Patent ID: 9289219
Filing Date: 2016-03-22
CPC Classification: A61B,B23B

Claim Text:
1. A drill bit, including a body to provide a cutting region for making holes, wherein in use, the cutting region makes a hole having an edge that defines a distal end of the hole and an edge that defines a proximal end of the hole, wherein the body includes a cannulation in the cutting region and an opening in the cutting region which is in communication with the cannulation; wherein the drill bit includes an insert in the cannulation, a pusher to move the insert along the length of the cannulation to cause the insert to project out of the opening in the cutting region, and a gauge, wherein once the cutting region is used to make the hole, the pusher may be used to move the insert to project out of the opening in the cutting region to facilitate the insert engaging the edge of the hole which defines the distal end of the hole, thereby providing a fixed reference point from which the gauge measures a distance between the distal end and the proximal end of the hole.