论文标题
用于协调医院库存管理和材料处理的离散事件模拟模型
A Discrete Event Simulation Model for Coordinating Inventory Management and Material Handling in Hospitals
论文作者
论文摘要
对于手术室（OR）和医院，围手术期服务的手术工具和物质处理决策的库存管理对于医院的服务水平和成本至关重要。但是，由于医院的相互依存和他们所面临的不确定性，有效地整合这些决定是具有挑战性的。这些挑战促使这项研究的发展回答以下研究问题：（R1）包括拥有，借用和托运在内的手术工具的库存水平如何影响ORS的效率？ （R2）物质处理活动如何影响OR的效率？ （R3）整合有关库存和材料处理的决策如何影响ORS的效率？这里开发了三个离散事件模型，以解决这些问题。模型1，当前，不假定对材料处理和库存决策的协调。模型2，两批，假定部分协调和3模型（JIT）假定完全协调。使用合作医院的现实生活数据对这些模型进行验证和验证。彻底的数值分析表明，通常，对手术工具和物质处理决策的库存管理的协调有可能提高效率并降低或成本。更具体地说，用于短期手术中使用的工具的JIT交付会导致库存水平较低，而不会危害提供的服务水平。
For operating rooms (ORs) and hospitals, inventory management of surgical instruments and material handling decisions of perioperative services are critical to hospitals' service levels and costs. However, efficiently integrating these decisions is challenging due to hospitals' interdependence and the uncertainties they face. These challenges motivated the development of this study to answer the following research questions: (R1) How does the inventory level of surgical instruments, including owned, borrowed and consigned, impact the efficiency of ORs? (R2) How do material handling activities impact the efficiency of ORs? (R3) How do integrating decisions about inventory and material handling impact the efficiency of ORs? Three discrete event simulation models are developed here to address these questions. Model 1, Current, assumes no coordination of material handling and inventory decisions. Model 2, Two Batch, assumes partial coordination, and Model 3, Just-In-Time (JIT), assumes full coordination. These models are verified and validated using real life-data from a partnering hospital. A thorough numerical analysis indicates that, in general, coordination of inventory management of surgical instruments and material handling decisions has the potential to improve the efficiency and reduce OR costs. More specifically, a JIT delivery of instruments used in short-duration surgeries leads to lower inventory levels without jeopardizing the service level provided.
