A Novel Artificial Detrusor System and Preliminary Experimental Study
1School of Electromechanical Engineering, Guangdong University of Technology, Guangzhou, China.
Artificial Organs
|October 8, 2025
Summary
A new artificial detrusor system using shape memory alloy (SMA) springs and transcutaneous energy transfer (TET) shows promise for treating neurogenic bladder. The system successfully induced bladder voiding in animal studies, offering a simpler design for future assistive solutions.
Area of Science:
- Biomedical Engineering
- Materials Science
- Urology
Background:
- Neurogenic bladder significantly impacts quality of life and poses health risks.
- Current treatments for neurogenic bladder are limited and often ineffective.
- Existing artificial detrusor systems face challenges in structural complexity and biomechanical compatibility.
Purpose of the Study:
- To develop a novel artificial detrusor system for neurogenic bladder.
- To mimic physiological urine storage and voiding mechanisms.
- To overcome limitations of current artificial detrusor designs.
Main Methods:
- Designed an artificial detrusor system utilizing shape memory alloy (SMA) springs.
- Implemented transcutaneous energy transfer (TET) for wireless power.
- Evaluated system performance through simulations and animal studies.
Main Results:
- Excitation voltage, SMA specifications, and energization duration affected voiding rate and temperature.
- The prototype successfully induced bladder voiding in animal models.
- Demonstrated the feasibility of SMA-driven actuation and TET.
Conclusions:
- Presents a promising artificial detrusor system for neurogenic bladder.
- The system offers a simple structure and feasible working principle.
- Provides a new technical pathway for assistive solutions for neurogenic bladder dysfunction.
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