Back to results
US 2003/0157462 A1Published application
Dental anchoring device
OwnerAlan Julian Segalinventor
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
OwnerAlan Julian Segalinventor
Estimating the term…
A dental anchoring device (8) comprises a threaded anchoring pin (10), connected to a rod (13) by a weakened waisted portion (14). Rod (13) is carried by a main body (11) with a shaped axial blind bore (12) for fitting the body onto a drill shank (2), having a bit (5) receivable on the bore. The body (11) has a deformable lip (18) for snap fitting with a raised ridge (6) on the shank (2). A tapered part (4) of one shank and matching section (15) of the bore are provided with respective flat faces (7, 17) to key the shank to the body. Locking groove (3) keys the shank (2) into the chuck of a dentists drill. In an alternative embodiment (FIGS. 3 and 4), a line of weakness is provided between a metal anchoring pin (21) and a plastics body (27), which is severed when a limiting torque is exceeded. allowing the body (27) to be withdrawn, and the pin (21) to be left in situ.
A dental anchoring device comprising a threaded anchoring part, a connecting part adapted for detachable drivable connection to a dentist's drill, and at least one position of weakness between the anchoring part and the connecting part characterised in that the anchoring part is adapted to be connected to the drill with a drill bit in the drill.
A dental anchoring device according to any preceding claim wherein the connecting part has side abutment faces which engage corresponding side abutment faces of the drill bit to prevent rotation.
A dental anchoring device comprising a threaded anchoring part, and a connecting part adapted for detachable driving connection to a dentist's drill, the connecting part being drivably interconnected to one anchoring part so as to be releasable therefrom, when a predetermined level of driving torque is exceeded, characterised in that the connecting part is interconnected with the anchoring part by a structure which is adapted to rupture or deform circumferentially to permit said release thereof when said level of driving torque is exceeded.
Dependencies are inferred from the claim text.