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公开(公告)号：US4812760A
公开(公告)日：1989-03-14
申请号：US78427
申请日：1987-07-27
CPC分类号： G01R33/446
摘要： A single rotating NMR .pi. pulse provides simultaneous spatially-selective inversion or spin-echo refocussing of nuclear pins in two orthogonal dimensions. The two-dimensional spatially-selective pulse utilizes a single RF pulse, with either a square of an amplitude-modulated or a frequency-modulated envelope, and applied in the presence of an amplitude-modulated magnetic field gradient which reorients through the desired dimensions in which selection is desired while the RF pulse is present. These rotating, or ".rho.", pulses are useful for reduction of aliasing signal artifacts is restricted field-of-view high-resolution NMR imaging and, when combined with one-dimensional-localized chemical shift spectroscpoy techniques (such as those employing surface detection coils) is especially useful for the production of three-dimensionally localized NMR spectra. Substantial suppression of undesirable residual excited signals, arising from outside the desired two-dimensional spatially selected region, can be obtained by simulated annealing optimization of both the RF and magnetic field gradient amplitude portions of the .rho. pulse and/or by use of surface coil detection. The location of the selected volume is varied by frequency modulation of the RF signal pulse, or by variation of the ratio of currents in the halves of the magnetic field gradient coils.
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公开(公告)号：US20130008361A1
公开(公告)日：2013-01-10
申请号：US13365015
申请日：2012-02-02
CPC分类号： A01C23/007 , A01B79/005 , Y02P60/214 , Y10T137/8158 , Y10T137/85978
摘要： A system for fertilizing a large area. The system may include a fluid bar configured to be towed by a tractor. The fluid bar may include a fluid passageway with at least one aperture and a sensor or meter in communication with the aperture. The aperture may be configured to receive a hose or other attachment distributing fluid to the ground. The system may include a tank, a pump, pump controller and a filter. The pump flow rate and the outlet flow rate may be displayed on monitoring equipment located within a cab of the tractor. The pump controller may be used by the farmer to variably adjust the fluid pressure in each aperture and consequently adjust the flow pressure of fertilizer added to the ground.
摘要翻译： 一个大面积施肥系统。 该系统可以包括构造成由拖拉机牵引的流体杆。 流体条可以包括具有至少一个孔的流体通道和与孔连通的传感器或计量器。 孔可以被配置为接收将流体分配到地面的软管或其它附件。 该系统可以包括罐，泵，泵控制器和过滤器。 泵流量和出口流量可以显示在位于拖拉机驾驶室内的监控设备上。 泵控制器可以由农民使用以可变地调节每个孔中的流体压力，并且因此调节添加到地面的肥料的流动压力。
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3.发明申请METHOD AND SYSTEM FOR BACKGROUND SUPPRESSION IN MAGNETO-MOTIVE PHOTOACOUSTIC IMAGING OF MAGNETIC CONTRAST AGENTS 有权用于磁性对比剂的磁性动态摄影成像中的背景抑制方法和系统公开(公告)号：US20120118052A1
公开(公告)日：2012-05-17
申请号：US13273095
申请日：2011-10-13
申请人： Matthew O'Donnell , Xiaohu Gao
发明人： Matthew O'Donnell , Xiaohu Gao
IPC分类号： G01N29/02
CPC分类号： G01N29/2418 , G01N29/222 , G01N2291/02466
摘要： Method and system for background suppression in magneto-motive photoacoustic imaging of labeled target objects.
摘要翻译： 标记目标物体磁光成像中背景抑制的方法和系统。
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公开(公告)号：US08094802B2
公开(公告)日：2012-01-10
申请号：US11831549
申请日：2007-07-31
CPC分类号： H04M3/523
摘要： A contact originator is given a choice to enqueue the contact in multiple contact queues, to serve multiple needs or interests of the originator. If the contact reaches the head of the queue for the primary need while the contact is being serviced from a queue for a secondary need, the contact either remains at the head of the primary-need queue until the servicing at the secondary-need queue is completed, or a resource of the primary-need queue is conferenced in with the contact and the resource of the secondary-need queue so that the resources can serve both needs simultaneously.
摘要翻译： 联系人发起者可以选择将联系人排队在多个联系人队列中，以满足发起者的多种需求或兴趣。 如果联系人在从辅助需求的队列中服务联系人的情况下到达主要需要的队列的头部，则该联系人将保留在主要需要队列的头部，直到辅助需要队列的服务为 或者主要需求队列的资源与辅助需求队列的联系人和资源进行会议，以便资源同时满足两个需求。
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5.发明授权Method and apparatus for delivering therapy in and association with an intravascular ultrasound device 有权用于在血管内超声装置中进行治疗并与其结合的方法和装置公开(公告)号：US07736317B2
公开(公告)日：2010-06-15
申请号：US10243823
申请日：2002-09-13
IPC分类号： A61B8/12
CPC分类号： B06B1/0633 , A61B8/12 , A61B8/445 , A61B8/4488 , Y10T29/42
摘要： An ultrasound transducer array (408) includes at least one transducer element (412) having a first (604) and second (606) portions separated by an acoustical discontinuity (520). The first portion (604) has the desired length to form a half-wave k31 resonance, while the second portion (606) has a resonant length for an undesired very low frequency out-of-band k31 resonance. The thickness of the transducer element (412) is designed for k33 half-resonance. Given the design, the transducer element (412) can operate and provide for both forward-looking (514) and side looking (512) elevation apertures. A method is also disclosed for using the disclosed ultrasound transducer (412) in ultrasound imaging.
摘要翻译： 超声换能器阵列（408）包括至少一个换能器元件（412），该换能器元件具有由声学不连续性（520）隔开的第一（604）和第二（606）部分。 第一部分（604）具有期望的长度以形成半波k31谐振，而第二部分（606）具有用于不期望的非常低频带外k31谐振的谐振长度。 换能器元件（412）的厚度被设计用于k33半共振。 考虑到设计，换能器元件（412）可以操作并提供前视（514）和侧视（512）仰角孔。 还公开了在超声成像中使用所公开的超声换能器（412）的方法。
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6.发明授权Methods and systems for measuring mechanical property of a vascular wall and method and system for determining health of a vascular structure 有权用于测量血管壁的机械性能的方法和系统，以及用于确定血管结构健康的方法和系统公开(公告)号：US07318804B2
公开(公告)日：2008-01-15
申请号：US10731302
申请日：2003-12-09
申请人： William F. Weitzel , Kang Kim , Matthew O'Donnell , Jonathan M. Rubin , Hua Xie , Xunchang Chen
发明人： William F. Weitzel , Kang Kim , Matthew O'Donnell , Jonathan M. Rubin , Hua Xie , Xunchang Chen
IPC分类号： A61B8/00
摘要： Methods and systems for measuring mechanical property of a vascular wall and a method and system for determining health of a vascular structure are provided wherein local deformation of a vessel wall resulting from physiologic pressures with altered transmural forces is measured. A non-invasive free-hand ultrasound scanning-procedure was performed to apply external force, comparable to the force generated in measuring a subject's blood pressure, to achieve higher strains by equalizing the internal arterial baseline pressure. When the applied pressure matched the internal baseline diastolic pressure, strain and strain rate increased by a factor of 10 over a cardiac cycle. Radial arterial strain was assessed in the vessel wall over the entire deformation procedure using a phase-sensitive, two-dimensional speckle-tracking algorithm. An elastic modulus reconstruction procedure was developed to estimate the non-linear elastic properties of the vascular wall.
摘要翻译： 提供了用于测量血管壁的机械性能的方法和系统以及用于确定血管结构健康的方法和系统，其中测量由具有改变的透壁力的生理压力引起的血管壁的局部变形。 进行非侵入性自由手超声扫描程序以施加外力，与测量受试者血压时产生的力相当，以通过平衡内部动脉基线压力来实现更高的应变。 当施加的压力与内部基线舒张压相匹配时，应变和应变率在心脏周期上增加10倍。 使用相敏二维斑点跟踪算法，在整个变形过程的血管壁中评估径向动脉应变。 开发弹性模量重建程序来估计血管壁的非线性弹性性质。
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公开(公告)号：US06852082B2
公开(公告)日：2005-02-08
申请号：US10198429
申请日：2002-07-17
CPC分类号： A61F6/20
摘要： Apparatuses and methods for performing non-invasive vasectomies are provided. In a preferred embodiment, an apparatus according to the present invention comprises a main body defining a recess and an ultrasonic transducer disposed adjacent said recess and adapted to emit ultrasonic energy into said recess. A tissue clamp is removeably disposed in the recess and is adapted to receive parallel sections of a scrotum that include a portion of the vas deferens. The clamp is further adapted to position the vas deferens within an effective distance of the ultrasonic transducer. Also, the apparatus includes means for retaining the parallel sections and the vas deferens within the clamp during a procedure.
摘要翻译： 提供了用于执行非侵入性输精管切除术的装置和方法。 在优选实施例中，根据本发明的装置包括限定凹部的主体和邻近所述凹部设置并适于向所述凹部发射超声波能量的超声波换能器。 组织夹具可移除地设置在凹部中并且适于接收包括输精管的一部分的阴囊的平行部分。 夹具还适于将输精管定位在超声换能器的有效距离内。 此外，该装置还包括用于在手术期间将夹持器中的平行部分和输精管保持在夹具内的装置。
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公开(公告)号：US06457365B1
公开(公告)日：2002-10-01
申请号：US09501106
申请日：2000-02-09
IPC分类号： G01N2924
CPC分类号： B06B1/0633 , A61B8/12 , A61B8/445 , A61B8/4488 , Y10T29/42
摘要： An ultrasound transducer array (408) includes at least one transducer element (412) having a first (604) and second (606) portions separated by an acoustical discontinuity (520). The first portion (604) has the desired length to form a half-wave k31 resonance, while the second portion (606) has a resonant length for an undesired very low frequency out-of-band k31 resonance. The thickness of the transducer element (412) is designed for k33 half-resonance. Given the design, the transducer element (412) can operate and provide for both forward-looking (514) and side looking (512) elevation apertures. A method is also disclosed for using the disclosed ultrasound transducer (412) in ultrasound imaging.
摘要翻译： 超声换能器阵列（408）包括至少一个换能器元件（412），该换能器元件具有由声学不连续性（520）隔开的第一（604）和第二（606）部分。 第一部分（604）具有期望的长度以形成半波k31谐振，而第二部分（606）具有用于不期望的非常低频带外k31谐振的谐振长度。 换能器元件（412）的厚度被设计用于k33半共振。 考虑到设计，换能器元件（412）可以操作并提供前视（514）和侧视（512）仰角孔。 还公开了在超声成像中使用所公开的超声换能器（412）的方法。
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公开(公告)号：US5566133A
公开(公告)日：1996-10-15
申请号：US564551
申请日：1995-11-29
摘要： An optical communication system for ultrasound imaging systems employs a light source and photodetector array in the imaging console. The light source and photodetector array are coupled to each other through an optical fiber passing through the probe. Information from the probe is communicated to the console by an optical modulator, situated in the optical path from source to detector. The ultrasound signals are converted into electrical signals by probe electronics, and these electrical signals serve to alter either the phase or amplitude of optical signals passing through the modulator. Since the light source and photodetectors reside in the imaging console, very little power is dissipated in the probe.
摘要翻译： 用于超声成像系统的光通信系统在成像控制台中采用光源和光电检测器阵列。 光源和光电检测器阵列通过穿过探针的光纤彼此耦合。 来自探头的信息通过位于从源到检测器的光路中的光学调制器传送到控制台。 超声信号通过探针电子元件转换为电信号，这些电信号用于改变通过调制器的光信号的相位或幅度。 由于光源和光电检测器位于成像控制台中，因此在探头中消耗的功率很小。
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10.发明授权
公开(公告)号：US5014712A
公开(公告)日：1991-05-14
申请号：US457134
申请日：1989-12-26
申请人： Matthew O'Donnell
发明人： Matthew O'Donnell
CPC分类号： G01S7/52046 , G01S15/8959 , G10K11/346
摘要： A method for imaging a sample with a beam of vibratory energy from an array of transducers excites the array with successive ones of a plurality M of coded excitation signal sets with each set occurring in a different one of successive excitation time intervals. Each different set has signals with a different code. An excitation beam, produced by the array, is focused into the sample at successively smaller distances, along a selected ray path from the array, during each successive excitation time interval. A reception beam is focused along the ray path at successively greater distances from a minimum distance away from the array during each successive one of a like plurality of reception time intervals, for receiving, during each reception time interval, return response signals reflected from the sample. The received signals are processed and all channels are coherently summed prior to cross-correlating the summed signals with reference signals derived from the coded signals of the set used for the associated excitation time interval, to recover a response signal substantially only from a volume of the sample at that distance associated with each time interval. Apparatus for implementing this method is disclosed.
摘要翻译： 用来自振子阵列的振动能量束对样本进行成像的方法用多个编码激励信号组中的连续激励信号组来激发阵列，每组编码激励信号组的每一组发生在不同的连续激发时间间隔中。 每个不同的组具有不同代码的信号。 在每个连续的激发时间间隔期间，由阵列产生的激发光束沿着沿着阵列的选定射线路径连续较小的距离聚焦到样本中。 在相似的多个接收时间间隔中的每个连续的一个期间，接收光束沿着光线路径聚焦在距离阵列的最小距离之间连续更大的距离处，用于在每个接收时间间隔期间接收从样本反射的返回响应信号 。 对所接收的信号进行处理，并且在将求和的信号与从用于相关联的激励时间间隔的集合的编码信号导出的参考信号相互相关之前，将所有信道相加相加，从而基本上仅从 在与每个时间间隔相关联的距离处的样本。 公开了实现该方法的装置。
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