Magnetic resonance imaging with nested gradient pulses

    公开(公告)号:US07047062B2

    公开(公告)日:2006-05-16

    申请号:US10063826

    申请日:2002-05-16

    IPC分类号: A61B5/05

    CPC分类号: G01R33/561

    摘要: Disclosed herein is a system and method for decreasing gradient field pulse sequence duration and reducing peripheral nerve stimulation with known gradient pulse areas for a magnetic resonance imaging system. The method comprising: receiving a first desired area corresponding to a first pulse; obtaining a second desired area corresponding to a second pulse; selecting the first pulse as a nested pulse if the first desired area is smaller than the second desired area, and establishing the second pulse as a nesting pulse, otherwise selecting the second pulse as the nested pulse and establishing the first pulse as the nesting pulse. The method also includes: determining an amplitude and pulse duration for the nested pulse and ascertaining an amplitude and pulse duration for the nesting pulse. Finally, the method includes arranging a plurality of gradient field pulse sequences to include the nested pulse and the nesting pulse.

    Beveled insert for facilitating coupling pipes
    2.
    发明申请
    Beveled insert for facilitating coupling pipes 审中-公开
    锥形插入件,便于连接管道

    公开(公告)号:US20080012298A1

    公开(公告)日:2008-01-17

    申请号:US11593904

    申请日:2006-11-07

    申请人: Steven Wolff

    发明人: Steven Wolff

    IPC分类号: F16L49/00

    CPC分类号: F16L21/03

    摘要: An annular beveled insert for enhancing the insertion of a plain end of a pipe into a mating belled end of a pipe, the insert including an annular main body portion having a substantially flat surface and a beveled opposed surface. The annular main body portion has inner and outer diameters approximately equal to inner and outer diameters, respectively, of the plain end of the pipe. An outwardly directed flange extends from the annular main body portion around a periphery and has an outer diameter greater than the outer diameter of the plain end of the pipe. The flange is sufficiently flexible so that it bends into an angle of approximately ninety degrees with the flat surface of the annular main body portion and aids the main body portion in masking the plain end of the pipe as it passes through the annular gasket.

    摘要翻译: 一种环形斜面插入件,用于增强管道的平坦端部插入管子的配合开口端部,所述插入件包括具有基本平坦的表面和斜面的相对表面的环形主体部分。 环形主体部的内径和外径分别大致等于管的平端的内径和外径。 向外的凸缘从环形主体部分周围延伸,并且具有大于管的平端的外径的外径。 该凸缘具有足够的柔性,使得其与环形主体部分的平坦表面弯曲成大约九十度的角度,并且当主管部分穿过环形垫圈时帮助主体部分掩蔽管道的平坦端部。

    Apparatus and method for improving diagnoses

    公开(公告)号:US06577887B2

    公开(公告)日:2003-06-10

    申请号:US09804938

    申请日:2001-03-13

    IPC分类号: A61B505

    CPC分类号: A61B17/1355 A61B5/0555

    摘要: The apparatus and method alters the intravenous delivery of pharmaceuticals to enhance imaging of the vasculature of an animal. The apparatus includes a pressure-inducing component that is sized to attach circumferentially to an extremity of an animal thereby impeding arterial blood flow causing said pharmaceuticals to remain at selected levels within the vasculature.

    Body worn sensor and device harness
    4.
    发明申请
    Body worn sensor and device harness 审中-公开
    身体磨损传感器和装置线束

    公开(公告)号:US20060069320A1

    公开(公告)日:2006-03-30

    申请号:US10937539

    申请日:2004-09-08

    IPC分类号: A61B5/0402

    CPC分类号: A61B5/6831 A61B5/04085

    摘要: A body worn harness supporting biosensors and devices in a form fitting structure for medical long-term ambulatory operation. The supported devices provide processing, storage, and communicating of the biosensor data captured. Integrated body motion generators generate power. In addition rapid acting zero insertion force mechanical and electrical connectors are provided for the interconnection of the biosensors, devices, and power sources.

    摘要翻译: 身体佩戴的线束支持生物传感器和装置,用于医疗长期行走手术的形式配合结构。 支持的设备提供所捕获的生物传感器数据的处理,存储和通信。 集体运动发生器产生电力。 此外,提供快速动作的零插入力机械和电连接器用于生物传感器,设备和电源的互连。

    Body worn latchable wireless medical computing platform
    5.
    发明申请
    Body worn latchable wireless medical computing platform 审中-公开
    身体破损的无线医疗计算平台

    公开(公告)号:US20050090754A1

    公开(公告)日:2005-04-28

    申请号:US10937535

    申请日:2004-09-08

    摘要: A non-invasive body worn computing platform is capable of long term unattended operation to capture, analyze, store, biosensor data and communicate health and system events, ECG waves and other biomedical data from the patient recorded, produced, or analyzed. The non-invasive body worn computing platform operates as a node within a wireless distributed collaborative network. The body worn computing platform has a latch-able mechanical and electrical interface for rapid swapping of the device and power source to and from biosensors, body harness, and power sources.

    摘要翻译: 非侵入性身体磨损的计算平台能够进行长期的无人值守操作,从记录,生产或分析的患者中捕获,分析,存储,生物传感器数据和传达健康和系统事件,ECG波和其他生物医学数据。 非侵入性身体磨损计算平台作为无线分布式协作网络内的节点运行。 身体磨损的计算平台具有可闩锁的机械和电气接口,用于将设备和电源快速交换到生物传感器,身体线束和电源。

    MAGNETIC RESONANCE IMAGING WITH IMPROVED DIFFERENTATION OF INFARCTED TISSUE
    6.
    发明申请
    MAGNETIC RESONANCE IMAGING WITH IMPROVED DIFFERENTATION OF INFARCTED TISSUE 审中-公开
    磁共振成像具有改善的感染组织的不同

    公开(公告)号:US20050245809A1

    公开(公告)日:2005-11-03

    申请号:US10709365

    申请日:2004-04-29

    IPC分类号: A61B5/05 G01R33/28 G01R33/561

    CPC分类号: G01R33/561 G01R33/281

    摘要: A method of generating a magnetic resonance image is provided, comprising subjecting a subject to a magnetic field. The subject comprised of a first tissue a second tissue and a third tissue. The method generates a first pulse sequence at a first TI time and generates a first image after the first pulse sequence. The first image has a first image first tissue magnitude, a first image second tissue magnitude, and a first image third tissue magnitude. The method then generates a second pulse sequence at a second TI time and generates a second image after the second pulse sequence. The second image has a second image first tissue magnitude, a second image second tissue magnitude, and a second image third tissue magnitude. Finally, the method generates a resultant image by combining the first image and the second image. The first image first tissue magnitude and the second image first tissue magnitude combine to form a positive resultant first tissue magnitude. The first image third tissue magnitude and the second image third tissue magnitude combine to form a negative resultant image third tissue magnitude.

    摘要翻译: 提供了一种产生磁共振图像的方法,包括使受试者受到磁场的影响。 受试者由第一组织组成,第二组织和第三组织组成。 该方法在第一TI时间产生第一脉冲序列,并在第一脉冲序列之后产生第一图像。 第一图像具有第一图像第一组织幅度,第一图像第二组织幅度和第一图像第三组织幅度。 然后,该方法在第二TI时间产生第二脉冲序列,并在第二脉冲序列之后产生第二图像。 第二图像具有第二图像第一组织量值,第二图像第二组织量值和第二图像第三组织量值。 最后,该方法通过组合第一图像和第二图像来生成合成图像。 第一图像第一组织幅度和第二图像第一组织幅度组合形成正的合成第一组织幅度。 第一图像第三组织幅度和第二图像第三组织幅度组合形成负的合成图像第三组织幅度。

    A/C pipe containment cap and method
    7.
    发明申请
    A/C pipe containment cap and method 审中-公开
    A / C管道安全帽和方法

    公开(公告)号:US20050212295A1

    公开(公告)日:2005-09-29

    申请号:US11085765

    申请日:2005-03-21

    申请人: Steven Wolff

    发明人: Steven Wolff

    CPC分类号: F16L55/115 F16L55/1608

    摘要: A repaired pipeline includes an A/C pipe segment having an end, a repair segment having an end and a repair coupling coupling the A/C pipe segment to the repair segment. An A/C pipe containment cap includes an annular end having a width slightly larger than a thickness of the A/C pipe segment, an outer diameter side wall extending perpendicularly from an outer edge of the annular end, and an inner diameter side wall extending perpendicularly from an inner edge of the annular end. The containment cap is mounted on the end of the A/C pipe with the inner diameter side wall and the outer diameter sidewall extending longitudinally along an inside surface and an outside surface of the A/C pipe, respectively, and the annular end engaging the end of the A/C pipe.

    摘要翻译: 修理的管道包括具有端部的A / C管段,具有端部的修复段和将A / C管段连接到修复段的修复联接件。 A / C管安全帽包括具有稍大于A / C管段厚度的宽度的环形端,从环形端的外边缘垂直延伸的外径侧壁和延伸 垂直于环形端的内边缘。 安全帽安装在A / C管的端部,内径侧壁和外径侧壁分别沿着A / C管的内表面和外表面纵向延伸,并且环形端与 A / C管道的末端。

    Cap for dispensing viscous liquids
    8.
    发明授权
    Cap for dispensing viscous liquids 失效
    用于分配粘稠液体的盖

    公开(公告)号:US06412664B1

    公开(公告)日:2002-07-02

    申请号:US09640455

    申请日:2000-08-17

    IPC分类号: B65D3700

    CPC分类号: B65D47/06

    摘要: A cap for use in dispensing viscous liquids from containers without the accompaniment of lower viscosity liquid present in the container. The cap has a top portion with an outside surface and an inside surface and an elongated conduit formed at a pre-determined angle. The elongated conduit has an outlet and an inlet. The outlet is situated either eccentrically or concentrically on the outside surface of the top portion such that at least one point on the circumference of the top portion is greater than 10 millimeters from the edge of the inlet.

    摘要翻译: 用于从容器中分配粘稠液体而不伴随容器中存在较低粘度液体的帽子。 盖具有顶部,其具有外表面和内表面以及以预定角度形成的细长导管。 细长导管具有出口和入口。 出口偏心或同心地位于顶部的外表面上,使得顶部的圆周上的至少一个点距入口边缘大于10毫米。

    Modular apparatus for magnetic resonance imaging
    9.
    发明授权
    Modular apparatus for magnetic resonance imaging 有权
    用于磁共振成像的模块化装置

    公开(公告)号:US08487620B2

    公开(公告)日:2013-07-16

    申请号:US12816879

    申请日:2010-06-16

    IPC分类号: G01V3/00

    摘要: The present invention discloses a modular MRI imaging system. The imaging system includes MRI radio-frequency antenna arrays separate from the patient support structure. The antenna arrays are affixed to a thin, flexible film such that they may be located next to the anatomical region of interest. In addition, multiple antenna arrays may be configured in various planar or three-dimensional arrangements to optimize the FOV and SNR. Separate patient support structures are provided that enhance ergonomics and patient stabilization. By removing the antenna from the housing, the support structures may be designed without the constraints of supporting the antenna or the associated electronics. The MRI imaging system further employs a preamplifier module. The preamplifier module houses the preamplifier and much of the other associated circuitry for each of the antennae. The preamplifier module operates to combine the signals from the antenna arrays and pass the signals to the MRI system.

    摘要翻译: 本发明公开了一种模块化MRI成像系统。 成像系统包括与患者支撑结构分开的MRI射频天线阵列。 天线阵列被固定到薄的柔性膜,使得它们可以位于感兴趣的解剖区域旁边。 此外,多个天线阵列可以被配置成各种平面或三维布置以优化FOV和SNR。 提供单独的患者支撑结构,其增强人体工程学和患者稳定性。 通过从壳体移除天线,可以设计支撑结构而不受支撑天线或相关电子装置的限制。 MRI成像系统还采用前置放大器模块。 前置放大器模块容纳前置放大器和大部分用于每个天线的其它相关电路。 前置放大器模块用于组合来自天线阵列的信号,并将信号传递到MRI系统。

    Modular Apparatus for Magnetic Resonance Imaging
    10.
    发明申请
    Modular Apparatus for Magnetic Resonance Imaging 有权
    用于磁共振成像的模块化装置

    公开(公告)号:US20100315085A1

    公开(公告)日:2010-12-16

    申请号:US12816879

    申请日:2010-06-16

    IPC分类号: G01R33/48

    摘要: The present invention discloses a modular MRI imaging system. The imaging system includes MRI radio-frequency antenna arrays separate from the patient support structure. The antenna arrays are affixed to a thin, flexible film such that they may be located next to the anatomical region of interest. In addition, multiple antenna arrays may be configured in various planar or three-dimensional arrangements to optimize the FOV and SNR. Separate patient support structures are provided that enhance ergonomics and patient stabilization. By removing the antenna from the housing, the support structures may be designed without the constraints of supporting the antenna or the associated electronics. The MRI imaging system further employs a preamplifier module. The preamplifier module houses the preamplifier and much of the other associated circuitry for each of the antennae. The preamplifier module operates to combine the signals from the antenna arrays and pass the signals to the MRI system.

    摘要翻译: 本发明公开了一种模块化MRI成像系统。 成像系统包括与患者支撑结构分开的MRI射频天线阵列。 天线阵列被固定到薄的柔性膜,使得它们可以位于感兴趣的解剖区域旁边。 此外,多个天线阵列可以被配置成各种平面或三维布置以优化FOV和SNR。 提供单独的患者支撑结构,其增强人体工程学和患者稳定性。 通过从壳体移除天线,可以设计支撑结构而不受支撑天线或相关电子装置的限制。 MRI成像系统还采用前置放大器模块。 前置放大器模块容纳前置放大器和大部分用于每个天线的其它相关电路。 前置放大器模块用于组合来自天线阵列的信号,并将信号传递到MRI系统。