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1. 发明公开

EP3335627A1 PHOTOACOUSTIC CATHETER AND PHOTOACOUSTIC CATHETER SYSTEM 审中-公开
公开(公告)号：EP3335627A1
公开(公告)日：2018-06-20
申请号：EP17207252.2
申请日：2017-12-14
申请人： Hitachi, Ltd.
发明人： TANAKA, Tomohiko , IMAI, Ryo , TAKEZAKI, Taiichi , IKEDA, Teiichiro , NAKAMURA, Toshiteru , MATSUDA, Takahiro , ONOE, Shinsuke
IPC分类号： A61B5/00
CPC分类号： A61B5/0095 , A61B5/0084
摘要： It is an object to detect a sound wave without changing a direction of an acoustic element even if light is radiated in any direction. This object is achieved by means of a driving device 3 that drives so as to radiate light in a predetermined direction to an advancing direction of the catheter 101 and an acoustic element 1 that receives a sound wave generated by the radiated light, in which the acoustic element 1 is provided in a circumference direction of the catheter 101 and provided in a direction having a predetermined angle to an advancing direction of the light. Furthermore, a plurality of acoustic elements 1 are arranged in an array to form an acoustic element array 10.

2. 发明公开

EP3495054A3 ULTRASOUND IMAGING PROBE, MANUFACTURING METHOD THEREOF, AND ULTRASONIC IMAGING DEVICE 无效
公开(公告)号：EP3495054A3
公开(公告)日：2019-07-10
申请号：EP18207458.3
申请日：2018-11-21
申请人： Hitachi, Ltd.
发明人： TAKEZAKI, Taiichi , MACHIDA, Shuntaro , HASEGAWA, Hiroaki , TANAKA, Tomohiko , IMAI, Ryo , SEO, Yoshiho , MATSUDA, Takahiro , ONOE, Shinsuke
IPC分类号： B06B1/02 , A61B8/00 , A61B5/00
摘要： An ultrasound imaging probe capable of securing an assembly accuracy of and improving a resolution performance of an obtained image is provided.
A photoacoustic catheter 5 includes: a silicon substrate 5a which includes an ultrasonic transducer 5b for detecting an ultrasonic wave formed thereon and a through hole 5c passing through front and rear surfaces; an optical fiber 5d which oscillates a laser 7; a lens 5e which condenses the laser 7 and is arranged within the through hole 5c; a tubular housing 5f; a glass cover 5i which covers the lens 5e; and a resin 5g which fills a gap 10 between the through hole 5c and the lens 5e. Further, the silicon substrate 5a and the optical fiber 5d are fixed to a part of the housing 5f in the housing 5f.

3. 发明公开

EP3495054A2 ULTRASOUND IMAGING PROBE, MANUFACTURING METHOD THEREOF, AND ULTRASONIC IMAGING DEVICE 无效
公开(公告)号：EP3495054A2
公开(公告)日：2019-06-12
申请号：EP18207458.3
申请日：2018-11-21
申请人： Hitachi, Ltd.
发明人： TAKEZAKI, Taiichi , MACHIDA, Shuntaro , HASEGAWA, Hiroaki , TANAKA, Tomohiko , IMAI, Ryo , SEO, Yoshiho , MATSUDA, Takahiro , ONOE, Shinsuke
IPC分类号： B06B1/02
CPC分类号： A61B8/445 , A61B5/0095 , A61B5/6852 , A61B5/6876 , A61B8/12 , B06B1/0292
摘要： An ultrasound imaging probe capable of securing an assembly accuracy of and improving a resolution performance of an obtained image is provided.
A photoacoustic catheter 5 includes: a silicon substrate 5a which includes an ultrasonic transducer 5b for detecting an ultrasonic wave formed thereon and a through hole 5c passing through front and rear surfaces; an optical fiber 5d which oscillates a laser 7; a lens 5e which condenses the laser 7 and is arranged within the through hole 5c; a tubular housing 5f; a glass cover 5i which covers the lens 5e; and a resin 5g which fills a gap 10 between the through hole 5c and the lens 5e. Further, the silicon substrate 5a and the optical fiber 5d are fixed to a part of the housing 5f in the housing 5f.

4. 发明公开

EP3111850A1 ULTRASONIC IMAGE PICKUP DEVICE AND METHOD 审中-公开
标题翻译：超声波发生器
公开(公告)号：EP3111850A1
公开(公告)日：2017-01-04
申请号：EP15754706.8
申请日：2015-01-19
申请人： Hitachi, Ltd.
发明人： TANAKA, Tomohiko , OKADA, Takashi
IPC分类号： A61B8/06 , A61B8/14
CPC分类号： A61B8/06 , A61B5/0402 , A61B8/0883 , A61B8/14 , A61B8/463 , A61B8/483 , A61B8/488 , A61B8/5207 , A61B8/5246
摘要： Provided is an ultrasound imaging apparatus that is cable of estimating a three-dimensional effect of a blood flow, by using blood-flow velocity information obtained by a color Doppler method, and presenting diagnostic information into which the three-dimensional effect is reflected. The ultrasound imaging apparatus of the present invention is provided with an ultrasound probe configured to transmit ultrasound waves to a test object and to receive echo signals reflected from the test object, and a signal processor configured to process the echo signals received by the ultrasound probe, and the signal processor estimates the three-dimensional effect of the blood flow velocity, from a difference between a first blood flow velocity estimated from the echo signals by a first method, and a second blood flow velocity estimated by a second method which is different from the first method, and generates diagnostic information into which the three-dimensional effect is reflected.
摘要翻译：提供一种超声成像装置，其是通过使用通过彩色多普勒法获得的血流速度信息和呈现反映了三维效果的诊断信息来估计血流的三维效果的电缆。本发明的超声波成像装置设置有：超声波探头，被配置为将超声波传送到测试对象并接收从测试对象反射的回波信号;以及信号处理器，被配置为处理由超声波探头接收的回波信号，并且信号处理器根据第一种方法从回波信号估计的第一血流速度与通过与第二种方法不同的第二种方法估计的第二血流速度之间的差异来估计血流速度的三维效应并且产生反映三维效果的诊断信息。

5. 发明授权

EP3308714B1 ULTRASONIC IMAGING APPARATUS AND METHOD FOR MEASURING HARDNESS 有权转让
公开(公告)号：EP3308714B1
公开(公告)日：2019-12-11
申请号：EP17195843.2
申请日：2017-10-11
申请人： Hitachi, Ltd.
发明人： TANAKA, Tomohiko , MARUOKA, Takashi
IPC分类号： A61B8/08 , A61B8/14

6. 发明公开

EP3482692A1 SPECTRUM ANALYSIS DEVICE, SPECTRUM ANALYSIS METHOD, AND ULTRASONIC IMAGING DEVICE 审中-公开
公开(公告)号：EP3482692A1
公开(公告)日：2019-05-15
申请号：EP16908133.8
申请日：2016-07-05
申请人： Hitachi, Ltd.
发明人： HIROSHIMA, Misaki , TANAKA, Tomohiko , TANAKA, Chizue , IKEDA, Teiichiro
IPC分类号： A61B8/14
摘要： Accuracy of spectrum analysis improves, and further reliability of information indicating tissue characterization of a living organ improves.
A computation region, which is a target of frequency spectrum analysis, and a window region are set on a received signal. A plurality of received signals of the window region are weighted and the frequency spectrum analysis is performed on the received signals of the window region after the weighting. The weighting is performed by using weight distribution corresponding to strength distribution generated in the received signals of the window region in a case of assuming that the ultrasound transmitted from the plurality of transducers propagates as waves in the subject, reaches a target region in the subject which corresponds to the computation region, is reflected from the target region, then further propagates as waves in the subject, and reaches the plurality of transducers.

7. 发明公开

EP3427641A1 PHOTOACOUSTIC CATHETER SYSTEM AND CONTROL METHOD OF PHOTOACOUSTIC CATHETER SYSTEM 审中-公开
公开(公告)号：EP3427641A1
公开(公告)日：2019-01-16
申请号：EP18162336.4
申请日：2018-03-16
申请人： Hitachi, Ltd.
发明人： TANAKA, Tomohiko , TAKEZAKI, Taiichi , IMAI, Ryo , SEO, Yoshiho , MATSUDA, Takahiro , ONOE, Shinsuke , SAKAMOTO, Takeshi , TANAKA, Kimio , KAWAMURA, Ryo , SEYA, Yoshiyuki , WATANABE, Yutaka
IPC分类号： A61B5/00
摘要： Treatment with an acoustic catheter is facilitated. A photoacoustic catheter system (C, C1) includes: an imaging laser beam generator (2) that generates an imaging laser beam (R1) used for imaging; a treatment laser beam generator (3) that generates a treatment laser beam (R2) used for treatment; a driver (19) that provides driving to cause the imaging laser beam (R1) and the treatment laser beam (R2) to be emitted in a predetermined direction with respect to an advancing direction of a catheter; an acoustic element (18) that receives an acoustic wave generated due to irradiation of the imaging laser beam (R1); and a treatment laser beam controller (7), wherein the treatment laser beam controller (7) synchronously emits the imaging laser beam (R1) and the treatment laser beam (R2) so as to be directionally aligned with each other.

8. 发明公开

EP3308714A1 ULTRASONIC IMAGING APPARATUS AND METHOD FOR MEASURING HARDNESS 有权转让
标题翻译：超声波成像装置和用于测量硬度的方法
公开(公告)号：EP3308714A1
公开(公告)日：2018-04-18
申请号：EP17195843.2
申请日：2017-10-11
申请人： Hitachi, Ltd.
发明人： TANAKA, Tomohiko , MARUOKA, Takashi
IPC分类号： A61B8/08 , A61B8/14
摘要： [Problem] There is provided an ultrasonic imaging apparatus and method capable of measuring the hardness of an organ in consideration of the vibration mode of the organ.
[Means for Resolution] When an ultrasonic signal is transmitted to an organ caused to vibrate and the hardness of the organ is measured by using an ultrasonic reception signal received from the organ, the speeds of at least two locations on the organ are calculated by using the ultrasonic reception signal, and the speeds of the two locations are analyzed to identify a plurality of vibration modes of the organ 30 and a vibration frequency in each of the vibration mode. On the other hand, a constant used to calculate the hardness is calculated in advance for each of the plurality of vibration modes. The hardness of the organ 30 is calculated by using the identified frequencies of the vibration modes, information on the size of the organ 30, and a constant calculated in advance for each of the plurality of vibration modes.
摘要翻译：提供一种能够考虑器官的振动模式来测量器官的硬度的超声波成像设备和方法。 [用于分辨率的手段]当超声波信号被发送到使得振动的器官并且通过使用从器官接收到的超声波接收信号来测量器官的硬度时，通过使用器官中的至少两个位置的速度来计算器官上的至少两个位置的速度超声波接收信号和两个位置的速度被分析以识别器官30的多个振动模式和每个振动模式中的振动频率。另一方面，对于多个振动模式中的每一个，预先计算用于计算硬度的常数。通过使用所识别的振动模式的频率，关于器官30的尺寸的信息以及针对多个振动模式中的每一个预先计算的常数来计算器官30的硬度。

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