US 11,918,396 B2
Medical imaging apparatus
Aira Hotta, Kawasaki (JP); Takashi Sasaki, Yokohama (JP); Yuko Kizu, Yokohama (JP); and Shinichi Uehara, Tokyo (JP)
Assigned to Canon Medical Systems Corporation, Otawara (JP)
Filed by Canon Medical Systems Corporation, Otawara (JP)
Filed on Jul. 25, 2018, as Appl. No. 16/045,209.
Claims priority of application No. 2017-148873 (JP), filed on Aug. 1, 2017.
Prior Publication US 2019/0038246 A1, Feb. 7, 2019
Int. Cl. A61B 5/00 (2006.01); A61B 5/055 (2006.01); A61B 6/00 (2006.01); G01R 33/28 (2006.01); G02B 3/08 (2006.01); G03B 21/14 (2006.01); G03B 21/28 (2006.01); G03B 21/56 (2006.01); G03B 29/00 (2021.01); A61B 6/03 (2006.01); A61B 6/04 (2006.01); G02B 5/10 (2006.01)
CPC A61B 6/4447 (2013.01) [A61B 5/0033 (2013.01); A61B 5/055 (2013.01); A61B 5/7445 (2013.01); A61B 6/462 (2013.01); G01R 33/283 (2013.01); G02B 3/08 (2013.01); G03B 21/142 (2013.01); G03B 21/28 (2013.01); G03B 21/56 (2013.01); G03B 29/00 (2013.01); A61B 6/032 (2013.01); A61B 6/04 (2013.01); G02B 5/10 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A medical imaging apparatus comprising:
a gantry in which a bore is formed, the bore being formed to accept a patient to be imaged by the medical imaging apparatus;
a carriage configured to move through the bore;
a screen on which an image is projected from a rear, the rear being opposite to a side of which a top plate is inserted into the bore, the screen being provided on the carriage;
a reflector configured to reflect the image projected on the screen, the reflector including a base having a surface, and a plurality of projecting prisms arranged on the surface of the base, perpendicular to an incident direction of the image, and adjacent to one another along a singular dimensional direction,
wherein each of the prisms extends in a direction parallel to a plane of the surface of the base and curves within the plane of the surface of the base, and wherein each of the prisms has a different extent of curvature within the plane of the surface of the base; and
a frame configured to support the reflector, the frame being provided on the carriage,
wherein the reflector receives a light related to the image directly from the screen, and the plurality of prisms reflect the light to the patient.