US Patent 11428922 Optical coupler for optical imaging visualization device

An optical coupler for mounting at a distal end of an optical imaging device includes a visualization section and an attachment section. At least one surface of the visualization section has a roughness that does not interfere with a video capture system of an optical imaging device. The optical coupler is sized and dimensioned for introduction into a region of the patient's heart for viewing a procedure, such as a heart valve repair or replacement procedure.