Model HTM Application in Failure Analysis for Air Compressors in the Dental Service of Primary Health Care

This study presents a failure cause analysis in medical air compressors in dental services of primary health care in Santa Catarina, Brazil. The study classifies failures, from 2007 to 2016, associated with the three domains of the methodology developed for HTM: Human Resources (DHR), Infrastructure (DI) and Technology (DT). From these failures, 58% were associated to DT, 31% to the HRD and 11% to the DI. Data collection was from the HTM Information System of the IEB-UFSC CE and the application of HFMEA. This analysis identifies which failures are related to wear of parts due to their life cycle in DT. In the DI, the causes were the lack of electrical protection and inadequate electrical wirings with manufacturers and technical standards. In DHR, the lack of a manual purge procedure is a cause of failure. As a result, a checklist for functional equipment verification was implemented during the CE technical inspection, which identifies fault conditions and associated domains. For DT, a preventive maintenance program was implemented to replace oil and shorter its service life. In order to reduce the failures associated to the DI, adjustments were made in the compressor shelters with installation of electrical protection and resizing of the electrical system. For the failures associated with the DHR, didactic materials were developed for training with a proposal to improve operational routine, best practices and an installation program of automatic purger in units of greater demand for dental service. The results of these actions led to a reduction in the occurrence of failures and validated the application of HTM model developed for Primary Health Care is important contribution for add quality to primary health care system.