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A stable wireless energy transmission system for gastrointestinal microsystems
1Institute of Precise Engineering & Intelligent Microsystems, Shanghai Jiaotong University, Shanghai, PR China. whxin@sjtu.edu.cn
Journal of Medical Engineering & Technology
|November 26, 2009
Summary
This study introduces a wireless power system for gastrointestinal microsystems, delivering stable energy regardless of device position. It achieves up to 310 mW of usable DC power, even in challenging conditions.
Area of Science:
- Biomedical Engineering
- Wireless Power Transfer
- Medical Devices
Background:
- Gastrointestinal microsystems require reliable power for in-vivo applications.
- Existing wireless power transfer systems face challenges with positional and orientational stability within the body.
Purpose of the Study:
- To develop and evaluate a wireless energy transmission system for stable power delivery to gastrointestinal microsystems.
- To ensure consistent power supply irrespective of the microsystem's location and orientation within the gastric tract.
Main Methods:
- Implementation of a wireless energy transmission system with an external Helmholtz primary coil and an internal 3-dimensional secondary coil.
- Testing the system's power delivery capabilities under various geometrical conditions simulating in-vivo scenarios.
Main Results:
- The system successfully transmits stable power to the gastrointestinal microsystem.
- Up to 310 mW of usable DC power was delivered, even under worst-case geometrical conditions.
- Measured data demonstrated the system's performance and reliability.
Conclusions:
- The developed wireless energy transmission system provides a robust solution for powering gastrointestinal microsystems.
- The system's ability to maintain stable power delivery enhances the potential for advanced in-vivo gastrointestinal diagnostics and therapeutics.
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