US 12,064,275 B2
X-ray diagnostic apparatus
Shumpei Ohashi, Otawara (JP); and Hisato Takemoto, Nasushiobara (JP)
Assigned to CANON MEDICAL SYSTEMS CORPORATION, Otawara (JP)
Filed by CANON MEDICAL SYSTEMS CORPORATION, Otawara (JP)
Filed on Dec. 9, 2021, as Appl. No. 17/643,480.
Claims priority of application No. 2020-205233 (JP), filed on Dec. 10, 2020.
Prior Publication US 2022/0183640 A1, Jun. 16, 2022
Int. Cl. A61B 6/00 (2024.01); A61B 6/06 (2006.01); A61B 6/42 (2024.01)
CPC A61B 6/4441 (2013.01) [A61B 6/06 (2013.01); A61B 6/4208 (2013.01); A61B 6/4291 (2013.01); A61B 6/5282 (2013.01); A61B 6/54 (2013.01)] 10 Claims
OG exemplary drawing
 
1. An X-ray diagnostic apparatus, comprising:
an X-ray tube configured to emit X-rays;
an X-ray detector configured to detect the X-rays emitted from the X-ray tube;
a grid configured to have a fixed relative position to the X-ray detector and being provided with stripes extending in a first direction to remove scattered rays;
a slide mechanism including at least one slide rail along the first direction and configured to hold the X-ray detector so as to slide the X-ray detector in the first direction;
a rotary mechanism including a rotation shaft and configured to rotatably hold the slide mechanism;
an arm configured to hold the rotary mechanism, and being operable,
a top plate on which a subject is placed; and
a top-plate movement mechanism configured to move and tilt the top plate, wherein
the slide mechanism is further configured to control a slide amount of the X-ray detector based on a clinical angle calculated based on an angle of the arm and a position of the top plate, and
the rotary mechanism is further configured to rotate the slide mechanism based on an operating direction of the arm and the position of the top plate such that the first direction becomes parallel to a direction in which the X-ray detector moves away from the subject.