Dual check valve one handed applicator

A delivery system comprising:

• a delivery device, including:
• a trigger mechanism;
• a pusher, configured to engage with the trigger mechanism, the pusher further configured to retain a first syringe a least by coupling with a plunger of the first syringe;
• a valve fluidly coupled to the first syringe;
• and
• a cannula extending distally from and fluidly coupled to the valve;
• and
• a second syringe fluidly coupled to the valve, the second syringe including a composition,
• wherein depressing a plunger of the second syringe causes the composition to be expelled out of the second syringe, through the valve, and into the first syringe, and
• wherein activation of the trigger mechanism causes the pusher and the plunger of the first syringe to translate in a distal direction, such that the composition in the first syringe is expelled out of the first syringe, through the valve, through the cannula, and out of a distal end of the cannula.

A method of delivering a composition comprising:

• attaching a supply syringe to a valve of a delivery device, the supply syringe including the composition;
• depressing a plunger of the supply syringe such that, responsive to depressing the plunger, the composition is expelled out of the supply syringe, through the valve, and into a delivery syringe;
• activating a trigger mechanism of the delivery device such that, responsive to activating the trigger mechanism, a plunger of the delivery syringe is depressed and the composition is expelled out of the delivery syringe, through the valve, and into a cannula;
• further depressing the plunger of the supply syringe such that, responsive to depressing the plunger, additional composition is expelled out of the supply syringe, through the valve, and into the delivery syringe;
• and
• further activating the trigger mechanism of the delivery device such that, responsive to activating the trigger mechanism, the plunger of the delivery syringe is depressed and the additional composition is expelled out of the delivery syringe, through the valve, and into the cannula.

A kit comprising:

• a pre-filled sodium chloride solution syringe;
• a thrombin vial;
• a pre-filled gelatin matrix syringe;
• and
• a delivery device, including:
• a trigger mechanism;
• a pusher, configured to engage with the trigger mechanism, the pusher further configured to retain a delivery syringe at least by coupling with a plunger of the delivery syringe;
• a valve fluidly coupled to the delivery syringe;
• and
• a cannula extending distally from and fluidly coupled to the valve;
• wherein the pre-filled gelatin matrix syringe fluidly couples to the valve,
• wherein depressing a plunger of the pre-filled gelatin matrix syringe causes a composition to be expelled out of the pre-filled gelatin matrix syringe, through the valve, and into the delivery syringe, and
• wherein activation of the trigger mechanism causes the pusher and the plunger of the delivery syringe to translate in a distal direction, such that the composition in the delivery syringe is expelled out of the delivery syringe, through the valve, through the cannula, and out of a distal end of the cannula.