Drill assistance kit for implant hole in a bone structure

Method for bone surgery comprising the steps of:

• a. placing a base frame comprising at least one guiding tube with a cylindrical inner surface having a predetermined diameter and a longitudinal cutout on an anatomical part of a patient for providing positioning of a chirurgical drill on said anatomical part,
• b. placing a burr-ring around said chirurgical drill wherein said burr-ring comprises a cylindrical outer surface having a predetermined diameter that is slightly less than said diameter of said cylindrical inner surface of said guiding tube,
• c. drilling into said anatomical part of the patient wherein the chirurgical drill penetrates axially into the anatomical part along a common central longitudinal axis while said burr-ring engages into said guiding tube and wherein the burr-ring and the guiding tube are at most in a two-degree of freedom relationship and wherein said two-degree of freedom relationship is consisting of a rotation and a translation of the burr-ring along said common central longitudinal axis, and
• d. controlling the drilling by providing direct view of the drilling site by said longitudinal cutout of the guiding tube.