| 摘要 |
Method and device for controlling the operations of a mammographic X-ray apparatus. In the apparatus the breast (4) to be photographed is pressed between a press plate (2) and a film cassette (5) or an equivalent depicting member. In the method the compression force (F) applied by the holder means to the breast (4) to be photographed, or a quantity that represents this force (F) indirectly, is measured. On the basis of the measurement, the velocity (V) of the compression movement of the press mechanism is regulated. The apparatus comprises a C-arm (1), at one of whose ends the X-ray tube (6) is placed and at the other end the film cassette (5). The C-arm (1) is rotatable around a shaft (8) by means of a motor (9). The device comprises a detector (3) or a series of detectors which measures the compression force and by means of which the operation of the press motor (7) for the breast holders is arranged to be controlled.
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