Guide for flexible bone drill and bone resection instrument

A guide for a flexible bone drill, comprising:

• a first body defining an internal through channel;
• a second, internally hollow body, into which said first body can be inserted;
• wherein a side wall of said second body defines a through hole suitable to be placed in fluidic connection with the internal through channel of said first body;
• wherein said internal through channel of the first body comprises:
• an axial portion, extending at least partially along a longitudinal axis of said first body, from a first free end of said first body to an intermediate point along said longitudinal axis;
• and
• a transverse portion, extending from said intermediate point along the longitudinal axis towards a side wall of said first body;
• wherein the flexible bone drill is insertable into the internal through channel in said first body, from the first free end of said first body so as to pass through the axial portion and the transverse portion of the internal through channel, and exit from the second body through the through hole;
• said second body and said first body being slidable relative to one another along said longitudinal axis of the first body to vary the relative position of the through hole with respect to said transverse portion of said internal through channel consequently modifying an exit angle of the flexible bone drill with respect to an orthogonal axis passing through the hole, wherein the orthogonal axis is orthogonal to a longitudinal axis of the guide, wherein the exit angle is measured between the orthogonal axis and a transverse axis that extends through the through hole and is transverse to said longitudinal axis of the first body.