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此处所谓液化,是指将固体粉末或颗粒转化为像液体那样流动的过程。这在工业上已运用多年。六十年代引进医学,诞生了第一批为数不多的液化床(Fluidised-bead bed),用于褥疮预防,本文介绍的这张液化床正在急症重病区(ITU)使用。原理和设计液化床的大小和外形与普通床相似,由长195厘米,宽70厘米,深35厘米的玻璃纤维大容器构成上部,多孔的底部联接一抽送过滤热空气的较小容器,
Liquefaction, as used herein, refers to the process of converting a solid powder or granule into a fluid like liquid. This has been used in industry for many years. The introduction of medicine in the 1960s led to the birth of the first fluidized-bead beds for decubitus prevention. The liquefaction bed described in this paper is being used in the Emergency Medicine for the Acute and Critical Diseases (ITU). Principle and Design The size and shape of the liquefaction bed are similar to that of the ordinary bed. The liquefaction bed is composed of an upper glass fiber container measuring 195 cm in length, 70 cm in width and 35 cm in depth. A perforated bottom is connected with a smaller container for pumping hot filtered air,