การปรับปรุงประสิทธิภาพการดำเนินงานในคลังเก็บยาของโรงพยาบาลมหาราชนครเชียงใหม่

Abstract

Pharmaceutical inventory plays one of the significant roles involved in hospital operations. However, the limitation of inventory space causes the complexity of inventory control. Therefore, the purpose of this research is to improve the efficiency of Maharaj Nakorn Chiang Mai Hospital’s Pharmaceutical Inventory. The principle of ABC-VED Classification is applied in this research to prioritize the medicine inventory. The medicines from group I 10 items out of 1,365 items are used to be samples for show calculation the optimal number of inventory. The optimal number is defined by using the equation of Economic Order Quantity (EOQ), Safety Stock (SS), and Reorder Point (ROP). The result of the developed models can reduce the total cost by 19.94%, medicine shortages and the number of expired medicine. Moreover, about working process improve the efficiency part, the principle of simulation, Value Stream Mapping (VSM), Lean management and Visual control is applied in this research. Participle of ABC Classification is applied to prioritize the highest demand level of medicine for reorganize space in inventory. In addition, simulation working process by ARENA is used to minimize working distance and working time. The result of the developed models can reduce total working time from actual situation by 7.34%.