公开(公告)号：US09086492B2

公开(公告)日：2015-07-21

申请号：US11753067

申请日：2007-05-24

Applicant: Nan Zhang ,  Matthias J. Schmand ,  Niraj K. Doshi ,  Michael D. Loope

Inventor： Nan Zhang ,  Matthias J. Schmand ,  Niraj K. Doshi ,  Michael D. Loope

IPC: G01T1/00 ,  G01T1/164

CPC classification number: G01T1/1642 ,  G01T1/208

Abstract: A scintillation detector including one or more photomultiplier tubes, a scintillation block optically attached to the photomultiplier tubes, and a DC-coupled bleeder circuit combining outputs of dynodes of the photomultipliers to provide a DC-coupled dynode output together with a DC-coupled anode output of the photomultiplier tubes. The DC-coupled bleeder circuit includes a RF transformer. A positive high voltage supply also can be used together with a DC-coupled bleeder circuit for the anode outputs.

Abstract translation: 闪烁检测器，包括一个或多个光电倍增管，与光电倍增管光学连接的闪烁块，以及组合光电倍增管的倍增电极输出的DC耦合泄放电路，以提供DC耦合的倍增电极输出以及直流耦合的阳极输出 的光电倍增管。 直流耦合放电电路包括RF变压器。 阳极高压电源也可以与阳极输出的直流耦合泄放电路一起使用。

公开(公告)号：US20130062525A1

公开(公告)日：2013-03-14

申请号：US13229797

申请日：2011-09-12

Applicant: James Frank Caruba ,  Niraj K. Doshi ,  John W. Young ,  Nan Zhang

Inventor： James Frank Caruba ,  Niraj K. Doshi ,  John W. Young ,  Nan Zhang

IPC: G01T1/20 ,  G01T1/164

CPC classification number: G01T1/1648

Abstract: Using standard or “off the shelf” cable to interconnect between the PET block detector and the detector circuit may save substantial costs given the number of PMTs in a PET system. Given space constraints, simple maintenance with reduced risk of disturbing cabling is desired, making ongoing use of standard cabling without adding further cabling desired. To implement digital gain control, a further communication is provided between the PET detector block and the detector circuit. Since the standard cable may not have additional wires for such communications and to reduce timing degradation, the PMT signals are combined, such as generating position and energy signals at the PET detector block. The four PMT signals are reduced to three signals without reduction in function, allowing a fourth twisted pair of wires in a CAT5 cable to be used for digital gain control.

Abstract translation: 使用标准或现货电缆在PET块检测器和检测器电路之间进行互连可以节省大量成本，因为PET系统中PMT的数量。 鉴于空间限制，需要简单的维护，减少干扰布线的风险，不断增加布线需求，不断使用标准布线。 为了实现数字增益控制，在PET检测器块和检测器电路之间提供进一步的通信。 由于标准电缆可能没有用于这种通信的附加电线并且减少定时劣化，所以组合PMT信号，例如在PET检测器块处产生位置和能量信号。 四个PMT信号减少到三个信号，而不会降低功能，允许CAT5电缆中的第四根双绞线用于数字增益控制。

公开(公告)号：US07915593B2

公开(公告)日：2011-03-29

申请号：US11833647

申请日：2007-08-03

Applicant: Niraj K. Doshi

Inventor： Niraj K. Doshi

IPC: H04N9/09

CPC classification number: G01T1/1644 ,  A61B6/037 ,  G01T1/208

Abstract: A photo detector matrix may have a plurality of photo detectors arranged in a matrix each generating an output signal, and a plurality of wires coupled with the photo detectors, wherein a number of wires is less than a number of photo detectors and the plurality of photo detectors are assigned to the plurality of wires such that signals generated by the plurality of photo detectors encode a location of a light peak applied to the photo detector matrix.

Abstract translation: 光检测器矩阵可以具有布置在矩阵中的多个光电检测器，每个光检测器产生输出信号，以及与光检测器耦合的多个引线，其中多条导线小于多个光电检测器，并且多个照片 检测器被分配给多个导线，使得由多个光电检测器产生的信号编码施加到光电检测器矩阵的光峰的位置。

公开(公告)号：US07164136B2

公开(公告)日：2007-01-16

申请号：US10680015

申请日：2003-10-07

Applicant: Mehmet Aykac ,  Matthias J. Schmand ,  Niraj K. Doshi ,  Mark S. Andreaco ,  Lars A. Eriksson ,  Charles W. Williams ,  Ronald Nutt

Inventor： Mehmet Aykac ,  Matthias J. Schmand ,  Niraj K. Doshi ,  Mark S. Andreaco ,  Lars A. Eriksson ,  Charles W. Williams ,  Ronald Nutt

IPC: G01T3/06

CPC classification number: G01T1/1644 ,  A61B6/037 ,  G01T1/2928

Abstract: A detector for use in imaging applications includes at least one detector array, an array of photodetectors, and a continuous light guide disposed between the detectors and the photodetectors. The light guide is continuous over the entire area of the photodetectors and detectors. The thickness of the light guide is optimized based on the shape of the photodetector array. Each detector array includes a plurality of scintillator elements disposed in an M×N array, where “M” and “N” are independently selectable and are each at least one. A mechanism for maintaining the relative positions of the individual scintillator elements with respect to each other is provided. The retainer is further provided to enhance the separation between the individual detector arrays to define distinct boundaries between the position profiles of the scintillator arrays.

Abstract translation: 用于成像应用的检测器包括至少一个检测器阵列，光电检测器阵列，以及设置在检测器和光电探测器之间的连续光导。 导光体在光电检测器和检测器的整个区域上是连续的。 基于光电检测器阵列的形状优化光导的厚度。 每个检测器阵列包括设置在MxN阵列中的多个闪烁体元件，其中“M”和“N”可独立选择并且各自至少一个。 提供了用于保持各个闪烁体元件相对于彼此的相对位置的机构。 进一步提供保持器以增强各个检测器阵列之间的间隔，以限定闪烁体阵列的位置分布之间的不同边界。

公开(公告)号：US20140195954A1

公开(公告)日：2014-07-10

申请号：US14147770

申请日：2014-01-06

Applicant: Niraj K. Doshi

Inventor： Niraj K. Doshi

IPC: G06F3/0484 ,  G06F3/0482 ,  A61B6/03 ,  A61B5/00 ,  A61B5/055

CPC classification number: A61B6/037 ,  A61B5/0035 ,  A61B5/055 ,  A61B6/583 ,  G01R33/543 ,  G06F19/321 ,  G16H40/20

Abstract: Workflow information is populated in a user interface of a medical system. One or more accessories are detected. The user interface is updated to assist the user based on the identity of the accessory. One or more lists may be created based on the identity, such as a list of examinations or protocols usable with the accessory. One or more fields for configuring the imaging system for scanning may be pre-filled based on the identity, such as using values used in a previous configuration for scanning with the accessory. The workflow through the user interface may be streamlined or configured to allow for more consistent, rapid, or easier input by the user based on the detection of the accessory.

Abstract translation: 工作流信息填充在医疗系统的用户界面中。 检测到一个或多个附件。 更新用户界面以根据附件的身份来帮助用户。 可以基于身份创建一个或多个列表，例如可以使用附件的考试或协议的列表。 用于配置用于扫描的成像系统的一个或多个字段可以基于身份预先填充，诸如使用用于先前配置的用于与附件一起扫描的值。 通过用户界面的工作流程可以被简化或配置为允许用户基于对附件的检测而进行更一致，快速或更容易的输入。

公开(公告)号：US08470214B2

公开(公告)日：2013-06-25

申请号：US10856225

申请日：2004-05-28

Applicant: James L. Corbeil ,  Troy Marlar ,  Matthias J. Schmand ,  Niraj K. Doshi ,  Mark S. Andreaco

Inventor： James L. Corbeil ,  Troy Marlar ,  Matthias J. Schmand ,  Niraj K. Doshi ,  Mark S. Andreaco

IPC: B29D11/00

CPC classification number: G01T1/20 ,  B23K2103/50 ,  G01T1/2002

Abstract: A method for fabricating a detector or light guide using laser technology. The method yields a detector component such as a scintillator, light guide or optical sensor which provides for the internal manipulation of light waves via the strategic formation of micro-voids to enhance control and collection of scintillation light, allowing for accurate decoding of the impinging radiation. The method uses laser technology to create micro-voids within a target media to optically segment the media. The micro-voids are positioned to define optical boundaries of the optically-segmented portions forming virtual resolution elements within the scintillator. Each micro-void is formed at its selected location using a laser source. The laser source generates and focuses a beam of light into the target media sequentially to form the micro-voids. The laser beam ablates the media at the focal point, thereby yielding the micro-void.

Abstract translation: 一种使用激光技术制造检测器或导光体的方法。 该方法产生诸如闪烁体，光导或光学传感器的检测器组件，其通过微空隙的战略形成提供对光波的内部操纵，以增强闪烁光的控制和收集，允许对入射辐射的精确解码 。 该方法使用激光技术在目标介质内产生微孔，以光学分段介质。 微孔被定位以限定在闪烁体内形成虚拟分辨元件的光学分割部分的光学边界。 使用激光源在其选定位置形成每个微孔。 激光源产生并将光束聚焦到目标介质中以形成微空隙。 激光束在焦点处消融介质，从而产生微孔。

公开(公告)号：US07579599B2

公开(公告)日：2009-08-25

申请号：US11941562

申请日：2007-11-16

Applicant: Nan Zhang ,  Volker Matschl ,  Niraj K. Doshi ,  Matthias J. Schmand

Inventor： Nan Zhang ,  Volker Matschl ,  Niraj K. Doshi ,  Matthias J. Schmand

IPC: G01T1/164

CPC classification number: A61B6/037 ,  A61B6/56

Abstract: A medical device with a high voltage connection line for carrying a high DC supply voltage has a control unit generating said high DC supply voltage which is fed through a first AC block unit to said high voltage connection line and generating a digital control signal fed through a first AC coupling unit to said high voltage connection line, and a remotely located unit a second AC block unit coupled to said high voltage connection line for receiving said high DC supply voltage and a second AC coupling unit coupled to said high voltage connection line for receiving said digital control signal.

Abstract translation: 具有用于承载高直流电源电压的高压连接线的医疗装置具有产生所述高直流电源电压的控制单元，所述高直流电源电压通过第一AC块单元馈送到所述高压连接线，并产生通过 第一AC耦合单元连接到所述高压连接线，以及远程定位单元，耦合到所述高压连接线的第二AC块单元，用于接收所述高DC电源电压;以及第二AC耦合单元，耦合到所述高压连接线，用于接收 所述数字控制信号。

公开(公告)号：US09006664B2

公开(公告)日：2015-04-14

申请号：US13115220

申请日：2011-05-25

Applicant: Nan Zhang ,  Niraj K. Doshi ,  Matthias J. Schmand

Inventor： Nan Zhang ,  Niraj K. Doshi ,  Matthias J. Schmand

IPC: G01T1/20

CPC classification number: G01T1/2018

Abstract: Signals generated by radiation sensors can be encoded to reduce the number of cables needed to transport information from a nuclear imaging apparatus to a processor for reconstruction. For example, signals from 16 radiation sensors can be encoded into three signals: T (top), L (left), and E (energy). This method of encoding signals can be capable of substantially reducing the number of signals, thereby reducing costs. In addition, reducing the number of signals could improve system timing performance by eliminating cable time-skew and facilitate the filter design by downgrading the circuit accuracy requirements such as group-delay error and filter signal skews.

Abstract translation: 可以编码由辐射传感器产生的信号以减少将信息从核成像设备传输到处理器以进行重建所需的电缆数量。 例如，来自16个辐射传感器的信号可以被编码成三个信号：T（上），L（左）和E（能量）。 这种编码信号的方法能够显着减少信号的数量，从而降低成本。 此外，减少信号数量可以通过消除电缆时间偏移来提高系统定时性能，并通过降低电路精度要求（如组延迟误差和滤波器信号偏移）来促进滤波器设计。

公开(公告)号：US20120212355A1

公开(公告)日：2012-08-23

申请号：US13115220

申请日：2011-05-25

Applicant: Nan Zhang ,  Niraj K. Doshi ,  Matthias J. Schmand

Inventor： Nan Zhang ,  Niraj K. Doshi ,  Matthias J. Schmand

IPC: H03M7/00 ,  G01T1/20 ,  G01T1/00

CPC classification number: G01T1/2018

Abstract: Signals generated by radiation sensors can be encoded to reduce the number of cables needed to transport information from a nuclear imaging apparatus to a processor for reconstruction. For example, signals from 16 radiation sensors can be encoded into three signals: T (top), L (left), and E (energy). This method of encoding signals can be capable of substantially reducing the number of signals, thereby reducing costs. In addition, reducing the number of signals could improve system timing performance by eliminating cable time-skew and facilitate the filter design by downgrading the circuit accuracy requirements such as group-delay error and filter signal skews.

Abstract translation: 可以编码由辐射传感器产生的信号以减少将信息从核成像设备传输到处理器以进行重建所需的电缆数量。 例如，来自16个辐射传感器的信号可以被编码成三个信号：T（上），L（左）和E（能量）。 这种编码信号的方法能够显着减少信号的数量，从而降低成本。 此外，减少信号数量可以通过消除电缆时间偏移来提高系统定时性能，并通过降低电路精度要求（如组延迟误差和滤波器信号偏移）来促进滤波器设计。

公开(公告)号：US20090072151A1

公开(公告)日：2009-03-19

申请号：US11941562

申请日：2007-11-16

Applicant: Nan Zhang ,  Volker Matschl ,  Niraj K. Doshi ,  Matthias J. Schmand

Inventor： Nan Zhang ,  Volker Matschl ,  Niraj K. Doshi ,  Matthias J. Schmand

IPC: G01T1/164 ,  H04B3/54

CPC classification number: A61B6/037 ,  A61B6/56

Abstract: A medical device with a high voltage connection line for carrying a high DC supply voltage has a control unit generating said high DC supply voltage which is fed through a first AC block unit to said high voltage connection line and generating a digital control signal fed through a first AC coupling unit to said high voltage connection line, and a remotely located unit a second AC block unit coupled to said high voltage connection line for receiving said high DC supply voltage and a second AC coupling unit coupled to said high voltage connection line for receiving said digital control signal.

Abstract translation: 具有用于承载高直流电源电压的高压连接线的医疗装置具有产生所述高直流电源电压的控制单元，所述高直流电源电压通过第一AC块单元馈送到所述高压连接线，并产生通过 第一AC耦合单元连接到所述高压连接线，以及远程定位单元，耦合到所述高压连接线的第二AC块单元，用于接收所述高DC电源电压;以及第二AC耦合单元，耦合到所述高压连接线，用于接收 所述数字控制信号。