Design of small size micromotor for intrabody medical devices

Details

Supervisors

Dehez, Bruno

Faculty

Ecole polytechnique de Louvain

Degree label

Master [120] : ingénieur civil électromécanicien, à finalité spécialisée: mécatronique

Abstract

This report studies the design of an intravascular heart pump. The aim is to obtain a medical device implanted by a non-invasive method that can provide sufficient blood flow for patients suffering from heart failure. To achieve this, the report is divided into several parts. It begins with a state of the art of heart pump technologies to clarify the task. It then proceeds to a conceptual design, proposing different solutions to address the various sub-problems. Finally, the design method leads to the dimensioning of the various parts that have been imagined in the previous stages. This stage is followed by the production of a prototype and validation of the concept. Our work has shown that it is feasible to assemble a motor that is routed into the artery in several pieces via a catheter. Moreover, this method significantly increases the efficiency compared to a single-piece motor implanted via the same catheter. Given the scale of the design, some parts have not been optimized. There is considerable scope for improvement in future research. In addition, it has been shown that high efficiency can be achieved with lower torque ratings, which should be investigated. However, a turbine should be designed with a rated torque to validate the overall design.