Gantry tilt and support assembly for CT scanner

Details Gantry tilt and support assembly for CT scanner Gantry tilt and support assembly for CT scanner

1988-11-25

1990-05-22

Church, Craig E.

X-ray or gamma ray systems or devices

Specific application

Computerized tomography

378 4, H05G 160

Patent

active

049282921

ABSTRACT:
A computerized tomographic scanning apparatus comprises a gantry assembly for performing tomographic examination and including a detector and data acquisition assembly carried on a first frame for selective rotation about a first axis. A base frame supports the first frame for limited tilting movement about a second axis which lies in a plane generally perpendicular to the first axis. A selectively operable drive assembly for tilting the gantry assembly about the first axis comprises first and second extensible and retractable rotary drive screw assemblies connected between the first frame and the second frame at locations spaced laterally outwardly on opposite sides of the first axis. Each drive screw assembly includes a first end connected to the base frame and a second end connected to the first frame at a point radially outwardly of the second axis. Electric motor and control units are provided for producing simultaneous operation of the first and second drive screw assemblies for producing controlled tilting movement of the first frame about the second axis. Also, the control units includes controls for deenergizing the electric motors if either of the drive screw assemblies fails to operate when its respective electric motor is energized.

REFERENCES:
patent: 4088888 (1978-05-01), Brook et al.
patent: 4093861 (1978-06-01), Kelman et al.
patent: 4093862 (1978-06-01), Brandt et al.
patent: 4750195 (1988-06-01), Takahashi
patent: 4983860 (1978-06-01), Kelman et al.

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