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pet imaging equipment

A technology of equipment and air inlet cavity, which is applied in the field of medical instruments, can solve the problems of dust and impurities being brought into the detector, and the cooling efficiency of the cooling system is low, so as to avoid ineffective heat exchange and improve the cooling efficiency

Active Publication Date: 2018-08-03
SHANGHAI UNITED IMAGING HEALTHCARE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention is designed to solve the problem of low cooling efficiency of the cooling system of the PET imaging equipment in the prior art and the problem that dust and impurities in the environment are easily brought into the detector

Method used

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Experimental program
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Embodiment 1

[0026] figure 1 is a schematic diagram of a rack according to the first embodiment; figure 2 is a perspective view of the rack according to the first embodiment. refer to figure 1 , figure 2 (The arrow indicates the flow direction of the cold air), in order to solve the problems in the prior art, the present embodiment provides a PET imaging device, comprising: a frame 10 defining a scanning channel 19; The edge of the channel 19 is sequentially fixed to a plurality of detector modules 20 on the frame 10; the cooling chamber 40 surrounding the detector module 20; the cooling machine 30; the air inlet chamber 11 communicating with the cooling chamber 40 and the cooling machine 30 respectively and the air return chamber 12, wherein the air inlet chamber 11 and the air return chamber 12 are arranged adjacently, and a temperature insulation layer is provided on the adjacent surfaces.

[0027] continue to refer figure 1 , the frame 10 is flat, including a circular scanning c...

Embodiment 2

[0036] image 3 is a perspective view of a rack according to a second embodiment; Figure 4 is a schematic diagram of a rack according to the second embodiment; Figure 5 is another perspective view of the rack according to the second embodiment. Different from Embodiment 1, in this embodiment, the air inlet cavity 11 and the return air cavity 12 form a co-plane 17 on the side close to the detector module (not shown), and the detector module is fixed on the co-plane 17, The air inlet 112 of the air inlet chamber and the air outlet 122 of the return air chamber leading to the cooling chamber 40 are arranged on the common plane 17 .

[0037] refer to Figure 5 , in this embodiment, the cooling chamber 40 surrounded by the annular cover plate 43 includes a plurality of partitions 44, and the partitions 44 divide the cooling chamber 40 into a plurality of sub-chambers according to the number of detector modules, each Each sub-chamber corresponds to a detector module, and each ...

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Abstract

The invention provides a PET imaging device which comprises a machine frame where a scanning channel is limited, a plurality of detector modules sequentially fixed to the machine frame on the machine frame along the edge of the scanning channel, a cooling chamber surrounding the detector modules, a cooler, an air inlet cavity and an air return cavity, wherein the air inlet cavity and the air return cavity are communicated with the cooling chamber and the cooler respectively; the air inlet cavity and the air return cavity are arranged adjacently, and a heat insulation layer is arranged on the adjacent surfaces. According to the PET imaging device, the detector modules are encircled through the cooling chamber, a cooling space is limited, the detector module cooling efficiency is improved, and a dustproof protective effect on the detector modules is achieved; the heat insulation layer is arranged between the air inlet cavity and the air return cavity, invalid heat exchange between the air inlet cavity and the air return cavity is avoided, and cooling efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to a PET imaging device. Background technique [0002] Existing medical imaging technologies include Single-Photon Emission Computed Tomography (Single-Photon Emission Computed Tomography, SPECT), Positron Emission Tomography (Position Emission Tomography, PET) and other technologies. Medical imaging systems such as SPECT and PET include a channel for accommodating patients, and detectors surrounding the human body are arranged in the channel, so that multi-angle imaging pictures of human lesion tissues can be obtained, and more accurate lesion information can be obtained. [0003] The principle of positron emission tomography (hereinafter referred to as PET imaging) technology is: a positron emitted when the positron beam decays combines with free electrons in human tissue to annihilate, and is converted into two gamma photons with opposite directions and energy of 511K...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B6/03
CPCA61B6/037A61B6/4488
Inventor 苏士刚
Owner SHANGHAI UNITED IMAGING HEALTHCARE