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公开(公告)号：US5457863A
公开(公告)日：1995-10-17
申请号：US34992
申请日：1993-03-22
CPC分类号： B06B1/0622 , A61B8/4483 , A61B8/4494 , Y10T29/42
摘要： An improved two-dimensional ultrasonic transducer array is provided by forming a plurality of elongated transducer strips each including a central body of piezoelectric material having mounted thereon a conducting inner matching layer and outer matching layer, a conducting inner backing layer and a nonconducting lossy outer backing layer, depositing a conducting film on the outer surface and one side surface of the outer matching layer and into electrical contact with the conducting backing layer of each strip and depositing a plurality of conducting films in space relation to one another on the back surface and one side surface of the lossy backing layer and into electrical contact with the conducting backing layer to provide an electric circuit to the front and back faces of the piezoelectric layer. The strips are then assembled in spaced parallel relation with insulating strips bonded therebetween, and grooves are cut transversely of the transducer strip through the matching layers, the piezoelectric layer, the inner backing layer and into but not through the lossy backing layer to thereby provide an array of individual transducers arranged in spaced parallel rows with conducting films extending from the face and back surfaces of each transducer to provide an independent electrical circuit to each transducer in the array.
摘要翻译： 通过形成多个细长的换能器带来提供改进的二维超声波换能器阵列，每个细长的换能器条包括压电材料的中心体，其上安装有导电内部匹配层和外部匹配层，导电内部背衬层和不导电有损耗的外部背衬 在外部匹配层的外表面和一个侧表面上沉积导电膜并与每个条的导电背衬层电接触并且在背面上彼此空间上沉积多个导电膜，一个 并且与导电背衬层电接触以提供到压电层的前表面和后表面的电路。 然后将条带以与之间的绝缘条隔开平行的关系组装，并且通过匹配层，压电层，内衬层横向切割槽，并且通过有损背衬层而不通过有损背衬层， 阵列的各个换能器以间隔开的平行排布置，导电膜从每个换能器的表面和后表面延伸，为阵列中的每个换能器提供独立的电路。
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公开(公告)号：US4825117A
公开(公告)日：1989-04-25
申请号：US126138
申请日：1987-11-27
IPC分类号： B06B1/06 , B29C70/54 , G10K11/00 , H01L41/053 , H01L41/08
CPC分类号： B06B1/067 , B29C70/54 , G10K11/004 , H01L41/053
摘要： An apparatus for monitoring the curing of a fiber reinforced composite plastic which is cured at temperatures of the order of 350.degree. C. and an ultrasonic transducer assembly useful in the apparatus. The transducer assembly comprises a lithium niobate piezoelectric element having anisotropic coefficients of thermal expansion which is mounted on a metal base of the transducer assembly by means of a layer of structured copper. The structured copper is thermo-compression diffusion bonded to the lithium niobate element and to the metal base, and is compliant in a transverse direction to compensate for differential thermal expansions while affording good electrical and thermal conductivity and good acoustic coupling between the lithium niobate element and metal base.
摘要翻译： 一种用于监测在350℃温度下固化的纤维增强复合塑料的固化的装置和在该装置中有用的超声换能器组件。 换能器组件包括具有各向异性热膨胀系数的铌酸锂压电元件，其通过结构化铜层安装在换能器组件的金属基座上。 结构化铜是热压缩扩散结合到铌酸锂元素和金属基底上，并且在横向方向上是柔性的，以补偿不同的热膨胀，同时提供良好的导电性和导热性，以及铌酸锂元素与铌酸锂元素之间良好的声耦合 金属底座。
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3.发明授权System and method for adapting the behavior of a diagnostic medical ultrasound system based on anatomic features present in ultrasound images 有权基于超声图像中存在的解剖特征来适应诊断医学超声系统的行为的系统和方法公开(公告)号：US07092749B2
公开(公告)日：2006-08-15
申请号：US10459650
申请日：2003-06-11
IPC分类号： A61B8/00
CPC分类号： A61B8/54 , A61B8/00 , G01S7/5205 , G01S7/52073 , G06F19/00 , G06F19/321 , G06F19/324 , G16H40/63 , G16H50/50
摘要： A diagnostic medical imaging system is disclosed, such as a diagnostic medical ultrasound system, which uses operational rules or an anatomic model of an anatomical structure as an organizational framework for applying anatomy-specific auxiliary/secondary information. After processing the operational rules on the acquired images or associating the model with the acquired images, adapting/fitting the model to match the images if necessary, the imaging system can associate aspects of the images being acquired with the auxiliary/secondary information, allowing the imaging system to behave as if it “knows” what it is scanning. The auxiliary information may be rules that affect the behavior of the imaging system, or may be the acquired image samples. System behavior may then be automatically adapted or the operator may be prompted to make operational changes.
摘要翻译： 公开了诊断医学成像系统，例如诊断医疗超声系统，其使用解剖结构的操作规则或解剖模型作为用于应用解剖特异辅助/次要信息的组织框架。 在处理获取的图像上的操作规则或将模型与所获取的图像相关联后，如果需要，适配/拟合模型以匹配图像，则成像系统可以将正在获取的图像的方面与辅助/次要信息相关联， 成像系统的行为就好像它“知道”什么是扫描。 辅助信息可以是影响成像系统的行为的规则，或者可以是获取的图像样本。 然后可以自动调整系统行为，或者可能会提示操作员进行操作更改。
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4.发明授权Techniques for calculating ultrasonic integrated backscatter using frequency or time domain techniques 失效使用频率或时域技术计算超声波积分反向散射的技术
公开(公告)号：US4873984A
公开(公告)日：1989-10-17
申请号：US869502
申请日：1986-05-30
申请人： Thomas J. Hunt , James G. Miller , Lewis J. Thomas, III , Hewlett E. Melton, Jr. , Thomas A. Shoup
发明人： Thomas J. Hunt , James G. Miller , Lewis J. Thomas, III , Hewlett E. Melton, Jr. , Thomas A. Shoup
CPC分类号： G01S7/52036 , A61B8/08 , G01N29/0609 , G01S7/52025 , G01S7/52033
摘要： Apparatus for deriving signals indicating a condition of tissue within an area by launching spaced supersonic pulses into a body under examination and detecting the power of supersonic waves scattered from locations along a plurality of known paths. Gain control elements are provided for compensating for changes in amplitude of the scattered supersonic waves resulting from their passage through blood or tissue, the increased attenuation with frequency of the spectrum of the launched pulses and the focussing of the launched pulses. Compensation for ring-down and the attenuation of the chest wall is also provided.
摘要翻译： 用于通过向被检体内发射间隔超声波脉冲并检测从沿着多个已知路径的位置散射的超声波的功率来导出指示区域内的组织状况的信号的装置。 增益控制元件被提供用于补偿由于它们通过血液或组织而导致的散射超声波的幅度变化，随着所发射的脉冲的频谱的频率的增加的衰减以及所发射的脉冲的聚焦。 还提供了减震的补偿和胸壁的衰减。
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公开(公告)号：US4758803A
公开(公告)日：1988-07-19
申请号：US73250
申请日：1987-07-13
申请人： Lewis J. Thomas, III
发明人： Lewis J. Thomas, III
IPC分类号： B29C70/06 , B29C35/02 , C08J5/04 , G01N3/00 , G01N29/12 , G01N33/44 , H03B5/30 , H03B5/32 , B29G7/00 , H03B5/00
CPC分类号： G01N33/442 , B29C35/0288 , G01N29/12 , B29C2037/903 , G01N2203/0092 , G01N2291/0235 , G01N2291/0251
摘要： Changes in the ultrasonic properties of fiber-reinforced plastics during the curing process are monitored by a marginal oscillator to determine the degree of cure. The plastic sample and transmitting and receiving transducers serve as a narrowband acoustic resonator and are placed in the feedback loop of a variable gain amplifier; using gain control the system is allowed to marginally oscillate. The resonant frequency of the sample and amplifier gain are related to the velocity and attenuation of sound in the plastic and are determined by measuring the received signal frequency and amplifier gain control voltage. The system has frequency locking means to track changes in resonant frequency during the cure cycle.
摘要翻译： 在固化过程中纤维增强塑料的超声波特性的变化由边缘振荡器监测以确定固化程度。 塑料样品和发射和接收换能器用作窄带声谐振器，并放置在可变增益放大器的反馈回路中; 使用增益控制系统允许边缘振荡。 样品和放大器增益的谐振频率与塑料中的声音的速度和衰减有关，并通过测量接收到的信号频率和放大器增益控制电压来确定。 该系统具有频率锁定装置，以在固化周期期间跟踪谐振频率的变化。
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公开(公告)号：US07567016B2
公开(公告)日：2009-07-28
申请号：US11051349
申请日：2005-02-04
IPC分类号： H01L41/047 , H01L41/083
CPC分类号： B06B1/0622
摘要： In k31 mode, a vibration is along an axis or orthogonal to the poling or electric field orientation. The direction of vibration is toward a face of an ultrasound transducer array. For each element of the array, electrodes are formed perpendicular to the face of the array, such as along the sides of the elements. Piezoelectric material is poled along a dimension parallel with the face of the transducer and perpendicular to the direction of acoustic energy propagation. Using elements designed for k31 resonant mode operation may provide for a better electrical impedance match, such as where small elements sizes are provided for a multi-dimensional transducer arrays. For additional impedance matching, the elements may be made from multiple layers of piezoelectric ceramic. Since the elements operate from a k31 mode, the layers are stacked along the poling direction or perpendicular to a face of the transducer array for transmitting or receiving acoustical energy.
摘要翻译： 在k31模式下，振动沿轴线或正交于极化或电场取向。 振动的方向是朝向超声波换能器阵列的面。 对于阵列的每个元件，电极垂直于阵列的表面形成，例如沿着元件的侧面。 压电材料沿着与换能器的表面平行且垂直于声能传播方向的尺寸极化。 使用为k31谐振模式操作设计的元件可以提供更好的电阻抗匹配，例如为多维换能器阵列提供小元件尺寸的那些。 对于额外的阻抗匹配，元件可以由多层压电陶瓷制成。 由于元件从k31模式操作，所以这些层沿着极化方向或垂直于换能器阵列的表面堆叠以发射或接收声能。
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7.发明授权Apparatus and method for acquiring imaging signals with reduced number of interconnect wires 失效用于获取具有减少数量的互连线的成像信号的装置和方法
公开(公告)号：US5226847A
公开(公告)日：1993-07-13
申请号：US830020
申请日：1992-01-31
CPC分类号： G01S7/52023 , A61B8/12 , A61B8/445 , G01S7/526
摘要： Apparatus for echo mode imaging of a blood vessel is disclosed having a plurality of transducers that transmit a substantially unfocused omni-directional signal in at least one plane towards the vessel. The reflected signal is received and transmitted in time multiplexed form to an Analog-to-Digital converter. Thus the required number of interconnecting wires is reduced. A method for imaging a blood vessel comprises transmitting an unfocused signal in a substantially omni-directional manner in at least one plane, receiving reflections from the vessel, and transmitting the received signals in time multiplexed form for imaging.
摘要翻译： 公开了一种用于血管回波模式成像的装置，其具有多个换能器，所述多个换能器在至少一个平面中向血管传送基本上未聚焦的全向信号。 反射信号以时间复用形式被接收和传输到模数转换器。 因此，所需数量的互连电线减少。 一种用于对血管进行成像的方法包括：在至少一个平面中以基本上全方式的方式发送未聚焦的信号，从血管接收反射，并且以时间复用形式发送所接收的信号用于成像。
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8.发明授权High frequency focused ultrasonic transducer for invasive tissue characterization 失效用于侵入性组织表征的高频聚焦超声波换能器
公开(公告)号：US4911170A
公开(公告)日：1990-03-27
申请号：US235067
申请日：1988-08-22
CPC分类号： A61B8/12 , A61B2017/22001 , A61M25/104
摘要： A broadband 25 to 50 MHz spherically focused ultrasonic transducer is placed on the tip of a catheter such that ultrasonic images of arteries and plaque are produced by introducing the catheter into arteries of patients. The high frequency transducer has thin piezoelectric polymer film as the transducing element and is adhered to a depression in the reduced cross section catheter tip. A coaxial cable in the catheter connects the transducer to an external signal source and a display for the received signals. The diagnosis and characterization of arterial disease is most often coupled with a therapeutic technique such as balloon angioplasty.
摘要翻译： 将宽带25至50MHz的球形聚焦超声波换能器放置在导管的尖端上，使得通过将导管引入患者的动脉中来产生动脉和斑块的超声波图像。 高频换能器具有作为转导元件的薄压电聚合物膜，并且在减小的横截面导管尖端中粘附到凹陷。 导管中的同轴电缆将传感器连接到外部信号源和接收信号的显示器。 动脉疾病的诊断和表征通常与诸如球囊血管成形术的治疗技术相结合。
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9.发明授权Method and apparatus for applying synthetic aperture focusing techniques to a catheter based system for high frequency ultrasound imaging of small vessels 失效将合成孔径聚焦技术应用于基于导管的系统用于小血管的高频超声成像的方法和装置
公开(公告)号：US5186177A
公开(公告)日：1993-02-16
申请号：US803242
申请日：1991-12-05
CPC分类号： G01S15/892 , A61B8/12 , G01S15/8927 , G01S15/8956 , G01S15/8997 , G01S7/52047 , A61B8/445
摘要： A catheter based ultrasound imaging system is disclosed which is capable of providing images of coronary vessels at frequencies near 50 MHz. The catheter based system implements a Synthetic Aperture Focusing Technique (SAFT) by scanning through a miniature ultrasound transducer array to sequentially select and fully multiplex a subset of array elements to operate as a sub-aperture of the total synthetic aperture on each firing; thus reducing the number of required catheter interconnections. Each synthetic aperture array is dynamically and retrospectively focused to accommodate precision imaging at high frequency without conventional signal to noise losses.
摘要翻译： 公开了一种基于导管的超声成像系统，其能够在50MHz附近提供冠状血管的图像。 基于导管的系统通过扫描微型超声换能器阵列来实现合成孔径聚焦技术（SAFT），以顺序选择并完全复用阵列元件的子集，以在每次烧制时作为总合成孔径的子孔径进行操作; 从而减少所需导管互连的数量。 每个合成孔径阵列是动态和回顾性的聚焦，以适应高频下的精密成像，而没有常规的信噪比损失。
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10.发明授权
公开(公告)号：US4921415A
公开(公告)日：1990-05-01
申请号：US272358
申请日：1988-11-15
IPC分类号： B06B1/06 , B29C70/54 , G10K11/00 , H01L41/053
CPC分类号： B06B1/067 , B29C70/54 , G01N29/2475 , G10K11/004 , H01L41/053 , G01N2291/0251 , G01N2291/0421 , G01N2291/0422
摘要： An apparatus for monitoring the curing of a fiber reinforced composite plastic which is cured at temperatures of the order of 350.degree. C. and an ultrasonic transducer assembly useful in the apparatus. The transducer assembly comprises a lithium niobate piezoelectric element having anisotropic coefficients of thermal expansion which is mounted on a metal base of the transducer assembly by means of a layer of structured copper. The structured copper is thermo-compression diffusion bonded to the lithium niobate element and to the metal base, and is compliant in a transverse direction to compensate for differential thermal expansions while affording good electrical and thermal conductivity and good acoustic coupling between the lithium niobate element and metal base.
摘要翻译： 一种用于监测在350℃温度下固化的纤维增强复合塑料的固化的装置和在该装置中有用的超声换能器组件。 换能器组件包括具有各向异性热膨胀系数的铌酸锂压电元件，其通过结构化铜层安装在换能器组件的金属基座上。 结构化铜是热压缩扩散结合到铌酸锂元素和金属基底上，并且在横向方向上是柔性的，以补偿不同的热膨胀，同时提供良好的导电性和导热性，以及铌酸锂元素与铌酸锂元素之间良好的声耦合 金属底座。
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