Dental tool holder
AssigneeDentalwerk Burmoos Gesellschaft m.b.H.
InventorsMarc F. C. Apap, Cedric L. M. C. Thorin, Otto Rosenstatter, Peter Malata
Life of this patent
Estimating the term…
Abstract
A dental toolholder (2) has an endodontic filing tool (18) which is clamped in the toolholder so as to be secured against rotational and axial movements. A vibrating movement is impressed on the tool. The tool (18) can be clamped at its rear shaft end with a slight play and the vibrations can be imparted to the tool at its front shaft end (15). This part encloses the front shaft end (7b) with slight play and comprises a cylindrical recess whose cross-sectional shape has a constant-diameter configuration. Accordingly, the tool is set into a swinging movement perpendicular to its axis. The structural component part (15) rotates preferably at approximately 20,0000 rpm.
Claims10
A dental toolholder apparatus in combination with and for holding an endodontic filing tool having a filing end for filing tooth material, and a shaft connected to the filing end, the apparatus comprising a toolholder housing, a drive sleeve mounted for rotation to said toolholder housing, said drive sleeve having a borehole therethrough for engaging a lower end of the tool shaft for rotating and oscillating the tool, said borehole having a cross section taken transversely to the axis of the filing tool which has a constant-drive configuration for rotating the tool while permitting swinging movement of the tool, clamping means connected to the housing for clamping an upper end of the tool shaft against axial movement to the housing while permitting swinging movement and rotation of the tool, and drive means operatively connected to said drive sleeve for rotating said drive sleeve.
Dependencies are inferred from the claim text.