公开(公告)号：US5694936A

公开(公告)日：1997-12-09

申请号：US528263

申请日：1995-09-14

申请人： Katsuhiko Fujimoto ,  Yoshiharu Ishibashi ,  Mariko Shibata ,  Takuji Suzuki ,  Satoshi Aida ,  Shiroh Saitoh ,  Kazuya Okamoto

发明人： Katsuhiko Fujimoto ,  Yoshiharu Ishibashi ,  Mariko Shibata ,  Takuji Suzuki ,  Satoshi Aida ,  Shiroh Saitoh ,  Kazuya Okamoto

IPC分类号： A61B17/00 ,  A61B17/22 ,  A61N7/00 ,  A61N7/02

CPC分类号： A61N7/02 ,  A61B2017/00176 ,  A61B2017/22009 ,  A61N2007/0065 ,  A61N2007/0073

摘要： An ultrasonic diagnosis apparatus for raising tissue temperature for hypothermic treatments, including an ultrasonic source for generating an ultrasonic treatment wave and a driving means for driving the ultrasonic source such that a frequency of the ultrasonic treatment wave generated by the ultrasonic source changes with time. The frequency of the ultrasonic treatment wave is changed along the time axis. By this change in frequency, some bubbles formed by cavitation as a result of the ultrasonic treatment wave are divided, and some bubbles are collapsed and therefore eliminated. Side effect cavitation and spread of a thermal degeneration area is suppressed, and thermal degeneration can be accurately induced in a desired area, thereby realizing a reliable, safe ultrasonic thermotherapy. Since cavitation is positively suppressed, the total treatment period can be shortened because cavitation would otherwise interfere with and slow down the thermal degeneration process. Therefore, treatment throughput can be improved as compared with a case in which cavitation is left to naturally break and disappear.

摘要翻译： 一种用于提高低温治疗的组织温度的超声波诊断装置，包括用于产生超声波处理波的超声波源和用于驱动超声波源的驱动装置，使得由超声波源产生的超声波处理波的频率随时间而变化。 超声波处理波的频率沿时间轴变化。 通过这种频率变化，由于超声波处理波而产生的由空穴形成的一些气泡被分割，并且一些气泡被折叠并因此被消除。 抑制热变性区域的副作用空化和扩散，可以在期望的区域中精确地诱导热变性，从而实现可靠，安全的超声波热疗。 由于气穴被积极地抑制，所以总处理时间可以缩短，因为空化会妨碍和减慢热变性过程。 因此，与空穴自然断裂和消失的情况相比，能够提高处理量。

公开(公告)号：US5553618A

公开(公告)日：1996-09-10

申请号：US209528

申请日：1994-03-14

申请人： Takuji Suzuki ,  Satoshi Aida ,  Katsuhiko Fujimoto ,  Mariko Shibata ,  Yoshiharu Ishibashi ,  Mamoru Izumi ,  Shiroh Saitoh ,  Kazuya Okamoto

发明人： Takuji Suzuki ,  Satoshi Aida ,  Katsuhiko Fujimoto ,  Mariko Shibata ,  Yoshiharu Ishibashi ,  Mamoru Izumi ,  Shiroh Saitoh ,  Kazuya Okamoto

IPC分类号： A61B5/055 ,  A61B8/00 ,  A61B17/00 ,  A61B19/00 ,  A61N7/02 ,  G01R33/28 ,  G01R33/48 ,  A61B6/00

CPC分类号： G01R33/28 ,  A61N7/02 ,  G01R33/4804 ,  A61B2017/00694 ,  A61B2017/00707 ,  A61B2017/00716 ,  A61B2090/374 ,  A61B2090/504 ,  A61B5/055 ,  A61B6/506 ,  A61B8/00

摘要： An ultrasound medical treatment system capable of determining the hot spot at high spatial resolution, and preventing the displacement of the hot spot from the focal point. In the system, the imaging device for obtaining image data of a treatment portion containing a treatment target and an irradiation device for applying radiation onto the treatment target are controlled in such a manner that the imaging device is controlled to obtain hot spot detection image data after the irradiation device is controlled to apply radiation at a prescribed level, so that a hot spot indicating a change due to a temperature change caused by the radiation at the prescribed level can be detected from the hot spot detection image data. The irradiation device is then controlled to apply a treatment radiation at a treatment level higher than the prescribed level according to the detected hot spot.

摘要翻译： 一种能够以高空间分辨率确定热点并防止热点从焦点位移的超声医疗系统。 在该系统中，控制用于获得含有处理对象的处理部分的图像数据的成像装置和用于向处理对象施加辐射的照射装置，使得成像装置被控制以获得热点检测图像数据 照射装置被控制为以规定的水平施加辐射，从而可以从热点检测图像数据检测到指示由于由规定水平的辐射导致的温度变化的变化的热点。 然后根据检测到的热点，照射装置被控制为以高于规定水平的处理水平施加治疗放射线。

公开(公告)号：US5722411A

公开(公告)日：1998-03-03

申请号：US681451

申请日：1996-07-23

申请人： Takuji Suzuki ,  Satoshi Aida ,  Katsuhiko Fujimoto ,  Mariko Shibata ,  Yoshiharu Ishibashi ,  Mamoru Izumi ,  Shiroh Saitoh ,  Kazuya Okamoto

发明人： Takuji Suzuki ,  Satoshi Aida ,  Katsuhiko Fujimoto ,  Mariko Shibata ,  Yoshiharu Ishibashi ,  Mamoru Izumi ,  Shiroh Saitoh ,  Kazuya Okamoto

IPC分类号： A61B5/055 ,  A61B8/00 ,  A61B17/00 ,  A61B19/00 ,  A61N7/02 ,  G01R33/28 ,  G01R33/48

CPC分类号： G01R33/28 ,  A61N7/02 ,  G01R33/4804 ,  A61B2017/00694 ,  A61B2017/00707 ,  A61B2017/00716 ,  A61B2090/374 ,  A61B2090/504 ,  A61B5/055 ,  A61B6/506 ,  A61B8/00

摘要： An ultrasound medical treatment apparatus includes an ultrasound applicator for applying ultrasound irradiation to a treatment target. The treatment apparatus also includes an ultrasound imaging device that transmits ultrasound pulses to image the treatment target. The treatment apparatus is capable of reducing noises occurring at an ultrasound imaging device due to the ultrasound irradiation generated by the ultrasound application during ultrasound medical treatment. The noises may be reduced by increasing a transmission power of the ultrasound pulses. Alternatively, the noises may be reduced by subtracting pre-recorded noise components from the ultrasound pulses received by the ultrasound imaging device, where the pre-recorded noise components are characteristic of noise occurring at the ultrasound imaging device due to the ultrasound irradiation generated by the ultrasound applicator.

摘要翻译： 超声波医疗装置包括用于对治疗对象进行超声波照射的超声波施加器。 治疗装置还包括超声波成像装置，其发射超声脉冲以对治疗目标进行成像。 该处理装置能够在超声波医疗中由于超声波应用产生的超声波照射而能够减少超声波摄像装置产生的噪声。 可以通过增加超声脉冲的发射功率来减小噪声。 或者，可以通过从由超声成像装置接收的超声波脉冲中减去预先记录的噪声分量来减少噪声，其中预先记录的噪声分量是由于由超声成像装置产生的超声波照射而在超声成像装置处发生的噪声的特征 超声波施加器。

公开(公告)号：US5307816A

公开(公告)日：1994-05-03

申请号：US932952

申请日：1992-08-21

申请人： Shinichi Hashimoto ,  Shiroh Saitoh ,  Katsuhiko Fujimoto ,  Satoshi Aida

发明人： Shinichi Hashimoto ,  Shiroh Saitoh ,  Katsuhiko Fujimoto ,  Satoshi Aida

IPC分类号： A61B8/08 ,  A61B8/12 ,  A61B17/00 ,  A61B17/22 ,  A61N7/00 ,  A61B8/00

CPC分类号： A61N7/00 ,  A61B17/2256 ,  A61B17/2258 ,  A61B8/0833 ,  A61B8/12 ,  A61B2017/00106 ,  A61B2017/22084 ,  A61B8/445

摘要： A thrombus resolving treatment apparatus of this invention has an ultrasonic radiator for radiating a therapeutic ultrasonic wave to a thrombus portion, an ultrasonic probe for obtaining B mode image data of an interior of a patient's body, a first ultrasonic imaging unit for visually displaying the B mode image data supplied from the ultrasonic probe, a catheter inserted in the blood vessel, an ultrasonic transducer, provided to the catheter, for obtaining cross-sectional image data of an interior of a blood vessel, and a second ultrasonic imaging unit for visually displaying the cross-sectional image data supplied from the ultrasonic transducer.

摘要翻译： 本发明的血栓分解治疗装置具有用于向血栓部分照射治疗超声波的超声波散热器，用于获得患者身体内部的B模式图像数据的超声波探头，用于视觉显示B 从超声波探头提供的模式图像数据，插入血管中的导管，设置在导管上的超声换能器，用于获得血管内部的横截面图像数据;以及第二超声波成像单元，用于可视地显示 从超声波换能器提供的横截面图像数据。

公开(公告)号：US5912679A

公开(公告)日：1999-06-15

申请号：US603599

申请日：1996-02-21

申请人： Satoshi Takayama ,  Noriko Kudo ,  Shiroh Saitoh ,  Mamoru Izumi ,  Chiaki Tanuma

发明人： Satoshi Takayama ,  Noriko Kudo ,  Shiroh Saitoh ,  Mamoru Izumi ,  Chiaki Tanuma

IPC分类号： B41J2/14 ,  B41J29/38 ,  B41J2/045 ,  B41J2/135 ,  B41J2/205

CPC分类号： B41J2/14008 ,  B41J2002/14322

摘要： A driving circuit controls a time for applying a drive signal to a piezoelectric element so as to bring a control in the number of ink droplets squirted from a liquid surface of liquid ink according to a gray scale level of an image to be printed on a printed object. According to application of the drive signal, acoustic waves emitted from a piezoelectric element array are focused in a main scanning direction, made incident to an acoustic lens via an acoustic matching layer, further focused in a direction orthogonal to the main scanning direction and focused in a vicinity of the liquid surface in a point form. In the vicinity of the liquid surface, an ink liquid mound is formed by means of pressure (discharging pressure) generated by the focused acoustic waves and then from a tip of the ink liquid mound an ink droplet according to the application time is squirted. The squirted ink droplet is ejected and stuck to the printed object. By performing main and subscanning to the printed object, a two-dimensional image is printed thereon.

摘要翻译： 驱动电路控制将驱动信号施加到压电元件的时间，以便根据待印刷的图像的灰度级别对液体墨水的液面喷射的墨滴数量进行控制 目的。 根据驱动信号的应用，从压电元件阵列发出的声波在主扫描方向上聚焦，通过声匹配层入射到声透镜，进一步在与主扫描方向正交的方向上聚焦并聚焦在 以点形式的液面附近。 在液体表面附近，通过聚焦声波产生的压力（排出压力）形成油墨液体堆，然后从油墨液体的顶部喷射根据施加时间的墨滴。 喷射的墨滴被喷射并粘贴到印刷对象上。 通过对打印对象执行主和副扫描，在其上打印二维图像。

公开(公告)号：US5410209A

公开(公告)日：1995-04-25

申请号：US187055

申请日：1994-01-27

申请人： Yohachi Yamashita ,  Shiroh Saitoh

发明人： Yohachi Yamashita ,  Shiroh Saitoh

IPC分类号： H01L41/18 ,  H01L41/187 ,  H01L41/08 ,  C04B35/49

CPC分类号： C04B35/493 ,  C01G23/006 ,  C01G25/006 ,  C01G33/006 ,  C01G53/006 ,  C04B35/499 ,  C04B35/645 ,  H01L41/187 ,  H01L41/1875 ,  H01L41/1876 ,  C01P2002/50 ,  C01P2002/78 ,  C01P2006/40 ,  C04B2235/3201 ,  C04B2235/3206 ,  C04B2235/3208 ,  C04B2235/3213 ,  C04B2235/3215 ,  C04B2235/3224 ,  C04B2235/3227 ,  C04B2235/3239 ,  C04B2235/3241 ,  C04B2235/3248 ,  C04B2235/3251 ,  C04B2235/3255 ,  C04B2235/3256 ,  C04B2235/3258 ,  C04B2235/3262 ,  C04B2235/3272 ,  C04B2235/3275 ,  C04B2235/3279 ,  C04B2235/3284 ,  C04B2235/3294 ,  C04B2235/3298 ,  C04B2235/656 ,  C04B2235/72

摘要： A piezoelectric material with a high fracture toughness and a large electromechanical coupling coefficient is disclosed. This piezoelectric material contains a composition which is represented by xPb(Sc.sub.1/2 Nb.sub.1/2)O.sub.3 -yPbTiO.sub.3 -zPbZrO.sub.3 -wPb(Me.sub.1/3 Nb.sub.2/3)O.sub.3, where Me is at least one metal selected from the group consisting of Mg, Zn and Ni, and x+y+z+w=1.00, x, y, z, and w being values falling within region which is defined by connecting points a, b, c, and d and which excludes a line ab, the points a, b, c, and d existing on the faces of a regular trigonal pyramid having apices P.sub.1, P.sub.2, P.sub.3, and P.sub.4 which correspond to Pb(Sc.sub.1/2 Nb.sub.1/2)O.sub.3, PbTiO.sub.3, PbZrO.sub.3 and Pb(Me.sub.1/3 Nb.sub.2/3)O.sub.3, respectively, and the points a, b, c, and d having the following coordinate values when the apices P.sub.1, P.sub.2, P.sub.3, and P.sub.4 have coordinate values of (X.sub.1, Y.sub.1, Z.sub.1, W.sub.1 =1, 0, 0, 0), (X.sub.2, Y.sub.2, Z.sub.2, W.sub.2 =0, 1, 0, 0, 0), (X.sub.3, Y.sub.3, Z.sub.3, W.sub.3 =0, 0, 1, 0), and (X.sub.4, Y.sub.4, Z.sub.4, W.sub.4 =0, 0, 0, 1):______________________________________ X Y Z W ______________________________________ a 0.72 0.28 0.00 0.00 b 0.02 0.98 0.00 0.00 c 0.02 0.28 0.70 0.00 d 0.02 0.20 0.00 0.78 ______________________________________

摘要翻译： 公开了具有高断裂韧性和大机电耦合系数的压电材料。 该压电材料含有由xPb（Sc1 / 2Nb1 / 2）O3-yPbTiO3-zPbZrO3-wPb（Me1 / 3Nb2 / 3）O3表示的组成，其中Me是选自Mg，Zn 并且x + y + z + w =​​ 1.00，x，y，z和w是落在由连接点a，b，c和d定义并且不包括线ab的区域内的值， 存在于具有对应于Pb（Sc1 / 2Nb1 / 2）O3，PbTiO3，PbZrO3和Pb（Me1 / 3Nb2 / Pb）的顶点P1，P2，P3和P4的正三角锥的表面上的a，b，c和d， 3）O3，并且当顶点P1，P2，P3和P4具有坐标值（X1，Y1，Z1，W1 = 1,0，...）时具有以下坐标值的点a，b，c和d， 0，0），（X2，Y2，Z2，W2 = 0,1,0,0,0），（X3，Y3，Z3，W3 = 0,0,1,0）和（X4，Y4，Z4 ，W4 = 0,0,0,1）：-XYZW -a 0.72 0.28 0.00 0.00 -b 0.02 0.98 0.00 0.00 -c 0.02 0.28 0.70 0.00 -d 0.02 0.20 0.00 0.78 -

公开(公告)号：US06238481B1

公开(公告)日：2001-05-29

申请号：US09321549

申请日：1999-05-28

申请人： Yohachi Yamashita ,  Tsuyoshi Kobayashi ,  Shiroh Saitoh ,  Kouichi Harada ,  Senji Shimanuki

发明人： Yohachi Yamashita ,  Tsuyoshi Kobayashi ,  Shiroh Saitoh ,  Kouichi Harada ,  Senji Shimanuki

IPC分类号： C30B2502

CPC分类号： B06B1/0622

摘要： A method of manufacturing an ultrasonic probe includes the steps of forming electrodes on two surfaces of a piezoelectric single crystal made of a complex perovskite compound and then adhering the piezoelectric single crystal on a backing material, dicing the piezoelectric single crystal to form an arrayed piezoelectric single-crystal transducer, and poling the arrayed piezoelectric single-crystal transducer in the electric field of 0.5 to 2 kV/mm at a temperature of 80° C. or less.

摘要翻译： 一种制造超声波探头的方法包括以下步骤：在由复合钙钛矿化合物制成的压电单晶的两个表面上形成电极，然后将压电单晶粘附在背衬材料上，切割压电单晶以形成阵列压电单体 并且在80℃或更低的温度下以0.5至2kV / mm的电场极化排列的压电单晶换能器。

公开(公告)号：US6153967A

公开(公告)日：2000-11-28

申请号：US161415

申请日：1998-09-24

申请人： Tsuyoshi Kobayashi ,  Shiroh Saitoh ,  Yohachi Yamashita ,  Senji Shimanuki ,  Kouichi Harada

发明人： Tsuyoshi Kobayashi ,  Shiroh Saitoh ,  Yohachi Yamashita ,  Senji Shimanuki ,  Kouichi Harada

IPC分类号： G01N29/24 ,  A61B8/06 ,  B06B1/06 ,  H01L41/047 ,  H01L41/08 ,  H04R17/00

CPC分类号： B06B1/0622 ,  H01L41/047 ,  H01L41/0475 ,  H01L41/0477

摘要： An ultrasonic probe has strip-formed oscillators formed of a piezoelectric crystal material arranged in an array form. Metal layers are formed by a first layer of at least one of Ti, Ni and Cr, a second layer of at least one of Cu and Ni, and a third layer of at least one of Cu, Au, Pt, Ag and Pd. A backing material is fixed to the oscillators through the metal layers. With this structure, it is possible to manufacture an ultrasonic probe having a high sensitivity while maintaining a favorable dicing process, even while using a backing material having a low acoustic impedance and soft properties.

摘要翻译： 超声波探头具有由排列成阵列形式的压电晶体材料形成的带状振荡器。 金属层由Ti，Ni和Cr中的至少一种的第一层，Cu和Ni中的至少一种的第二层和Cu，Au，Pt，Ag和Pd中的至少一种的第三层形成。 背衬材料通过金属层固定到振荡器。 利用这种结构，即使使用具有低声阻抗和软性质的背衬材料，也可以制造具有高灵敏度的超声波探头，同时保持有利的切割工艺。

公开(公告)号：US6036301A

公开(公告)日：2000-03-14

申请号：US41663

申请日：1998-03-13

申请人： Isao Amemiya ,  Chiaki Tanuma ,  Shiroh Saitoh ,  Hitoshi Yagi ,  Noriko Yamamoto

发明人： Isao Amemiya ,  Chiaki Tanuma ,  Shiroh Saitoh ,  Hitoshi Yagi ,  Noriko Yamamoto

IPC分类号： B41J2/175 ,  B41J2/015 ,  B41J2/14 ,  G01D15/16

CPC分类号： B41J2/14008 ,  B41J2/14 ,  B41J2002/14322

摘要： An ink jet recording apparatus includes an ink holding chamber, an ultrasonic wave generator having a piezoelectric transducer structure consisting of a piezoelectric member, and first and second electrodes formed on opposing surfaces of the piezoelectric member, and a driver for driving the piezoelectric transducer structure. The piezoelectric transducer structure is coupled acoustically with the ink liquid. The apparatus further includes ultrasonic wave focusing member formed on the ultrasonic wave generator and including an acoustic lens for focusing an ultrasonic wave generated from the ultrasonic wave generator in a vicinity close to a surface of the ink liquid, and a supporting member for supporting the ultrasonic wave generator on an opposite side to the ultrasonic wave focusing member. The supporting member supports the ultrasonic wave generator via an ultrasonic wave canceling medium, in a region corresponding to an overlapping region between the piezoelectric transducer structure and the acoustic lens.

摘要翻译： 一种喷墨记录装置，包括：油墨保持室;具有由压电元件构成的压电换能器结构的超声波发生器;以及形成在压电元件的相对表面上的第一和第二电极;以及用于驱动压电换能器结构的驱动器。 压电换能器结构与油墨液体声学耦合。 该设备还包括形成在超声波发生器上的超声波聚焦元件，并且包括用于将从超声波发生器产生的超声波聚焦在靠近墨液表面的附近的声透镜，以及用于支撑超声波 波发生器与超声波聚焦部件相反的一侧。 支撑构件在与压电换能器结构和声透镜之间的重叠区域对应的区域中经由超声波消除介质支撑超声波发生器。

公开(公告)号：US5402791A

公开(公告)日：1995-04-04

申请号：US285445

申请日：1994-08-05

申请人： Shiroh Saitoh ,  Mamoru Izumi ,  Yohachi Yamashita ,  Senji Shimanuki ,  Masaru Kawachi ,  Tsuyoshi Kobayashi

发明人： Shiroh Saitoh ,  Mamoru Izumi ,  Yohachi Yamashita ,  Senji Shimanuki ,  Masaru Kawachi ,  Tsuyoshi Kobayashi

IPC分类号： B06B1/06 ,  C30B9/00 ,  H01L41/18 ,  H04R17/08 ,  A61B8/00

CPC分类号： C30B29/22 ,  B06B1/0648 ,  C30B9/00 ,  H01L41/18 ,  H04R17/08

摘要： Disclosed is a piezoelectric single crystal which has a large electromechanical coupling coefficient and hardly brings about depolarization due to the effect of heat in, e.g., the steps of manufacturing an ultrasonic transmitting/receiving element. The piezoelectric single crystal consists essentially of a general formula:Pb{[M1.sub.1/3 Nb.sub.(2/3)-(2z/3) Ta.sub.2z/3 ].sub.1-x-y Ti.sub.x M2.sub.y }O.sup. 3wherein M1 represents at least one metal selected from the group consisting of Zn, Ni, and Mg, M2 represents at least one metal selected from the group consisting of Pt, Fe, Bi, Rh, and Ir, and x, y, and z are defined as 0.05.ltoreq.x.ltoreq.0.2, 0.00001.ltoreq.y.ltoreq.0.01, and 0.ltoreq.z.ltoreq.0.1, respectively.

摘要翻译： 公开了一种压电单晶，其具有大的机电耦合系数，并且由于在例如制造超声波发射/接收元件的步骤中的热量的影响，几乎不引起去极化。 压电单晶基本上由通式：Pb {[M11 / 3Nb（2/3） - （2z / 3）Ta2z / 3] 1-x-yTixM2y} O 3组成，其中M1表示选自 由Zn，Ni和Mg组成的组，M2表示选自Pt，Fe，Bi，Rh和Ir中的至少一种金属，x，y和z定义为0.05 < =0.2,0.00001≤y≤0.01，0≤z≤0.1。