Abstract
The current implantable VADs target patients with a body surface area of 1. 4m²or above, generally addressing individuals aged around 12yearsand older among the Japanese population. In contrast, the pediatric VAD in the previous study was designed for implantation in children aged 1-6 years. Developing an implantable VAD that can be used from 1 to 12 years of age aims to reduce the number of VAD implantations, thereby alleviating the burden for patients. Therefore, the objective of this study is to develop a pediatric implantable VAD that can be used from1 to 12 years of age. To achieve this broader age range, it is necessary to increase the flow rate and outlet pressure without raising the upper limits of pump volume and impeller rotation speed. Considering these factors, this study is a fluid analysis for the development of a magnetically levitated centrifugal pump with a newly designed impeller and pump, with the aim of increasing the flow rate and outlet pressure suitable for children aged 1 to 12 years.
