Injection delivery system

A neurosurgery injection delivery system for automatically injecting fluid into an injection site, comprising:

• at least one support element;
• a carriage moveably mounted to the at least one support element so that the carriage can move linearly relative to the at least one support element;
• a motorized carriage actuator operable to cause incremental linear movement of the carriage relative to the at least one support element;
• the carriage having a support structure adapted for removably receiving and carrying a syringe assembly for movement with the carriage;
• a motorized plunger actuator carried by the carriage so as to move with the carriage, the plunger actuator adapted to be operably coupled to a syringe plunger for causing incremental linear movement thereof within a syringe barrel;
• and
• a motorized rotation actuator carried by the carriage and operable for causing incremental rotation of a syringe cannula relative to the carriage without causing linear movement of the cannula;
• wherein the carriage actuator, the plunger actuator and the rotation actuator are co-operable to deliver fluid with:
• delivery accuracy:
• about +/−0.1 microliters (100 nanoliters);
• volume feedback accuracy:
• about 50 nanoliters;
• position accuracy:
• about 50 micrometers;
• and
• position feedback accuracy:
• about 50 nanometers.