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Feature

World’s First Extended Depth of Field Endoscope

Minimally invasive surgery has become increasingly popular nowadays. However, conventional endoscopic imaging lens modules have their limits because of their small depth of field, which subsequently results in poor-quality images and longer surgery time. ITRI addressed the problem by developing an extended depth of field (EDoF) imaging lens module for endoscope systems.

In contrast with conventional endoscopic imaging lens modules, ITRI’s EDoF endoscope imaging lens module has the capability of extending the depth of field without changing the lens’ focus, which makes surgical procedures more effective and efficient. In other words, it helps reduce surgery time as it can acquire clear images in both near and far distances for a smooth cooperation with other surgical instruments, e.g. in a suturing procedure. Moreover, the EDoF endoscope is compact and lightweight, making it easy to use for surgeons.

According to Dr. Yung Sung Lan, Engineer of ITRI’s Biomedical Technology and Device Research Laboratories, ITRI’s EDoF endoscope is the world’s first that has an extended depth of field without the need to focus. It also has a large field of view at 100 degrees, providing a more extensive view than that of the traditional average angle of 80 degrees. Furthermore, it is equipped with image enhancement technology and panoramic capturing enabled software that can produce both wide view high-resolution images and 3D information images. These features allow physicians and surgeons to diagnose or treat with much greater precision and accuracy.

Dr. Lan indicated that currently ITRI’s EDoF endoscope is designed for minimally invasive abdominal surgeries, and is protected by 14 patents. He said this innovation is expected to gradually extend its applications to areas including chest, gynecologic, and urologic surgeries in the future.