Efficiency optimization of wireless power transmission systems for active capsule endoscopes

Area of Science:

• Biomedical Engineering
• Electrical Engineering
• Medical Devices

Background:

• Active capsule endoscopes (ACEs) are crucial for minimally invasive diagnostics but face power limitations.
• Wireless power supply is a promising solution to overcome the energy shortage in ACEs.
• Existing wireless power systems for ACEs often lack efficiency optimization under practical constraints.

Purpose of the Study:

• To optimize the efficiency of wireless power supply systems for multipurpose active capsule endoscopes.
• To develop a mathematical model that incorporates size and safety constraints for efficiency optimization.
• To provide a framework for designing efficient transmitting and receiving coils for wireless power transfer in ACEs.

Main Methods:

• Developed a mathematical programming model to optimize wireless energy transfer efficiency.
• Incorporated critical constraints such as device size and operational safety into the model.
• Utilized a wireless active capsule endoscope as a case study to validate the proposed optimization approach.

Main Results:

• The proposed mathematical model successfully identified optimal parameters for transmission efficiency, frequency, and current.
• The study demonstrated a method for efficiency optimization of wireless power supply systems under size and safety constraints.
• Achieved efficiency served as a key performance index for evaluating the wireless power system.

Conclusions:

• The developed approach offers a viable strategy for enhancing the efficiency of wireless power systems for active capsule endoscopes.
• The mathematical model and optimization methodology can guide the design of improved transmitting and receiving coils.
• This work contributes to overcoming the energy limitations of capsule endoscopes, paving the way for more advanced applications.