Instrument feeding device and use of a spindle device in an instrument feeding device

An instrument advancing apparatus for translationally and/or rotationally driving at least one first instrument, the instrument advancing apparatus comprising:

• a guide device comprising at least one first axis body extending in a translational driving direction of the at least one first instrument,
• at least one first motor configured to be motor-driven along the first axis body;
• and
• at least one second motor configured to be motor-driven along the first axis body or along a second axis body of the guide device, the second axis body being aligned parallel to the first axis body, and
• wherein the first motor is connected or configured to be connectable to a first holding means configured to hold and/or move the first instrument,
• wherein the second motor is connected or configured to be connectable to a second holding means configured to hold and/or move the first instrument or a second instrument,
• wherein the instrument advancing apparatus comprises a spindle device configured to rotationally move the first instrument, and the spindle device operatively connected to at least one of the first holding means, the second holding means, and a third holding means, and
• wherein the spindle device comprises two counter-rotating threads.