| US 7,508,904 B2 | ||
| X-ray CT apparatus | ||
| Tomokazu Harada, Tochigi-ken (Japan); Makoto Nakano, Tochigi-ken (Japan); Tetsuya Sadotomo, Tochigi-ken (Japan); Yasutaka Shindo, Tochigi-ken (Japan); and Katsumi Gotanda, Tochigi-ken (Japan) | ||
| Assigned to Kabushiki Kaisha Toshiba, Tokyo (Japan); and Toshiba Medical Systems Corporation, Otawara-shi (Japan) | ||
| Filed on May 14, 2007, as Appl. No. 11/748,274. | ||
| Claims priority of application No. 2006-133817 (JP), filed on May 12, 2006. | ||
| Prior Publication US 2007/0274436 A1, Nov. 29, 2007 | ||
| Int. Cl. G01N 23/00 (2006.01) | ||
| U.S. Cl. 378—15 [378/193; 378/197] | 24 Claims |
| 1. An X-ray CT apparatus comprising:
a drum type rotation frame including an annular member extending along a rotation axis and a rib member projected from an
inner surface of the annular member so as to be substantially perpendicular to the rotation axis;
an X-ray source, supportably coupled to the rib member, for irradiating X-ray beams onto an object and an X-ray detector provided
on the rib member opposite the X-ray source about the rotation axis so as to face the X-ray source, the X-ray source being
disposed between the rotation axis and the rib member;
a bearing unit surrounding an outer surface of the drum type rotation frame in a ring-like configuration; and
a drum type fixed frame configured to rotatably support the drum type rotation frame through the bearing unit.
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