公开(公告)号：US20190216425A1

公开(公告)日：2019-07-18

申请号：US16359680

申请日：2019-03-20

Applicant: FUJIFILM Corporation

Inventor： Katsuya YAMAMOTO ,  Kaku IRISAWA ,  Dai MURAKOSHI

IPC: A61B8/13 ,  A61B5/00 ,  G01N29/24 ,  A61B8/06

CPC classification number: A61B8/13 ,  A61B5/0095 ,  A61B8/06 ,  G01N29/2418

Abstract: A photoacoustic image generation apparatus includes: a puncture needle that generates photoacoustic waves; an ultrasound probe that detects the photoacoustic waves and reflected ultrasonic waves reflected by the transmission of ultrasonic waves; a Processor that generates a Doppler signal on the basis of the reflected ultrasonic waves from a sample gate as a Doppler measurement target, that generates a photoacoustic image on the basis of the photoacoustic waves, and that detects the position of a tip portion of the puncture needle on the basis of the photoacoustic image; and a controller that sets the sample gate at a position which is a predetermined distance away from the detected position of the tip portion of the puncture needle and sets the sample gate, following movement of the tip portion of the puncture needle, in a state in which the distance is maintained.

公开(公告)号：US20190209018A1

公开(公告)日：2019-07-11

申请号：US16357036

申请日：2019-03-18

Applicant: FUJIFILM Corporation

Inventor： Katsuya YAMAMOTO ,  Kaku IRISAWA ,  Dai MURAKOSHI

IPC: A61B5/00 ,  A61B17/34

CPC classification number: A61B5/0095 ,  A61B5/6848 ,  A61B8/06 ,  A61B8/13 ,  A61B10/02 ,  A61B17/3403 ,  A61B2010/045 ,  A61B2090/306 ,  A61B2576/00

Abstract: A photoacoustic image generation apparatus includes: a puncture needle that generates photoacoustic waves; an ultrasound probe that detects the photoacoustic waves and reflected ultrasonic waves reflected by the transmission of ultrasonic waves; a processor that generates a color Doppler signal of a region of interest as a color Doppler measurement target, generates a photoacoustic image on the basis of the photoacoustic waves, and detects the position of a tip portion of the puncture needle on the basis of the photoacoustic image; and a controller that sets the region of interest such that the position of the tip portion of the puncture needle and a center position of the region of interest are separated from each other by a predetermined distance and sets the region of interest, following the movement of the tip portion of the puncture needle, in a state in which the distance is maintained.

公开(公告)号：US20170296062A1

公开(公告)日：2017-10-19

申请号：US15639026

申请日：2017-06-30

Applicant: FUJIFILM Corporation

Inventor： Kaku IRISAWA ,  Dai MURAKOSHI ,  Tetsuro EBATA ,  Shoji HARA

IPC: A61B5/00 ,  A61B8/06 ,  A61B8/08 ,  A61B5/026 ,  G06T7/00 ,  A61B19/00

CPC classification number: A61B5/0095 ,  A61B5/026 ,  A61B5/0261 ,  A61B5/6843 ,  A61B8/06 ,  A61B8/0891 ,  A61B2562/14

Abstract: In a photoacoustic measurement apparatus and a photoacoustic measurement system, it is possible to generate blood flow information using a photoacoustic image without requiring a separate tourniquet. A light source emits measurement light. A probe detects a photoacoustic wave generated in a subject after measurement light is emitted to the subject in each of the avascularized condition in which the subject is avascularized and the non-avascularized condition in which the subject is not avascularized. Photoacoustic image generation unit generates a photoacoustic image based on the detection signal of the photoacoustic wave. Blood flow information generation unit generates blood flow information based on the signal value of a photoacoustic image in a region of interest set in the photoacoustic image. The avascularization of the subject is performed by pressing the probe against the subject.

公开(公告)号：US20130235973A1

公开(公告)日：2013-09-12

申请号：US13871350

申请日：2013-04-26

Applicant: FUJIFILM CORPORATION

Inventor： Dai MURAKOSHI ,  Toshitaka AGANO ,  Wataru ITO ,  Shinji IMAI

IPC: A61B6/00

CPC classification number: A61B6/484 ,  A61B6/4233 ,  A61B6/4291 ,  A61B6/4464 ,  A61B6/502 ,  G01N23/046 ,  G01N2223/419 ,  G01N2223/612 ,  G01T1/246 ,  G21K2207/005

Abstract: A radiographic phase-contrast imaging apparatus obtains a phase-contrast image using two gratings including the first grating and the second grating. The first and second gratings are adapted to form a moire pattern when a periodic pattern image formed by the first grating is superimposed on the second grating. Based on the moire pattern detected by the radiographic image detector, image signals of the fringe images, which correspond to pixel groups located at different positions with respect to a predetermined direction, are obtained by obtaining image signals of pixels of each pixel group, which includes pixels arranged at predetermined intervals in the predetermined direction, as the image signal of each fringe image, where the predetermined direction is a direction parallel to or intersecting a period direction of the moire pattern other than a direction orthogonal to the period direction. Then, a phase-contrast image is generated based on the obtained fringe images.

Abstract translation: 射线相位成像装置使用包括第一光栅和第二光栅的两个光栅获得相位对比度图像。 当由第一光栅形成的周期性图案图像叠加在第二光栅上时，第一和第二光栅适于形成莫尔图案。 基于由放射线照相图像检测器检测到的波纹图案，通过获得每个像素组的像素的图像信号，获得与相对于预定方向位于不同位置处的像素组对应的条纹图像的图像信号， 作为每个条纹图像的图像信号，其中预定方向是与波纹图案的周期方向平行或相交的方向，而不是与周期方向正交的方向。 然后，基于获得的条纹图像生成相位对比图像。

公开(公告)号：US20190209125A1

公开(公告)日：2019-07-11

申请号：US16352396

申请日：2019-03-13

Applicant: FUJIFILM Corporation

Inventor： Katsuya YAMAMOTO ,  Kaku IRISAWA ,  Dai MURAKOSHI

IPC: A61B8/13 ,  A61B8/00 ,  A61B5/00 ,  G01N29/24

CPC classification number: A61B8/13 ,  A61B5/0095 ,  A61B5/6848 ,  A61B8/42 ,  G01N29/2418

Abstract: A photoacoustic image generation apparatus includes: a puncture needle including a photoacoustic wave generation portion that absorbs light and generates photoacoustic waves; an acoustic wave detection unit having a piezoelectric element array in which a plurality of piezoelectric elements that detect the photoacoustic waves are arranged; a controller configured to specify some piezoelectric element groups in the piezoelectric element array and switches the piezoelectric element groups to acquire detection signals of all receiving regions in the piezoelectric element array; and a processor configured to generate a photoacoustic image on the basis of the detection signals of the photoacoustic waves, detect a position of a tip portion of the puncture needle on the basis of the photoacoustic image. The controller specifies the piezoelectric element groups on the basis of the position of the tip portion of the puncture needle detected by the processor.

公开(公告)号：US20190008393A1

公开(公告)日：2019-01-10

申请号：US16128845

申请日：2018-09-12

Applicant: FUJIFILM Corporation

Inventor： Kaku IRISAWA ,  Dai MURAKOSHI

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

Abstract: A photoacoustic measurement apparatus includes: a main light source; a sub-light source; a light guide member that guides the light which has been emitted from the main light source and the sub-light source and has been incident on a base end to a leading end; an insert of which at least a leading end portion is inserted into a subject and which includes at least the leading end of the light guide member and a light absorption member that absorbs the pulsed laser light, and generates photoacoustic waves; and a photoacoustic wave detection unit that detects the photoacoustic waves. The photoacoustic measurement apparatus has, as an operation mode, a failure detection mode that drives the sub-light source and detects a failure of a photoacoustic wave generation unit including the light guide member and the light absorption member.

公开(公告)号：US20190000420A1

公开(公告)日：2019-01-03

申请号：US16104791

申请日：2018-08-17

Applicant: FUJIFILM Corporation

Inventor： Kaku IRISAWA ,  Dai MURAKOSHI ,  Tomoki INOUE

IPC: A61B8/00 ,  A61B5/00 ,  A61B8/14 ,  A61B8/06

Abstract: A first acoustic wave image is displayed in a first display color, and a second acoustic wave image is displayed in a second display color different from the first display color. A group of first menu icons for designating a process to be performed on the first acoustic wave image and a group of second menu icons for designating a process to be performed on the second acoustic wave image are displayed on menu icon display means. The group of first menu icons is displayed in the first display color, and the group of second menu icons is displayed in the second display color.

公开(公告)号：US20180008369A1

公开(公告)日：2018-01-11

申请号：US15711807

申请日：2017-09-21

Applicant: FUJIFILM Corporation

Inventor： Dai MURAKOSHI ,  Kaku IRISAWA

IPC: A61B5/00 ,  A61B3/09 ,  A61B3/10 ,  A61B1/00

CPC classification number: A61B90/35 ,  A61B1/00071 ,  A61B3/09 ,  A61B3/10 ,  A61B5/0095 ,  A61B5/0097 ,  A61B8/0841 ,  A61B8/14 ,  A61B8/483 ,  A61B8/5246 ,  A61B8/5253 ,  A61B10/0275 ,  A61B90/37 ,  A61B2090/306 ,  A61B2090/309 ,  A61B2090/378

Abstract: The length of an optical fiber from a portion aligned with the rear end of an insertion needle to a fixing portion is a length obtained by adding a predetermined extra length to a linear distance between the rear end of the insertion needle in a case where the insertion needle is located at a protruding position (insertion position) and an optical fiber fixing position of a grip portion. There is provided a fiber feeding adjustment mechanism that suspends the optical fiber with a first suspension portion and a second suspension portion so as to make a detour in a state in which there is no slack, and changes the detour length continuously according to the movement of the insertion needle in a case where the insertion needle moves between the retracted position and the protruding position, thereby maintaining a state in which the optical fiber is suspended without slack.

公开(公告)号：US20170296061A1

公开(公告)日：2017-10-19

申请号：US15636947

申请日：2017-06-29

Applicant: FUJIFILM Corporation

Inventor： Dai MURAKOSHI ,  Kaku IRISAWA ,  Tetsuro EBATA ,  Shoji HARA

IPC: A61B5/00 ,  A61B8/08 ,  A61B8/00

CPC classification number: A61B5/0095 ,  A61B5/7225 ,  A61B8/085 ,  A61B8/13 ,  A61B8/461 ,  A61B8/5207

Abstract: In a photoacoustic measurement apparatus and a photoacoustic measurement system, blood flow information in a desired region can be generated using a photoacoustic image. A light source emits measurement light. A probe detects a photoacoustic wave generated in a subject after measurement light is emitted to the subject in each of the avascularized condition in which the subject is avascularized and the non-avascularized condition in which the subject is not avascularized. Photoacoustic image generation unit generates a photoacoustic image based on the detection signal of the photoacoustic wave. Blood flow information generation unit generates blood flow information based on the signal value of a photoacoustic image in a region of interest set in the photoacoustic image.

公开(公告)号：US20160135689A1

公开(公告)日：2016-05-19

申请号：US15001416

申请日：2016-01-20

Applicant: FUJIFILM Corporation

Inventor： Dai MURAKOSHI

IPC: A61B5/00

CPC classification number: A61B5/0095 ,  A61B5/0035 ,  A61B5/6848 ,  A61B8/0841 ,  A61B8/4416 ,  A61B2576/00

Abstract: At least a tip portion of a puncture needle 15 is inserted into a subject. The puncture needle 15 includes a light guide member which guides light from a laser unit 13, and a light emission unit which is provided in the vicinity of the tip portion and emits light guided by the light guide member, and generates a photoacoustic wave caused by light from the light emission unit in the tip portion. A probe 11 detects the photoacoustic wave from the puncture needle 15 in a state where the puncture needle 15 is inserted into the subject. A Photoacoustic image generation unit 25 generates a photoacoustic image based on the detected photoacoustic wave. A Light source control unit 30 controls the amount of light emitted from the light emission unit based on the photoacoustic image.

Abstract translation: 至少将穿刺针15的前端部插入到被检体内。 穿刺针15包括导光构件，其引导来自激光单元13的光，以及发光单元，其设置在尖端部附近，并且发射由导光构件引导的光，并且产生由 来自前端部的发光单元的光。 探针11在将穿刺针15插入被检体的状态下，检测来自穿刺针15的光声波。 光声图像生成单元25基于检测到的光声波生成光声图像。 光源控制单元30基于光声图像来控制从发光单元发射的光的量。