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Published on: June 23, 2022
Minimally invasive diagnostics and treatment using micro/nano machining
Yoichi Haga1, Tadao Matsunaga, Wataru Makishi
1Tohoku University Biomedical Engineering Research Organization (TUBERO), Sendai, Japan. haga@cc.mech.tohoku.ac.jp
Summary
Advanced microfabrication techniques enable the creation of tiny medical tools for minimally invasive diagnostics and therapy. These microsensors and therapeutic tools promise safer, more precise medical interventions.
Area of Science:
- Biomedical Engineering
- Microsystems Engineering
Background:
- Minimally invasive medical tools are crucial for diagnostics and treatment.
- Microfabrication techniques, including MEMS, are key to developing miniaturized medical devices.
Purpose of the Study:
- To highlight advancements in microfabrication for minimally invasive medical tools.
- To showcase novel microsensors and therapeutic tools for in-body applications.
Main Methods:
- Development of ultra-miniature pressure sensors and intravascular ultrasonic imagers.
- Engineering of active bending catheters for improved catheter tip steering.
- Creation of ultrasonic therapeutic tools for sonodynamic therapy and sonoporation.
- Design of micro scanners for precise laser treatments.
Main Results:
- Successful development of microsensors for in-body diagnostics.
- Successful development of active bending catheters for enhanced maneuverability.
- Successful development of therapeutic tools for advanced treatments.
- Demonstration of microfabrication's role in creating multifunctional, miniaturized medical devices.
Conclusions:
- High-functionalized endoscopic tools and catheters enhance diagnostic and therapeutic precision and safety.
- These advancements enable novel medical procedures previously not possible.
- Microfabrication is pivotal for the future of minimally invasive medicine.

