Scanning Micromirror Platform Based on MEMS Technology for Medical Application.

Area of Science:

• Biomedical Engineering
• Microelectromechanical Systems (MEMS)
• Robotics

Background:

• Scanning micromirrors are crucial for precise manipulation in limited biomedical volumes.
• Microelectromechanical systems (MEMS) provide the foundation for fabricating these advanced devices.
• Biomedical micro-robots leverage scanning micromirror technology for enhanced functionality.

Purpose of the Study:

• To review recent developments and trends in scanning micromirrors for biomedical applications.
• To explain the fundamental principles, mechanisms, and actuation of MEMS-based scanning micromirrors.
• To provide a guideline for selecting micro-actuators based on fabrication processes and materials.

Main Methods:

• Discussion of various actuator types: electrothermal, electrostatic, electromagnetic, pneumatic, and shape memory alloy.
• Explanation of microfabrication processes and common materials for MEMS devices.
• Description of testing methodologies and examples for scanning micromirrors.

Main Results:

• Recent advancements have significantly improved the resolution, accuracy, and dexterity of scanning micromirrors in biomedical applications.
• Various actuation principles and fabrication techniques are detailed, offering insights into device design.
• The review highlights the performance enhancements achieved through different actuator types.

Conclusions:

• MEMS-based scanning micromirrors offer substantial advantages for medical applications, including small size, high speed, and low power consumption.
• Further development in integration and control schemes will unlock even greater potential for these devices.
• These technologies are poised to revolutionize precision tasks in medicine due to their inherent compatibility and stability.