Patent ID: 7429131
Filing Date: 2008-09-30
Classification: G03B

Abstract:
1. A portable radiographic imaging apparatus including a system for facilitating proper alignment of a ray capturing section of the apparatus with a ray source while a subject patient is positioned therebetween for imaging, the apparatus comprising: a sensor for converting received rays into electrical signals, the sensor having a rectangular-shaped effective capturing area; a rectangular box-shaped casing adapted to enclose the sensor, the casing having an open-top for receiving the sensor; and a rectangular-shaped cover adapted to be received by the open-top of the casing, the cover having an entirely flat upper radiation incident surface except for four raised rectangular portions formed on the upper surface of the cover, each raised portion having a pair of inboard side edges for indicating a perimeter defining a target capturing area substantially aligned with the effective capturing area, each inboard side edge of each pair of inboard side edges being arranged perpendicular to each other of the pair and forming an inboard corner for each raised portion, the inboard corner indicating a corner of the perimeter defining the target capturing area, the raised portions having upper beveled edges for improving slidability between the subject patient and the apparatus, wherein the perimeter of the effective capturing area is perceivable by at least one of sight or by touching the inboard side edges of the raised portions, thereby allowing an operator to recognize offset between the subject patient and the capturing section during alignment/positioning of the capturing section with respect to the subject patient and the ray source.