Abstract: A method for a medical system to transmitting patient information to an external USB storage device includes checking the validity of the USB storage device according to the registered information therein, generating a new identification file according to a new times of using value that is incremented each time the validity checks are passed, and a unique ID number of the USB device, and writing the new identification file into the USB storage device to replace the old identification file.

Abstract: In order to realize a filter that can make a fine spectrum adjustment in a wide rage and can be miniaturized, and to realize an X-ray imaging apparatus provided with the filter, a filter of the present invention is provided with plural filter plates that can form a layer crossing X-ray and adjusting means that adjusts a combination of filter plates forming the layer by individually moving the plural filter plates so as to come in and out the X-ray passing space. The plural filter plates are formed such that the thickness of each filter plate is successively doubled with the thinnest filter plate defined as a reference. The adjusting means has a pair of moving in/out mechanisms for moving, every its half number, the plural filter plates in and out from both sides of the X-ray passing space.

Abstract: In order to realize a filter that can make a fine spectrum adjustment in a wide rage and can be miniaturized, and to realize an X-ray imaging apparatus provided with the filter, a filter of the present invention is provided with plural filter plates that can form a layer crossing X-ray and adjusting means that adjusts a combination of filter plates forming the layer by individually moving the plural filter plates so as to come in and out the X-ray passing space. The plural filter plates are formed such that the thickness of each filter plate is successively doubled with the thinnest filter plate defined as a reference. The adjusting means has a pair of moving in/out mechanisms for moving, every its half number, the plural filter plates in and out from both sides of the X-ray passing space.