专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US5490513A Multiple patient breast scanning on a magnetic resonance imaging apparatus 失效
标题翻译：在磁共振成像装置上进行多个患者乳房扫描
公开(公告)号：US5490513A
公开(公告)日：1996-02-13
申请号：US131124
申请日：1993-10-04
申请人： Raymond V. Damadian , Jan Votruba
发明人： Raymond V. Damadian , Jan Votruba
IPC分类号： A61B5/055 , G01R33/28 , G01R33/34 , G01R33/58
CPC分类号： G01R33/381 , A61B5/0555 , G01R33/34046 , G01R33/341 , G01R33/58
摘要： Magnetic resonance imaging systems typically have a single patient handling system which allows the sequential scanning of individual patients. Such apparatus limit patient throughput and consequently the utility of magnetic resonance imaging systems. The present invention includes apparatus and methods to enhance patient throughput of a magnetic resonance imaging system, particularly as related to imaging the breast region of patients. Two distinct components of a magnetic resonance imaging procedure are defined: the patient handling time and the scan protocol time, and these time components are multiplexed to enhance patient throughput. This is achieved by addition of patient handling systems at additional apertures as exist on the primary field magnet and which provide access to the imaging volume. It is thus possible, for example, to have the patient handling time component of one patient overlap with the scan protocol time component of a second patient. Additionally, the present invention includes radio frequency antennas and positioning devices designed for use in scanning the breast region of patients.
摘要翻译：磁共振成像系统通常具有单个患者处理系统，其允许单个患者的顺序扫描。这种装置限制了患者吞吐量，从而限制了磁共振成像系统的效用。本发明包括用于增强磁共振成像系统的患者通过量的装置和方法，特别是与患者的乳房区域的成像有关。定义了磁共振成像过程的两个不同的组成部分：患者处理时间和扫描协议时间，并且这些时间分量被复用以增强患者的吞吐量。这通过在主场磁体上存在的另外的孔中添加患者处理系统并且提供对成像体积的访问来实现。因此，例如可以使一名患者的患者处理时间分量与第二患者的扫描协议时间分量重叠。另外，本发明包括设计用于扫描患者乳房区域的射频天线和定位装置。

2. 发明授权

US5899859A Multipositional MRI for kinematic studies of movable joints 失效
标题翻译：可动关节运动学研究的多位置MRI
公开(公告)号：US5899859A
公开(公告)日：1999-05-04
申请号：US468241
申请日：1995-06-06
申请人： Jan Votruba , Rajendra Shenoy , Raymond V. Damadian
发明人： Jan Votruba , Rajendra Shenoy , Raymond V. Damadian
IPC分类号： A61B5/055 , A61B5/11 , G01D7/00 , G01R33/28
CPC分类号： A61B5/055 , A61B5/0555 , A61B5/1121 , A61B6/0485 , G01D7/002 , G01R33/56391 , A61B5/4528
摘要： Methods and apparatus for kinematic studies of the movable joints of the body using magnetic resonance imaging. The apparatus controls the position of movable joints at a multiplicity of predetermined positions, enabling the controlled movement of the joints to each of the predetermined positions. It also includes a device which automatically sequences the movement of a movable joint to each position among the multiplicity of predetermined positions, and the acquisition of magnetic resonance imaging data at each of these positions. These features enhance the clinical utility of kinematic studies of movable joint functionality by magnetic resonance imaging.
摘要翻译：使用磁共振成像对身体运动关节的运动学研究的方法和装置。该装置在多个预定位置处控制可动接头的位置，从而能够将接头控制移动到每个预定位置。它还包括一个将多个预定位置中的每个位置的可移动关节的运动自动排列的装置，以及在这些位置的每个位置获取磁共振成像数据。这些特征通过磁共振成像增强了可移动关节功能的运动学研究的临床应用。

3. 发明授权

US06229310B1 Magnetic resonance imaging excitation and reception methods and apparatus 有权
标题翻译：磁共振成像激发和接收方法及装置
公开(公告)号：US06229310B1
公开(公告)日：2001-05-08
申请号：US09288722
申请日：1999-04-09
申请人： Charles Green , Jan Votruba , Gregory Eydelman , Raymond V. Damadian
发明人： Charles Green , Jan Votruba , Gregory Eydelman , Raymond V. Damadian
IPC分类号： G01V300
CPC分类号： G01R33/3642 , G01R33/34061 , G01R33/34069 , G01R33/341 , G01R33/3657
摘要： In magnetic resonance imaging (“MRI”), RF power is applied to a region of interest within the patient by a local antenna disposed adjacent the region of interest. The local antenna is excited by RF signals sent through free space from a principal antenna mounted to the primary field magnet of the MRI system. The principal antenna includes one or more loops mounted so that the plane of the loop is transverse to the pole pieces of the magnet frame and so that the plane of the loop is transverse to adjacent metallic portions of the frame. The loops are aligned with openings in the frame so that a patient is advanced into a frame through the loop. The loops do not substantially obstruct axis to the subject receiving space.
摘要翻译：在磁共振成像（“MRI”）中，通过邻近感兴趣区域布置的局部天线将RF功率施加到患者内的感兴趣区域。本地天线通过从安装到MRI系统的主场磁体的主天线通过自由空间发送的RF信号激发。主天线包括一个或多个环，其安装成使得环的平面横向于磁体框架的极片，并且使得环的平面横向于框架的相邻金属部分。环路与框架中的开口对准，使患者通过环路进入框架。环路基本上不妨碍对象接收空间的轴线。

4. 发明授权

US5772595A Multipositional MRI for kinematic studies of movable joints 失效
公开(公告)号：US5772595A
公开(公告)日：1998-06-30
申请号：US764060
申请日：1996-12-12
申请人： Jan Votruba , Rajendra Shenoy , Raymond V. Damadian
发明人： Jan Votruba , Rajendra Shenoy , Raymond V. Damadian
IPC分类号： A61B5/055 , A61B5/11 , G01D7/00 , G01R33/28
CPC分类号： A61B5/055 , A61B5/0555 , A61B5/1121 , A61B6/0485 , G01D7/002 , G01R33/56391 , A61B5/4528
摘要： Methods and apparatus for kinematic studies of the movable joints of the body using magnetic resonance imaging. The apparatus controls the position of movable joints at a multiplicity of predetermined positions, enabling the controlled movement of the joints to each of the predetermined positions. It also includes a device which automatically sequences the movement of a movable joint to each position among the multiplicity of predetermined positions, and the acquisition of magnetic resonance imaging data at each of these positions. These features enhance the clinical utility of kinematic studies of movable joint functionality by magnetic resonance imaging.

5. 发明授权

US6028429A Composite MRI antenna with reduced stray capacitance 失效
标题翻译：具有降低的杂散电容的复合MRI天线
公开(公告)号：US6028429A
公开(公告)日：2000-02-22
申请号：US895674
申请日：1997-07-17
申请人： Charles Green , Jan Votruba , Gregory Eydelman , Raymond V. Damadian
发明人： Charles Green , Jan Votruba , Gregory Eydelman , Raymond V. Damadian
IPC分类号： G01R33/34 , G01R33/36 , G01V3/00
CPC分类号： G01R33/3642 , G01R33/34061
摘要： An antenna system for a magnetic resonance imaging apparatus has an active coil connected between a transmitter or receiver and ground and also has an isolated loop coil which is not conductively connected to ground. The isolated loop coil preferably overlies the electrically conductive pole surface of the field magnet. The isolated loop coil is inductively coupled to the active coil. The assembly has relatively low parasitic capacitance to ground and hence can be tuned to the resonant frequencies required for high field strength imaging.
摘要翻译：用于磁共振成像装置的天线系统具有连接在发射器或接收器和地之间的有源线圈，并且还具有不与地面导电连接的隔离环形线圈。绝缘环线圈优选地覆盖在场磁体的导电极表面上。隔离环路线圈感应耦合到有源线圈。该组件具有相对较低的对地的寄生电容，因此可以调谐到高场强成像所需的谐振频率。

6. 发明授权

US5810006A Multipositional MRI for kinematic studies of movable joints 失效
公开(公告)号：US5810006A
公开(公告)日：1998-09-22
申请号：US468206
申请日：1995-06-06
申请人： Jan Votruba , Rajendra Shenoy , Raymond V. Damadian
发明人： Jan Votruba , Rajendra Shenoy , Raymond V. Damadian
IPC分类号： A61B5/055 , A61B5/11 , G01D7/00 , G01R33/28
CPC分类号： A61B5/055 , A61B5/0555 , A61B5/1121 , A61B6/0485 , G01D7/002 , G01R33/56391 , A61B5/4528
摘要： Methods and apparatus for kinematic studies of the movable joints of the body using magnetic resonance imaging. The apparatus controls the position of movable joints at a multiplicity of predetermined positions, enabling the controlled movement of the joints to each of the predetermined positions. It also includes a device which automatically sequences the movement of a movable joint to each position among the multiplicity of predetermined positions, and the acquisition of magnetic resonance imaging data at each of these positions. These features enhance the clinical utility of kinematic studies of movable joint functionality by magnetic resonance imaging.

7. 发明授权

US5724970A Multipositional MRI for kinematic studies of movable joints 失效
公开(公告)号：US5724970A
公开(公告)日：1998-03-10
申请号：US43505
申请日：1993-04-06
申请人： Jan Votruba , Rajendra Shenoy , Raymond V. Damadian
发明人： Jan Votruba , Rajendra Shenoy , Raymond V. Damadian
IPC分类号： A61B5/055 , A61B5/11 , G01D7/00 , G01R33/28
CPC分类号： A61B5/055 , A61B5/0555 , A61B5/1121 , A61B6/0485 , G01D7/002 , G01R33/56391 , A61B5/4528
摘要： Methods and apparatus for kinematic studies of the movable joints of the body using magnetic resonance imaging. The apparatus controls the position of movable joints at a multiplicity of predetermined positions, enabling the controlled movement of the joints to each of the predetermined positions. It also includes a device which automatically sequences the movement of a movable joint to each position among the multiplicity of predetermined positions, and the acquisition of magnetic resonance imaging data at each of these positions. These features enhance the clinical utility of kinematic studies of movable joint functionality by magnetic resonance imaging.

8. 发明授权

US5664569A Breast positioning device for use during magnetic resonance imaging 失效
标题翻译：在磁共振成像期间使用的乳房定位装置
公开(公告)号：US5664569A
公开(公告)日：1997-09-09
申请号：US456703
申请日：1995-06-01
申请人： Raymond V. Damadian , Jan Votruba
发明人： Raymond V. Damadian , Jan Votruba
IPC分类号： A61B5/055 , G01R33/28 , G01R33/34 , G01R33/58
CPC分类号： G01R33/381 , A61B5/0555 , G01R33/34046 , G01R33/341 , G01R33/58
摘要： An apparatus for use during Magnetic Resonance imaging of a patient's breast region including a positioning device and an elongated radio frequency conductor. The breast positioning device contains a permanent cavity. The elongated conductor has a portion disposed within the cavity and a second portion extending around the torso region of the patient.
摘要翻译：一种在包括定位装置和细长射频导体的患者胸部区域的磁共振成像期间使用的装置。乳房定位装置包含永久性腔。细长导体具有设置在空腔内的部分和围绕患者的躯干区域延伸的第二部分。

9. 发明授权

US08934990B1 Localized RF heating 有权
标题翻译：本地化RF加热
公开(公告)号：US08934990B1
公开(公告)日：2015-01-13
申请号：US13073271
申请日：2011-03-28
申请人： Raymond V. Damadian , Lawrence A. Minkoff , Jan Votruba
发明人： Raymond V. Damadian , Lawrence A. Minkoff , Jan Votruba
IPC分类号： A61F7/00 , A61N5/00
CPC分类号： A61N1/403
摘要： An apparatus is provided for generating focused radio frequency. The apparatus may include multiple coils, and the multiple coils can be actuated so as to generate focused energy at a focal location within the body of a subject such as a human or non-human animal while minimizing heating at the skin of the subject. A first central coil and a second central coil that are placed adjacent to each other. The apparatus also comprises a first focusing coil and a second focusing coil. The first central coil and the second central coil are placed between the first focusing coil and the second focusing coil. The first focusing coil and the second focusing coil generate a radio frequency field that is 180 degrees out of phase from a radio frequency field generated by the first central coil and the second central coil.
摘要翻译：提供了一种用于产生聚焦射频的装置。该装置可以包括多个线圈，并且可以致动多个线圈，以便在诸如人或非人类动物的对象的身体内的焦点位置处产生聚焦能量，同时使受试者皮肤处的加热最小化。第一中心线圈和第二中心线圈彼此相邻放置。该装置还包括第一聚焦线圈和第二聚焦线圈。第一中心线圈和第二中心线圈被放置在第一聚焦线圈和第二聚焦线圈之间。第一聚焦线圈和第二聚焦线圈产生与由第一中心线圈和第二中心线圈产生的射频场相差180度的射频场。

10. 发明授权

US5939883A Magnetic resonance imaging excitation and reception methods and apparatus 失效
标题翻译：磁共振成像激发和接收方法及装置
公开(公告)号：US5939883A
公开(公告)日：1999-08-17
申请号：US683623
申请日：1996-07-17
申请人： Charles Green , Jan Votruba , Gregory Eydelman , Raymond V. Damadian
发明人： Charles Green , Jan Votruba , Gregory Eydelman , Raymond V. Damadian
IPC分类号： G01R33/34 , G01R33/36 , G01V3/00
CPC分类号： G01R33/3642 , G01R33/34061 , G01R33/34069 , G01R33/341 , G01R33/3657
摘要： In magnetic resonance imaging ("MRI"), RF power is applied to a region of interest within the patient by a local antenna disposed adjacent the region of interest. The local antenna is excited by RF signals sent through free space from a principal antenna mounted to the primary field magnet of the MRI system. The principal antenna includes one or more loops mounted so that the plane of the loop is transverse to the pole pieces of the magnet frame and so that the plane of the loop is transverse to adjacent metallic portions of the frame. The loops are aligned with openings in the frame so that a patient is advanced into a frame through the loop. The loops do not substantially obstruct axis to the subject receiving space.
摘要翻译：在磁共振成像（“MRI”）中，通过邻近感兴趣区域布置的局部天线将RF功率施加到患者内的感兴趣区域。本地天线通过从安装到MRI系统的主场磁体的主天线通过自由空间发送的RF信号激发。主天线包括一个或多个环，其安装成使得环的平面横向于磁体框架的极片，并且使得环的平面横向于框架的相邻金属部分。环路与框架中的开口对准，使患者通过环路进入框架。环路基本上不妨碍对象接收空间的轴线。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式