An elongate medical device is disclosed which is configured for placement into a cavity of a body. The device has an elongate body member with a proximal end and a distal end, the body member having a light source, an image sensor, and a lens disposed about the distal end of the body, the lens being coupled to the image sensor. A disposable compliant sheath is removably disposed about the exterior of the elongate body member enclosing the elongate body member. The disposable sheath has a transparent optical member that is optically aligned with the lens.
