Dental syringe and method of packaging and dispensing a dental m

Details Dental syringe and method of packaging and dispensing a dental m Dental syringe and method of packaging and dispensing a dental m

1982-06-15

1985-01-08

Swiatek, Robert P.

Dentistry

Apparatus

Having intra-oral dispensing means

604 61, 604218, 604311, A61C 504, A61M 531

Patent

active

044925760

ABSTRACT:
A dental syringe and a method of packaging and dispensing a dental material wherein the package containing the dental material comprises a cartridge containing a bulk supply of dental material, and which cartridge is constructed so as to function as a syringe for effecting the extrusion of the dental material therefrom as may be needed in a dental restorative procedure. The cartridge comprises an elongated tubular barrel having an open end portion and a forward discharging orifice portion through which the material is extruded. A displaceable piston seals the rear end of the barrel to confine the dental material within the barrel, and which cartridge can be readily attached to a handle and associated plunger to complete a syringe assembly. The plunger is also provided with a device for relieving the back pressure imparted to the cartridge piston during an extruding operation to prohibit any unwanted drooling of the material therefrom. The associated plunger may also be adjustably extended to effect total extrusion of the material from the cartridge in predetermined incremental amounts.

REFERENCES:
patent: 2294954 (1942-09-01), Brady
patent: 2505028 (1950-04-01), Boeger
patent: 3766918 (1973-10-01), Kessel
patent: 3974831 (1976-08-01), Malmin
patent: 4338925 (1982-07-01), Miller
patent: 4391590 (1983-07-01), Dougherty

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