-
11.发明授权
公开(公告)号：US5463593A
公开(公告)日：1995-10-31
申请号：US212759
申请日：1994-03-14
CPC分类号： G01H9/00
摘要： A schlieren imaging system provides quantitative images suitable for testing medical equipment. One embodiment includes precision optics which form an image of a volume of a medium through which an ultrasonic acoustic wave propagates. A spatial filter passes diffracted light but blocks other light. A camera forms an image of the medium from the diffracted light so that regions of the medium which diffract light have higher light intensity in the image. From image intensities, a processor determines acoustic pressures or intensities, typically as a value indicating an integral of the acoustic pressure or intensity along an optical path through the volume. Integrated pressure is determined from a look-up table which relates predicted light intensity to pressure values which cause the predicted light intensity. The system is calibrated by forming an image of a reference ultrasonic acoustic wave and determining a relation between the image intensities and predicted intensities. The system may include a timing circuit which periodically activates and deactivates a transducer and causes emission of synchronized pulses of light. The pulses of light are synchronized with a selected delay after activations of the transducer, so that an image is formed which shows an ultrasonic acoustic wave that has evolved during the delay.
摘要翻译： 施莱伦成像系统提供适合于测试医疗设备的定量图像。 一个实施例包括形成超声波传播的介质体积的图像的精密光学器件。 空间滤波器传递衍射光，但阻挡其他光。 相机从衍射光形成介质的图像，使得衍射光的介质的区域在图像中具有较高的光强度。 从图像强度，处理器确定声压或强度，通常作为指示沿着通过该体积的光路的声压或强度的积分的值。 从预测光强度与导致预测光强度的压力值相关联的查找表中确定集成压力。 通过形成参考超声波的图像并确定图像强度与预测强度之间的关系来校准系统。 该系统可以包括周期性地激活和去激活换能器并引起同步的光脉冲的定时电路。 光的脉冲在传感器激活之后与所选择的延迟同步，从而形成图像，其显示在延迟期间演变的超声波。
-
公开(公告)号：US08500619B2
公开(公告)日：2013-08-06
申请号：US11712869
申请日：2007-02-28
申请人： Peter S Brown , Claudio I. Zanelli
发明人： Peter S Brown , Claudio I. Zanelli
IPC分类号： A61N2/00
CPC分类号： A61B17/22012 , A61B34/73 , A61B2017/22042 , A61N2/002 , A61N2/02
摘要： A medical device incorporating magnetic material is introduced into the body of a patient. A time varying magnetic field is generated externally of the patient's body and which is of sufficient strength to magnetically induce motion in the device, thereby causing the medical device to vibrate within the patient's body. The frequency and the amplitude of the magnetic field oscillations can be continuously varied to control the vibrations induced in the medical device.
-
公开(公告)号：US06515657B1
公开(公告)日：2003-02-04
申请号：US09502722
申请日：2000-02-11
申请人： Claudio I. Zanelli
发明人： Claudio I. Zanelli
IPC分类号： G06T1500
CPC分类号： A61B8/0841 , A61B8/0833 , A61B8/461 , A61B8/467 , A61B90/36 , A61B2090/378
摘要： An ultrasound imaging system superimposes sectional views created from volumetric ultrasound data and the location data for an intervention device, such as a catheter. The position of an interventional medical device may be shown, in one or more views, relative to organs and tissues within a body as the interventional device is moved. The interventional device positional data is updated continuously and is superimposed on tissue images that may be updated less frequently, resulting in real-time or near real-time images of the interventional device relative to the tissues. The superimposed images permits medical personnel to perform procedures such as angiograms with minimal or no exposure of patients to x-rays and contrasting dye. The look and feel of the familiar fluoroscopy-like imaging may be maintained, or a three dimensional real-time, or near real-time projected image of the intervention medical device relative to an organ or tissue may be provided.
摘要翻译： 超声成像系统叠加由体积超声数据产生的剖视图和介入装置（例如导管）的位置数据。 介入医疗装置的位置可以在一个或多个视图中相对于介入装置移动而相对于身体内的器官和组织显示。 介入装置位置数据被连续地更新并叠加在组织图像上，可以更频繁地更新，导致介入装置相对于组织的实时或接近实时的图像。叠加的图像允许医务人员执行程序 例如血管造影，患者对x射线和对比染色的影响最小或没有。 可以保持熟悉的荧光透视像成像的外观和感觉，或者可以提供相对于器官或组织的介入医疗装置的三维实时或近实时投影图像。
-
14.发明授权Detection of imd contact and alignment based on changes in frequency response characteristics 有权基于频率响应特性的变化检测imd接触和对准公开(公告)号：US06436059B1
公开(公告)日：2002-08-20
申请号：US09660057
申请日：2000-09-12
申请人： Claudio I. Zanelli
发明人： Claudio I. Zanelli
IPC分类号： A61B5103
CPC分类号： A61B5/6885 , A61B5/103 , A61B5/6852 , A61B5/6886
摘要： A method and apparatus for remotely monitoring the location of an interventional medical device (IMD) which monitors changes in frequency response characteristics of a sensor. Embodiments of the present invention may use changes in the complex impedance properties of the sensor, at antiresonance, or changes in the resonant frequency of an LC circuit to indicate whether or not the IMD is in contact with a tissue surface. The present invention is adapted for use in conjunction with a wide variety of IMDs, and in a wide variety of medical procedures.
摘要翻译： 一种用于远程监测介入医疗装置（IMD）的位置的方法和装置，其监测传感器的频率响应特性的变化。 本发明的实施例可以使用传感器的复阻抗特性，反谐振变化或LC电路的谐振频率的变化，以指示IMD是否与组织表面接触。 本发明适用于各种各样的IMD以及各种各样的医疗程序。
-
15.发明申请Apparatus and method for improving blood flow in arterioles and capillaries 审中-公开用于改善小动脉和毛细血管中的血流的装置和方法公开(公告)号：US20120215137A1
公开(公告)日：2012-08-23
申请号：US13385236
申请日：2012-02-08
IPC分类号： A61N7/00
CPC分类号： A61N7/00 , A61N1/36014
摘要： Disclosed herein is an apparatus and method which are used to improve blood flow in small vessels such as arterioles and capillaries. Method embodiments of the present invention make use of very high frequency (typically 1 MHZ to 100 MHZ) electrical signals in combination with ultrasonic signals typically falling within the same frequency range, where the frequency of the electrical signals and the ultrasonic signals may be the same or different. The electrical signals and ultrasonic signals are applied to a patient simultaneously, typically at a single contact location which is proximate on the exterior of the body to the arterioles and capillaries where blood flow is impaired.
摘要翻译： 本文公开了一种用于改善小容器如小动脉和毛细血管中的血流的装置和方法。 本发明的方法实施例利用通常落在相同频率范围内的超高频信号（通常为1MHz至100MHz）的电信号，其中电信号和超声信号的频率可以相同 或不同。 电信号和超声波信号同时被施加到患者，通常在接近身体外部的单个接触位置到小动脉和血流受损的毛细血管。
-
16.发明授权Method and apparatus for quantifying an “integrated index” of a material medium 失效用于量化材料介质“积分指数”的方法和装置公开(公告)号：US06963399B2
公开(公告)日：2005-11-08
申请号：US10274330
申请日：2002-10-18
摘要： An apparatus for and method of calculating an integrated index of a transparent, translucent or opaque material for a desired wavelength range, the method comprising measuring a filtered value of the material as a function of wavelength within the desired wavelength range and calculating a protection index from the measured filtered value. The integrated index is used to quantify the ultraviolet, infra-red, erythemal or aphakic exposure properties of the material. In addition, the integrated index is used to quantify the photopic and/or scotopic response capabilities of the material. Further, the integrated index is used to quantify the differential or mean color indices of the material in comparison to the color spectrum or another material. Moreover, the integrated index is used to quantify the heat flux absorbed by the material.
摘要翻译： 一种用于计算所需波长范围的透明，半透明或不透明材料的积分指数的装置和方法，所述方法包括测量作为所需波长范围内的波长的函数的材料的滤波值，并计算保护指数 测量过滤的值。 综合指数用于量化材料的紫外线，红外线，红斑或无晶状体暴露性质。 此外，综合指数用于量化材料的明显和/或暗色反应能力。 此外，与色谱或其他材料相比，整体指数用于量化材料的差分或平均颜色指数。 此外，综合指数用于量化材料吸收的热通量。
-
17.发明授权Ultrasonic based detection of interventional medical device contact and alignment 有权介入医疗器械接触和对准的超声波检测公开(公告)号：US06546276B1
公开(公告)日：2003-04-08
申请号：US09660056
申请日：2000-09-12
申请人： Claudio I. Zanelli
发明人： Claudio I. Zanelli
IPC分类号： A61B5055
CPC分类号： A61B8/4254 , A61B18/24 , A61B2017/00106 , A61B2017/00247 , A61B2018/00392 , A61B2034/2063 , A61B2090/062 , A61B2090/065
摘要： A method and apparatus for remotely monitoring the location of an interventional medical device (IMD) using ultrasonic signals. Both the proximity and alignment of the IMD are calculated from ultrasound signals reflected off the tissue surface. The inclusion of an offset between the distal end of the IMD and the ultrasound transducer enables accurate position and alignment monitoring of when the IMD is in contact with, or very close to, the tissue surface. The timing of the reflected signal is used to measure proximity or contact. A comparison of the strength between multiple reflected signals is used to measure the alignment of the IMD in 3D space or perpendicularity to a given surface. The present invention may be used as a location indicator within a wide variety of IMDs, and in a wide variety of medical procedures.
摘要翻译： 一种用于使用超声信号远程监测介入医疗装置（IMD）的位置的方法和装置。 IMD的接近和对准均由从组织表面反射的超声信号计算。 在IMD的远端和超声换能器之间包括偏移器使得能够精确地定位和对准监测IMD何时与组织表面接触或非常接近组织表面。 反射信号的定时用于测量接近或接触。 使用多个反射信号之间的强度的比较来测量IMD在3D空间中的对准或垂直于给定表面。 本发明可以用作各种各样的IMD内的位置指示器，以及各种各样的医疗程序。
-
公开(公告)号：US6093883A
公开(公告)日：2000-07-25
申请号：US255287
申请日：1999-02-22
CPC分类号： G01H5/00
摘要： A method of treatment by ultrasound comprises providing a first, ultrasound field intensity-to-voltage transducer sized for insertion into the vicinity of a treatment site and a second ultrasound treatment transducer. The free field intensities created by the second transducer in response to various second transducer exciting signal levels are determined. The first transducer outputs in the free field in response to various second transducer exciting signal levels are also determined. The first transducer is inserted into the vicinity of the treatment site, and the second transducer is positioned to create an ultrasound field at the treatment site. The distance from the second transducer to the first transducer is determined. An exciting signal is applied to the second transducer. The output of the first transducer is determined. The level of the exciting signal applied to the second transducer, the determined distance and the first transducer output are employed to determine the attenuation coefficient of the tissues between the second transducer and the first transducer.
摘要翻译： 一种通过超声波治疗的方法包括提供尺寸适于插入治疗部位附近的第一超声场强度 - 电压传感器和第二超声治疗换能器。 确定响应于各种第二换能器激励信号电平由第二换能器产生的自由场强度。 还确定响应于各种第二换能器激励信号电平的自由场中的第一换能器输出。 将第一换能器插入治疗部位附近，并且将第二换能器定位成在治疗部位产生超声波场。 确定从第二换能器到第一换能器的距离。 激励信号被应用于第二传感器。 确定第一换能器的输出。 采用施加到第二换能器的激励信号的电平，确定的距离和第一换能器输出来确定第二换能器与第一换能器之间的组织的衰减系数。
-
公开(公告)号：US5515169A
公开(公告)日：1996-05-07
申请号：US136212
申请日：1993-10-13
CPC分类号： G01N21/255 , G01J3/26 , G01J9/0246 , G01J3/0294
摘要： A spectral wavelength discrimination system and method for using are provided which allows the wavelength of a beam of radiation to be accurately determined using compact inexpensive optics and electronics. The system is particularly useful for identifying the emission wavelength of a multi-component marker system which includes a plurality of components having different wavelength ranges. The system comprises a wavelength selective beamsplitter, termed a Linear Wavelength Filter, that directs predetermined fractions of the beam at each wavelength into each of two output beams. The intensities of these output beams are measured. The measurements and selected system parameters, including the beamsplitter spectral characteristics and the detector sensitivity characteristics are used in a special algorithm for performing Fourier based wavelength-dispersive analysis. The unique solution of the Fourier based analysis is the wavelength of the beam of radiation. The system employs various optical components and structures to achieve the desired spatial resolution and sensitivity. Multiple channel devices and other special configurations are also described.
摘要翻译： 提供了一种使用光谱波长鉴别系统和方法，其允许使用紧凑廉价的光学和电子学来精确地确定辐射束的波长。 该系统对于识别包括具有不同波长范围的多个分量的多分量标记系统的发射波长特别有用。 该系统包括称为线性波长滤波器的波长选择性分束器，其将每个波长处的波束的预定分数引导到两个输出波束中的每一个。 测量这些输出光束的强度。 用于执行基于傅立叶的波长色散分析的特殊算法中使用的测量和选定的系统参数，包括分光器光谱特性和检测器灵敏度特性。 傅里叶分析的独特解决方案是辐射束的波长。 该系统采用各种光学部件和结构来实现所需的空间分辨率和灵敏度。 还描述了多信道设备和其他特殊配置。
-
公开(公告)号：US4612809A
公开(公告)日：1986-09-23
申请号：US550914
申请日：1983-11-10
CPC分类号： G01N29/262 , G01N29/28 , G01S7/52063 , G10K11/004
摘要： A small, simple, yet accurate probe for producing a sector scan for ultrasonic medical diagnostic apparatus is provided by positioning a curved transducer array within the probe opposite a window, and filling the probe with a fluid having an acoustic velocity on the order of 0.5.times.10.sup.5 cm/sec. This combination is made possible by forming the window from a stiff polyionomer material whose acoustic velocity is closed to that of human skin, yet which is stiff enough even when thin to be essentially non-deformable in clinical use. Grating lobes of the ultrasonic beam, as well as the scatter produced within the probe by the high reflectivity of the window material, are absorbed by coating or lining the inner side walls of the probe with an open-celled polyether urethane foam having a cell diameter slightly smaller than one wavelength of the ultrasound in the probe fluid.
摘要翻译： 通过将弯曲的换能器阵列定位在与窗口相对的探针内，并用具有约0.5×10 5的声速的流体填充探针来提供用于产生用于超声波医疗诊断装置的扇形扫描的小型，简单且准确的探针 厘米/秒。 这种组合可以通过从其声速闭合到人体皮肤的刚性多聚离子体材料形成窗口而成为可能，然而即使在临时使用时基本上不可变形的情况下，它也是足够硬的。 超声波束的光栅以及通过窗材料的高反射率在探针内产生的散射通过用具有孔直径的开孔聚醚聚氨酯泡沫涂覆或衬里探针的内侧壁而被吸收 比探针流体中超声波的一个波长略小。
-
-
-
-
-
-
-
-
-
搜索结果
21 条记录 (耗时 0.021 秒)
