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1.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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公开(公告)号：US4870279A
公开(公告)日：1989-09-26
申请号：US208629
申请日：1988-06-20
CPC分类号： G01T1/202 , G01T1/2018
摘要： An imaging X-ray sensor is composed of a linear array of microscopically small bars of polycrystalline ceramic scintillator material bonded at the bar ends to an integrated circuit photodetector array. The scintillator bars are the basic resolution elements of the detector and are less than 50 microns in width. Each bar produces a flash of light with intensity related to the X-ray flux penetrating the bar. A reflective coating covering five surfaces of the bars isolates each detector element and channels the light into the photodetector bonded to one end of the bar. A method of fabricating the detector array utilizes the machineability and good mechanical strength of scintillators such as rare earth oxides doped with rare earth activators.
摘要翻译： 成像X射线传感器由在棒端部结合到集成电路光电检测器阵列的多晶陶瓷闪烁体材料的微观小棒的线性阵列组成。 闪烁棒是检测器的基本分辨率元件，宽度小于50微米。 每个棒产生与通过棒的X射线通量相关的强度的闪光。 覆盖杆的五个表面的反射涂层隔离每个检测器元件并将光通过结合到杆的一端的光电检测器。 一种制造检测器阵列的方法利用掺杂有稀土活化剂的稀土氧化物等闪烁体的机械性能和良好的机械强度。
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公开(公告)号：US4979199A
公开(公告)日：1990-12-18
申请号：US429743
申请日：1989-10-31
申请人： Michael K. Cueman , Lewis J. Thomas, III , Casmir R. Trzaskos , August D. Matula , Michael J. Austin
发明人： Michael K. Cueman , Lewis J. Thomas, III , Casmir R. Trzaskos , August D. Matula , Michael J. Austin
摘要： A microfocus X-ray tube has an anode that emits X-rays and, a biproduct of its waste heat, visible and near infrared light. This invention uses the biproduct light to adjust and maintain the focus of the electron beam and enhance the performance of the X-ray tube as a point source of X-rays. Only the light is reflected by a mirror along a path in which a viewport is placed in the tube envelope. An sensor, e.g., a photodiode, or television camera, is placed in the path. A display means, e.g., a television display, meter, etc., can be connected to the sensing means to display the emitting spot of the anode or the amplitude of the emission. The focus of the X-ray tube is assured by observing the biproduct light and adjusting the electron beam to either minimize the size of the glowing spot or maximizing its apparent brightness. A method for use with an emitter of first and second types of radiation comprises reflecting only the second type of radiation, and sensing the reflected radiation. A microfocus X-ray tube features a mirror for reflecting light but not X-rays. A viewport such as quartz can be disposed in the path of the reflected light in the tube envelope.
摘要翻译： 微焦点X射线管具有发射X射线的阳极和其余热的可见光和近红外光的二次产物。 本发明使用双色光调节和保持电子束的焦点，并增强作为X射线点的X射线管的性能。 只有光沿着视口被放置在管外壳中的路径被反射镜反射。 诸如光电二极管或电视摄像机的传感器被放置在路径中。 诸如电视显示器，仪表等的显示装置可以连接到感测装置以显示阳极的发射点或发射的幅度。 通过观察二元光并调整电子束来确保X射线管的焦点，以使发光斑点的尺寸最小化或使其表观亮度最大化。 用于第一和第二类型辐射的发射器的方法包括仅反射第二类型的辐射并且感测反射的辐射。 微焦点X射线管具有用于反射光而不是X射线的反射镜。 诸如石英的视口可以设置在管外壳中的反射光的路径中。
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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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5.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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6.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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7.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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10.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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