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21.发明申请公开(公告)号：US20200229789A1
公开(公告)日：2020-07-23
申请号：US16843646
申请日：2020-04-08
Applicant: FUJIFILM Corporation
Inventor： Katsuya YAMAMOTO , Kaku IRISAWA
Abstract: An ultrasound diagnostic apparatus includes a probe having an array transducer, a transmitting unit that transmits an ultrasound beam from the array transducer, an insertion device insertable into a subject and having a photoacoustic wave generation unit, a light source that irradiates the photoacoustic wave generation unit with light to generate a photoacoustic wave, a sequence control unit that performs control so that a photoacoustic wave is received each time the array transducer receives an ultrasound echo along a predetermined number of scan lines, an insertion depth detection unit that detects an insertion depth of the insertion device on the basis of a photoacoustic wave reception signal, and a notification unit that provides a notification to a user in a case where the insertion depth of the insertion device is deeper than a determined depth.
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22.发明申请公开(公告)号：US20190223733A1
公开(公告)日：2019-07-25
申请号：US16353300
申请日：2019-03-14
Applicant: FUJIFILM Corporation
Inventor： Kaku IRISAWA
Abstract: An insert includes: a puncture needle main body which has an opening at a tip and is formed in a hollow shape and of which at least a tip portion is inserted into a subject; an optical fiber that is provided in a hollow portion of the puncture needle main body along a length direction of the puncture needle main body; and a photoacoustic wave generation unit that is provided at a light emission end of the optical fiber which is disposed on a tip side of the puncture needle main body, absorbs light emitted from the light emission end, and generates photoacoustic waves. A through-hole is formed in a wall portion forming the hollow portion and the photoacoustic wave generation unit is fixed to the through-hole.
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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
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.
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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
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.
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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
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.
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Patent Agency Ranking
公开(公告)号：US20180132729A1
公开(公告)日：2018-05-17
申请号：US15855487
申请日：2017-12-27
Applicant: FUJIFILM Corporation
Inventor： Kaku IRISAWA
CPC classification number: A61B5/0095 , A61B5/6848 , A61B8/13 , A61B17/3417 , A61B2576/00
Abstract: There are provided a photoacoustic image generation apparatus and an insert that separately acquire both positional information and surrounding environment information of the insert. A puncture needle is at least partially inserted into a subject. An optical fiber guides light with a first wavelength and light with a second wavelength which are incident while being switched. The light guided by the optical fiber is emitted from a light emitting portion. A light absorption member absorbs the light with the first wavelength emitted from the light emitting portion, generates photoacoustic waves, and transmits the light with the second wavelength emitted from the light emitting portion.
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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
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.
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公开(公告)号：US20170360304A1
公开(公告)日：2017-12-21
申请号：US15689390
申请日：2017-08-29
Applicant: FUJIFILM Corporation
Inventor： Atsushi HASHIMOTO , Kaku IRISAWA
CPC classification number: A61B5/0095 , A61B5/0035 , A61B8/0891 , A61B8/13 , A61B8/145 , A61B8/4416 , A61B8/4444 , A61B2562/0242 , G01N29/2406
Abstract: In a photoacoustic measurement apparatus and a probe, artifacts due to photoacoustic waves generated in a surface portion of a subject are reduced without increasing the repetition period of photoacoustic measurement. A measurement light emitting unit emits measurement light toward a subject. An acoustic wave detector detects photoacoustic waves generated within the subject due to the measurement light. A correction light source emits correction light toward the subject. A light intensity detector detects reflected light generated by reflection of the correction light, which is emitted toward the subject, from the subject. In a probe, the correction light source and the light intensity detector are disposed between the measurement light emitting unit and the acoustic wave detector.
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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
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.
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30.发明申请PHOTOACOUSTIC IMAGE GENERATION APPARATUS, SIGNAL PROCESSING DEVICE, AND PHOTOACOUSTIC IMAGE GENERATION METHOD 审中-公开光电影像发生装置，信号处理装置和光电影像生成方法公开(公告)号：US20170071475A1
公开(公告)日：2017-03-16
申请号：US15358863
申请日：2016-11-22
Applicant: FUJIFILM Corporation
Inventor： Kaku IRISAWA
CPC classification number: A61B5/0095 , A61B1/00006 , A61B1/07 , A61B5/061 , A61B5/6848 , A61B8/08 , A61B8/12 , A61B8/4416 , A61B17/3403 , A61B2017/3413 , A61B2576/00
Abstract: An insertion needle 15 has a photoacoustic wave generating portion that generates a photoacoustic wave by absorbing light emitted from a laser unit 13. A photoacoustic image generation unit 25 generates a photoacoustic image based on the detection signal of the photoacoustic wave emitted from the insertion needle 15. The sound source position detection unit 30 detects the photoacoustic wave generating source from the photoacoustic image. A first signal acquisition unit 31 acquires an S value, and a second signal acquisition unit 32 acquires an N value. A light emission control unit 33 controls the number of light emissions and the light emission interval of the laser unit 13 for one photoacoustic image generation based on the ratio between the S value and the N value. The photoacoustic image generation unit 25 generates a photoacoustic image by at least adding the detection signals of photoacoustic waves corresponding to the number of light emissions.
Abstract translation: 插入针15具有通过吸收从激光单元13发出的光而产生光声波的光声波产生部。光声图像生成部25基于从插入针15发出的光声的检测信号，生成光声图像 声源位置检测单元30从光声图像检测光声波发生源。 第一信号获取单元31获取S值，第二信号获取单元32获取N值。 发光控制单元33基于S值和N值之间的比率来控制用于一次光声图像生成的激光单元13的发光次数和发光间隔。 光声图像生成单元25通过至少添加与光发射数相对应的光声波的检测信号来生成光声图像。
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