PET-CT equipment and travel mechanism of barrier

Abstract

The invention discloses PET-CT equipment and a travel mechanism of a barrier, wherein the disclosed travel mechanism comprises a frame for supporting the barrier and a guide rail arranged on the frame and extending in the axial direction; the barrier is capable of moving along the guide rail; the travel mechanism further comprises a driving device for driving the barrier to move; and the driving device is directly arranged on the frame. The driving device of the travel mechanism is directly arranged on the frame; as a result, the driving device can be basically located in the space between the solid part of the frame and the guide rail without increasing the axial length of the whole travel mechanism; and the axial length of the whole travel mechanism can be basically controlled to be the sum of the axial lengths of the frame and the guide rail so that the axial space is thoroughly utilized. Compared with the scheme of arranging the driving device in the axial direction on the basis of the end portion of the guide rail in the background art, apparently, the scheme of directly arranging the driving device on the frame is capable of obviously reducing the integrated length of the travel mechanism; therefore, the distance between the PET machine and the CT machine is reduced.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a PET-CT device and a moving mechanism of a barrier. Background technique [0002] PET-CT equipment is a device that integrates a PET machine and a CT machine. The PET machine scan provides detailed molecular information such as the function and metabolism of the lesion, while the CT machine scan can provide the precise anatomical location of the lesion, and one imaging can obtain whole body information. The tomographic images in all directions are characterized by sensitivity, accuracy, specificity and precise positioning, so as to achieve the purpose of early detection of lesions and diagnosis of diseases. [0003] Please refer to Figure 1-2 , figure 1 It is a schematic diagram of the structure of the barrier located inside the PET-CT equipment; figure 2 for figure 1 Schematic diagram of the axial movement of the middle grille to another position. [0004] fig...

AI Technical Summary

Problems solved by technology

From the perspective of mechanical structure realization, it is obviously very difficult to ensure the consistency of the position of the object before and after the movement and the high accuracy of repeated positioning at any point over a long distance; in addition, when the switching distance is large, the length and extension of the bed board itself The distance going out will be relatively long, forming a longer cantilever, which will have an extremely adverse effect on the bearing capacity of the bed support system, that is, under the same load condition, the bed support system must be stronger, which adds greater difficulty to the design of the support system

[0009] It can be seen that the driving device of the moving mechanism of the grille 15 is as follows: Figure 3-4 When setting, the distance between the PET machine and the CT machine is increased, resulting in poor fusion effect and distortion of the scanned image, and increasing the design difficulty of the scanning bed support system

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