公开(公告)号：US20180014850A1

公开(公告)日：2018-01-18

申请号：US15711307

申请日：2017-09-21

Applicant: FUJIFILM Corporation

Inventor： Dai MURAKOSHI ,  Kaku IRISAWA

IPC: A61B17/34 ,  A61B5/00 ,  A61B10/02 ,  A61B8/00

CPC classification number: A61B17/3403 ,  A61B5/0095 ,  A61B5/6848 ,  A61B8/4416 ,  A61B10/02 ,  A61B10/0275 ,  A61B2017/3413

Abstract: In a biopsy needle having a hollow tubular outer needle, an inner needle that is disposed in a hollow portion of the outer needle so as to be movable in the tube axis direction relative to the outer needle, and a recessed sample collection portion that is cut inward from a circumferential surface of the inner needle, an outer groove extending in the tube axis direction of the outer needle is provided on at least the distal end side and the rear end side of the sample collection portion in the inner needle, and a light guide member is disposed in the outer groove. At least a part of the light guide member is fixed by fillers filled in the outer groove.

公开(公告)号：US20180008243A1

公开(公告)日：2018-01-11

申请号：US15711239

申请日：2017-09-21

Applicant: FUJIFILM Corporation

Inventor： Kaku IRISAWA ,  Dai MURAKOSHI

IPC: A61B10/02 ,  A61B17/34 ,  G01N29/24

CPC classification number: A61B10/0233 ,  A61B5/0035 ,  A61B5/0095 ,  A61B5/06 ,  A61B5/145 ,  A61B5/6848 ,  A61B5/6851 ,  A61B8/12 ,  A61B8/4416 ,  A61B10/0275 ,  A61B17/3403 ,  A61B2017/00057 ,  A61B2017/3413 ,  G01N29/22 ,  G01N29/2418 ,  G01N2291/02475

Abstract: In a biopsy needle having a hollow tubular outer needle, an inner needle that is disposed in a hollow portion of the outer needle so as to be movable in the tube axis direction relative to the outer needle, and a recessed sample collection portion that is cut inward from a circumferential surface of the inner needle, an inner hole that extends in the longitudinal direction of the inner needle on each of the inner needle distal end side and the inner needle rear end side of the sample collection portion and are opened to the sample collection portion is provided in the inner needle, and a light guide member is disposed in the inner holes. At least a part of the light guide member is fixed by filler filled in the inner holes.

公开(公告)号：US20170181639A1

公开(公告)日：2017-06-29

申请号：US15457742

申请日：2017-03-13

Applicant: FUJIFILM Corporation

Inventor： Kaku IRISAWA ,  Kazuhiro HIROTA

IPC: A61B5/00

Abstract: After light has been output to a subject to be examined, a photoacoustic wave induced in the subject by the output light is detected. It is assumed that at least one virtual detector element is present outside of a real detector, and dummy data corresponding to the at least one virtual detector element are added to photoacoustic data in which pieces of data of the photoacoustic wave detected by the detector are arranged in accordance with the positions of detector elements. A photoacoustic image is generated by reconstructing the photoacoustic data to which the dummy data have been added by using a Fourier transform method.

公开(公告)号：US20170112386A1

公开(公告)日：2017-04-27

申请号：US15397342

申请日：2017-01-03

Applicant: FUJIFILM Corporation

Inventor： Kaku IRISAWA

IPC: A61B5/00 ,  A61B8/08 ,  A61B5/06 ,  A61B8/12

CPC classification number: A61B5/0097 ,  A61B5/0084 ,  A61B5/0095 ,  A61B5/061 ,  A61B5/066 ,  A61B5/6848 ,  A61B8/0841 ,  A61B8/085 ,  A61B8/12 ,  A61B8/13 ,  A61B8/4416 ,  A61B8/445 ,  A61B8/4477 ,  A61B8/5207 ,  A61B8/5246

Abstract: An insert includes: an insert body that has an opening and has an inner cavity therein; a light guide member that is inserted into the inner cavity of the insert body and guides light emitted from a light source; a light emitting portion that emits light guided by the light guide member; a light absorption member that generates photoacoustic waves by absorbing the light emitted from the light emitting portion; and a proximal end portion that has an inlet of liquid and a chamber communicating with the inlet and the inner cavity of the insert body. The inner cavity has a space for flow of the liquid, and liquid injected through the inlet is capable of flowing from the opening of the insert body through the chamber and the space for flow of the liquid.

公开(公告)号：US20160331243A1

公开(公告)日：2016-11-17

申请号：US15220619

申请日：2016-07-27

Applicant: FUJIFILM Corporation

Inventor： Kaku IRISAWA ,  Atsushi HASHIMOTO

IPC: A61B5/00

CPC classification number: A61B5/0095 ,  A61B8/0891 ,  A61B8/4416 ,  A61B8/4444 ,  A61B2562/0242 ,  A61B2562/146

Abstract: Disclosed are a probe for photoacoustic measurement which can suppress generation of artifacts obstructive to signal observation in a photoacoustic measurement, and a photoacoustic measurement apparatus including the same. The probe for photoacoustic measurement includes a light emission unit which emits measurement light to a subject, and an acoustic wave detection unit which detects a photoacoustic wave generated in the subject by the emission of measurement light. An emission end surface of the light emission unit is positioned to a side where the acoustic wave detection unit is located, with respect to a contact plane of the probe, and an optical axis at the emission end surface is inclined to a side opposite to the side on which the acoustic wave detection unit is positioned with respect to a normal direction of a detection surface of the acoustic wave detection unit.

Abstract translation: 公开了一种用于光声测量的探针，其可以抑制在光声测量中阻碍信号观察的伪影的产生，以及包括该光声测量的光声测量装置。 用于光声测量的探针包括向对象发射测量光的发光单元，以及通过发射测量光来检测在对象中产生的光声波的声波检测单元。 发光单元的发射端面相对于探针的接触面位于声波检测单元所在的一侧，并且发射端面的光轴倾斜于与 声波检测单元相对于声波检测单元的检测表面的法线方向定位的一侧。

公开(公告)号：US20150327773A1

公开(公告)日：2015-11-19

申请号：US14809755

申请日：2015-07-27

Applicant: FUJIFILM Corporation

Inventor： Kaku IRISAWA

IPC: A61B5/00 ,  G01H9/00

CPC classification number: A61B5/0095 ,  G01H9/004 ,  G01N29/22 ,  G01N29/24 ,  G01N29/2418 ,  G01N29/2462

Abstract: There is provided a photo acoustic probe which prevents foreign substances from entering and of which a portion of a light emitting unit to be easily damaged can be replaced. An acoustic wave detector 24 detects acoustic waves. First and second light guide members 21 and 23, which form the light emitting unit, are arranged in series in a traveling direction of light. A frame body 11 holds the first light guide members 21, the second light guide members 23, and the acoustic wave detector 24. The first light guide members 21, is positioned close to a subject, is undetachably fixed to the frame body 11. Meanwhile, the second light guide members 23, which is positioned close to a light source, is detachably fixed to the frame body 11.

Abstract translation: 提供了防止异物进入并且可以更换发光单元的一部分容易损坏的光声探针。 声波检测器24检测声波。 形成发光单元的第一和第二导光构件21和23沿光的行进方向串联布置。 框架体11保持第一导光构件21，第二导光构件23和声波检测器24.第一导光构件21靠近被摄体定位，不可靠地固定到框体11。同时 位于靠近光源的第二导光部件23可拆卸地固定在框体11上。

公开(公告)号：US20150150465A1

公开(公告)日：2015-06-04

申请号：US14622084

申请日：2015-02-13

Applicant: FUJIFILM Corporation

Inventor： Kaku IRISAWA ,  Kazuhiro HIROTA

IPC: A61B5/00

CPC classification number: A61B5/0095 ,  A61B5/7225 ,  A61B5/7257 ,  A61B5/742 ,  A61B2576/00

Abstract: After light has been output to a subject to be examined, a photoacoustic wave induced in the subject by the output light is detected. It is assumed that at least one virtual detector element is present outside of a real detector, and dummy data corresponding to the at least one virtual detector element are added to photoacoustic data in which pieces of data of the photoacoustic wave detected by the detector are arranged in accordance with the positions of detector elements. A photoacoustic image is generated by reconstructing the photoacoustic data to which the dummy data have been added by using a Fourier transform method.

Abstract translation: 在光被输出到要被检查的被摄体之后，检测在被检体中通过输出光感应的光声波。 假设至少一个虚拟检测器元件存在于真实检测器之外，并且对应于至少一个虚拟检测器元件的虚拟数据被添加到其中布置有由检测器检测到的光声波的数据的光声数据 根据检测元件的位置。 通过使用傅立叶变换方法重建已经添加了虚拟数据的光声数据来生成光声图像。

公开(公告)号：US20140343394A1

公开(公告)日：2014-11-20

申请号：US14449500

申请日：2014-08-01

Applicant: FUJIFILM Corporation

Inventor： Kaku IRISAWA ,  Takeya ABE

IPC: A61B5/00

CPC classification number: A61B5/0095

Abstract: An acoustic wave detector that detects an acoustic wave from a subject, an optical fiber that guides light emitted from a light source to a probe body, and a light guide member that guides light from a light entrance end, which is optically coupled to the optical fiber, to a light exit end, which is located in the vicinity of the acoustic wave detector, are provided. The light guide member is secured in the probe body with a securing material provided at least partially around the light guide member. The conditional expression below is satisfied: sin−1(n2/n1)×(180°/π)

Abstract translation: 用于检测来自被摄体的声波的声波检测器，将从光源发出的光引导到探针体的光纤，以及导光构件，其将光从光入射端引导，所述光入射端光耦合到光学 光纤到位于声波检测器附近的光出射端。 导光构件通过至少部分地设置在导光构件周围的固定材料固定在探针主体中。 满足下面的条件表达式：sin-1（n2 / n1）×（180°/＆pgr;）<90° - ＆het; i其中n1是导光构件的折射率，n2是固定 材料和亮度;我是来自光纤的入射光的扩展角度。

公开(公告)号：US20140257079A1

公开(公告)日：2014-09-11

申请号：US14283662

申请日：2014-05-21

Applicant: FUJIFILM Corporation

Inventor： Kaku IRISAWA ,  Kazuhiro HIROTA

IPC: A61B5/00

CPC classification number: A61B5/0095 ,  A61B5/725 ,  A61B5/7257 ,  A61B8/4416 ,  G01N29/0654 ,  G01N29/2418 ,  G01N29/46 ,  G01N2291/02475

Abstract: To obtain an absorption distribution from a detected signal with a practical device. Light is applied to a subject, and a photoacoustic signal generated in the subjectA photoacoustic is detected. From the detected photoacoustic signal, a light differential waveform, which is a differential waveform of a temporal waveform of the light applied to the subject, is deconvolved. As a result of this deconvolution, an absorption distribution is obtained.

Abstract translation: 用实用的装置从检测信号中获得吸收分布。 光被施加到被摄体，并且检测在被摄体A中产生的光声信号。 根据检测到的光声信号，对作为对象的光的时间波形的差分波形的光差波形进行解卷积。 作为该反卷积的结果，获得吸收分布。

公开(公告)号：US20140148680A1

公开(公告)日：2014-05-29

申请号：US14167739

申请日：2014-01-29

Applicant: FUJIFILM Corporation

Inventor： Tadashi KASAMATSU ,  Kaku IRISAWA ,  Kazuhiro HIROTA

IPC: A61B5/00 ,  H01S3/11

CPC classification number: A61B5/0095 ,  A61B5/0075 ,  A61B5/14542 ,  A61B5/14551 ,  A61B5/7257 ,  G01N21/1702 ,  G01N29/2418 ,  G01N2291/02466 ,  H01S3/061 ,  H01S3/08 ,  H01S3/092 ,  H01S3/1062 ,  H01S3/11

Abstract: A pulse laser beam is emitted in a desired wavelength sequence using a laser light source unit. A Q switch and a birefringent filter are inserted into an optical resonator including a pair of mirrors and facing each other with a laser rod interposed therebetween. The birefringent filter changes an oscillation wavelength of the optical resonator in association with rotational displacement. The rotation control unit rotates the birefringent filter at a predetermined rotation speed depending on the number of wavelengths included in the wavelength sequence of the pulse laser beam to be emitted. An emission control unit irradiates the laser rod with excitation light, and then turns on the Q switch at a timing when a rotational-displacement-position of the birefringent filter is set to a position corresponding to the wavelength of the pulse laser beam to be emitted, to cause the pulse laser beam to be emitted.

Abstract translation: 使用激光光源单元以期望的波长顺序发射脉冲激光束。 将Q开关和双折射滤光器插入到包括一对反射镜的光学谐振器中并且彼此相对并且其间插入激光棒。 双折射滤波器与旋转位移相关联地改变光谐振器的振荡波长。 旋转控制单元根据要发射的脉冲激光束的波长序列中包括的波长的数量以预定转速旋转双折射滤光器。 发射控制单元用激发光照射激光棒，然后在将双折射滤光器的旋转位移位置设置为与要发射的脉冲激光束的波长相对应的位置的时刻接通Q开关 以使脉冲激光束发射。