Cytogenetic study of families with habitual abortions

This article introduces a simple coordination system for two or more infusion liquids. Solutions drip down one after the other in a continuous flow, with no attendance required, two or more infusion containers being connected in a way described below. There is no intermingling of solutions when using non-rigid containers, and only a slight one when using glass or plastic material. The check valves work through the pressure exerted by the columns of liquid, the containers being placed on different levels. The essential advantages are: less discomfort and less danger for patients and staff. The system can be used for a washing drainage.