초록 ▼

A bulk dental syringe for dispensing predetermined incremental amounts of dental material that includes a barrel assembly that contains a bulk supply of dental material. The barrel assembly is detachably connected to a handle or holder which may be either a finger holder or a lever actuated holder.

A bulk dental syringe for dispensing predetermined incremental amounts of dental material that includes a barrel assembly that contains a bulk supply of dental material. The barrel assembly is detachably connected to a handle or holder which may be either a finger holder or a lever actuated holder. The barrel assembly is sealed at one end with a displaceable plug or piston, which is engaged by a plunger to express the material therefrom . A discharge spout and a plurality of flexible fingers circumscribing the spout is connected to the other end of the barrel assembly, and a disposable nozzle tip is releaseably secured to the spout by the flexible fingers. A lock collar is provided to positively maintain the flexibe fingers in securement about the nozzle tip. To prevent drooling of the material, a pressure relief arrangement is provided on the end of the plunger.

대표청구항 ▼

A dental syringe for dispensing a predetermined amount of dental material directly to a tooth from a bulk supply of said material comprising a barrel means defining an elongated tubular member adapted to contain a bulk supply of a dental material, a discharge spout formed on one end of said tubular

A dental syringe for dispensing a predetermined amount of dental material directly to a tooth from a bulk supply of said material comprising a barrel means defining an elongated tubular member adapted to contain a bulk supply of a dental material, a discharge spout formed on one end of said tubular member, said tubular member being opened at its other end, a plug sealing said opened end to confine a material within said tubular member, means defining a plurality of flexible fingers connected to said tubular member, said fingers circumscribing said discharge spout, said fingers having an internal retaining notch, a nozzle tip detachably connected to said spout, said tip having a laterally extending flange adjacent one end and a nozzle orifice formed at its other end, said nozzle tip being fitted over said spout whereby said flange is engaged by said finger retaining notch for detachably retaining said nozzle tip on said spout, and a collar slidably disposed relative to said fingers for positively securing said fingers in gripping relationship onto said nozzle tip, a plunger slidably mounted within said tubular member for engaging said plug for extruding the dental material through said point and associated tip as said plug is displaced.