Two-Bin Kanban: Ordering Impact at Navy Medical Center San Diego
Naval Postgraduate School Monterey United States
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One of the most important aspects of hospital administration is the medical consumable inventory process. The Navy Bureau of Medicine and Surgery BUMED hopes to improve the medical inventory process across the Navy Medicine enterprise with a new lean medical inventory system called two-bin Kanban. In 2014, BUMED implemented two-bin Kanban inventory systems in 22 Navy military treatment facilities MTFs. This project analyzes the efficiency and effectiveness of the two-bin Kanban inventory system in three departments at Navy Medical Center San Diego NMCSD.In this evaluation, over 163,000 medical consumable transactions worth a net value of 1.6 million were analyzed across two years 2013 and 2015. Inventory ordering patterns, cost savingsavoidance, and cost per relative value unit RVU are a few analyses that were conducted to determine what impact, if any, two-bin Kanban had on the Gastroenterology, Urology, and Oral Maxillofacial Surgery OMFS departments at NMCSD. The data is statistically significant in 2015 when compared to 2013. Procurement order costs decreased and procurement order efficiency improved across all departments. However, given the nature of the observations and the existence of other process improvement efforts, this research is unable to confirm if the two-bin Kanban was the cause for the performance improvements.