US Patent 11493755 Microscope drape

A microscope drape with a structure in which a distance between an objective lens and a surgical field is appropriately set includes: a lens cap attached to or detached from a housing of an objective lens of a surgical microscope; a protective lens attached to a distal end of the lens cap in a state of being inclined with respect to an optical axis of the objective lens to protect the objective lens; a drape body attached to an outer periphery of the protective lens to cover, together with the lens cap, the surgical microscope; and a joint that supports the protective lens with respect to the lens cap so as to change an inclination angle of the protective lens with respect to the optical axis.