Estudo de falhas aplicado em equipamentos de diagnósticos por imagem

Abstract

Diagnostic imaging equipment has high added value, being generally the machines with the highest investment for clinics and hospitals, having high complexity and operating and maintenance costs. Thus, clinics and hospitals need maximum availability of this equipment to compensate for such investments. Thus, unscheduled stops due to unforeseen failures can be catastrophic for the operation, generating bottlenecks in exam schedules and high costs related to maintenance services. The applications of the tools contained in the failure analysis technique can help to identify the root causes that cause downtime. The present work aims to develop a study of RCA (Root Cause of Failure Analysis) in medical imaging diagnostic equipment. There are several methods to achieve this goal, such as: RCM, FTA, 5 whys, FEMEA, etc. The research carried out aimed to describe, explain and classify the occurrence of failures through the records of maintenance calls for diagnostic imaging equipment, to achieve this purpose, the tools considered the best to organize the information contained in the records were the following: histogram, 5W + 2H, GUT, Ishikawa, 5 Whys and Fault Tree Analysis (FTA). The period of application of the selected techniques was 1 year, and its purpose was to organize the information, and thus raise the main root causes of failures. After analyzing the results obtained, it was possible to raise 10 basic events that led to failures (root causes of failures) and also to suggest possible actions to minimize the occurrences of failures.