Syringe apparatus and methods for dispensing viscous materials

Dentistry – Apparatus – Having intra-oral dispensing means

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Details

A61C 504

Patent

active

054455235

ABSTRACT:
Syringe assembly apparatus and associated methods are provided for use in dispensing viscous materials, such as dental compositions, in a controlled fashion. The preferred embodiment of the syringe assembly of the present invention includes a syringe body of conventional fashion, having a passageway therethrough and a discharge port communicating with the passageway. An adapter member is provided which nests within the syringe body passageway, the adapter member having a bore passing through the length thereof for receiving a viscous material to be dispensed. When the adapter is nested within the passageway of the syringe body, the bore communicates with the discharge port of the syringe body. An important feature of the invention is that the bore has a diameter substantially the same as the diameter of the discharge port at the location where the discharge port communicates with the bore. The assembly of the present invention also includes a plunger member for ejecting viscous material contained within the bore through the discharge port of the syringe body. The present invention is also directed to adapter members for use with conventional syringes.

REFERENCES:
patent: 2515956 (1950-07-01), Greenberg
patent: 2537550 (1951-01-01), Roos
patent: 2754590 (1956-07-01), Cohen
patent: 2778359 (1957-01-01), Friedman
patent: 3462840 (1969-08-01), Ellman
patent: 3811441 (1974-05-01), Sarnoff
patent: 3854209 (1974-12-01), Franklin et al.
patent: 3974831 (1976-08-01), Malmin
patent: 4540405 (1985-09-01), Miller et al.
patent: 4643724 (1987-02-01), Jobe
patent: 4784607 (1988-11-01), Francois
patent: 4801263 (1989-01-01), Clark
patent: 5067948 (1991-11-01), Haber et al.
patent: 5232459 (1993-08-01), Hjertman
Actual Product Sample of DMG Superlux.RTM. Molar syringe.
Product Brochure-DMG Superlux.RTM. Universal Bond 2, Ionisit.RTM. Base Liner, Superlux.RTM. Mold and Superlux.RTM. Solar-published before Applicants' filing date.
Product Brochure-DMG Alpha.RTM.-Fil, Alpha.RTM.-Base and Alpha.RTM.-Silver-published before Applicants' filing date.
Product Brochure-DMG Luxatemp, temporary crown and bridge material-published before Applicants' filing date.

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