Patent ID: 8422628
Filing Date: 2013-04-16
Classification: A61B

Abstract:
1. A medical X-ray CT imaging apparatus performing CT imaging of a part of a patient, the apparatus comprising: a base; a support part including: a rotary drive part rotatively driving said support part, wherein: said support part includes a pair of arm parts, said X-ray source is mounted onto one of said pair of arm parts and said X-ray detector is mounted onto the other one of said pair of arm parts, said pair of arm parts is supported, outside of said base, with an interval for disposing a part of a patient to be imaged between said X-ray source and said X-ray detector such that said pair of arm parts extend from said rotation support part toward outside in a cantilevered manner, said rotation support part transmits a rotational force of said rotary drive part to said support arm part, said rotation support part includes a cavity around a rotation axis; a cylindrical body provided within said cavity in a rotatable state with respect to said support part so as to be rotatable about said rotation axis with respect to said rotation support part or to be fixed to said base, the cylindrical body being open to at least a space between said X-ray source and said X-ray detector, and a space formed inside said cylindrical body is located at a position displaced from an imaged region between said X-ray source and said X-ray detector.