Syringe apparatus with detachable mixing and delivery tip

A syringe apparatus comprising:

• a barrel enclosing a first chamber therein;
• a mixing and delivery tip enclosing a second chamber containing fluids to be mixed therein and then delivered to a desired surface;
• coupling means for securing said mixing and delivery tip to said barrel;
• valve means situated between said first and second chambers for providing passage of air to and from said second chamber;
• primary plunger means extending partially into said first chamber for selective application of pressure so that as the primary plunger means is pushed into the first chamber through a first distance, pressurized air is injected from the first chamber through the one-way valve means into the second chamber so as to create mixing turbulence within the fluids contained in the second chamber;
• and
• secondary plunger means separate and unattached from the first plunger member so as to be slidable within the second chamber to engage and seal said valve means only once the primary plunger means contacts the secondary plunger means, with continued movement of the primary plunger means through the first chamber for a second distance also causing movement of the secondary plunger means and movement of the sealed valve means through the secondary chamber so as to terminate the turbulence and expel the contents of the second chamber.

A syringe apparatus comprising:

• a transparent barrel which forms a first chamber therein, the barrel having a first coupling member at a distal end thereof and having an inlet opening at a proximal end thereof;
• a transparent mixing tip which forms a second chamber for holding fluids to be mixed therein, and having a delivery tip at a distal end thereof for delivery of the mixed fluids to a desired surface, and having a second coupling member at a proximal end thereof which is couplable to the first coupling member so as to join the mixing tip to the barrel;
• an elastomeric piston disposed in the second chamber, said piston having an aperture formed therethrough for providing passage of air into and out of the second chamber so as to create turbulence and mixing of the fluids in the second chamber as air enters the second chamber;
• a first plunger member inserted through the inlet opening of the barrel and separately moveable through the first chamber for a first distance, said first plunger member comprising a first piston rod with an elastomeric piston disposed at a distal end thereof in fluid-tight engagement with said first chamber, and further comprising a generally flat member at a proximal end thereof situated outside of the first chamber and to which force is applied to move the piston through the first chamber;
• a second plunger member moveable only in tandem with the first plunger member through a second distance, said second plunger member comprising a second piston rod with a distal end adapted to contact and seal the aperture in the elastomeric piston disposed in the second chamber, and further comprising a disc at a proximal end of the second piston rod to which force is applied by the piston at the distal end of the first piston rod when moving the second plunger member in tandem with the first plunger member through the second distance, and further comprising a spike attached at an edge of the disc;
• and
• whereby as the first plunger member is moved through the first distance air is pressurized and forced through the aperture in the elastomeric piston disposed in the second chamber to create a mixing turbulence in the fluids therein, and as the first plunger member is moved through the second distance, the spike breaks the fluid-tight seal of the piston at the distal end of the first plunger rod, and the piston at the distal end of the first plunger rod contacts the disc so as to move the second plunger member in tandem with the first plunger member, causing the distal end of the second plunger rod to seal the aperture and push the piston in the second chamber through the second chamber to expel the mixed fluids.

A syringe apparatus comprising:

• a barrel enclosing a first chamber therein;
• a mixing and delivery tip enclosing a second chamber containing fluids to be mixed therein and then delivered to a desired surface;
• coupling means for securing said mixing and delivery tip to said barrel;
• valve means situated between said first and second chambers for providing passage of air to and from said second chamber;
• primary plunger means extending partially into said first chamber for selective application of pressure so that as the primary plunger means is pushed into the first chamber through a first distance, pressurized air is injected from the first chamber through the one-way valve means into the second chamber so as to create mixing turbulence within the fluids contained in the second chamber said primary plunger means comprising a first plunger rod having an elastomeric piston at a distal end thereof, said piston slidably disposed in said first chamber in a fluid-tight manner, and a proximal end with a generally flat member to which force is applied to move the piston through the first chamber;
• and
• secondary plunger means slidable within the second chamber for engaging and sealing said valve means such that as the primary plunger means contacts the secondary plunger means, continued movement of the primary plunger means through the first chamber for a second distance will also cause movement of the secondary plunger means and movement of the sealed valve means through the secondary chamber so as to terminate the turbulence and expel the contents of the second chamber, said secondary plunger means comprising a second plunger rod having a distal end adapted for contact and sealing of said valve means, and further comprising a proximal end with a disc thereon slidably disposed in said first chamber in a non-fluidtight manner, and to which force is applied by the piston of said first rod to slidably move the second rod.