Design and investigation of bladder power pump driven by an external electromagnet

This study aims to evaluate the feasibility of the bladder power pump driven by an external electromagnet proposed by the authors. The structure of the pump was designed based on its working principle. The mathematical model and 3D finite element model of the electromagnetic field of the pump were established. The electromagnetic driving property of the pump was analyzed using the models, and the micturition performance of the pump was investigated in the simulated experimental system. Results show that maximum intravesical pressure and maximum urine flow rate reached 10.8 KPa and 13.9 cm³ /s, respectively, approaching the normal human urodynamic parameters. This novel pump has the potential of being used for assisting neurogenic bladder micturition.