SURGICAL NEEDLE SET AND METHOD FOR DETERMINING THE POSITION OF A SURGICAL INSTRUMENT

In particular for automatically determining the position of a Jamshidi needle, the invention provides a surgical needle set comprising a hollow needle and an obturator, wherein the obturator has, starting a finite distance from its distal tip, a hollow space extending longitudinally in a proximal direction, wherein at least one proximal lateral outlet of the hollow space is provided within a handle part of the obturator, and wherein the hollow space is in connection with a passage of an adapter part of an adapter, which passage extends at a finite angle to the longitudinal extent of the hollow space.