Support unit, support device, and emission tomography device using support device

A support device for an emission tomography device, characterized in that it comprises:

• a plurality of support units, wherein the plurality of support units are arranged side by side along the axial direction of the accommodation space, and the accommodation space forms an accommodation chamber for accommodating detectors and a detected object, each of the plurality of support units comprising:
• a support body, provided with an accommodation space running through the support body therein, wherein the support body comprises a plurality of support positions that are distributed along a circumferential direction of the accommodation space;
• a plurality of fastening means, connected to at least a portion of the plurality of support positions, for fixing detectors of the emission tomography device, wherein at least a portion of the plurality of fastening means are movable between contraction positions and extension positions along radial directions of the accommodation space,
• wherein the fastening means are used for forming a first detector fastening ring with a first diameter when at the contraction positions and forming a second detector fastening ring with a second diameter which is smaller than the first diameter when at the extension positions.

An emission tomography device, characterized in that it comprises:

• a support device, comprising a plurality of support units, wherein the plurality of support units are arranged side by side along the axial direction of the accommodation space, and the accommodation space forms an accommodation chamber for accommodating detectors and a detected object;
• and
• a detector, fixed to the fastening means within the accommodation chamber,
• wherein each of the plurality of support units comprises:
• a support body, provided with an accommodation space running through the support body therein, wherein the support body comprises a plurality of support positions that are distributed along a circumferential direction of the accommodation space;
• a plurality of fastening means, connected to at least a portion of the plurality of support positions, for fixing detectors of the emission tomography device, wherein at least a portion of the plurality of fastening means are movable between contraction positions and extension positions along radial directions of the accommodation space,
• wherein the fastening means are used for forming a first detector fastening ring with a first diameter when at the contraction positions and forming a second detector fastening ring with a second diameter which is smaller than the first diameter when at the extension positions.