The flexible, soft insertion tube has a small diameter and a smooth surface to reduce urethral injury and discomfort. A high-definition field of view and 360-degree observation support inspection of the bladder walls and neck. As a single-use medical device, it avoids cross-infection risk and supports supine, lateral, and other operating positions, including use for patients with paraplegia or those confined to bed in critical care. It is also designed for straightforward operation and rapid turnover.