| 摘要 |
A patient support device for accurately and repeatably positioning a patient for treatment. The device comprises a top surface, a bottom surface, two sides and at least two sidewalls. The device can include an integral indexing means and an accessory device adaptor for receiving various accessories. The device can incorporate chamfered edge technology and can include indexing grooves on at least one surface of the device. In another embodiment, the present invention includes asymmetric indexing that can be achieved by using different indexing features from one side of the receiving device to the other. This asymmetric indexing is accomplished by using indexing features on either side of the receiving device that do not have the same geometry. As an alternative, the features can be of different geometries and the opposing features can be offset. When offset, the portion of the couchtop directly opposing a feature will be free of an indexing feature.
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