Active electrode, bio-impedance based, tissue discrimination system and methods of use
    1.
    发明授权
    Active electrode, bio-impedance based, tissue discrimination system and methods of use 失效
    活性电极,基于生物阻抗,组织鉴别系统和使用方法

    公开(公告)号:US07865236B2

    公开(公告)日:2011-01-04

    申请号:US11252568

    申请日:2005-10-19

    Abstract: Systems and methods for discriminating and locating tissues within a body involve applying a waveform signal to tissue between two electrodes and measuring the electrical characteristics of the signal transmitted through the tissue. At least one of the electrodes is constrained in area so that localized electrical characteristics of the tissue are measured. Such localized electrical characteristics are determined over a portion of a body of the subject by using an array of electrodes or electrodes that can be moved over the body. A controller may implement the process and perform calculations on the measured data to identify tissue types and locations within the measured area, and to present results in graphical form. Results may be combined with other tissue imaging technologies and with image-guided systems.

    Abstract translation: 用于区分和定位身体内的组织的系统和方法包括将波形信号施加到两个电极之间的组织并测量透过组织的信号的电特性。 电极中的至少一个被限制在区域中,使得测量组织的局部电特性。 通过使用能够在身体上移动的电极阵列或电极来确定这种局部电特性,使其在身体的一部分上被确定。 控制器可以实施该过程并且对所测量的数据执行计算以识别测量区域内的组织类型和位置,并以图形形式呈现结果。 结果可能与其他组织成像技术和图像引导系统相结合。

    Active Electrode, Bio-Impedance Based, Tissue Discrimination System and Methods of Use
    2.
    发明申请
    Active Electrode, Bio-Impedance Based, Tissue Discrimination System and Methods of Use 审中-公开
    活性电极,基于生物阻抗的组织鉴别系统和使用方法

    公开(公告)号:US20110082383A1

    公开(公告)日:2011-04-07

    申请号:US12962382

    申请日:2010-12-07

    CPC classification number: A61B5/4893 A61B5/0536 A61B5/4041 A61B5/4519

    Abstract: Systems and methods for discriminating and locating tissues within a body involve applying a waveform signal to tissue between two electrodes and measuring the electrical characteristics of the signal transmitted through the tissue. At least one of the electrodes is constrained in area so that localized electrical characteristics of the tissue are measured. Such localized electrical characteristics are determined over a portion of a body of the subject by using an array of electrodes or electrodes that can be moved over the body. A controller may implement the process and perform calculations on the measured data to identify tissue types and locations within the measured area, and to present results in graphical form. Results may be combined with other tissue imaging technologies and with image-guided systems.

    Abstract translation: 用于区分和定位身体内的组织的系统和方法包括将波形信号施加到两个电极之间的组织并测量透过组织的信号的电特性。 电极中的至少一个被限制在区域中,使得测量组织的局部电特性。 通过使用能够在身体上移动的电极阵列或电极来确定这种局部电特性,使其在身体的一部分上被确定。 控制器可以实施该过程并且对所测量的数据执行计算以识别测量区域内的组织类型和位置,并以图形形式呈现结果。 结果可能与其他组织成像技术和图像引导系统相结合。

    Method and system for the determination of object positions in a volume
    3.
    发明申请
    Method and system for the determination of object positions in a volume 失效
    用于确定卷中对象位置的方法和系统

    公开(公告)号:US20090324009A1

    公开(公告)日:2009-12-31

    申请号:US12163353

    申请日:2008-06-27

    CPC classification number: G06T7/13 G06T7/73 G06T2207/10021 G06T2207/30204

    Abstract: A method or a system embodiment determines positional information about a moveable object to which is affixed a pattern of stripes having reference lines. A method determines image lines of stripe images of each stripe within at least two video frames, uses the image lines to prescribe planes having lines of intersection, and determines a transformation mapping reference lines to lines of intersection. Position information about the object may be derived from the transformation. A system embodiment comprises a pattern of stripes in a known fixed relationship to an object, reference lines characterizing the stripes, two or more cameras at known locations, a digital computer adapted to receive video frames from the pixel arrays of the cameras, and a program stored in the computer's memory. The program performs some or all of the method. When there are two or more moveable objects, an embodiment may further determine the position information about a first object to be transformed to a local coordinate system fixed with respect to a second object.

    Abstract translation: 方法或系统实施例确定关于固定具有参考线的条纹图案的可移动对象的位置信息。 一种方法确定至少两个视频帧内的每个条带的条纹图像的图像行,使用图像线来规定具有交叉线的平面,并且确定到交叉线的变换映射参考线。 关于对象的位置信息可以从变换中导出。 系统实施例包括与对象的已知固定关系的条纹图案,表征条纹的参考线,已知位置处的两个或更多个相机,适于从相机的像素阵列接收视频帧的数字计算机,以及程序 存储在计算机的内存中。 程序执行部分或全部方法。 当存在两个或多个可移动对象时,实施例可以进一步确定关于要被变换到相对于第二对象固定的局部坐标系的第一对象的位置信息。

    Optical fiber probe for position measurement
    4.
    再颁专利
    Optical fiber probe for position measurement 有权
    用于位置测量的光纤探头

    公开(公告)号:USRE39102E1

    公开(公告)日:2006-05-23

    申请号:US09640794

    申请日:2000-08-18

    CPC classification number: G01B11/002 A61B90/36 G01S1/70 G01S5/16

    Abstract: Improved point source electromagnetic radiation emitters including a dispersing element that radiates electromagnetic radiation over a vary wide conical angle of approaching about 180°. This light dispersing element can be in any one or more of several illustrated forms such as a light diffusing spherical or hemispherical element, a planar diffusing plate, a tapered light guide, a piano-concave lens, a convex mirror, a light pipe with a large numerical aperture, or the like. The emitter of this invention may be fixed to an object and tracked in a 3-dimensional volume by a system using electro-optical position sensors in order to determine the spatial location of the emitters and therefore to determine, by geometry, the position or orientation of the object. The electromagnetic radiation generator is preferably disposed remote from the emitter and is electrically and magnetically isolated from the emitter. A common optical fiber provides transmission of the radiation from the generator to the emitter. The emitted radiation more nearly resembles point source of radiation and therefore enables more accurate determination of the location of the radiating element, and thereby more accurate determination of the position and orientation of the object on which the emitters reside. The preferred electromagnetic radiation generator is an LED, most preferably a laser diode.

    Abstract translation: 改进的点源电磁辐射发射器包括分散元件,其在接近约180°的变化的宽锥角上辐射电磁辐射。 该光分散元件可以是几种所示形式的任何一种或多种,​​例如光漫射球形或半球形元件,平面扩散板,锥形光导,钢琴凹透镜,凸面镜,具有 大数值孔径等。 本发明的发射器可以通过使用电光位置传感器的系统固定在物体上并以三维体积跟踪,以便确定发射器的空间位置,并且因此通过几何形状确定位置或取向 的对象。 电磁辐射发生器优选地远离发射器设置并且与发射极电气和磁性隔离。 普通光纤提供从发生器到发射器的辐射传输。 发射的辐射更接近于类似于辐射源点,因此能够更准确地确定辐射元件的位置,从而更准确地确定放射器所在的物体的位置和方向。 优选的电磁辐射发生器是LED,最优选的是激光二极管。

    Enhanced shape characterization device and method
    6.
    发明授权
    Enhanced shape characterization device and method 有权
    增强形状表征装置和方法

    公开(公告)号:US07623250B2

    公开(公告)日:2009-11-24

    申请号:US11050920

    申请日:2005-02-04

    CPC classification number: G01B11/245 G01S5/163

    Abstract: The shape and orientation of rigid or nearly rigid moveable bodies are determined using a shape characterization. Sensors capture a plurality of representations of different perspectives of the body that are analyzed to determine a bounding volume of the body. The shape of the body is determined from the bounding volume. The position of the body is determined using tracking devices that sense the position of the body. The bounding volume and position information are combined to define the shape and orientation in space of the body, and in particular the position of a point of interest on the body.

    Abstract translation: 使用形状表征确定刚性或几乎刚性的可移动体的形状和取向。 传感器捕获被分析的身体的不同透视图的多个表示以确定身体的界限体积。 身体的形状由界限体积确定。 使用感测身体位置的跟踪装置确定身体的位置。 结合体积和位置信息被组合以限定身体​​的空间中的形状和取向,特别是身体上的兴趣点的位置。

    Imaging system having interactive medical instruments and methods
    7.
    发明授权
    Imaging system having interactive medical instruments and methods 失效
    具有交互式医疗仪器和方法的成像系统

    公开(公告)号:US5617857A

    公开(公告)日:1997-04-08

    申请号:US471279

    申请日:1995-06-06

    Abstract: The invention provides an improved imaging system and method. The imaging system is of the type having a medical instrument including a source for emitting detectable energy and an instrument body having a work portion. The imaging system further includes detector for detecting the energy and a processor for determining the location of the medical instrument based on the detected energy. Such an imaging system is improved by providing a storage device on or in the medical instrument for storing initialization information, such as the location of the energy-emitting means relative to the instrument body. A transfer device is provided for transferring the initialization information from the storage device to the processor upon connection of the medical instrument to the processor. In this manner, the processor may then configure itself according to the attached instrument so that the system may track the location of the instrument body in three-dimensional space upon detection of the emitted energy.

    Abstract translation: 本发明提供了一种改进的成像系统和方法。 该成像系统具有包括用于发射可检测能量的源的医疗器械和具有工作部分的器械主体的类型。 成像系统还包括用于检测能量的检测器和用于基于检测到的能量来确定医疗器械的位置的处理器。 通过在医疗器械上或其中提供存储装置来存储初始化信息(诸如能量发射装置相对于仪器主体的位置)来改进这种成像系统。 提供传送设备,用于在将医疗仪器连接到处理器时将初始化信息从存储设备传送到处理器。 以这种方式,处理器然后可以根据所附接的仪器来配置自身,使得系统可以在检测到发射的能量时跟踪仪器主体在三维空间中的位置。

    Method and apparatus for three-dimensional non-contact shape sensing
    8.
    发明授权
    Method and apparatus for three-dimensional non-contact shape sensing 失效
    三维非接触形状感应的方法和装置

    公开(公告)号:US5198877A

    公开(公告)日:1993-03-30

    申请号:US597505

    申请日:1990-10-15

    Abstract: This method and apparatus optically samples numerous points on the surface of an object to remotely sense its shape utilizing two stages. The first stage employs a moveable non-contact scanner, which in normal operation sweeps a narrow beam of light across the object, illuminating a single point of the object at any given instant in time. The location of that point relative to the scanner is sensed by multiple linear photodetector arrays behind lenses in the scanner. These sense the location by measuring the relative angular parallax of the point. The second stage employs multiple fixed but widely separated photoelectronic sensors, similar to those in the scanner, to detect the locations of several light sources affixed to the scanner, thereby defining the absolute spatial positions and orientations of the scanner. Individual light sources are distinguished by time-multiplexing their on-off states. A coordinate computer calculates the absolute spatial positions where the scanner light beam is incident on the object at a given instant and continuously on a real time basis to generate a computer model of the object.

    Abstract translation: 该方法和装置利用两个阶段对物体表面上的多个点进行光学取样以远程感测其形状。 第一阶段采用可移动的非接触式扫描器,其在正常操作中扫过窄的光束穿过物体,在任何给定的时刻照射物体的单个点。 相对于扫描仪的该点的位置由扫描器中的透镜后面的多个线性光电检测器阵列感测。 这些通过测量点的相对角视差来感测位置。 第二阶段采用与扫描仪中类似的多个固定但广泛分离的光电传感器来检测固定在扫描器上的几个光源的位置,从而限定扫描仪的绝对空间位置和取向。 通过对其开关状态进行时间复用来区分各个光源。 坐标计算机计算在给定时刻扫描光束入射到物体上的绝对空间位置,并且实时地连续地生成物体的计算机模型。

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