| 摘要 |
An Automatic Fluid Delivery System (ADDS) and method for disinfecting dental or medical unit water delivery lines (DUWL) is disclosed. The automatic timing and sequencing of the disinfection process is provided by a programmable microprocessor employing integrated circuits in a Control Module (10). The treatment solution (22) and rinse medical grade water (21) are contained in bottles of a Bottle Assembly (20), the flow from which is controlled by the microprocessor actuated pneumatic valves, and fluid connection to the dental unit is direct. Other control valving is contained in a Unit Module (30). The use of pinch valves and equal pressurization of the bottles prevents retraction (suck back) of contaminants. The dental unit is made inoperative and locked-out while the ADDS is in operation, and until the DUWLs have been finally purged by water. The ADDS may be retrofit on present dental units or integrated therewith, and used with any device employing consumable water or aqueous solution delivery lines, such as refrigerators, coffee makers, water filtration or treatment systems, food or drink preparations, and the like.
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