Medical device maintenance strategy for post pandemic: case on ventilators

dc.authorid0000-0002-1150-7064
dc.contributor.authorAksezer, Sezgin Çağlaren_US
dc.date.accessioned2026-01-06T07:21:43Z
dc.date.available2026-01-06T07:21:43Z
dc.date.issued2022-06
dc.departmentIşık Üniversitesi, Mühendislik ve Doğa Bilimleri Fakültesi, Endüstri Mühendisliği Bölümüen_US
dc.departmentIşık University, Faculty of Engineering and Natural Sciences, Department of Industrial Engineeringen_US
dc.description.abstractEquipment-demand of healthcare providing institutions increased drastically during the Covid-19 pandemic. While majority of the demand (also the most publicized) has been occurring for disposable products such as masks, gloves, gowns, sterilizers, and test kits; the demand for electronic devices also increased during the initial waves of the pandemic but dropped afterwards as it was satisfied by the manufacturers. Since devices like vital monitors, dialysis systems, and ventilators are not single use products, handling of such systems after acquisition has become an issue of operations management for healthcare professionals. Utilization of such devices seem to have a cyclic behavior correlated with pandemic waves (as the hospitalizations peak so the usage and vice versa) and tend to have a longterm decreasing trend as the Covid-19 pandemic transforms to epidemic. Ventilators have found extensive usage in the treatment of Covid-19 related patients for ICU and emergency admissions. Medical ventilator device provides mechanically simulated air into the lungs of patients who are completely unable to breathe by themselves or breathes but insufficient to carry the necessary oxygen. So, the total functionality is crucial and service readiness is imminent. Number of active ventilators in Turkey increased to 22.000 units by the first year of the pandemic. However, utilization ratio of ventilators dropped to 29.6% (as of March 17, 2022) from the heights of 55% observed in the winter of 2021. Because of such decline, devices have become idle or operational times have dropped significantly. Health institution under investigation is a full-service government hospital operating in the city of Istanbul, Turkey. There are currently 142 ventilators in the hospital with less than 35% utilization. Maintenance task is only carried out by manufacturer approved service providers and parts are supplied from abroad. Since the operator of devices is a non-profit government hospital, maintenance outsourcing is done by bidding with strict budget and usually under the pressure of currency exchange rates even after the maintenance contract is signed. Failure analyses indicate mean time to failure of devices has not changed significantly with respect to pre-pandemic operation. Periodic maintenance strategy that has long been adopted for such devices has been modified to consider cyclic operation, extended standby durations, and lead time of spare parts. Further proposals are under consideration for group maintenance involving multiple healthcare institutions.en_US
dc.description.versionPublisher's Versionen_US
dc.identifier.citationAksezer, S. Ç. (2022). Medical device maintenance strategy for post pandemic: case on ventilators. Paper presented at the 7th North American International Conference on Industrial Engineering and Operations Management, 400-400. doi:https://doi.org/10.46254/NA07.20220118en_US
dc.identifier.endpage400
dc.identifier.isbn9781792391583
dc.identifier.issn2169-8767
dc.identifier.startpage400
dc.identifier.urihttps://hdl.handle.net/11729/6875
dc.identifier.urihttps://doi.org/10.46254/NA07.20220118
dc.institutionauthorAksezer, Sezgin Çağlaren_US
dc.institutionauthorid0000-0002-1150-7064
dc.language.isoenen_US
dc.peerreviewedYesen_US
dc.publicationstatusPublisheden_US
dc.publisherIEOM Society Internationalen_US
dc.relation.ispartof7th North American International Conference on Industrial Engineering and Operations Managementen_US
dc.relation.publicationcategoryKonferans Öğesi - Uluslararası - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectMaintenanceen_US
dc.subjectHealthcareen_US
dc.subjectCovid-19en_US
dc.subjectPandemicen_US
dc.subjectInstitutionsen_US
dc.titleMedical device maintenance strategy for post pandemic: case on ventilatorsen_US
dc.typeConference Objecten_US
dspace.entity.typePublicationen_US

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