The
blood inventory management methods focus either onblood bank or on
hospitals. For instance, Keilson andSeidmann [5] mainly studied on the
single perishable inventorysystem of the blood bank and established the
formulas for thewastage rate, the shortage rate and the average age of
issues inthe blood bank under the first-in-first-out policy in 1990.
AndNahmias [3] proposed a novel model about perishableinventory of blood
bank management based on single systemof blood bank as well. Code Shoppy Zhou et al. [1] and Prastacos [4] studiedsingle level inventory models for perishable items in hospitalonly.
And
in 2009, Song and Zipkin [6] studied the optimalinventory stocks in the
blood supply chain which utilizedregular replenishment and expedited
replenishment, focusingon hospital as a single system. https://codeshoppy.com/shop/product/hospital-management-mobile-app/ Furthermore,
there are a fewstudies that researched the two echelon inventory
system. In2014, Abbasi and Seidmann [7] built a model obtained
theoptimal distribution policies of the two echelon supply
chainconsisting of the blood bank and hospital. What’s more,Zahra
Hosseinifard and Babak Abbasi [8] proposed the novelmethods on the
traditional two echelon blood supply chaininventory management by
centralizing the inventory of severalhospitals that are close proximity
from each other under oneblood bank in 2016, which is the only research
that consideredthe centralization of the blood inventory among hospitals
in atwo echelon system with stochastic replenishment andperishable
items to the best of our knowledge. There areplentiful researches
related to the optimal policies on how tomanage the inventory and
allocation between hospital andblood center. However, we have not found
researches focusingon the allocation among departments within a
hospital.The integer programming models for blood inventorymanagement
were developed by Jacobs in 1984 [9]. Jacobsbuilt two integer
programming models to provide insights intothe current scheduling
activities of blood collections anddistributions. The integer
programming models worked out theoptimal policies on how to allocate
blood items from the bloodbank to the hospitals, as well as the setting
of blood productsinventory. Ghandforoush and Sen [10] raised a model
with theobjective of minimizing total system cost containingproduction,
transportation, testing and matching in a regionalblood center in 2010.
Besides, in 2015 Serkan Gunpinar [2]and Grisselle Centeno developed an
integer programmingmodel aiming at minimizing both total operational
cost andtotal risk function. From then on, there are a large amount
ofmodels incorporate different characteristics of blood supplychain and
indicate variety of objective functions and solvingmethods.By far, we
have not found researches on how to distributeblood products among
different departments in hospital, thoughthe problem of blood shortage
and wastage that caused byimproper blood allocation is severe. In this
essay, weinvestigate the allocation approach with the novel
managementmethod by centralizing the inventory of several
differentdepartments, by which the shortage of blood in somedepartments
could be supplied by the wastage in otherdepartments. Furthermore, we
develop an integer programmingmodel aiming at minimizing the total cost,
constituted ofshortage cost and wastage cost to work out the
optimalinventory and allocation methods of blood products.
Minimizing
both wastage and shortage as well as reducingthe age of blood items are
targets of blood inventorymanagement. In this research, we reshuffled
the construction ofblood inventory by centralizing some departments’
blooddemand and built a model to work out the optimal bloodallocation
network scheme. Our work has an effective impacton the total cost and
the performance measures. The result ofnumerical study revealed that the
inventory centralizationreduces the shortage and the wastage in
hospital remarkably.And to some extent, it assures the freshness of
blood. In thisessay, we attained the optimal blood allocation
networkscheme and the optimal inventory setting for every
departments.Studying the methods of integrating the blood
inventoryrequirements of some departments in hospital and consideringthe
priority in blood distribution inside the centralized groupare
recommended for future research.
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