316l stainless steel or aluminum with thickness between 0 1 to 0 3 mm the thin wall allows seal 3 to enter into the hollow disc and squeeze out all the liquid in order to eliminate the need of molding custom syringes it was found out that the slight ridge 8 can be formed in existing syringes by briefly heating up the area of ridge 8 and pressing the walls in slightly using a split ring slightly smaller than the outside diameter of the syringe other ways of creating a ridge without molding is pressing into the syringe a thin walled ring held by friction if desired the invention can be manufactured out of a standard disposable syringe without any modifications the movable disc 5 is attached to the outlet side of the syringe with a short string that only allows it to move a limited distance the string 13 is bonded by heat to the syringe or uses an anchor 14 this is shown in fig5 in operation tube 4 is first inserted into a mixing bowl where the ingredients are mixed together the mixture is sucked into the syringe after filling the syringe is held vertically to help trapped air escape and plunger moved to expel all air afterwards tube 4 is moved to the catheter or needle used for the procedure and mixture is injected an additional improvement in mixing.