Cement mixing and injection system and methods

A system for mixing and delivering a fluid treatment to a patient, the system comprising:

• a mixer to mix the fluid treatment prior to delivery, the mixer comprising:
• a mixing chamber;
• and
• a port to facilitate access to the mixing chamber;
• a syringe to extract the fluid treatment from the mixer and deliver the extracted fluid treatment to a patient, the syringe comprising:
• a barrel to hold the fluid treatment, the barrel including a distal nose to interface with the port;
• a plunger within the barrel to displace the fluid treatment;
• a handle selectively coupled to the plunger to facilitate plunger movement;
• and
• a retainer removeably attachable to a proximal end of the barrel, wherein the retainer engages the plunger when the plunger is positioned at the proximal end and prevents the plunger from rotating relative to the barrel;
• and
• a pressure delivery device to selectively couple to the syringe when the handle is removed from the plunger, wherein the pressure delivery device pressurizes the syringe to facilitate plunger movement,
• wherein the retainer comprises a socket with a mating surface corresponding to a mating proximal portion of the plunger, and
• wherein the mating surface of the socket engages with the mating proximal portion of the plunger to prevent rotational movement of the plunger relative to the barrel.