Emissive computed tomography
US4645933A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 29, 1983 |
| Grant date | Feb 24, 1987 |
| Priority date | — |
| Expiry date | Jul 29, 2003 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B6/4405
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A medical diagnostic system utilizing the principles of nuclear medicine is disclosed. The system includes a gantry having a detector support section supported by a carriage section located on a rail system for movement along a linear path. A nuclear detector is supported on a pair of weighted arms pivotally mounted on the detector support system about an axis perpendicular to the rail system. The detector is itself pivotally mounted near an end of the weighted arm pair for tilting rotation about an axis parallel to the arm pivot axis. Mechanism is provided for rotating the weighted arms additionally about an axis parallel to the rail system, in order to accomplish orbital motion of the detector. All three of these rotational movements are power actuated. A stationary pedestal and cantilevered patient support table is located between the rails of the rail system, with the patient table extending longitudinally with respect to the rails. The upper, or detector supporting section, of the gantry is additionally provided with a degree of freedom wherein it may be rotated about a vertical axis extending through the middle portion of the carriage system, thus disposing the detector for o…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.