Sughrue, Mion, Zinn, Macpeak & Seas
K-filter for serial high-speed rotatography and apparatus for the rotatography
 A K-filter is the one attached to an apparatus for serial high-speed rotatography for photographing an object to be examined by use of X-rays. The filter comprises two K-containers (5a and 5b) in which a space is defined for fluidly containing a radiopaque fluid substance, and a radiotransparent region (2) formed between the two K-containers (5a and 5b). The K-containers (5a and 5b) are pivotally supported by a supporting member (1a) and are of the inversion type which allows the radiotransparent region sides of the K-containers to move. Therefore, when this apparatus is rotated at a high speed to more than 180.degree., it is possible to conduct filtering under any conditions such as an inclined posture, not the horizontal posture, under which photographing is started. 
Yamanouchi Pharmaceutical Co., Ltd.
A G G
A61B G21K G21K
additional inventional inventional
Tatsuo Hifumi
Kumazaki Yamada