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Effectiveness Evaluation of Displacement Accommodatable Pressure Measuring Jig for Quality Assessment of Pressure Application Device  

Mun, Chang-Su (Affiliated Research Institute, KMG(KuMyoung))
Jun, Sung-Chul (Senior Products Industrial Center, Busan Technopark)
Noh, Si-Cheol (Affiliated Research Institute, KMG(KuMyoung))
Publication Information
Journal of the Institute of Convergence Signal Processing / v.21, no.2, 2020 , pp. 61-66 More about this Journal
Abstract
Recently, a variety of electric anesthetics devices have been developed and used in clinical practice to reduce the fatigue of the operator during local anesthesia for dental procedures and to compensate for the disadvantages of manual anesthesia device. In this electric anesthesia injection device, the accurate and constant delivery of pressure for drug infusion is a very important performance factor. In order to evaluate the accuracy of the transfer pressure, a small pressure gauge using a load cell is often used, but since the elastic body inside the load cell may not be able to accommodate a sufficient displacement, an error may occur when evaluating pressure performance. For these reasons, in this study, we proposed and evaluated a silicon-chrome steel (Si-Cr steel) spring jig that can accommodate relatively large displacements that can be used when evaluating the performance of a pressure-controlled pressure application device using a load cell type pressure gauge. As a result of the pressure transmissibility test and repeated measurement results using a commercial dental anesthesia injection device, a more stable result was obtained when using a spring jig, and it was confirmed that the frequency of abnormally high measurement was reduced.
Keywords
Pressure measurement jig; Displacement acceptance; Quality control; Assessment tool; Dental Anesthesia device;
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