| 摘要 |
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.
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