to separate each of the pulse wave signals into a plurality of amplitude signals each of which is associated with one frequency, thereby generating pairs of amplitude signals each of which is associated with one of a plurality of frequencies. A first processor is operable to calculate a ratio between the amplitude signals in each of the pairs of the amplitude signals. A selector is operable to select one of the pairs of the amplitude signals. A second processor is operable to calculate the oxygen saturation based on the ratio of the selected one of the pairs of the amplitude signals.

摘要翻译： 在用于测量血液中的氧饱和度的装置中，多个发光体适于用具有不同波长的多个光束照射活组织。 光接收器适于接收从生物体组织反射或透射的光束，以根据活体组织中血液的脉动产生脉搏波信号。 分离器可操作以将每个脉搏波信号分离成多个振幅信号，每个幅度信号与一个频率相关联，从而产生每个与多个频率之一相关联的幅度信号对。 第一处理器可操作以计算每对振幅信号中的幅度信号之间的比率。 选择器可操作以选择幅度信号对之一。 第二处理器可操作以基于所选择的一对振幅信号的比率来计算氧饱和度。

公开(公告)号：US20060287587A1

公开(公告)日：2006-12-21

申请号：US11494494

申请日：2006-07-28

申请人： Masaru Yarita

发明人： Masaru Yarita

IPC分类号： A61B5/00

CPC分类号： A61B5/14551

摘要： A pulse photometer adapted to observe a pulse wave of a living body is disclosed. A light emitter is adapted to irradiate the living body with a first light beam having a first wavelength and a second light beam having a second wavelength which is different from the first wavelength. A converter is operable to convert the first light beam and the second light beam, which have been reflected or transmitted from the living body, into a first data set corresponding to the first wavelength and a second data set corresponding to the second wavelength. A processor is operable to process the first data set and the second data set with a rotating matrix to separate a signal component and a noise component contained in the pulse wave.

摘要翻译： 公开了一种适于观察生物体的脉搏波的脉冲光度计。 光发射器适于用具有第一波长的第一光束和具有不同于第一波长的第二波长的第二光束照射生物体。 A转换器可操作以将已经从生物体反射或发射的第一光束和第二光束转换成对应于第一波长的第一数据集和对应于第二波长的第二数据集。 处理器可操作以用旋转矩阵处理第一数据组和第二数据组，以分离包含在脉波中的信号分量和噪声分量。

公开(公告)号：US08437820B2

公开(公告)日：2013-05-07

申请号：US12427623

申请日：2009-04-21

申请人： Masaru Yarita

发明人： Masaru Yarita

IPC分类号： A61B5/00

CPC分类号： A61B5/0205 ,  A61B5/14546 ,  A61B5/14551 ,  A61B5/7203 ,  A61B5/7225 ,  G06K9/0051

摘要： A method of processing first and second signals obtained by measuring a medium, to obtain a pulse wave signal and an artifact signal which are separated, includes: separating vectors of the first and second signals by using a separation matrix into a vector of the pulse wave signal and a vector of the artifact signal, the separation matrix including a norm ratio of a stable zone of the pulse wave signal and a compensated norm ratio of an artifact zone.

摘要翻译： 一种处理通过测量介质获得的第一和第二信号的方法，以获得分离的脉搏波信号和伪影信号，包括：通过使用分离矩阵将脉冲波的矢量分离第一和第二信号的矢量 信号和伪像信号的矢量，所述分离矩阵包括脉搏波信号的稳定区的范数比和伪影区的补偿范数比。

公开(公告)号：US08175669B2

公开(公告)日：2012-05-08

申请号：US11508995

申请日：2006-08-24

申请人： Naoki Kobayashi ,  Kenji Miyata ,  Masaru Yarita ,  Kazumasa Ito

发明人： Naoki Kobayashi ,  Kenji Miyata ,  Masaru Yarita ,  Kazumasa Ito

IPC分类号： A61B5/1455

CPC分类号： A61B5/14551 ,  A61B5/7257

摘要： In an apparatus for measuring an oxygen saturation in blood, a plurality of light emitters irradiate a living tissue with a plurality of light beams having different wavelengths. A light receiver receives the light beams reflected from or transmitted through the living tissue to generate pulse wave signals in accordance with pulsations of the blood in the living tissue. A separator separates each of the pulse wave signals into a plurality of amplitude signals each of which is associated with one frequency, thereby generating pairs of amplitude signals each of which is associated with one of a plurality of frequencies. A first processor calculates a ratio between the amplitude signals in each of the pairs of the amplitude signals. A selector selects one of the pairs of the amplitude signals. A second processor calculates the oxygen saturation from the ratio of the selected pair of the amplitude signals.

摘要翻译： 在用于测量血液中的氧饱和度的装置中，多个发光体用具有不同波长的多个光束照射生物体组织。 光接收器接收从活体组织反射或透射的光束，以根据活体组织中的血液的脉动产生脉搏波信号。 分离器将每个脉波信号分离成多个振幅信号，每个幅度信号与一个频率相关联，从而产生每个与多个频率之一相关联的振幅信号对。 第一处理器计算每对振幅信号中的幅度信号之间的比率。 选择器选择幅度信号对之一。 第二处理器根据所选择的一对幅度信号的比率来计算氧饱和度。

公开(公告)号：US20060287588A1

公开(公告)日：2006-12-21

申请号：US11494508

申请日：2006-07-28

申请人： Masaru Yarita

发明人： Masaru Yarita

IPC分类号： A61B5/00

CPC分类号： A61B5/14551

摘要： A pulse photometer adapted to observe a pulse wave of a living body is disclosed. A light emitter is adapted to irradiate the living body with a first light beam having a first wavelength and a second light beam having a second wavelength which is different from the first wavelength. A converter is operable to convert the first light beam and the second light beam, which have been reflected or transmitted from the living body, into a first data set corresponding to the first wavelength and a second data set corresponding to the second wavelength. A processor is operable to process the first data set and the second data set with a rotating matrix to separate a signal component and a noise component contained in the pulse wave.

公开(公告)号：US07025728B2

公开(公告)日：2006-04-11

申请号：US10660557

申请日：2003-09-12

申请人： Kazumasa Ito ,  Masaru Yarita ,  Tetsuya Shibasaki

发明人： Kazumasa Ito ,  Masaru Yarita ,  Tetsuya Shibasaki

IPC分类号： A61B5/02 ,  A61B5/00

CPC分类号： A61B5/14551

摘要： A living body is irradiated with a first light beam having a first wavelength and a second light beam having a second wavelength which is different from the first wavelength. The first light beam and the second light beam, which have been reflected or transmitted from the living body, are converted into a first electric signal corresponding to the first wavelength and a second electric signal corresponding to the second wavelength, as the observed pulse data. A light absorbance ratio obtained from the first electric signal and the second electric signal is computed, for each one of frequency ranges dividing an observed frequency band. It is determined that noise is not mixed into the observed pulse wave data in a case where a substantial match exists among light absorbance ratios computed for the respective frequency ranges.

摘要翻译： 用具有第一波长的第一光束和与第一波长不同的第二波长的第二光束照射生物体。 作为观察到的脉冲数据，已经从活体反射或发射的第一光束和第二光束被转换成对应于第一波长的第一电信号和对应于第二波长的第二电信号。 对于分割观测频带的频率范围的每一个，计算从第一电信号和第二电信号获得的吸光度比。 在针对各个频率范围计算的光吸收率之间存在基本匹配的情况下，确定没有混入观察到的脉搏波数据中的噪声。

公开(公告)号：US06201981B1

公开(公告)日：2001-03-13

申请号：US09090409

申请日：1998-06-04

申请人： Masaru Yarita

发明人： Masaru Yarita

IPC分类号： A61B504

CPC分类号： A61B5/0478 ,  A61B5/04085 ,  A61B5/055 ,  Y10S128/901

摘要： An electrode for measuring a biomedical signal has: thin foil electrodes 11a to 11c which are formed into a square shape; lead wires 12a to 12c which are connected to the electrodes 11a to 11c, respectively; and a support section 13 which is made of a flexible material such as rubber or plastic, formed into a slender thin plate-like shape, and supports the electrodes 11a to 11c in a straight line and at constant intervals. The lead wires 12a to 12c are twisted.

摘要翻译： 用于测量生物医学信号的电极具有形成为正方形的薄箔电极11a至11c; 分别连接到电极11a至11c的引线12a至12c; 以及由诸如橡胶或塑料的柔性材料制成的支撑部分13，其形成为细长的薄板状，并以一定的间隔以直线方式支撑电极11a至11c。 引线12a〜12c被扭曲。

公开(公告)号：US07171262B2

公开(公告)日：2007-01-30

申请号：US10352073

申请日：2003-01-28

申请人： Masaru Yarita

发明人： Masaru Yarita

IPC分类号： A61B5/04

CPC分类号： A61B5/02125 ,  A61B5/0205 ,  A61B5/0476 ,  A61B5/742 ,  G06F19/00

摘要： At least an electroencephalogram (EEG) detected by a sensor is input from a signal input section as a vital sign signal. The vital sign signal is stored in a storage as vital sign data. A display includes a first display area, a second display area and a third display area. A controller reads out the vital sign data from the storage to display the vital sign signal on the display. The controller includes a first display processor, which displays the EEG in a real time manner, on the first display area, a second display processor, which displays the EEG at a time point in past, on the second display area, and a third display processor, which displays a time-varying trend of a parameter of the EEG, on the third display area. A designator designates a time point in past in the trend displayed in the third display area, so that the EEG at the designated time point is displayed on the second display area.

摘要翻译： 至少由传感器检测到的脑电图（EEG）作为生命体征信号从信号输入部输入。 生命体征信号作为生命体征数据存储在存储器中。 显示器包括第一显示区域，第二显示区域和第三显示区域。 控制器从存储器中读取生命体征数据，以在显示器上显示生命体征信号。 该控制器包括在第一显示区域上以实时的方式显示EEG的第一显示处理器，在第二显示区域上将EEG显示在过去的时间点的第二显示处理器，以及第三显示器 处理器，其在第三显示区域上显示EEG的参数的时变趋势。 指示符指定在第三显示区域中显示的趋势中的过去的时间点，使得在指定时间点的EEG显示在第二显示区域上。

公开(公告)号：US06780158B2

公开(公告)日：2004-08-24

申请号：US10318228

申请日：2002-12-13

申请人： Masaru Yarita

发明人： Masaru Yarita

IPC分类号： A61B502

CPC分类号： A61B5/14551 ,  A61B5/7207 ,  G06K9/00503

摘要： A first signal and a second signal are provided as two continuous signals having an identical fundamental frequency. A first spectrum which is either one of a frequency spectrum or a frequency power spectrum of the first signal in a predetermined time period is obtained. A second spectrum which is either one of a frequency spectrum or a frequency power spectrum of the second signal in the predetermined time period is obtained. A normalized value which corresponds a ratio of a difference between the first spectrum and the second spectrum and a sum of the first spectrum and the second spectrum at the fundamental frequency is obtained. A ratio of an amplitude of a signal component of the first signal and an amplitude of a signal component of the second signal is obtained based on the normalized value.

摘要翻译： 第一信号和第二信号被提供为具有相同基频的两个连续信号。 获得在预定时间段内作为第一信号的频谱或频率功率谱中的一个的第一频谱。 获得在预定时间段内作为第二信号的频谱或频率功率谱中的一个的第二频谱。 获得对应于第一频谱和第二频谱之间的差的比率和基频处的第一频谱和第二频谱之和的归一化值。 基于归一化值，获得第一信号的信号分量的幅度与第二信号的信号分量的振幅的比。