公开(公告)号：US20080218030A1

公开(公告)日：2008-09-11

申请号：US12103912

申请日：2008-04-16

申请人： Takaaki ASADA ,  Takayuki SHIMAMOTO ,  Koji MURATA ,  Mio FURUYA

发明人： Takaaki ASADA ,  Takayuki SHIMAMOTO ,  Koji MURATA ,  Mio FURUYA

IPC分类号： H01L41/00

CPC分类号： G10K9/122 ,  G01S7/521 ,  G01S15/931 ,  G01S2015/938 ,  G10K9/22

摘要： An ultrasonic transducer includes a cylindrical cap member having a bottom. A piezoelectric element is bonded to the inner side of a bottom portion of the cap member using a conductive adhesive or other suitable adhesive. An inner frame made of a material having an acoustic impedance greater than that of the cap member is fitted into the cap member so as to be in contact with a side portion, including the end portion, of the cap member. Through-holes are provided in the side portion of the inner frame. Lead wires are connected to the piezoelectric element and the inner frame, respectively. A sound absorber and a damper are inserted into the inner frame. The damper is in direct contact with the side portion of the cap member via the through-holes of the inner frame.

摘要翻译： 超声波换能器包括具有底部的圆柱形盖构件。 使用导电粘合剂或其它合适的粘合剂将压电元件结合到盖构件的底部的内侧。 由具有大于盖构件的声阻抗的材料制成的内框架被装配到盖构件中以便与帽构件的包括端部的侧部接触。 在内框架的侧部设有通孔。 引线分别连接到压电元件和内框架。 吸音器和阻尼器插入到内框架中。 阻尼器经由内框架的通孔与盖构件的侧部直接接触。

公开(公告)号：US20090195123A1

公开(公告)日：2009-08-06

申请号：US12425548

申请日：2009-04-17

申请人： Koji MURATA ,  Masato KOTANI ,  Takaaki ASADA ,  Takayuki SHIMAMOTO ,  Hiroyuki HIRANO ,  Mio FURUYA

发明人： Koji MURATA ,  Masato KOTANI ,  Takaaki ASADA ,  Takayuki SHIMAMOTO ,  Hiroyuki HIRANO ,  Mio FURUYA

IPC分类号： H01L41/053 ,  G10K9/122

CPC分类号： G10K9/122 ,  G01S7/521 ,  G01S15/931 ,  G10K9/22

摘要： An ultrasonic sensor includes a cylindrical outer case with a bottom and a piezoelectric element fixed to the inner side of the bottom portion of the outer case. A ring-shaped inner case having a central hole extending in the axial direction in the central portion thereof is disposed inside the sidewall portion of the outer case. A flat or substantially flat portion is provided around the central hole of the inner case, and a viscoelastic filler is arranged so as to extend from the central hole to the flat or substantially flat portion of the inner case. A tabular member is disposed on the flat or substantially flat portion so as to face the flat or substantially flat portion with the filler interposed therebetween. When the inner case vibrates, shear deformation occurs in the filler interposed between the flat or substantially flat portion and the tabular member since the tabular member is not substantially deformed, and the vibration is reduced by the viscoelastic damping effect.

摘要翻译： 超声波传感器包括具有底部的圆柱形外壳和固定到外壳的底部的内侧的压电元件。 具有在其中心部分沿轴向延伸的中心孔的环形内壳设置在外壳的侧壁部分的内侧。 在内壳的中心孔周围设置平坦或基本上平坦的部分，并且粘弹性填料被布置成从中心孔延伸到内壳的平坦或基本上平坦的部分。 板状构件设置在平坦或基本上平坦的部分上，以便面对平坦或基本上平坦的部分，填充物插入其间。 当内壳体振动时，由于平板状构件基本上不变形，插入在平坦部分或基本上平坦的部分之间的填料中产生剪切变形，并且通过粘弹性阻尼效应减小了振动。

公开(公告)号：US20110074246A1

公开(公告)日：2011-03-31

申请号：US12889457

申请日：2010-09-24

申请人： Junichi NISHIE ,  Takaaki ASADA ,  Mio FURUYA ,  Takayuki SHIMAMOTO ,  Kazuhiro EBARA

发明人： Junichi NISHIE ,  Takaaki ASADA ,  Mio FURUYA ,  Takayuki SHIMAMOTO ,  Kazuhiro EBARA

IPC分类号： H01L41/053

CPC分类号： G10K9/122

摘要： An ultrasonic transducer includes a case, a reflective portion, and a piezoelectric body. The case has a substantially cylindrical shape including one closed end in the center axis direction that defines a top. The piezoelectric body is disposed on the inner surface of the top of the case. The reflective portion is arranged to oppose and be spaced apart from the piezoelectric body. The distance between the piezoelectric body and the reflective portion is greater than the maximum displacement of the piezoelectric body and is substantially an odd number multiple of a ¼ wavelength of sound waves or less than or equal to the ¼ wavelength.

摘要翻译： 超声换能器包括壳体，反射部分和压电体。 壳体具有基本上圆柱形的形状，包括限定顶部的中心轴线方向上的一个封闭端。 压电体设置在壳体顶部的内表面上。 反射部分被布置成与压电体相对并间隔开。 压电体和反射部之间的距离大于压电体的最大位移，并且基本上是声波的1/4波长或小于或等于1/4波长的奇数倍。

公开(公告)号：US20100292590A1

公开(公告)日：2010-11-18

申请号：US12784103

申请日：2010-05-20

申请人： Mami MATSUKAWA ,  Yoshiaki WATANABE ,  Masashi SAITO ,  Takaaki ASADA ,  Mio FURUYA

发明人： Mami MATSUKAWA ,  Yoshiaki WATANABE ,  Masashi SAITO ,  Takaaki ASADA ,  Mio FURUYA

IPC分类号： A61B5/02

CPC分类号： A61B7/04 ,  A61B5/02007 ,  A61B5/0285

摘要： An arteriosclerosis diagnostic device according to various embodiments is a simple device, resistant to an external factor, such as an error resulting from a skin surface, and capable of measuring the degree of hardness of an artery. The arteriosclerosis diagnostic device detects a heart sound and a pulse wave at least one location of a living body, the pulse wave propagating through an artery in relation to the heart sound, converts detected signals thereof into respective frequency signals, specifies the peak frequency of each of the frequency signals, and determines the degree of arteriosclerosis on the basis of the difference between the peak frequency of the heart sound and the peak frequency of the pulse wave. Accordingly, the degree of arteriosclerosis can be determined by comparison between the frequency signals.

摘要翻译： 根据各种实施方式的动脉硬化症诊断装置是能够抵抗外部因素的简单装置，例如由皮肤表面产生的误差，并且能够测量动脉的硬度。 动脉硬化诊断装置通过与心脏声音相关的动脉传播的脉搏波将检测到的信号转换成各自的频率信号，来确定生物体的至少一个位置的心脏声音和脉搏波，将各个频率信号的峰值频率 的频率信号，并且基于心音的峰值频率与脉搏波的峰值频率之间的差来确定动脉硬化的程度。 因此，可以通过频率信号之间的比较来确定动脉硬化的程度。

公开(公告)号：US20090218913A1

公开(公告)日：2009-09-03

申请号：US12467361

申请日：2009-05-18

申请人： Hiroyuki HIRANO ,  Takaaki ASADA ,  Mio FURUYA ,  Junichi NISHIE

发明人： Hiroyuki HIRANO ,  Takaaki ASADA ,  Mio FURUYA ,  Junichi NISHIE

IPC分类号： B06B1/06 ,  H02N2/00

CPC分类号： G10K9/22 ,  H04R17/00

摘要： A piezoelectric device is attached to an inner bottom surface of the outer case having a tubular shape including a bottom, and an inner case is disposed within the outer case. In an ultrasonic vibration acting surface of the inner case that is arranged to face the bottom surface of the outer case, a mass of the inner case is arranged to restrain vibration of the outer case, which is generated by the piezoelectric device. A first cutout is provided in a portion of the ultrasonic vibration acting surface and arranged to face the piezoelectric device so as to flatten an ultrasonic beam generated by vibrations of the piezoelectric device and the outer case. Second cutouts are provided at locations on the ultrasonic vibration acting surface spaced away from the first cutout in a line symmetrical relationship with a long axis of the first cutout defining a symmetrical axis.

摘要翻译： 压电装置附接到具有包括底部的管状形状的外壳的内底表面，并且内壳设置在外壳内。 在内壳的配置成面向外壳的底面的超声波振动作用面中，内壳的质量被配置为抑制由压电元件产生的外壳的振动。 第一切口设置在超声波振动作用面的一部分上，并配置为面对压电装置，以使由压电装置和外壳振动产生的超声波束变平。 第二切口设置在与限定对称轴线的第一切口的长轴线对称关系的与第一切口间隔开的超声波振动作用面上的位置处。

公开(公告)号：US20110208073A1

公开(公告)日：2011-08-25

申请号：US13037028

申请日：2011-02-28

申请人： Mami MATSUKAWA ,  Yoshiaki WATANABE ,  Masashi SAITO ,  Takaaki ASADA ,  Mio FURUYA

发明人： Mami MATSUKAWA ,  Yoshiaki WATANABE ,  Masashi SAITO ,  Takaaki ASADA ,  Mio FURUYA

IPC分类号： A61B5/02

CPC分类号： A61B5/0285 ,  A61B5/02007 ,  A61B5/6822 ,  A61B8/06

摘要： The disclosed is an arteriosclerosis evaluating apparatus capable of easily separating pulse wave data detected at one measurement site into an incident wave and a reflected wave and capable of easily determining and evaluating the degree of arteriosclerosis. The pulse wave transmitted through an artery is detected at one site of a living body by a pulse wave detection device, and the detected pulse wave is fitted with a fitting function by a breakdown device so that the detected pulse wave can be broken down into an incident wave and a reflected wave. The degree of arteriosclerosis is evaluated from the amplitude intensities (i.e., peak intensities) of the incident wave and the reflected wave broken down from the pulse wave.

摘要翻译： 所公开的是一种动脉硬化评估装置，其能够容易地将在一个测量部位检测到的脉波数据分离成入射波和反射波，并且能够容易地确定和评估动脉硬化程度。 通过脉搏检测装置在生物体的一个位置处检测到通过动脉传递的脉波，并且通过击穿装置将检测出的脉搏波装配到拟合功能，使得检测出的脉波可以分解为 入射波和反射波。 从入射波的振幅强度（即峰值强度）和从脉搏波分解的反射波来评价动脉硬化的程度。

公开(公告)号：US20110077537A1

公开(公告)日：2011-03-31

申请号：US12891265

申请日：2010-09-27

申请人： Kazuhiro EBARA ,  Takaaki ASADA ,  Mio FURUYA

发明人： Kazuhiro EBARA ,  Takaaki ASADA ,  Mio FURUYA

IPC分类号： A61B5/0245

CPC分类号： A61B5/0245 ,  A61B5/681 ,  A61B2562/0247 ,  A61B2562/028 ,  A61B2562/046

摘要： A pulse wave measurement device includes a vibrating membrane configured to transfer displacement of a skin surface caused by a pulse wave, a frame portion configured to fix the outer region of the vibrating membrane, a partitioning portion configured to partition a central region of the vibrating membrane into a plurality of sections, and a plurality of sensor elements respectively provided in the plurality of sections and arranged on the vibrating membrane within each of the plurality of sections. The sensor element in each section is configured to convert vibration of the vibrating membrane in that section into an electric signal. The partitioning portion is coupled to the vibrating membrane. The vibrating membrane is coupled to the frame portion. Thus, the sections of the vibrating membrane partitioned by the partitioning portion vibrate individually, and each section of the vibrating membrane does not substantially interfere with the other sections.

摘要翻译： 一种脉波测量装置，包括：振动膜，其被配置为传递由脉搏波引起的皮肤表面的位移，构成为固定所述振动膜的外部区域的框架部;隔离部，其配置成将所述振动膜的中心区域分隔开; 多个部分中的多个传感器元件和分别设置在多个部分中的多个传感器元件，并且布置在多个部分中的每个部分内的振动膜上。 每个部分中的传感器元件被配置为将该部分中的振动膜的振动转换为电信号。 分隔部分耦合到振动膜。 振动膜与框架部分相连。 因此，由分隔部分隔开的振动膜的部分分别振动，振动膜的各部分基本上不干扰其他部分。

公开(公告)号：US20070108871A1

公开(公告)日：2007-05-17

申请号：US10595518

申请日：2005-03-29

申请人： Takaaki ASADA ,  Seiichi MORITA

发明人： Takaaki ASADA ,  Seiichi MORITA

IPC分类号： H01L41/00

CPC分类号： G01N29/345 ,  G01N29/07 ,  G01N29/245 ,  G01N29/32 ,  G01N29/343 ,  G01N2291/02836 ,  G01N2291/02881 ,  G01N2291/0423

摘要： An ultrasonic transducer includes a piezoelectric resonator including a pair of electrodes sandwiching a piezoelectric body and provided with the backing layer in contact with one of the electrodes of the piezoelectric resonator and having the same acoustic characteristic impedance as the piezoelectric body. A method includes the step of driving the ultrasonic transducer so as to satisfy a condition: 2Th≦Td≦6Th where Th is a propagation time of an ultrasonic wave in the piezoelectric body sandwiched by the pair of electrodes, and Td is a pulse width of a drive pulse driving the piezoelectric resonator.

摘要翻译： 超声换能器包括压电谐振器，该压电谐振器包括夹着压电体的一对电极，并且设置有与压电谐振器的一个电极接触的背衬层，并具有与压电体相同的声学特性阻抗。 一种方法包括驱动超声波换能器以满足条件：2Th <= Td <= 6Th的步骤，其中Th是由一对电极夹在压电体中的超声波的传播时间，Td是脉冲 驱动压电谐振器的驱动脉冲的宽度。