A surgical instrument, comprising: an elongated body portion having a proximal end and a distal end, the body portion having an inner diameter defining a first internal flow passage between the proximal and distal ends, the body portion formed from a malleable metallic material such that the body portion can be bent between the proximal and distal ends from a first configuration to a second bent configuration and maintain the bent configuration; a tracking device positioned adjacent the distal end of the body portion and adapted to cooperate with a navigation system to track a distal tip of the instrument; wherein the tracking device includes an electromagnetic coil; and a handle portion coupled to the proximal end of the body portion and including a second internal flow passage in fluid communication with the first internal flow passage, at least a pair of lead wires connected to the tracking device characterised in that the surgical instrument further comprises a tubular insert portion having a proximal insert end and a distal insert end, the proximal insert end received in the distal end of the body portion, the insert portion being formed of a rigid, non-bendable material; and a sleeve received over the insert portion and extending from the distal insert end and partially towards the proximal insert end, the sleeve includes a depression formed in an outer surface thereof and having a longitudinal axis positioned at an acute angle relative to a longitudinal axis of the body portion; and further characterised in that the electromagnetic coil is positioned in the depression; and the at least a pair of lead wires are wound around the body portion from the tracking device to the handle portion, the wound lead wires configured to conform to the bent configuration of the body portion such that they do not strain or break during bending of the body portion. an elongated body portion having a proximal end and a distal end, the body portion having an inner diameter defining a first internal flow passage between the proximal and distal ends, the body portion formed from a malleable metallic material such that the body portion can be bent between the proximal and distal ends from a first configuration to a second bent configuration and maintain the bent configuration; a tracking device positioned adjacent the distal end of the body portion and adapted to cooperate with a navigation system to track a distal tip of the instrument; wherein the tracking device includes an electromagnetic coil; and a handle portion coupled to the proximal end of the body portion and including a second internal flow passage in fluid communication with the first internal flow passage, at least a pair of lead wires connected to the tracking device characterised in that the surgical instrument further comprises a tubular insert portion having a proximal insert end and a distal insert end, the proximal insert end received in the distal end of the body portion, the insert portion being formed of a rigid, non-bendable material; and a sleeve received over the insert portion and extending from the distal insert end and partially towards the proximal insert end, the sleeve includes a depression formed in an outer surface thereof and having a longitudinal axis positioned at an acute angle relative to a longitudinal axis of the body portion; and further characterised in that the electromagnetic coil is positioned in the depression; and the at least a pair of lead wires are wound around the body portion from the tracking device to the handle portion, the wound lead wires configured to conform to the bent configuration of the body portion such that they do not strain or break during bending of the body portion.