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Erscheinungsjahr: 
2024
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[Journal:] Health Care Management Science [ISSN:] 1572-9389 [Volume:] 27 [Issue:] 2 [Publisher:] Springer US [Place:] New York [Year:] 2024 [Pages:] 168-187
Verlag: 
Springer US, New York
Zusammenfassung: 
Abstract We present a new model formulation for a multiproduct dynamic order quantity problem with product returns and a reprocessing option. The optimization considers the limited shelf life of sterile medical devices as well as the capacity constraints of reprocessing and sterilization resources. The time-varying demand is known in advance and must be satisfied by purchasing new medical devices or by reprocessing used and expired devices. The objective is to determine a feasible procurement and reprocessing plan that minimizes the incurred costs. The problem is solved in a heuristic manner in two steps. First, we use a Dantzig-Wolfe reformulation of the underlying problem, and a column generation approach is applied to tighten the lower bound. In the next step, the obtained lower bound is transformed into a feasible solution using CPLEX. Our numerical results illustrate the high solution quality of this approach. The comparison with a simulation based on the first-come-first-served principle shows the advantage of integrated planning.
Schlagwörter: 
Sterile service department
Material logistics in hospitals
Reusable medical devices
Procurement
Reprocessing
Limited shelf life
Column generation
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