公开(公告)号：US20150335289A1

公开(公告)日：2015-11-26

申请号：US14817363

申请日：2015-08-04

Applicant: FUJIFILM CORPORATION

Inventor： Kaku IRISAWA ,  Kazuhiro TSUJITA

IPC: A61B5/00 ,  A61B17/34 ,  A61B8/08

Abstract: The invention provides a photoacoustic measurement device that can confirm the position of a puncture needle in a photoacoustic image even in the case where the puncture needle is stuck to a deep position from the surface of a subject. Further, the invention provides a puncture needle that is used for the photoacoustic image generating device. The puncture needle 14 is a hollow needle that has an opening formed at a tip thereof. The puncture needle 14 includes a puncture needle body 31 and a light guide 32. The light guide 32 extends in a longitudinal direction of the puncture needle body. The light guide 32 emits light at least in part to the puncture needle body 31 while guiding light emitted from a light source toward the tip of the puncture needle body.

Abstract translation: 本发明提供一种光声测量装置，即使在穿刺针被粘贴到被检体的表面的深位置的情况下也能够确认穿刺针在光声图像中的位置。 此外，本发明提供一种用于光声图像生成装置的穿刺针。 穿刺针14是具有形成在其顶端的开口的中空针。 穿刺针14包括穿刺针体31和导光体32.导光体32沿着穿刺针体的长度方向延伸。 导光体32至少部分地向穿刺针体31发射光，同时将从光源射出的光引向穿刺针体的前端。

公开(公告)号：US20180035975A1

公开(公告)日：2018-02-08

申请号：US15725522

申请日：2017-10-05

Applicant: FUJIFILM Corporation

Inventor： Kazuhiro TSUJITA ,  Takeya ABE

IPC: A61B8/00 ,  G01N29/24 ,  A61B5/00

Abstract: An optical fiber guides light output from a light source to an ultrasound probe. The ultrasound probe includes a light guiding section that guides the light from a light input end, which is optically coupled with the optical fiber to a light output end provided in the vicinity of ultrasonic transducers. The light guiding section has a first light guiding portion that includes the light input end, and a second light guiding portion that includes the light output end. The first light guiding portion is formed by glass, and magnifies input light. The second light guiding portion is formed by resin, and emits the light toward a subject from the light output end.

公开(公告)号：US20140371571A1

公开(公告)日：2014-12-18

申请号：US14469626

申请日：2014-08-27

Applicant: FUJIFILM Corporation

Inventor： Kazuhiro TSUJITA

IPC: A61B5/00

CPC classification number: A61B5/0095 ,  A61B5/7257 ,  A61B5/742 ,  A61B8/0891 ,  A61B8/5207 ,  A61B8/5215 ,  A61B8/54 ,  A61B2576/00

Abstract: A desired structure is selectively imaged by photoacoustic imaging. Photoacoustic signals are detected, and the detected photoacoustic signals are reconstructed to generate photoacoustic image data. A Fourier transform in a two-dimensional or higher dimensional space is applied to the photoacoustic image data to generate spatial frequency domain photoacoustic image data. Given spatial frequency components are extracted from the spatial frequency domain photoacoustic image data, and an inverse Fourier transform is applied to the extracted spatial frequency components to generate spatial frequency-processed photoacoustic image data.

Abstract translation: 通过光声成像选择性地成像期望的结构。 检测光声信号，并重建检测到的光声信号以产生光声图像数据。 将二维或更高维空间中的傅里叶变换应用于光声图像数据以产生空间频域光声像图像数据。 给定从空间频域光声图像数据中提取空间频率分量，并将逆傅里叶变换应用于所提取的空间频率分量，以产生空间频率处理的光声图像数据。

公开(公告)号：US20140018661A1

公开(公告)日：2014-01-16

申请号：US14026212

申请日：2013-09-13

Applicant: Fujifilm Corporation

Inventor： Kazuhiro TSUJITA ,  Takatsugu Wada

IPC: A61B5/00

CPC classification number: A61B5/0095

Abstract: Light is prevented from being irradiated onto positions different from portions at which photoacoustic images are to be generated. Acoustic waves are transmitted from a probe, and the probe detects reflected acoustic signals of the transmitted ultrasonic waves. The features of the reflected acoustic signals detected by the probe and the features of reflected acoustic signals, which are obtained in advance when the probe is at a position where a photoacoustic image is to be generated, are compared. Light is irradiated onto a subject if it is judged that the features of the reflected acoustic signals match. Photoacoustic signals generated within the subject due to irradiation of laser light are detected, and a photoacoustic image is generated based on the photoacoustic signals.

Abstract translation: 防止光被照射到与要产生光声图像的部分不同的位置上。 声波从探头传输，探头检测发射超声波的反射声信号。 比较了当探针处于要产生光声像的位置时预先获得的由探针检测的反射声信号的特征和反射声信号的特征。 如果判断反射声信号的特征相匹配，则将光照射到被摄体上。 检测由于照射激光而在被摄体内产生的光声信号，并且基于光声信号产生光声图像。

公开(公告)号：US20130338478A1

公开(公告)日：2013-12-19

申请号：US13972600

申请日：2013-08-21

Applicant: FUJIFILM CORPORATION

Inventor： Kazuhiro HIROTA ,  Kazuhiro TSUJITA

IPC: A61B5/00

CPC classification number: A61B5/0095 ,  A61B5/14551 ,  A61B5/6844 ,  A61B8/429 ,  G01N29/2418

Abstract: A probe transmits acoustic waves toward a subject. After transmission of the acoustic waves, the probe receives reflected acoustic waves of the transmitted acoustic waves. Whether the probe is in contact with a subject is judged based on the received reflected acoustic waves. The probe irradiates light toward the subject when it is judged that the probe is in contact with the subject. After the light is irradiated, acoustic waves generated within the subject due to the light being irradiated are received. A photoacoustic image is generated based on the received acoustic waves generated due to the light being irradiated.

Abstract translation: 探头向被摄体发射声波。 在发射声波之后，探测器接收所发射的声波的反射声波。 基于所接收的反射声波来判断探头是否与被摄体接触。 当判断探头与被摄体接触时，探头向被摄体照射光。 在照射光之后，接收由于照射光而在被检体内产生的声波。 基于由于被照射的光而产生的接收的声波，产生光声图像。

公开(公告)号：US20130310694A1

公开(公告)日：2013-11-21

申请号：US13948697

申请日：2013-07-23

Applicant: FUJIFILM Corporation

Inventor： Kazuhiro TSUJITA ,  Takeya ABE

IPC: A61B8/00 ,  A61B5/00

CPC classification number: A61B8/4444 ,  A61B5/0035 ,  A61B5/0059 ,  A61B5/0095 ,  A61B8/4416 ,  A61B8/4455 ,  G01N29/2418 ,  G01N2291/02475

Abstract: An optical fiber guides light output from a light source to an ultrasound probe. The ultrasound probe includes a light guiding section that guides the light from a light input end, which is optically coupled with the optical fiber to a light output end provided in the vicinity of ultrasonic transducers. The light guiding section has a first light guiding portion that includes the light input end, and a second light guiding portion that includes the light output end. The first light guiding portion is formed by glass, and magnifies input light. The second light guiding portion is formed by resin, and emits the light toward a subject from the light output end.

Abstract translation: 光纤将从光源输出的光导向超声波探头。 超声波探头包括导光部，其将来自光输入端的光引导到与光纤耦合的光输出端，设置在超声波换能器附近。 导光部具有包括光输入端的第一导光部和包括光输出端的第二导光部。 第一导光部由玻璃形成，放大输入光。 第二导光部由树脂形成，从光输出端朝向被摄体发光。

公开(公告)号：US20180235477A1

公开(公告)日：2018-08-23

申请号：US15958210

申请日：2018-04-20

Applicant: FUJIFILM Corporation

Inventor： Kazuhiro HIROTA ,  Kazuhiro TSUJITA

IPC: A61B5/00 ,  A61B8/00

CPC classification number: A61B5/0095 ,  A61B8/4416 ,  A61B8/463

Abstract: A photoacoustic imaging method is provided that can prevent the surface of the subject from appearing in an image when a part to be observed at a position deeper than the surface of the subject is imaged. The photoacoustic imaging device includes a unit for outputting pulsed light toward the subject, and generating photoacoustic data by detecting photoacoustic waves emitted from the subject exposed to the light. The photoacoustic imaging device also includes a region detection unit that detects a near-surface region of the subject based on the photoacoustic wave detection signals, and a correcting unit that attenuates (which encompasses removing) information of the near-surface region found by the region detection unit when the part to be observed is displayed.

公开(公告)号：US20150057534A1

公开(公告)日：2015-02-26

申请号：US14535735

申请日：2014-11-07

Applicant: FUJIFILM CORPORATION

Inventor： Kazuhiro TSUJITA

IPC: A61B5/00

CPC classification number: A61B5/0095 ,  A61B5/7235 ,  A61B5/7425

Abstract: A photoacoustic wave induced in a subject to be examined by illumination of the subject to be examined with light is detected. A first photoacoustic image corresponding to a frequency component less than or equal to a predetermined frequency and a second photoacoustic image corresponding to a frequency component higher than a predetermined frequency are generated based on a detection signal of the detected photoacoustic wave. The first photoacoustic image and the second photoacoustic image are combined together by placing, on a pixel in the first photoacoustic image the pixel value of which is less than or equal to a threshold, a pixel in the second photoacoustic image corresponding to the pixel in the first photoacoustic image.

Abstract translation: 检测通过用光照射待检查对象来检查受试者中感光的光声波。 基于所检测的光声波的检测信号，生成对应于小于或等于预定频率的频率分量的第一光声图像和对应于高于预定频率的频率分量的第二光声图像。 第一光声图像和第二光声图像通过将像素值小于或等于阈值的第一光声图像中的像素放置在对应于第二光声图像中的像素的第二光声图像中的像素而组合在一起 第一光声图像。

公开(公告)号：US20140005556A1

公开(公告)日：2014-01-02

申请号：US14017411

申请日：2013-09-04

Applicant: FUJIFILM Corporation

Inventor： Kazuhiro HIROTA ,  Kazuhiro TSUJITA ,  Kaku IRISAWA

IPC: A61B5/00 ,  A61B8/00

CPC classification number: A61B5/0095 ,  A61B8/4444 ,  A61B8/5261

Abstract: A probe includes an acoustic wave transmitting section that transmits acoustic waves toward a subject, a light irradiating section that irradiates a light beam guided from a light source, and an acoustic wave detecting section that detects photoacoustic waves generated within the subject due to irradiation of the light beam onto the subject and reflected acoustic waves of the acoustic waves transmitted into the subject. In addition, a mode switching switch is provided on the probe. A control means switches operating modes between an operating mode in which the acoustic wave detecting section detects at least photoacoustic waves, and an operating mode in which the acoustic wave detecting section does not detect photoacoustic waves.

Abstract translation: 探针包括：朝向被检体发射声波的声波发送部，照射从光源引导的光束的光照射部;以及声波检测部，其检测由于受光体的照射而在被检体内产生的光声 将光束照射到被摄体上，并将反射的声波传播到被检体内。 另外，在探头上设置模式切换开关。 控制装置在其中声波检测部分至少检测到光声波的操作模式与声波检测部分不检测光声波的操作模式之间切换操作模式。

公开(公告)号：US20130261426A1

公开(公告)日：2013-10-03

申请号：US13909525

申请日：2013-06-04

Applicant: FUJIFILM Corporation

Inventor： Kaku IRISAWA ,  Kazuhiro TSUJITA

IPC: A61B5/00

CPC classification number: A61B5/0095

Abstract: A probe employed in photoacoustic inspection is equipped with: a light emitting section that emits a light beam onto a subject; and an electroacoustic converting section that converts photoacoustic waves into electrical signals. The light emitting section is configured to emit light onto an emission range on the subject that includes the entirety of a corresponding region of the subject that corresponds to the electroacoustic converting section, the minimum distance between the outer peripheral edge of the corresponding region and the outer peripheral edge of the emission range being 5 mm or greater. The present invention enables detection of photoacoustic waves with a higher S/N ratio, in photoacoustic inspection that utilizes the photoacoustic effect.

Abstract translation: 用于光声检查的探针装备有：将光束发射到被摄体上的发光部分; 以及将光声波转换为电信号的电声转换部。 发光部被配置为向被摄体的发光范围发光，该发射范围包括与电声转换部相对应的被检体的对应区域的整体，相应区域的外周边缘与外部对应区域的最小距离 发射范围的外围边缘为5mm或更大。 本发明能够在利用光声效应的光声检查中检测具有较高S / N比的光声波。