The research team led by Professor Hiroshima Yuji from the Faculty of Engineering at the University of Japan has made a groundbreaking advancement with the development of the world's smallest ultra-sensitive tactile sensor. This innovative device holds great promise for revolutionizing medical technology, particularly in the field of minimally invasive surgeries and robotic-assisted procedures.
The sensor incorporates a spiral-shaped carbon coil, measuring between 1 to 10 micrometers in diameter and 300 to 500 micrometers in length, acting as a spring within a synthetic resin block that is approximately 0.1 mm³ in size. When this micro-coil comes into contact with an object, it can detect even the slightest changes in pressure and temperature, converting them into precise electrical signals. Moreover, the sensor is capable of identifying more complex interactions such as "screw" movements and "friction," making it highly versatile.
According to Professor Yuandao, the new sensor offers significantly higher sensitivity—up to thousands of times greater than traditional sensors—while being more cost-effective. It can be integrated into surgical tools like robotic arms, catheters, and endoscopes, allowing doctors to better perceive the texture and condition of internal organs and tumors. This could prove especially valuable for less experienced surgeons, improving accuracy and reducing the risk of complications during delicate procedures.
Despite its promising potential, the sensor still faces challenges in terms of sensing range and fine-tuning sensitivity. The research team is actively working on optimizing these aspects and aims to commercialize the product within the next five years. With further development, this tiny yet powerful sensor may soon become an essential tool in modern medicine, enhancing precision and patient outcomes across a wide range of medical applications.
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