公开(公告)号：US5810732A

公开(公告)日：1998-09-22

申请号：US759726

申请日：1996-12-06

申请人： Natsuru Hamatsu ,  Naoki Ohtomo

发明人： Natsuru Hamatsu ,  Naoki Ohtomo

IPC分类号： A61B9/00 ,  A61B6/00 ,  A61B6/04 ,  A61B8/00 ,  A61B8/08

CPC分类号： A61B6/505 ,  A61B6/0421 ,  A61B8/0875

摘要： A bone assessment apparatus for assessing bone by ultrasonic waves. A slider mechanism for supporting a platform is provided such that it is free to be given a parallel displacement. When a foot is placed on the platform and a pair of measuring units are brought close together, the platform starts to slide from when one of the units comes in contact with the foot. When the contact pressures of the two units are identical, the sliding motion stops. The center line of the foot is thereby made to coincide with the center line between transducers, and in this situation, ultrasonic waves are transmitted and received.

摘要翻译： 一种用于通过超声波评估骨骼的骨骼评估装置。 提供了一种用于支撑平台的滑动器机构，使得它能够被平移地移动。 当脚放在平台上并且一对测量单元靠近在一起时，平台从其中一个单元与脚接触时开始滑动。 当两个单元的接触压力相同时，滑动停止。 因此脚的中心线与换能器之间的中心线重合，在这种情况下，发送和接收超声波。

公开(公告)号：US5234427A

公开(公告)日：1993-08-10

申请号：US598231

申请日：1990-10-16

申请人： Naoki Ohtomo ,  Shizuo Ninomiya ,  Takeshi Kobayashi

发明人： Naoki Ohtomo ,  Shizuo Ninomiya ,  Takeshi Kobayashi

IPC分类号： A61B18/12

CPC分类号： A61B18/1206 ,  A61B18/12 ,  A61B2018/0066

摘要： An electrosurgical unit for being capable of selection of desirable electrosurgical operation mode in cutting mode and coagulation mode. A handpiece for the operation is connected to a control means through an isolation means, and an operator performs the operations of cutting mode or coagulation mode by use of the handpiece. The handpiece is provided with a cutting mode switch and a coagulation mode switch. The operator can perform the mode change only in the sterile field by depression of these switches simultaneously.

公开(公告)号：US5167659A

公开(公告)日：1992-12-01

申请号：US699453

申请日：1991-05-13

申请人： Naoki Ohtomo ,  Shizuo Ninomiya

发明人： Naoki Ohtomo ,  Shizuo Ninomiya

IPC分类号： A61B17/32 ,  A61B18/00 ,  A61B18/12 ,  A61B18/14 ,  A61M3/02 ,  A61M11/06

CPC分类号： A61B18/1206 ,  A61B18/12 ,  A61B18/1402 ,  A61M3/0258 ,  A61B17/3203 ,  A61B2018/0066 ,  A61B2018/00958 ,  A61B2018/1253 ,  A61B2018/1472 ,  A61B2218/003 ,  A61M11/06 ,  A61M3/0279

摘要： A blood coagulating apparatus for stopping bleeding by heating the bleeding portion of the living body while producing an electric discharge on the bleeding portion. A patient plate which is capable of maintaining the state of being electrically connected to the living body is placed on the living body. An active electrode including an electrolyte ejector is brought to the vicinity of the bleeding portion. The electrolyte ejector includes an ejector for supplying an electrolyte to an air passage for passing air therethrough at a high speed so as to mix the electrolyte with air and ejecting the atomized electrolyte to the bleeding portion. The electric discharge produced in the vicinity of the bleeding portion by applying a high-frequency voltage between the active electrode and the patient plate is made stable and effective by ejecting the atomized electrolyte toward the bleeding portion. Thus, a uniform coagulation spot is formed and stable hemostatis is enabled.

摘要翻译： 一种用于通过在出血部分产生放电的同时加热活体的渗出部分来停止渗血的凝血装置。 能够维持与活体电气连接的状态的病人板被放置在生物体上。 包括电解质喷射器的活性电极被带到出血部分附近。 电解质喷射器包括用于向空气通道供应电解质以将空气高速通过的喷射器，以将电解质与空气混合并将雾化的电解质喷射到渗出部分。 通过在有效电极和患者板之间施加高频电压，在出血部附近产生的放电通过将雾化的电解液喷射到出血部分而变得稳定和有效。 因此，形成均匀的凝固点，并且能够稳定地固定。

公开(公告)号：US6095979A

公开(公告)日：2000-08-01

申请号：US156261

申请日：1998-09-18

申请人： Naoki Ohtomo

发明人： Naoki Ohtomo

IPC分类号： A61B8/08 ,  A01B8/00

CPC分类号： A61B8/0875

摘要： A bone assessment apparatus for diagnosing bone by transmitting and receiving measuring waves (in particular ultrasonic waves) is provided. A body part (e.g. a foot) is gripped by a pair of transducer assemblies, and ultrasonic waves are transmitted and received in this state. Each transducer assembly comprises an ultrasonic transducer and a coupler. The transverse cross-sectional area of the ultrasonic wave beam is adjusted by adjusting the contact area of the coupler on the body part, by changing the vibrating area of the ultrasonic transducer, or by fitting an attachment which narrows the ultrasonic wave beam to the transducer assembly. The transverse cross-sectional area of the ultrasonic wave beam may be changed depending on the size of the body part to be measured.

摘要翻译： 提供了一种用于通过发送和接收测量波（特别是超声波）来诊断骨骼的骨骼评估装置。 主体部分（例如脚）被一对换能器组件夹持，并且在该状态下发送和接收超声波。 每个换能器组件包括超声波换能器和耦合器。 超声波波束的横截面积通过调节身体部分上的耦合器的接触面积，通过改变超声波换能器的振动面积，或者通过装配使超声波束变窄到传感器的附件来调节 部件。 超声波波束的横截面积可以根据要测量的身体部位的尺寸而改变。

公开(公告)号：US5938610A

公开(公告)日：1999-08-17

申请号：US156970

申请日：1998-09-18

申请人： Naoki Ohtomo

发明人： Naoki Ohtomo

IPC分类号： A61B8/08 ,  A61B8/00

CPC分类号： A61B8/0875

摘要： A bone assessment apparatus for diagnosing bone by transmitting and receiving measuring waves (in particular ultrasonic waves) is provided. A body part (e.g. a foot) is gripped by a pair of transducer assemblies, and ultrasonic waves are transmitted and received in this state. Each transducer assembly comprises an ultrasonic transducer and a coupler. The transverse cross-sectional area of the ultrasonic wave beam is adjusted by adjusting the contact area of the coupler on the body part, by changing the vibrating area of the ultrasonic transducer, or by fitting an attachment which narrows the ultrasonic wave beam to the transducer assembly. The transverse cross-sectional area of the ultrasonic wave beam may be changed depending on the size of the body part to be measured.

公开(公告)号：US5433203A

公开(公告)日：1995-07-18

申请号：US278092

申请日：1994-07-21

申请人： Shigeo Kimura ,  Naoki Ohtomo

发明人： Shigeo Kimura ,  Naoki Ohtomo

IPC分类号： A61B8/00 ,  A61B8/08 ,  A61B10/00 ,  G01N29/11 ,  G01N29/34 ,  G01N29/04

CPC分类号： G01N29/348 ,  A61B8/0875 ,  G01N29/11 ,  G01N2291/02483 ,  G01N2291/102

摘要： A bone assessment apparatus provides a precise bone assessment based on the attenuation factor of an ultrasonic wave which has passed through a bone of a patient. A transmitting transducer and a receiving transducer are positioned at either side of the bone respectively, and an ultrasonic wave is irradiated to the bone, and passes therethrough. A transmitter/receiver provides an attenuation spectrum of the ultrasonic wave and determines a reference frequency f.sub.p peculiar to the patient at which the attenuation factor is minimum. A gradient .DELTA. of the attenuation spectrum is calculated based on the difference between the attenuation factor .alpha..sub.p at the reference frequency f.sub.p and the attenuation factor .alpha..sub.q at a frequency f.sub.q which is spaced apart by a predetermined value from the reference frequency f.sub.p. A density index .rho..sub.I is also calculated which is a gradient of the attenuation spectrum per unit thickness of the bone.

摘要翻译： 骨骼评估装置基于穿过患者的骨骼的超声波的衰减因子提供精确的骨骼评估。 发射换能器和接收换能器分别位于骨的两侧，并且超声波被照射到骨骼上并通过。 发射机/接收机提供超声波的衰减谱，并确定衰减因子最小的患者所特有的参考频率fp。 基于参考频率fp处的衰减因子αp与频率fq的衰减因子αq之间的差计算衰减频谱的梯度DELTA，该频率fq与参考频率fp间隔预定值。 还计算密度指数rho I，其是骨骼每单位厚度的衰减谱的梯度。

公开(公告)号：US5817018A

公开(公告)日：1998-10-06

申请号：US786967

申请日：1997-01-27

申请人： Naoki Ohtomo

发明人： Naoki Ohtomo

IPC分类号： G01N29/00 ,  A61B8/00 ,  A61B8/08 ,  G01H5/00 ,  G01N29/07 ,  G01N29/22 ,  G01N29/24 ,  G01N29/28 ,  G01N29/32 ,  G10K11/02

CPC分类号： G01H5/00 ,  A61B8/0875 ,  G01N29/07 ,  G01N29/223 ,  G01N29/2462 ,  G01N29/28 ,  G01N29/323 ,  G10K11/02 ,  G01N2291/011 ,  G01N2291/02475 ,  G01N2291/02483 ,  G01N2291/02854 ,  G01N2291/02881 ,  G01N2291/048 ,  G01N2291/102

摘要： A method for measuring the speed of sound in a tissue such as bone. First, the transducer covers of a pair of transducer units are pressed together under a predetermined pressure, ultrasound is transmitted and received, and the time taken by the ultrasound to travel from one to the other of the transducers is measured. Next, the tissue is held between the pair of transducer units under the same predetermined pressure, ultrasound is transmitted and received, the time taken for the ultrasound to travel from one to the other of the transducers is measured, and the distance between the two transducers is measured. The speed of sound in the tissue is then computed based on the propagation time of ultrasound when the transducer units are directly pressed together, the propagation time of ultrasound and the distance between the transducers when the tissue is held between the pair of transducer units. By this method, an accurate value for the speed of sound in the tissue unaffected by changes in the properties of the acoustic matching material filling the transducer covers, can be computed.

摘要翻译： 用于测量诸如骨骼的组织中的声音速度的方法。 首先，测量一对传感器单元的传感器盖在预定压力下被压在一起，测量超声波，并且测量超声波从一个传感器传播到另一个传感器所花费的时间。 接下来，在相同的预定压力下将组织保持在一对换能器单元之间，测量超声波，并测量超声波从一个传感器到另一个传感器的时间，并且两个换能器之间的距离 被测量。 然后，当将传感器单元直接压在一起时，超声的传播时间，超声的传播时间和当组织被保持在一对换能器单元之间时，换能器之间的距离，基于超声的传播时间，计算组织中的声音速度。 通过这种方法，可以计算不受填充换能器盖的声匹配材料的性质变化影响的组织中的声速的精确值。

公开(公告)号：US5713361A

公开(公告)日：1998-02-03

申请号：US630221

申请日：1996-04-10

申请人： Naoki Ohtomo

发明人： Naoki Ohtomo

IPC分类号： A61B8/00 ,  A61B8/08

CPC分类号： A61B8/0875

摘要： A bone assessment apparatus includes a pair of ultrasonic transducers (14). A plurality of adapters (26, 126) are available so as to easily adjust the position of the calcaneus in accordance with the size of the foot to be examined. A selected adapter (26, 126) is set on a measuring unit (10). The foot is placed on the selected adapter, and the calcaneus is positioned so as to receive ultrasonic sound beams at its center. The measuring unit (10) includes an adapter identifying section (32), and a control operation unit (30) includes a section (44) for checking whether or not a selected adapter is suitable for the member to be examined.

摘要翻译： 骨骼评估装置包括一对超声换能器（14）。 可以使用多个适配器（26,126），以便根据被检查脚的大小容易地调整跟骨的位置。 所选择的适配器（26,126）被设置在测量单元（10）上。 将脚放置在所选择的适配器上，并且跟骨被定位成在其中心接收超声波束。 测量单元（10）包括适配器识别部分（32），并且控制操作单元（30）包括用于检查所选择的适配器是否适于被检查成员的部分（44）。

公开(公告)号：US5615681A

公开(公告)日：1997-04-01

申请号：US576682

申请日：1995-12-21

申请人： Naoki Ohtomo

发明人： Naoki Ohtomo

IPC分类号： G01N29/00 ,  A61B8/00 ,  A61B8/08 ,  G01H5/00 ,  G01N29/07 ,  G01N29/22 ,  G01N29/24 ,  G01N29/28 ,  G01N29/32 ,  G10K11/02

CPC分类号： G01H5/00 ,  A61B8/0875 ,  G01N29/07 ,  G01N29/223 ,  G01N29/2462 ,  G01N29/28 ,  G01N29/323 ,  G10K11/02 ,  G01N2291/011 ,  G01N2291/02475 ,  G01N2291/02483 ,  G01N2291/02854 ,  G01N2291/02881 ,  G01N2291/048 ,  G01N2291/102

摘要： A method for measuring the speed of sound in a tissue such as bone. First, the transducer covers of a pair of transducer units are pressed together under a predetermined pressure, ultrasound is transmitted and received, and the time taken by the ultrasound to travel from one to the other of the transducers is measured. Next, the tissue is held between the pair of transducer units under the same predetermined pressure, ultrasound is transmitted and received, the time taken for the ultrasound to travel from one to the other of the transducers is measured, and the distance between the two transducers is measured. The speed of sound in the tissue is then computed based on the propagation time of ultrasound when the transducer units are directly pressed together, the propagation time of ultrasound and the distance between the transducers when the tissue is held between the pair of transducer units. By this method, an accurate value for the speed of sound in the tissue unaffected by changes in the properties of the acoustic matching material filling the transducer covers, can be computed.

摘要翻译： 用于测量诸如骨骼的组织中的声音速度的方法。 首先，测量一对传感器单元的传感器盖在预定压力下被压在一起，测量超声波，并且测量超声波从一个传感器传播到另一个传感器所花费的时间。 接下来，在相同的预定压力下将组织保持在一对换能器单元之间，测量超声波，并测量超声波从一个传感器到另一个传感器的时间，并且两个换能器之间的距离 被测量。 然后，当将传感器单元直接压在一起时，超声的传播时间，超声的传播时间和当组织被保持在一对换能器单元之间时，换能器之间的距离，基于超声的传播时间，计算组织中的声音速度。 通过这种方法，可以计算不受填充换能器盖的声匹配材料的性质变化影响的组织中的声速的精确值。

公开(公告)号：US5895357A

公开(公告)日：1999-04-20

申请号：US789631

申请日：1997-01-27

申请人： Naoki Ohtomo

发明人： Naoki Ohtomo

IPC分类号： A61B8/08 ,  A61B3/00

CPC分类号： A61B8/0875

摘要： A bone assessment apparatus for diagnosing bone by transmitting and receiving measuring waves (in particular ultrasonic waves) is provided. A body part (e.g. a foot) is gripped by a pair of transducer assemblies, and ultrasonic waves are transmitted and received in this state. Each transducer assembly comprises an ultrasonic transducer and a coupler. The transverse cross-sectional area of the ultrasonic wave beam is adjusted by adjusting the contact area of the coupler on the body part, by changing the vibrating area of the ultrasonic transducer, or by fitting an attachment which narrows the ultrasonic wave beam to the transducer assembly. The transverse cross-sectional area of the ultrasonic wave beam may be changed depending on the size of the body part to be measured.