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首页> 美国政府科技报告 >Optimal Control of a Network of Whole Blood Banks: Target Inventory Levels for a Hospital Blood Bank or a Decentralized Regional Blood Banking System
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Optimal Control of a Network of Whole Blood Banks: Target Inventory Levels for a Hospital Blood Bank or a Decentralized Regional Blood Banking System

机译：全血银行网络的最优控制：医院血库或分散区域血库系统的目标库存水平

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摘要

In a recent paper by Brodheim, Hirsch and Prastacos (1976), curves relating recommended whole blood/red cell inventory levels and mean daily demand were developed for various specified shortage rates. This paper extends their analysis to establish a simple decision rule which yields the optimal inventory level for each blood type as a function of various factors in the blood bank environment. In using this rule it is not necessary for the blood bank administrator to choose a shortage rate for system operation since the inventory level recommended by the rule reflects the optimal trade-off between shortages and outdates. The elimination of the requirement to pick and justify a shortage rate exclusive of other system outcome measures greatly simplifies the administrator's decision problem. For any given inventory level it is possible to compute the anticipated shortage rate when operating at that level. In the cases studied, it is shown later in the paper that when using the inventory level obtained from the optimal decision rule, the 'implicit' shortage rate is near .001 for large volume blood types and .01 for rarer or small volume types. On the other hand, the outdate rate is shown, in general, to be quite sensitive to certain specific factors in the blood bank management and environment (age of supply, transfusion to crossmatch ratio, and the crossmatch release period). Depending on these factors, the rule yields outdate rates which vary from .001 to .07.

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