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Injection delivery system

  • US 9,067,028 B2
  • Filed: 06/16/2014
  • Issued: 06/30/2015
  • Est. Priority Date: 02/11/2008
  • Status: Active Grant
First Claim
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1. 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.

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