Syringe barrel and cylinder holder

A solution injection system comprising:

• a mechanical syringe driving mechanism having a barrel holder with a flange insert groove and an arcuate guide groove formed on a front side wall surface of the flange insert groove;
• and
• a syringe having a syringe barrel comprising
• a barrel having a body configured to be received within said barrel holder and having a first end and a dispensing end opposite the first end,
• a flange extending outwardly from the barrel body proximate said first end and having an arcuate guide projection extending outwardly from a front surface of the flange towards the dispensing end, and
• wherein the arcuate guide projection is configured to engage with the guide groove of the barrel holder when the syringe barrel is inserted into the barrel holder.