US Patent 11202641 Adjustable drilling device and a method for use thereof

A bone removal device, including:an elongated shaft having a longitudinal axis, a distal end and a proximal end;a bone borer having a distal drilling tip configured to drill into a bone tissue and at least one proximal reamer, wherein the bone borer is movably coupled to a distal end of the elongated shaft, wherein the bone borer is configured to move between a drilling state in which the drilling tip is placed in contact with bone tissue, and reaming states in which the at least one proximal reamer is placed in contact with the bone tissue.