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公开(公告)号：US5519223A
公开(公告)日：1996-05-21
申请号：US206386
申请日：1994-03-03
CPC分类号： G01T1/1648
摘要： An automatic collimator exchanger for a gamma camera system for simultaneous exchange of pairs of collimators (or a single collimator) for a dual detector head system. The present invention includes an exchange assembly having an elevator, a carriage and a bridge. The elevator includes a rack of multiple parallel and stacked trays for holding various pairs of collimators. A draw bridge unit is attached to one side of the elevator (which side faces a gantry structure) and may extend into the gantry structure. The carriage is able to support two collimators and moves from within the elevator unit onto the bridge and into the gantry structure, when the bridge is lowered, to position between two aligned detector heads of the dual head gamma camera system. When the detector heads are positioned near the aligned carriage, latch pins are released and collimators may be transferred to the carriage, if empty, or hastened to the detector heads from the carriage when installing a pair of collimators. Sliding lock plates (each having hooks and a safety latch pin) are mounted on both sides of each of the detector heads and are used to transfer the collimators between the carriage and the detector heads during the exchange (for removal and installation) and are used to secure the collimators to the detector heads during an imaging session. One collimator or a pair may be simultaneously exchanged using the present invention without operator intervention.
摘要翻译： 一种用于伽马相机系统的自动准直器交换器，用于同时交换双检测器头系统的准直器对（或单个准直仪）。 本发明包括具有电梯，托架和桥的交换组件。 电梯包括多个平行和堆叠的托架的架子，用于保持各种准直器对。 牵引桥单元连接到电梯的一侧（该侧面是龙门架结构）并且可延伸到机架结构中。 当桥接器下降时，滑架能够支撑两个准直器并从电梯单元内移动到桥架上并进入机架结构，以便位于双头伽马相机系统的两个对准的检测器头之间。 当检测器头位于对准的托架附近时，释放闩锁销，并且当安装一对准直器时，准直器可能被传送到托架（如果是空的）或者从托架移动到检测器头。 在每个检测器头的两侧都安装有滑动锁板（每个都有钩子和安全闩锁销），用于在更换（用于拆卸和安装）过程中将准直器在托架和检测器头之间传输（用于拆卸和安装） 以在成像会话期间将准直器固定到检测器头。 一个准直器或一对可以在没有操作者干预的情况下使用本发明同时交换。
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