Dental injection device
OwnerJay Marlininventor
Life of this patent
Estimating the term…
Abstract
A hand held dental injection device including a conduit having an inlet and an outlet. A rotatable conveying screw having conveyance flutes is positioned within the conduit for conveying thermoplastic material received from the inlet of the conduit alongside the screw through the conduit and out the outlet with the conveyance flutes. A heating system heats the thermoplastic material. A needle is mounted to the outlet of the conduit for directing the thermoplastic material into dental cavities.
Claims27
A hand held dental injection device comprising:
- a conduit having an inlet and an outlet;
- a rotatable conveying screw having conveyance flutes, the screw being positioned within the conduit for conveying thermoplastic material received from the inlet of the conduit alongside the screw through the conduit and out the outlet with the conveyance flutes;
- a heating system for heating the thermoplastic material;
- and
- a needle mounted to the outlet of the conduit for directing the thermoplastic material into dental cavities.
A hand held dental injection device comprising:
- a hand held body;
- a handle extending generally laterally from the body;
- a conduit mounted to the body having an inlet and an outlet;
- a feed assembly for feeding thermoplastic material into the inlet of the conduit, the feed assembly being positioned within the handle;
- a rotatable conveying screw having conveyance flutes, the screw being positioned within the conduit for conveying the thermoplastic material received from the inlet of the conduit alongside the screw through the conduit and out the outlet with the conveyance flutes;
- a heating system for heating the thermoplastic material;
- heat shielding material surrounding at least a portion of the heating system;
- and
- a needle mounted to the outlet of the conduit for directing the thermoplastic material into dental cavities.
A method of filling dental cavities with a hand held dental injection device comprising:
- rotating a conveying screw having conveyance flutes within a conduit, the conduit having an inlet and an outlet, the conveying screw for conveying thermoplastic material received from the inlet of the conduit alongside the screw through the conduit and out the outlet with the conveyance flutes;
- heating the thermoplastic material with a heating system;
- and
- directing the thermoplastic material into the dental cavities with a needle mounted to the outlet of the conduit.
Dependencies are inferred from the claim text.