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评价一台功能仪器的好坏,从设计角度看,关键在于准直器的性能如何。铅准直探头设计是否合理关系到探测结果是否准确。当然整机的电气性能、数据处理功能和机械结构也是十分重要的。 我们在研制FT-619型肾图仪的过程中,曾对国内外部分产品进行了一系列试验,不断改进设计,尤其是铅准直探头的设计。通过与联邦德国西门子公司生产的肾图仪的铅准直探头对比测试,样机临床试用,证明我们研制的产品效果良好,达到了国内同类产品的先进水平。下面就肾图仪设计中应考虑的一些问题进行讨论。
Evaluation of a functional instrument is good or bad, from the design point of view, the key is how the collimator performance. Lead collimation probe design is reasonable whether the detection results are accurate. Of course, the electrical performance of the machine, data processing functions and mechanical structure is also very important. In the process of developing the FT-619 Renograph apparatus, we conducted a series of tests on some products at home and abroad to continuously improve the design, especially the design of lead collimation probe. By comparing with the lead collimation probe of Render Tester produced by Siemens of the Federal Republic of Germany, the clinical trial of the prototype proves that the product we developed has a good effect and has reached the advanced level of similar domestic products. Here are some of the issues that should be considered in the design of the renderer.