Small medical devices and their materials research and development attract attention
September 19 04:08:20, 2025
In the ever-evolving field of medical technology, minimally invasive, convenient, and compact devices have emerged as key trends. Recently, several renowned international companies and research institutions have made significant progress in developing small-scale medical devices tailored for specific patient groups and therapeutic needs. Here are some notable advancements.
Philips introduced the world’s smallest transesophageal echocardiography (TEE) sensor, called "microTEE," at the American Society of Echocardiography (ASE). This device is designed for neonatal cardiac imaging and is part of Philips’ latest iE33 intelligent echocardiography system. The microTEE is about one-third the size of previous pediatric TEE sensors, enabling doctors to perform transesophageal echocardiography on the youngest patients and capture images during interventional procedures. Dr. Girish Shirali from the Children’s Hospital at the University of South Carolina praised the design, stating that it represents a major breakthrough in neonatal and infant cardiac imaging, allowing even the tiniest patients to receive imaging similar to adults.
In Switzerland, researchers at ETH Zurich developed the world’s smallest autoinjector, with a needle only one-fifth the width of a human hair. This nanoscale device can deliver drugs or DNA without damaging cells, marking an important step forward in biological and pharmacological research. Its potential applications span across medicine, chemistry, and materials science, offering new possibilities for targeted drug delivery and genetic therapies.
Meanwhile, a team from the University of Tokyo created miniature fluorescent beads that change their luminescence intensity based on blood glucose levels. These beads, which emit green fluorescence under ultraviolet light when exposed to glucose, were combined with a gelatinous substance to form 0.1 mm-sized particles. Animal experiments have already been conducted, and researchers believe this technology could revolutionize diabetes management by enabling non-invasive, real-time glucose monitoring. Instead of relying on daily blood tests, patients could use these micro-beads in future glucose meters for continuous, pain-free readings.
The team aims to refine the performance of the fluorescent beads and conduct further safety trials. They expect the technology to reach practical application within the next 10 to 15 years, bringing a new era of personalized and less intrusive healthcare solutions.
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