Improvements in or relating to a method of and device for embedding dehydrated tissue specimens in paraffin

摘要

Dehydrated tissue specimens are immersed in liquid paraffin wax in container 10 which is evacuated by vacuum pump. The maximum vacuum is only achieved after a predetermined period of time, determined by a controller which can control the speed of the motor of the pump. Thus any dehydration medium, e.g. acetone, in the specimen will be sucked off at a low pressure minimising the risk of bubbles forming in the sample or in the paraffin. The paraffin wax is heated by water bath 16. IMAGE