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    Ultrasonic flowmeter and ultrasonic generator/detector
    1.
    发明授权
    Ultrasonic flowmeter and ultrasonic generator/detector 有权
    超声波流量计和超声波发生器/检测器

    公开(公告)号：US06508133B1

    公开(公告)日：2003-01-21

    申请号：US09077798

    申请日：1998-11-24

    申请人： Akihisa Adachi ,  Atsushi Watanabe ,  Toshiharu Sato ,  Naoko Azuma ,  Masahiko Hashimoto

    发明人： Akihisa Adachi ,  Atsushi Watanabe ,  Toshiharu Sato ,  Naoko Azuma ,  Masahiko Hashimoto

    IPC分类号： G01F120

    CPC分类号： G01F1/662

    摘要： An ultrasonic flowmeter includes a flow passage and an ultrasonic transducer for measuring the flow rate in the flow passage wherein the ultrasonic transducer is equipped with a piezoelectric material having electrodes on the opposed surfaces thereof, one of which is used as an ultrasonic wave transmitting/receiving surface and faces the flow passage. The lengths of the sides of the transmitting/receiving surface is so determined that the vibration in the electrode direction is the main mode, preferably that the ratio of the lengths of the sides of the transmission/reception surface to the thickness is not greater than 0.8. Consequently, because the flow meter uses the thickness longitudinal vibration of the piezoelectric material as the main mode, the ultrasonic transducer has a high sensitivity, a high speed response and a small size and the ultrasonic flow meter has a high accuracy and is compact.

    摘要翻译： 超声波流量计包括流路和超声波换能器，用于测量流路中的流量，其中超声波换能器配备有在其相对表面上具有电极的压电材料，其中一个被用作超声波发射/接收 表面并面向流路。 发射/接收表面的侧面的长度被确定为电极方向上的振动是主要模式，优选地，发射/接收表面的侧面的长度与厚度的比率不大于0.8 。 因此，由于流量计使用压电材料的厚度纵向振动作为主要模式，超声波换能器具有高灵敏度，高速度响应和小尺寸，并且超声波流量计具有高精度并且紧凑。

    Ultrasonic probe for transmission and reception of ultrasonic wave and ultrasonic diagnostic apparatus including ultrasonic probe
    2.
    发明授权
    Ultrasonic probe for transmission and reception of ultrasonic wave and ultrasonic diagnostic apparatus including ultrasonic probe 失效
    超声波探头用于超声波的发射和接收以及包括超声波探头的超声波诊断装置

    公开(公告)号：US5377682A

    公开(公告)日：1995-01-03

    申请号：US941580

    申请日：1992-09-04

    申请人： Shinichiro Ueno ,  Masahiko Hashimoto ,  Akihisa Adachi ,  Haruo Ohmori ,  Toshiharu Sato

    发明人： Shinichiro Ueno ,  Masahiko Hashimoto ,  Akihisa Adachi ,  Haruo Ohmori ,  Toshiharu Sato

    IPC分类号： A61B8/12 ,  G01S15/89 ,  G10K11/35

    CPC分类号： A61B8/12 ,  A61B8/445 ,  A61B8/4461 ,  G01S15/894 ,  G10K11/355 ,  A61B8/4209

    摘要： An ultrasonic probe to be used for an ultrasonic diagnostic apparatus for obtaining an ultrasonic image. The ultrasonic probe comprises a catheter having a hollow tubing structure, a joint having a tubing structure and arranged to be at its one end portion connected to a tip portion of said catheter, a bearing connected to the other end portion of the joint, a rotating shaft inserted into the bearing to be rotatable and arranged so that a portion of the rotating shaft contacts with one end portion of the bearing, and a rotator connected to the rotating shaft and arranged so that one end portion of the rotator contacts with the other end portion of the bearing so that the bearing is interposed and supported between the portion of the rotating shaft and the rotator. An ultrasonic transducer is inserted into the rotator for transmitting and receiving an ultrasonic wave, a torque transmission shaft having a hollow structure is at its one end portion connected to the rotating shaft, and a guide wire is inserted into the hollow of the torque transmission shaft. A rotating force generated by a drive section is applied through the torque transmission shaft to the ultrasonic transducer whereby the ultrasonic transducer rotationally driven to perform a radial scanning operation. This arrangement allows a free movement of the guidewire within the catheter so that the catheter can easily be lead along the guidewire up to a target portion within a blood vessel.

    摘要翻译： 一种用于获得超声波图像的超声波诊断装置的超声波探头。 超声波探头包括具有中空管道结构的导管，具有管道结构的接头，并且布置成在其连接到所述导管的尖端部分的一个端部处，连接到接头的另一端部的轴承，旋转 插入到轴承中的轴能够旋转并且布置成使得旋转轴的一部分与轴承的一个端部接触，并且旋转体连接到旋转轴并且被布置成使得旋转体的一个端部与另一端接触 轴承的一部分，使得轴承被插入并支撑在旋转轴的部分和旋转体之间。 将超声波换能器插入用于发送和接收超声波的旋转器中，具有中空结构的转矩传递轴在其与旋转轴连接的一端部处，并且引导线插入转矩传递轴的中空部 。 由驱动部产生的旋转力通过扭矩传递轴施加到超声波换能器，由此超声波换能器被旋转驱动以执行径向扫描操作。 这种布置允许导管在导管内的自由运动，使得导管可以容易地沿着导丝引导直到血管内的目标部分。

    Ultrasonic flowmeter having reduced phase difference
    4.
    发明授权
    Ultrasonic flowmeter having reduced phase difference 有权
    超声波流量计具有减小的相位差

    公开(公告)号：US06216544B1

    公开(公告)日：2001-04-17

    申请号：US09202532

    申请日：1998-12-18

    申请人： Akihisa Adachi ,  Yuji Nakabayashi ,  Masahiko Hashimoto ,  Toshiharu Sato ,  Shigeru Iwanaga

    发明人： Akihisa Adachi ,  Yuji Nakabayashi ,  Masahiko Hashimoto ,  Toshiharu Sato ,  Shigeru Iwanaga

    IPC分类号： G01F166

    CPC分类号： G01F1/662

    摘要： An ultrasonic flowmeter includes a flow path defined by four wall sections, a flow measurement section, a calculation section and a pair of ultrasonic oscillators for transmitting and receiving an ultrasonic wave over a distance. The flow path is configured to reduce the influence of a phase difference, which results from the varying propagation distances of a direct wave and a reflected wave, by changing one or more of the flow measurement section configuration, the ultrasonic wave frequency, the orientation of the ultrasonic oscillators, and the distance between the pair of ultrasonic oscillators. A measurement section is suitably configured to measure the propagation time of the ultrasonic wave propagating between the pair of ultrasonic oscillators. Additionally, a calculation section is suitably configured to receive measurements from the measurement section and to calculate the fluid flow in the flow measurement section.

    摘要翻译： 超声波流量计包括由四个壁部分限定的流动路径，流量测量部分，计算部分和一对用于在一定距离上发送和接收超声波的超声波振荡器。 流路被配置为通过改变流量测量部分配置，超声波频率，超声波频率的方向来减少由直接波和反射波的变化的传播距离引起的相位差的影响 超声波振荡器和一对超声波振荡器之间的距离。 测量部适当地配置为测量在一对超声波振荡器之间传播的超声波的传播时间。 此外，计算部适当地构成为从测量部接收测量值，并计算流量测量部中的流体流量。

    ULTRASONIC PROBE AND ULTRASONIC DIAGNOSTIC EQUIPMENT USING SAME
    10.
    发明申请
    ULTRASONIC PROBE AND ULTRASONIC DIAGNOSTIC EQUIPMENT USING SAME 有权
    超声探头和超声波诊断设备

    公开(公告)号：US20120065515A1

    公开(公告)日：2012-03-15

    申请号：US13320472

    申请日：2010-05-14

    申请人： Toshiharu Sato ,  Eiichi Ookawa

    发明人： Toshiharu Sato ,  Eiichi Ookawa

    IPC分类号： A61B8/14

    CPC分类号： G10K11/355 ,  A61B8/12 ,  A61B8/4461

    摘要： An ultrasonic diagnostic equipment of the present invention includes: an ultrasonic transducer body transmitting and receiving ultrasonic waves; a swing shaft (4) attached integrally to the ultrasonic transducer body; a swing shaft pulley (5) provided on the swing shaft; a motor having an output shaft (7); an output shaft pulley (8) provided on the output shaft; a belt (9) wound around the swing shaft pulley and the output shaft pulley; a plurality of belt fixing screws (11, 12) fixing the belt to the swing shaft pulley and the output shaft pulley. The belt is divided into two regions at the belt fixing screws so as to allow the regions to have different natural frequencies.With this configuration, it is possible to provide a highly reliable ultrasonic probe and an ultrasonic diagnostic equipment using the ultrasonic probe.

    摘要翻译： 本发明的超声波诊断装置包括：超声波换能器体，发送和接收超声波; 与所述超声波换能器主体一体地安装的摆动轴（4） 设置在摆动轴上的摆动轴滑轮（5）; 具有输出轴（7）的马达; 输出轴滑轮（8），设置在输出轴上; 围绕摆动轴滑轮和输出轴滑轮缠绕的皮带（9）; 多个皮带固定螺钉（11,12），其将皮带固定到摆动轴滑轮和输出轴滑轮。 皮带在皮带固定螺钉上分为两个区域，以使区域具有不同的固有频率。 利用该结构，可以提供使用超声波探头的高度可靠的超声波探头和超声波诊断装置。