EQUIPMENT SETS AND SYSTEMS FOR THE SEQUENTIAL ADMINISTRATION OF MEDICAL LIQUIDS AT DUAL FLOW RATES

摘要

Systems and by gravity flow devices permit the sequential administration of medical liquids and a first source (11) may be administered to an independent speed of flow of the flow rate from a second source (13) and comprise a barrier (47) substantially impermeable to air which prevents the introduction of air inadvertently when the second source (13) is exhausted. The air barrier may consist of either a hydrophilic membrane (45) by a valve mechanical float (65) by a barrier on the diaphragm (241).