Patent ID: 8128401
Filing Date: 2012-03-06
Classification: A61C

Abstract:
1. A cannula assembly which is removably connectable to a dental irrigator/vacuum syringe; the cannula assembly comprising a single connector and a lumen; said single connector being adapted to be removably connected to a dental irrigator/vacuum syringe, the connector defining: said lumen being a one-piece lumen having a fixed end and a free end remote from said fixed end; said fixed end being fixed to said lower end of said single connector and extending from said single connector lower end; said fixed end of said lumen being spaced axially from said upper end of said single connector whereby said lumen is placed in communication with said syringe by way of said single connector; said one-piece lumen defining a lumen vacuum tube and a lumen irrigation tube; said lumen vacuum tube being in communication with said waste fluid flow path defined by said single connector and said lumen irrigation tube being in communication with said fresh fluid flow path defined by said single connector; said vacuum tube having an exit proximate said fixed end of said lumen and said lumen irrigation tube having an entrance proximate said fixed end of said lumen; said lumen being adapted to reach to within 1-2 mm of the working length of the root canal; said lumen irrigation tube being of a length such that fresh fluid will be delivered directly into the root canal under pressure.