-
公开(公告)号：US06449340B1
公开(公告)日：2002-09-10
申请号：US09764798
申请日：2001-01-18
IPC分类号： G21K104
摘要： The present disclosure provides an adjustable collimator for collimating a beam of energy emitted from a focal spot of a beam source. The collimator is particularly intended for collimating an x-ray beam of a computed tomography scanner after the x-ray beam has passed through a patient being scanned. The collimator includes two elongated parallel plates arranged side by side to define a collimating slit between the plates. At least one of the plates is movably relative to the other plate for varying a width of the collimating slit. The collimator also includes a movable cam operatively arranged with respect to the at least one movable plate such that movement of the cam in a first direction causes the width of the collimating slit to increase, while movement of the cam in a second direction causes the width of the collimating slit to decrease.
摘要翻译： 本公开提供了一种用于准直从光源的焦斑发射的能量束的可调整准直器。 准直器特别用于在x射线束已经通过被扫描的患者之后准直计算机断层扫描仪的X射线束。 准直器包括并排布置的两个细长平行板，以在板之间限定准直缝隙。 板中的至少一个相对于另一个板可移动以改变准直缝的宽度。 准直器还包括相对于至少一个可移动板可操作地布置的可移动凸轮，使得凸轮在第一方向上的移动导致准直狭缝的宽度增加，同时凸轮在第二方向上的移动导致宽度 的准直缝减少。
-
公开(公告)号：US06188743B1
公开(公告)日：2001-02-13
申请号：US09361452
申请日：1999-07-26
IPC分类号： G01N2300
CPC分类号： F16C19/50 , A61B6/035 , A61B6/4488 , F16C33/61 , F16C2300/14 , F16C2316/10 , G01N23/046 , G01N2223/419
摘要： In an improved computed tomography scanner drive system and bearing configuration, a gantry disk (30) is sheaved about its perimeter (65) such that the gantry is operable as a driven pulley rotatable about an object to be scanned. A motor (46) assembles mounted to a stationary frame (33) includes a similar sheaved drive pulley (80). A belt (64) tensioned between the drive pulley (80) of the motor assembly and the driven pulley of the gantry disk (30) transfers rotational motion of the motor to drive the gantry rotationally about the object. In a preferred embodiment, the belt comprises a V-belt or poly-V-belt (64), and the bearing comprises a wire bearing (59) located proximal to the gantry center of mass. In this manner, the present invention provides a simple and effective technique for driving the gantry about the object, providing sufficiently accurate angular positioning in a reliable and cost effective drive system. Various embodiments of an improved bearing system are also disclosed.
摘要翻译： 在改进的计算机断层扫描仪驱动系统和轴承配置中，围绕其周边（65）滑动龙门架（30），使得机架可操作为可围绕待扫描物体旋转的从动带轮。 安装到固定框架（33）的马达（46）组装件包括类似的滑轮驱动滑轮（80）。 张紧在马达组件的驱动滑轮（80）和龙门架盘（30）的从动皮带轮之间的皮带（64）转动马达的旋转运动，以绕机架旋转地驱动机架。 在优选实施例中，带包括V形带或多V形带（64），并且轴承包括位于台架中心附近的线轴承（59）。 以这种方式，本发明提供了一种用于驱动靠近物体的机架的简单且有效的技术，在可靠和具有成本效益的驱动系统中提供足够精确的角度定位。 还公开了改进的轴承系统的各种实施例。
-
公开(公告)号：US06396902B2
公开(公告)日：2002-05-28
申请号：US09766373
申请日：2001-01-19
IPC分类号： G21K104
CPC分类号： G21K1/025
摘要： A collimator having slits of varied widths, wherein each slit includes a curved side profile having a common axis of curvature for providing a cross-section of an emitted beam of energy with a substantially uniform width when the common axis of curvature of the slit intersects a focal spot of a source of the beam. The collimator is curved about a rotation axis substantially normal to the common axis of curvature, such that rotating the collimator about the rotation axis will sequentially position the slits to collimate the emitted beam.
摘要翻译： 具有不同宽度的狭缝的准直器，其中每个狭缝包括弯曲的侧面轮廓，该弯曲的侧面轮廓具有共同的曲率轴线，用于当狭缝的共同的曲轴相交时提供具有基本均匀的宽度的发射的能量束的横截面 光源的焦点。 准直器围绕基本上垂直于共同的曲率轴线的旋转轴线弯曲，使得围绕旋转轴线旋转准直器将顺序地定位狭缝以准直发射的光束。
-
公开(公告)号：US06337894B1
公开(公告)日：2002-01-08
申请号：US09764797
申请日：2001-01-18
IPC分类号： A61B603
CPC分类号： F16C33/61 , A61B6/035 , F16C19/183 , F16C2300/14 , F16C2316/10
摘要： The present disclosure provides a gantry of a CT scanner. The gantry includes an annular outer support having a radially inwardly facing, continuous circumferencial bearing chamber, an annular drum concentrically positioned within the outer support and having a continuous circumferential bearing lip radially extending into the bearing chamber of the outer support to define two circumferential bearing runs within the bearing chamber, and an annular disk extending radially inwardly from an inner circumferential surface of the drum. The disk is adapted to receive and support computed tomography components. The gantry also includes roller bearings in the bearing runs rotatably supporting the drum within the outer support, such that the drum and the disk are rotatable about a rotation axis of the drum.
摘要翻译： 本公开提供了CT扫描器的台架。 机架包括具有径向向内的连续圆周承载室的环形外部支撑件，同心地定位在外部支撑件内的环形鼓，并且具有径向延伸到外部支撑件的轴承室中的连续圆周轴承唇缘，以限定两个圆周方向轴承 在轴承室内，以及从滚筒的内圆周表面径向向内延伸的环形盘。 盘适于接收和支持计算机断层摄影部件。 龙门架还包括在轴承中的滚子轴承，其可旋转地支撑滚筒在外部支撑件内，使得滚筒和盘可绕滚筒的旋转轴线旋转。
-
公开(公告)号：US06452998B2
公开(公告)日：2002-09-17
申请号：US09760626
申请日：2001-01-16
IPC分类号： H05G160
CPC分类号： A61B6/4447
摘要： A frame for an x-ray tomography device allows a gantry of the frame to be tilted with a minimum applied force. The frame includes a stand having two arms, and the annular gantry is positioned between the two arms and has an outer support pivotally mounted to the arms of the stand for tilting of the gantry about a tilt is of the gantry extending between the arms. An inner support is rotatable within and with respect to the outer support about a spin axis of the gantry extending substantially normal to the tilt axis. The inner support is adapted to hold x-ray tomography components for rotation therewith. The frame also includes a tilt guide secured to one of the gantry and the stand at an outermost circumference of the gantry, and a drive mechanism secured to the other of the gantry and the stand for applying a force to the tilt guide so that the gantry tilts about the tilt axis.
摘要翻译： 用于X射线断层摄影装置的框架允许以最小施加的力倾斜框架的台架。 框架包括具有两个臂的支架，并且环形门架位于两个臂之间，并且具有枢转地安装到支架的臂的外部支撑件，用于在支架之间延伸的台架的倾斜倾斜。 内部支撑件围绕基本上垂直于倾斜轴延伸的机架的旋转轴线在外部支撑件内并相对于外部支撑件旋转。 内部支撑件适于保持与其旋转的X射线断层成像部件。 该框架还包括一个倾斜导向件，该倾斜导向件固定在机架的一个台架和台架的台架的最外周;以及驱动机构，固定在台架和支架的另一个上，用于向倾斜导向件施加力， 倾斜倾斜轴。
-
公开(公告)号：US06721388B2
公开(公告)日：2004-04-13
申请号：US10151270
申请日：2002-05-20
IPC分类号： H05G160
CPC分类号： A61B6/4447
摘要： A frame for an x-ray tomography device allows a gantry of the frame to be tilted with a minimum applied force. The frame includes a stand including two substantially upright arms, a gantry positioned between and pivotally mounted to the arms of the stand for tilting about a tilt axis extending between the arms, a tilt guide secured to one of the gantry and the stand, and at least two spaced-apart wheels, each wheel operatively engaging the tilt guide such that turning the wheels applies a force to the tilt guide so that the gantry tilts about the tilt axis.
摘要翻译： 用于X射线断层摄影装置的框架允许以最小施加的力倾斜框架的台架。 该框架包括一个支架，该支架包括两个基本上直立的臂，一个台架位于支架的臂之间，并可枢转地安装在支架的臂上，用于围绕在两臂之间延伸的倾斜轴线倾斜，一个倾斜导向件固定在一个台架和支架上， 至少两个间隔开的轮子，每个轮子可操作地接合倾斜导向器，使得转动车轮向倾斜导向件施加力，使得机架围绕倾斜轴线倾斜。
-
公开(公告)号：US06519312B1
公开(公告)日：2003-02-11
申请号：US09764635
申请日：2001-01-18
IPC分类号： A61B603
摘要： The present disclosure provides a system for mounting an x-ray tube to a gantry disk of a CT scanner. The system is designed to make lifting and handling a heavy and cumbersome x-ray tube easier for a person removing or replacing the x-ray tube in a CT scanner. The system includes a harness adapted to be secured to the x-ray tube, at least two elongated rods secured to the harness, and two elongated tracks adapted to be secured to the gantry disk such that the tracks extend generally parallel with a z-axis of the CT scanner. Each track includes a channel for slidingly receiving one of the rods. The present disclosure also provides a method of mounting an x-ray tube in a gantry of a CT scanner. The method includes securing a harness to the x-ray tube, securing elongated rods to the harness such that the rods extend parallel to an axis of the x-ray tube, attaching elongated guides to ends of the rods, inserting distal ends of the guides into channels of elongated tracks in the gantry of the x-ray scanner, and sliding the guides and the rods into the channels of the tracks. Then the guides are removed from the rods, and stops are secured to ends of the tracks to retain the rods within the channels.
摘要翻译： 本公开提供了一种用于将X射线管安装到CT扫描器的台架盘的系统。 该系统设计用于提升和处理沉重且麻烦的X射线管，以便人们在CT扫描仪中移除或更换X射线管。 该系统包括适于固定到X射线管的线束，固定到线束的至少两根细长杆，以及适于固定到龙门架盘的两条细长轨道，使得轨道大致平行于z轴延伸 的CT扫描仪。 每个轨道包括用于滑动地接收杆中的一个的通道。 本公开还提供了将X射线管安装在CT扫描仪的台架中的方法。 该方法包括将线束固定到X射线管上，将细长杆固定到线束上，使得杆平行于X射线管的轴线延伸，将细长的引导件连接到杆的端部，插入引导件的末端 在x射线扫描仪的台架中的细长轨道的通道中，并且将引导件和杆滑动到轨道的通道中。 然后将引导件从杆上移除，并且止动件被固定到轨道的端部以将杆保持在通道内。
-
8.发明授权公开(公告)号：US08057097B1
公开(公告)日：2011-11-15
申请号：US12712664
申请日：2010-02-25
CPC分类号： A61B6/4405 , A61B6/035 , G01N23/046 , G01N2223/419 , G01N2223/612
摘要： An anatomical imaging system including a scanner having an opening for receiving a patient, a transport mechanism mounted to the base of the scanner, wherein the transport mechanism comprises a movement mechanism for moving the scanner, relative to the patient, and a radiation-protective curtain pivotally connected to the scanner so as to cover at least one side of the opening in the scanner during scanning.
摘要翻译： 一种解剖学成像系统，包括具有用于接收患者的开口的扫描器，安装到扫描仪的基部的传送机构，其中所述传送机构包括用于相对于患者移动扫描仪的移动机构和辐射防护帘 枢转地连接到扫描仪，以便在扫描期间覆盖扫描器中的开口的至少一侧。
-
9.发明授权Mobile computerized tomography (CT) imaging system with off-center x-ray beam 有权具有偏心X射线束的移动计算机断层摄影（CT）成像系统公开(公告)号：US07568836B2
公开(公告)日：2009-08-04
申请号：US11653706
申请日：2007-01-16
CPC分类号： A61B6/032 , A61B6/04 , A61B6/4405 , A61B6/4488 , A61B6/501 , G01N2223/419 , G01N2223/612 , H05G1/025
摘要： A mobile CT imaging system comprising: a housing having a center opening; and a CT imaging unit mounted to the housing, wherein the CT imaging unit is adapted to scan anatomical objects located within the center opening and generate images of the same, wherein the CT imaging unit comprises: a rotatable drum assembly disposed within the housing, concentric with the center opening; an X-ray tube mounted on the rotatable drum assembly and configured to emit an X-ray beam; and an X-ray detector mounted on the rotatable drum assembly in alignment with the X-ray beam; wherein the X-ray beam is disposed in an “off-center” configuration, adjacent to an entrance of the center opening. A CT imaging system comprising: a housing having a center opening larger than the head of a patient and smaller than the shoulders of a patient; and a CT imaging unit mounted to the housing, wherein the CT imaging unit is adapted to scan anatomical objects located within the center opening and generate images of the same, wherein the CT imaging unit is configured to scan substantially the full range of the anatomy placed within the center opening.
摘要翻译： 一种移动CT成像系统，包括：具有中心开口的壳体; 以及CT成像单元，其安装在所述壳体上，其中所述CT成像单元适于扫描位于所述中心开口内的解剖学物体并产生其中的图像，其中所述CT成像单元包括：设置在所述壳体内的可旋转鼓组件，同心 与中心开口; 安装在所述可旋转鼓组件上并被配置为发射X射线束的X射线管; 以及X射线检测器，其安装在与X射线束对准的可旋转滚筒组件上; 其中所述X射线束以与所述中心开口的入口相邻的“偏心”构造设置。 一种CT成像系统，包括：具有大于患者头部的中心开口并且小于患者的肩部的壳体; 以及CT成像单元，其安装到所述壳体，其中所述CT成像单元适于扫描位于所述中心开口内的解剖学物体并产生所述CT成像单元，其中所述CT成像单元被配置为基本上扫描所放置的解剖结构的全部范围 在中心开口。
-
公开(公告)号：US06914959B2
公开(公告)日：2005-07-05
申请号：US10215546
申请日：2002-08-09
CPC分类号： A61B6/032 , A61B6/022 , A61B6/4014 , A61B6/482 , A61N5/103 , A61N5/1049 , A61N2005/1054 , A61N2005/1061
摘要： A method of and system for locating a targeted region in a patient uses a CT imaging subsystem and a radiotherapy subsystem arranged so the targeted region can be imaged with the imaging system and treated with a beam of therapeutic X-ray radiation using a radiotherapy subsystem. The beam of therapeutic X-rays is in a plane that is substantially fixed relative to, and preferably coplanar with, a slice plane of the CT imaging subsystem so that the targeted region can be imaged during a planning phase, and imaged and exposed to the therapeutic X-rays during the treatment phase without the necessity of moving the patient.
摘要翻译： 用于定位患者中的目标区域的方法和系统使用CT成像子系统和放射治疗子系统，所述放射治疗子系统布置成使得目标区域可以与成像系统成像并且使用放射线治疗子系统用治疗X射线束照射。 治疗性X射线束在与CT成像子系统的切片平面相对并且优选共面的基本上固定的平面中，使得目标区域可以在规划阶段被成像，并成像并暴露于 治疗期间的治疗X射线，而不需要移动患者。
-
-
-
-
-
-
-
-
-
搜索结果
54 条记录 (耗时 0.023 秒)
