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    • 7. 发明授权
    • Ultrasonic flowmeter and ultrasonic generator/detector
    • 超声波流量计和超声波发生器/检测器
    • US06508133B1
    • 2003-01-21
    • US09077798
    • 1998-11-24
    • Akihisa AdachiAtsushi WatanabeToshiharu SatoNaoko AzumaMasahiko Hashimoto
    • Akihisa AdachiAtsushi WatanabeToshiharu SatoNaoko AzumaMasahiko Hashimoto
    • G01F120
    • G01F1/662
    • 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.
    • 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。
    • 8. 发明授权
    • Ultrasonic probe for transmission and reception of ultrasonic wave and
ultrasonic diagnostic apparatus including ultrasonic probe
    • 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
    • US5377682A
    • 1995-01-03
    • US941580
    • 1992-09-04
    • Shinichiro UenoMasahiko HashimotoAkihisa AdachiHaruo OhmoriToshiharu Sato
    • Shinichiro UenoMasahiko HashimotoAkihisa AdachiHaruo OhmoriToshiharu Sato
    • A61B8/12G01S15/89G10K11/35
    • A61B8/12A61B8/445A61B8/4461G01S15/894G10K11/355A61B8/4209
    • 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.
    • 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。
    • 9. 发明申请
    • ULTRASONIC PROBE AND ULTRASONIC DIAGNOSTIC EQUIPMENT USING SAME
    • 超声探头和超声波诊断设备
    • US20120065515A1
    • 2012-03-15
    • US13320472
    • 2010-05-14
    • Toshiharu SatoEiichi Ookawa
    • Toshiharu SatoEiichi Ookawa
    • A61B8/14
    • G10K11/355A61B8/12A61B8/4461
    • 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.
    • 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。