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1. 发明授权

US4961176A Ultrasonic probe 失效
标题翻译：超声波探头
公开(公告)号：US4961176A
公开(公告)日：1990-10-02
申请号：US447491
申请日：1989-12-07
申请人： Hideyuki Tanaka , Koetsu Saito , Ikuo Sakai , Masami Kawabuchi
发明人： Hideyuki Tanaka , Koetsu Saito , Ikuo Sakai , Masami Kawabuchi
IPC分类号： G01N29/24 , A61B8/00 , B06B1/06
CPC分类号： B06B1/0625
摘要： An ultrasonic probe includes a first group of one or more piezoelectric elements extending concentrically, and a second group of one or more piezoelectric elements extending concentrically and extending outward of the elements in the first group. The elements in the first and second groups form a front surface via which ultrasonic wave is transmitted and received. The elements in the first and second groups are separated by predetermined gaps. Areas of the respective elements in the second group over the front surface are substantially equal to each other within an accuracy corresponding to areas of the gaps over the front surfaces. Areas of the respective elements in the first group over the front surface are substantially equal to half the areas of the respective elements in the second group within an accuracy corresponding to the areas of the gaps.

2. 发明授权

US5030874A Ultrasonic probe 失效
标题翻译：超声波探头
公开(公告)号：US5030874A
公开(公告)日：1991-07-09
申请号：US455797
申请日：1989-12-28
申请人： Koetsu Saito , Masami Kawabuchi
发明人： Koetsu Saito , Masami Kawabuchi
IPC分类号： B06B1/06 , G01N29/24
CPC分类号： G01N29/2437 , B06B1/0607 , B06B1/0629 , G01N2291/0423 , Y10S310/80
摘要： Disclosed is an ultrasonic probe using a compound piezoelectric material made of piezoelectric ceramic and organic polymer. On one principal plane of the compound piezoelectric material, electrodes and electric terminals conducting to these electrodes are formed, and these electrodes and electric terminals are divided into a plurality. On the other principal plane of the compound piezoelectric material, a common electrode is provided, and an acoustic matching layer is mounted on it either intact or divided in correspondence to the divided electrodes. By using part of the compound piezoelectric material as the electric terminal take-out portion, the mechanical strength of the electric terminal take-out portion can be improved, which is particularly preferable for the ultrasonic probe driven at high frequency.
摘要翻译：公开了使用由压电陶瓷和有机聚合物制成的复合压电材料的超声波探头。在复合压电材料的一个主平面上形成导电于这些电极的电极和电端子，并将这些电极和电端子分成多个。在复合压电材料的另一个主平面上，设置有公共电极，并且声学匹配层安装在其上，完整地或对应于划分的电极分开。通过使用复合压电材料的一部分作为电端子取出部，可以提高电端子取出部的机械强度，这对于在高频下驱动的超声波探头是特别优选的。

3. 发明授权

US5042493A Ultrasonic probe and method of manufacturing the same 失效
标题翻译：超声波探头及其制造方法
公开(公告)号：US5042493A
公开(公告)日：1991-08-27
申请号：US365405
申请日：1989-06-13
申请人： Koetsu Saito , Masami Kawabuchi
发明人： Koetsu Saito , Masami Kawabuchi
IPC分类号： G01N29/24 , A61B8/00 , B06B1/06 , H04R17/00
CPC分类号： B06B1/0622 , Y10T29/42
摘要： A laminated body is formed. The laminated body includes layers. One of the layers includes a piezoelectric array. The laminated body is engaged with both a pressing film and a curved member having a curved outer surface. A tension is exerted on the pressing film to press the laminated body against the curved outer surface of the curved member so that the laminated body is bent along the curved outer surface of the curved member. The use of the pressing film may be replaced by a process in which at least one of the layers is subjected to a tension to bend the laminated body.

4. 发明授权

US4699150A Ultrasonic transducer assembly for medical diagnostic examinations 失效
标题翻译：用于医学诊断检查的超声波换能器组件
公开(公告)号：US4699150A
公开(公告)日：1987-10-13
申请号：US864563
申请日：1986-05-16
申请人： Masami Kawabuchi , Koji Matsuo , Fumio Muramatsu , Akira Fukumoto , Koetsu Saito
发明人： Masami Kawabuchi , Koji Matsuo , Fumio Muramatsu , Akira Fukumoto , Koetsu Saito
IPC分类号： A61B8/00 , G01N29/04 , G01N29/24 , G10K11/02 , G10K11/30 , H04R17/00 , A61B10/00
CPC分类号： G10K11/02 , G10K11/30
摘要： An ultrasonic transducer for medical diagnostic examinations which comprises a transducer element having one surface through ultrasonic waves are emitted, an acoustic impedance matcher, and a contact member brought to contact with an object being examined and formed on the one surface of the ultrasonic transducer element. The contact member includes at least a flat plate or an acoustic lens made of a-4-methylpentene-1-base polymer which has high mechanical strength. Transducer arrays and assemblies using such polymer as a member directly contacted with human body are also described.
摘要翻译：发射用于医疗诊断检查的超声波换能器，其包括具有通过超声波的一个表面的换能器元件，声阻抗匹配器和与被检查物体接触并且形成在超声换能器元件的一个表面上的接触构件。接触构件至少包括具有高机械强度的由4-甲基戊烯-1-基聚合物制成的平板或声透镜。还描述了使用这种聚合物作为与人体直接接触的部件的传感器阵列和组件。

5. 发明授权

US4571520A Ultrasonic probe having a backing member of microballoons in urethane rubber or thermosetting resin 失效
标题翻译：超声波探头在聚氨酯橡胶或热固性树脂中具有微球背衬构件
公开(公告)号：US4571520A
公开(公告)日：1986-02-18
申请号：US618369
申请日：1984-06-07
申请人： Koetsu Saito , Masami Kawabuchi , Keisaku Yamaguchi , Keiji Iijima
发明人： Koetsu Saito , Masami Kawabuchi , Keisaku Yamaguchi , Keiji Iijima
IPC分类号： B06B1/06 , G10K11/16 , H01L41/08
CPC分类号： G10K11/002 , B06B1/0622 , G10K11/165
摘要： An ultrasonic probe for use in ultrasonic imaging systems includes an array of piezoelectric transducer elements. The array is backed by a rear member of an energy absorbing material composed of a mixture of urethane rubber and microballoons. The rear member has a Shore-A hardness greater than 85, an ultrasonic absorption coefficient greater than 1.5 dB/mm at the frequency of energy generated by the array and an acoustic impedance in the range between 1.0.times.10.sup.5 g/cm.sup.2 sec and 3.0.times.10.sup.5 g/cm.sup.2 sec. Alternatively, the rear member is composed of a mixture of thermosetting resin, microballoons and solid particles. Preferably, a thermosetting resin layer is provided between the array and the rear member to ensure against disconnection of wire leads from transducer electrodes.
摘要翻译：用于超声波成像系统的超声波探头包括压电换能元件阵列。该阵列由由聚氨酯橡胶和微球的混合物组成的能量吸收材料的后部构件支撑。后部构件的肖氏A硬度大于85，在由阵列产生的能量频率处的超声波吸收系数大于1.5dB / mm，声阻抗在1.0×10 5 g / cm 2 sec至3.0×10 5 g / cm 2 sec。或者，后部构件由热固性树脂，微球和固体颗粒的混合物组成。优选地，在阵列和后部构件之间设置热固性树脂层，以确保电线引线与换能器电极断开。

6. 发明授权

US4616152A Piezoelectric ultrasonic probe using an epoxy resin and iron carbonyl acoustic matching layer 失效
标题翻译：压电超声波探头采用环氧树脂和羰基铁声匹配层
公开(公告)号：US4616152A
公开(公告)日：1986-10-07
申请号：US668214
申请日：1984-11-05
申请人： Koetsu Saito , Keisaku Yamaguchi , Masami Kawabuchi
发明人： Koetsu Saito , Keisaku Yamaguchi , Masami Kawabuchi
IPC分类号： A61B8/00 , B06B1/06 , G10K11/02 , H04R1/22 , H04R17/00 , H01L41/08
CPC分类号： B06B1/0622 , G10K11/02
摘要： An ultrasonic probe for an ultrasonic medical diagnostic apparatus which is composed of a piezoelectric vibrator with electrodes attached onto both surfaces thereof and one or two acoustic matching layers which are provided on the surface of one electrode of the piezoelectric vibrator. One of the acoustic matching layers is made of thermosetting resin such as epoxy resin mixed with magnetic material. A backing load member which is made of ferrite rubber or plastic mixed with tungsten powder is provided on the surface of the other electrode of the piezoelectric vibrator. An acoustic lens which is made of silicone rubber may be disposed on the upper acoustic matching layer. The acoustic matching layers may be formed by pouring the materials, thereby to form the ultrasonic probe without an intermedium of a different kind of material on the piezoelectric vibrator.
摘要翻译：一种用于超声波医疗诊断装置的超声波探头，其由附着在其两个表面上的电极的压电振动器和设置在压电振动器的一个电极的表面上的一个或两个声匹配层组成。声匹配层之一由热固性树脂制成，例如与磁性材料混合的环氧树脂。在压电振动器的另一个电极的表面上设置由铁氧体橡胶或与钨粉混合的塑料制成的背衬负载构件。由硅橡胶制成的声透镜可以设置在上声匹配层上。声匹配层可以通过浇注材料形成，从而形成超声波探头，而不需要在压电振动器上使用不同种类材料的介质。

7. 发明授权

US6068599A Blood vessel puncturing device using ultrasound 失效
标题翻译：血管穿刺装置使用超声波
公开(公告)号：US6068599A
公开(公告)日：2000-05-30
申请号：US114184
申请日：1998-07-13
申请人： Koetsu Saito , Shuko Tomisawa , Toru Nibuya , Masami Kawabuchi
发明人： Koetsu Saito , Shuko Tomisawa , Toru Nibuya , Masami Kawabuchi
IPC分类号： A61B8/08 , A61B17/34 , A61B8/02
CPC分类号： A61B8/0841 , A61B17/3403 , A61B8/0833 , A61B8/462 , A61B2017/3413 , A61B5/489
摘要： A blood vessel puncturing device includes an ultrasound sensor which is brought into close contact with a subject body via an ultrasound propagation medium in the form of gel. The ultrasound sensor transmits and receives an ultrasound wave. The device further includes a processor which processes a signal derived from the ultrasound wave received at the ultrasound sensor so as to display an image of the subject body including a superficial blood vessel. While watching the displayed image, an operator sticks a puncturing needle at an angle of not greater than 30 degrees relative to the subject body along an ultrasound scanning surface of the ultrasound sensor and inserts the tip of the puncturing needle into the blood vessel. It may be arranged that a change in blood flow in the blood vessel is detected based on a Doppler signal or a change in luminance at a designated region on the displayed image is detected, and the detected change is notified in the form of an audible sound so that the operator confirms insertion of the puncturing needle into the blood vessel.
摘要翻译：血管穿刺装置包括超声波传感器，该超声波传感器经由凝胶形式的超声波传播介质与受检者体紧密接触。超声波传感器发送和接收超声波。该装置还包括处理器，其处理从超声波传感器接收的超声波得到的信号，以便显示包括浅表血管的被检体的图像。在观看显示图像的同时，操作者沿着超声波传感器的超声波扫描面相对于被检体进行30度以下的角度的穿刺针，将穿刺针的前端插入血管内。可以设置基于多普勒信号或者显示图像上的指定区域的亮度变化来检测血管中的血流变化，并且以可听见的声音的形式通知检测到的变化使得操作者确认穿刺针插入血管中。

8. 发明授权

US5142187A Piezoelectric composite transducer for use in ultrasonic probe 失效
标题翻译：用于超声波探头的压电复合传感器
公开(公告)号：US5142187A
公开(公告)日：1992-08-25
申请号：US394458
申请日：1989-08-16
申请人： Koetsu Saito , Masami Kawabuchi
发明人： Koetsu Saito , Masami Kawabuchi
IPC分类号： G01N29/24 , A61B8/00 , B06B1/06 , H04R1/44 , H04R17/00
CPC分类号： G01N29/245 , B06B1/0622
摘要： There is herein disclosed a piezoelectric composite transducer comprising a plurality of piezoelectric ceramic poles. The plurality of piezoelectric ceramic poles are arranged two-dimensionally so as to form spaces therebetween. Organic films are disposed on both end surfaces of the plurality of piezoelectric ceramic poles so that the spaces forms hollow portions. The hollow portions causes making small its acoustic impedance up to a value close to the acoustic impedance of water or a human body.

9. 发明授权

US5127418A Ultrasonic diagnostic apparatus 失效
标题翻译：超声波诊断仪
公开(公告)号：US5127418A
公开(公告)日：1992-07-07
申请号：US543890
申请日：1990-06-27
申请人： Ikuo Sakai , Yasuhiro Nakamura , Masami Kawabuchi
发明人： Ikuo Sakai , Yasuhiro Nakamura , Masami Kawabuchi
IPC分类号： G01S15/58
CPC分类号： G01S15/8984 , G01S15/582
摘要： Pulses of an ultrasonic wave beam are emitted into a body at a predetermined repetition period. Echo pulses of the ultrasonic wave beam are received via a pulrality of different channels. Each of the received pulses is converted into corresponding electric signals of the respective channels. A pair of adders invert signs of alternate ones of pairs of the electric signals of adjacent channels, summing the inverted sign electric signals with remaining non-inverted sign electric signals, converting the electric signals into a pair of complex signals having phases which are spatially different from each other by 90 degrees. An autocorrelation function of the complex signals is calculated. A component of a speed of moving matter within the body in a predetermined direction is calculated on the basis of the autocorrelation function. The moving matter causes the echo pulses. The predetermined direction is perpendicular to a direction of travel of the ultrasonic wave beam pulses.
摘要翻译：超声波束的脉冲以预定的重复周期被发射到体内。通过不同通道的脉冲串接收超声波束的回波脉冲。每个接收的脉冲被转换成相应通道的相应的电信号。一对加法器反转相邻通道的电信号对的交替信号的符号，将反相符号电信号与剩余的非反相符号电信号相加，将电信号转换成具有在空间上不同的相位的一对复信号彼此相差90度。计算复信号的自相关函数。基于自相关函数计算体内在预定方向上运动物质的速度的分量。移动物质会导致回波脉冲。预定方向垂直于超声波束脉冲的行进方向。

10. 发明授权

US5065764A Ultrasonic doppler blood flow velocity detection apparatus 失效
标题翻译：超声波多普勒血液流速检测装置
公开(公告)号：US5065764A
公开(公告)日：1991-11-19
申请号：US452653
申请日：1989-12-19
申请人： Yasuhiro Nakamura , Ikuo Sakai , Masami Kawabuchi
发明人： Yasuhiro Nakamura , Ikuo Sakai , Masami Kawabuchi
IPC分类号： A61B8/06 , G01S15/58
CPC分类号： G01S15/584 , A61B8/06 , G01S15/582
摘要： An ultrasonic Doppler blood flow velocity detection apparatus comprises: a signal producing circuit for producing trigger pulses, a sampling clock signal having a given phase relation with the trigger pulses, and a pair of quadrature signals of a given frequency in response to the trigger pulses. A transducer transmits also receives ultrasonic waves in response to the trigger pulses; The transducer also receives ultrasonic waves reflected back by an ultrasonic-wave reflective object and converts the received ultrasonic waves into an electric echo signal. A Doppler shift detection circuit, responsive to the pair of quadrature signals and the echo signal, detects the Doppler shift. An averaging circuit, responsive to the sampling clock, and the Doppler shift; averages plural time-different values of the Doppler shift, thereby producing a signal indicative of flow velocity of the ultrasonic-wave reflective object. The detection apparatus may further comprise a weighting circuit responsive to the output of the Doppler detection circuit and the sampling clock signal for weighting every value of the plural time-different values.
摘要翻译：超声波多普勒血流速度检测装置包括：产生触发脉冲的信号产生电路，与触发脉冲具有给定相位关系的采样时钟信号，以及响应于触发脉冲的给定频率的一对正交信号。换能器发射还响应于触发脉冲接收超声波; 换能器还接收由超声波反射物体反射的超声波，并将接收到的超声波转换成电回波信号。响应于该对正交信号和回波信号的多普勒频移检测电路检测多普勒频移。平均电路，响应采样时钟和多普勒频移; 平均多普勒频移的多个时间不同的值，从而产生表示超声波反射物体的流速的信号。检测装置还可以包括响应于多普勒检测电路的输出的加权电路和用于对多个时间不同值的每个值进行加权的采样时钟信号。

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