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    CEREBROSPINAL FLUID SHUNT CAPABLE OF MINIMAL INVASIVE REVISION
    151.
    发明授权
    CEREBROSPINAL FLUID SHUNT CAPABLE OF MINIMAL INVASIVE REVISION 失效
    对于低侵入式修订为宜，ZEREBROSPIRALEFLÜSSIGKEITSABLEITVORRICHTUNG

    公开(公告)号：EP0637971B1

    公开(公告)日：1997-12-10

    申请号：EP93910608.4

    申请日：1993-04-15

    Applicant: LOMA LINDA UNIVERSITY MEDICAL CENTER

    Inventor： KIRSH, Wolff, M. ,  ZHU, Yong, Hua

    IPC: A61M1/00 ,  A61M39/02

    CPC classification number: A61B18/24 ,  A61B17/320016 ,  A61M27/006

    Abstract: A surgical shunt (20) capable of revision and inspection on a minimal invasive basis is provided. The shunt (20) comprises a ventricle tube (22) and drain tube (30) connected by an elbow (24). The elbow (24) has branches (25) and a bend therein so as to connect the tubes (22, 30) at nearly a right angle. A portal (26) is mounted on the bend of said elbow (24). The portal (26) comprises a concave slit valve (46) and a portal cover (48) thus forming a self-sealing access to the shunt (20). The portal (26) is oriented on the elbow (24) so as to allow passage therethrough into either of said tubes (22, 30) by an angioscope or other device. Thus, the angioscope or other device can be externally inserted into the interior regions of the shunt (20) in order to remove blockages and improve cerebrospinal fluid flow without surgical procedures. An external conduit (54) runs parallel along the length of the drain tube (30). This conduit (54) contains a number of openings (56) along its length for the delivery of antibiotics and other therapeutic substances to the tissues surrounding the shunt (30).

    BEAMLINE CONTROL AND SECURITY SYSTEM FOR A RADIATION TREATMENT FACILITY
    152.
    发明公开
    BEAMLINE CONTROL AND SECURITY SYSTEM FOR A RADIATION TREATMENT FACILITY 失效
    BEAM供应管理和保障制度，放射治疗设备

    公开(公告)号：EP0809524A1

    公开(公告)日：1997-12-03

    申请号：EP96904617.0

    申请日：1996-02-13

    Applicant: LOMA LINDA UNIVERSITY MEDICAL CENTER

    Inventor： BRITTON, Barrie, G. ,  LESYNA, David, A. ,  SLATER, Jon, W.

    IPC: A61N5 ,  G21K5

    CPC classification number: A61N5/1079 ,  A61N5/1048 ,  A61N2005/1074 ,  A61N2005/1087 ,  G06F19/00 ,  G21K5/04

    Abstract: The present invention is directed to a method and apparatus for beamline security in radiation beam treatment facilities. The system monitors and controls the radiation beam steering system to safeguard against wrong-path and multiple-path conditions which could otherwise lead to accidental radiation exposure. One aspect of the method involves comparing the beam path configuration signals to signals corresponding to a requested beam configuration to check for agreement, as well as singular path configuration. Controller checks are performed using complimentary-redundant logical communication paths applied to the state of the beam steering system. Upon detection of any one of several possible error conditions, such as over-heating, communication link failure, unauthorized personnel entry and multiple path condition, the beamline power supplies are disabled, preventing transfer of the radiation beam to the treatment room.

    Detector for a radiation therapy transport apparatus
    154.
    发明公开
    Detector for a radiation therapy transport apparatus 失效
    Detektorfürein Strahlungstherapie-Transport-Gerät。

    公开(公告)号：EP0681852A1

    公开(公告)日：1995-11-15

    申请号：EP95870046.0

    申请日：1995-05-04

    Applicant: LOMA LINDA UNIVERSITY MEDICAL CENTER

    Inventor： Coutrakon, George B. ,  Lesyna, David A.

    IPC: A61N5/10 ,  G01T1/29

    CPC classification number: A61N5/1048 ,  A61N5/1075 ,  A61N2005/1087

    Abstract: A beam sensor is used to detect the shape and position of a charged particle beam in a radiation transport system (10). The sensor (18) is comprised of a movable detector assembly (20) which is movable into and out of the beam path. Ionization chambers (48,50,52) are housed within the detector assembly and contain a substance which is ionizable by the charged particle beam. Each chamber is comprised of rigid plates (40,42,44,46) having patterns of conductive material which produce signals in response to the ionization of the ionizable substance by the beam.

    Abstract translation: 光束传感器用于检测辐射传输系统（10）中的带电粒子束的形状和位置。 传感器（18）包括可移动进入和离开光束路径的可移动检测器组件（20）。 电离室（48,50,52）被容纳在检测器组件内并且包含可被带电粒子束电离的物质。 每个室由刚性板（40,42,44,46）组成，其具有导电材料的图案，该导电材料响应于该可离子化物质的离子化而产生信号。

    RASTER SCAN CONTROL SYSTEM FOR A CHARGED-PARTICLE BEAM
    155.
    发明公开
    RASTER SCAN CONTROL SYSTEM FOR A CHARGED-PARTICLE BEAM 失效
    GRID-SENSE控制系统用于带电粒子一堆。

    公开(公告)号：EP0465597A1

    公开(公告)日：1992-01-15

    申请号：EP90906574.0

    申请日：1990-03-30

    Applicant: LOMA LINDA UNIVERSITY MEDICAL CENTER

    Inventor： YOUNG, Phillip, E. ,  Mc COLL, David, B.

    IPC: A61N5 ,  G21K1 ,  G21K5 ,  H01J37 ,  H05H7

    CPC classification number: A61N5/1048 ,  A61N5/1043 ,  A61N2005/1074 ,  A61N2005/1087 ,  G06F19/00 ,  G21K1/093 ,  H01J37/24

    Abstract: A raster scan control system (18) for use with a charged-particle beam delivery system (20) provides precise control of large currents driving an inductive load. The beam delivery system includes a nozzle through which a charged-particle beam (24), such as a proton beam, passes prior to being directed to a target (32). The nozzle includes both fast and slow sweep scan electromagnets (204, 208) that cooperate to generate a sweeping magnetic field that steers the beam along a desired raster scan pattern at the target. The electromagnets are driven by large currents (213, 215) from the raster scan control system. The raster scan control system includes both fast and slow power amplifiers (212, 214) for delivering the desired large currents to the fast and slow electromagnets, respectively; monitoring means (206, 210) for monitoring the magnetic fields; sensing means (212, 230) for sensing the large currents; feedback means for maintaining the magnetic fields and large current at desired levels; out of tolerance means for automatically causing the servo power amplifiers to steer the beam away from the target area in the event the error signal becomes excessive; a programmable raster generator (80) for providing the fast and slow power amplifiers with a raster scan signal (216, 218) that defines the desired raster pattern; and a power supply (74) for delivering the requisite power to the power amplifiers and other components.

    PATIENT ALIGNMENT SYSTEM AND PROCEDURE FOR RADIATION TREATMENT
    156.
    发明公开
    PATIENT ALIGNMENT SYSTEM AND PROCEDURE FOR RADIATION TREATMENT 无效
    设备，用于放射治疗患者定位。

    公开(公告)号：EP0465590A1

    公开(公告)日：1992-01-15

    申请号：EP90906499.0

    申请日：1990-03-30

    Applicant: LOMA LINDA UNIVERSITY MEDICAL CENTER

    Inventor： MILLER, Daniel, W. ,  SLATER, James, M.

    IPC: A61B6 ,  A61N5 ,  A61B19

    CPC classification number: A61B6/08 ,  A61B2090/101 ,  A61N5/1048 ,  A61N5/1049 ,  A61N5/1069 ,  A61N2005/1061 ,  A61N2005/1062 ,  A61N2005/1087 ,  A61N2005/1097

    Abstract: La présente invention permet d'obtenir l'alignement d'un patient de façon précise et renouvelable par rapport à un faisceau de particules chargées utilisé dans un système de thérapie par faisceau de rayons tel qu'un système d'émission de faisceau de protons. Le patient (26) est immobilisé dans une nacelle médicale (24) adaptée à sa morphologie. Des radiographies de référence sont préparées au moyen d'un système à rayon X (40) et sont utilisées pour le repositionnement ultérieur du patient dans la nacelle. Un système de balayage "CT" (tomographie par ordinateur) (44) est utilisé pour obtenir des données de balayage "CT" relatives à un volume de tissus particulier (30), par exemple une région du corps du patient dans laquelle a été localisée une tumeur cancéreuse, pendant que le patient (26) reste étendu dans la nacelle (24). Les données de balayage "CT" sont utilisées pour préparer un plan de traitement pour le patient. Dans le plan de traitement est incluse l'identification d'un isocentre à l'intérieur du volume de tissu, sur lequel doit être dirigé le faiseau à partir d'un ou de plusieurs angles sélectionnés. Une simulation par ordinateur du plan de traitement est effectuée pour optimiser le plan de traitement.

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