MIXING VIAL
A method for buffering anesthetic.
1 . A method of mixing two chemical agents, the method comprising:
providing a syringe with a blunt pushrod;
providing a cartridge, the cartridge comprising:
a vessel, having distal and proximal ends, the vessel comprising a hollow interior chamber with a neck on the distal end; and
a stopper-piston positioned in a sealing relationship with said neck, said stopper-piston comprising a hollow interior chamber with an open proximal end with a dislodgeable plug positioned in and sealing said open end, and said stopper-piston further comprising a closed, distal end comprising a membrane;
a cap positioned on said proximal end of said vessel;
wherein said interior chamber of said vessel comprises a first chemical agent, and said interior chamber of said stopper-piston comprises a second chemical agent;
inserting the cartridge into the syringe; and
depressing the membrane with the blunt pushrod to dislodge the dislodgeable plug, wherein the dislodgment of the dislodgeable plug mixes the first chemical agent and the second chemical agent.
2 . The method of claim 1 , further comprising providing a syringe needle, wherein the syringe needle pierces the cap when inserting the cartridge into the syringe.
3 . The method of claim 1 , wherein depression of the membrane with the blunt pushrod does not penetrate the membrane.
4 . The method of claim 1 , wherein the first chemical agent is an anesthetic solution and the second chemical agent is a buffering agent.
5 . A method of buffering anesthetic, the method comprising:
providing a syringe with a blunt pushrod;
providing a cartridge, the cartridge comprising:
a vessel, having distal and proximal ends, the vessel comprising a hollow interior chamber with a neck on the distal end; and
a stopper-piston positioned in a sealing relationship with said neck, said stopper-piston comprising a hollow interior chamber with an open proximal end with a dislodgeable plug positioned in and sealing said open end, and said stopper-piston further comprising a closed, distal end comprising a membrane;
a cap positioned on said proximal end of said vessel;
wherein said interior chamber of said vessel comprises a first chemical agent, and said interior chamber of said stopper-piston comprises a second chemical agent;
inserting the cartridge into the syringe; and
depressing the membrane with the blunt pushrod to dislodge the dislodgeable plug, wherein the dislodgment of the dislodgeable plug mixes the first chemical agent and the second chemical agent.
6 . The method of claim 5 , further comprising providing a syringe needle, wherein the syringe needle pierces the cap when inserting the cartridge into the syringe.
7 . The method of claim 5 , wherein depression of the membrane with the blunt pushrod does not penetrate the membrane.
8 . The method of claim 5 , wherein the first chemical agent is an anesthetic solution and the second chemical agent is a buffering agent.