Abstract: A medical device that includes a handle, a shaft extending from the handle, and an assembly coupled to a distal end of the shaft. The assembly includes an end cap including first and second channels, an imaging mechanism coupled to the end cap and received within the first channel, and a lighting mechanism coupled to the end cap and received within the second channel. The assembly includes a first circuit assembly coupled to the end cap and a second circuit assembly coupled to the first circuit assembly. The imaging and lighting mechanisms are mounted onto the first circuit assembly. The first circuit assembly includes a rigid circuit board communicatively coupled to the imaging and lighting mechanisms. The second circuit assembly includes a flexible circuit board interposed between and communicatively coupled to the first circuit assembly and a control system of the medical device.

Abstract: Imaging devices, imaging systems, and methods are presented for determining distances, depths, and sizes of a viewed tissue or object through a visualization device. The device may include an elongated shaft and an imaging component. The imaging component may extend through the elongated shaft. The imaging component may have a lens and may be configured to capture an image of an area exterior of the elongated shaft in a field of view of the lens. A transparent cover may extend over the lens. The transparent cover may be configured to cause one or more identifiers to appear in the image. The imaging device may include or be used with a computing device to analyze image data of captured images.