Patent ID: 9545273
Date: 2017-01-17
CPC Classifications: A61B

Claim:
1. An intramedullary nail, comprising: a locking hole arrangement having a first opening on one side of the intramedullary nail and a second opening at an opposing side of the intramedullary nail; wherein the locking hole arrangement comprises a first bore having a first bore axis, and a second bore having a second bore axis and a third bore having a third bore axis; wherein the first bore, the second bore and the third bore each forming a first orifice on one side of the intramedullary nail and each forming a second orifice at an opposing side of the intramedullary nail, each of the first, second and third bores forming the first and second orifices having proximal and distal arcuate facing boundaries, wherein the first bore axis and the second bore axis are inclined with respect to each other, wherein the first bore and the second bore intersect each other; wherein the first orifice of the first bore, the first orifice of the second bore and the first orifice of the third bore together form the first opening of the locking hole arrangement; wherein the second orifice of the first bore, the second orifice of the second bore and the second orifice and the third bore together form the second opening of the locking hole arrangement; and the third bore extending between the first and second bores in an area where the first and second bores intersect the third bore to form the proximal and distal arcuate facing boundaries of the first and second orifices, the proximal and distal arcuate facing boundaries each comprising three connected concave arcuate sections formed by the first, second, and third bores respectively, wherein the arcuate sections of the third bore being smaller than the arcuate sections of the first and second bores.