Ivoclar Vivadent Ag

Ralf Suffel

Klaus Galehr

Gottfried Rohner

Wolfgang Josef Wachter

Frank Müller

Walter Pokorny

Sebastian Holaschke

Irina Assmann

An application device with a cylindrical basic body for storing a squeezable dental material having a piston positioned inside the basic body and axially displaceable towards the basic body. A piston rod serves to displace the piston in the squeezing direction, which piston rod partially reaches into the piston and is axially displaceable towards the latter. The piston is provided with an elastic resetting device at its front end area positioned in the direction towards the dental material. The elastic resetting device can be biased in the squeezing direction, and returns back to its relaxed position after the end of each axial movement of the piston in the squeezing direction and release of the pressure exerted on the piston rod for this purpose.

Application device

The invention relates to an application device for dental materials with a cartridge that has a piston and is destined for receiving the dental material, and with an application nozzle that is attached to an outlet port of the cartridge. A positive or form-fit connection between the cartridge () and the application nozzle () is formed, and the application nozzle () and/or the cartridge () have a vent duct () whose width or diameter prevents or blocks the dental material from flowing out.

Fulcrum shaft syringe

Growing community of inventors

Haag, Switzerland

Ralf Suffel