Rotary endodontic file with frictional grip
AssigneeMedic Nrg Ltd.
InventorsArik Becker, Haim Levy, Simon Rothenstein
Life of this patent
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Abstract
An endodontic file has at least a central longitudinal cord, a helically wound wire at least partially surrounding the cord and an elastomeric grip partially covering the helically wound wire near a first end thereof. The elastomeric grip has an outer diameter that is slightly wider than an internal diameter of a barrel of a dental instrument whereby on insertion into the barrel it is supported therein only by friction.
Claims32
An endodontic file comprising at least a central longitudinal cord, a helically wound wire at least partially surrounding the cord and an elastomeric grip partially covering the helically wound wire near a first end thereof and having an outer diameter that is slightly wider than an internal diameter of a barrel of a dental instrument whereby on insertion into the barrel it is supported therein only by friction.
Dependencies are inferred from the claim text.