Patent ID: 8388621

Claim:
A method of creating a bone tunnel during ligament reconstruction surgery comprising: placing a guide wire through a femur, the guide wire having: at a first end of the guide wire a pointed tip end portion including a pointed tip, and at a second end of the guide wire a drill bit assembly coupling end portion; placing a drill mechanism over the pointed tip end portion of the guide wire, the drill mechanism having a first end portion including a drill bit and a second end portion including an attachment portion; coupling an adaptor assembly to the attachment portion, the adaptor assembly including a shaft; coupling a drill to the shaft and operating the drill to create a tunnel in the femur; coupling a drill bit assembly to the drill bit assembly coupling end portion of the guide wire and locating the drill bit assembly against the drill bit of the drill mechanism; and operating the drill to create a counter bore within the tunnel, wherein coupling a drill bit assembly to the drill bit assembly coupling end portion of the guide wire further comprises fixating the drill bit assembly to the guide wire using a locking mechanism.