US 12,076,212 B1
Internal sinus lifting drill set
Khalid Abdullah Alruhaimi, Riyadh (SA)
Assigned to KING SAUD UNIVERSITY, Riyadh (SA)
Filed by KING SAUD UNIVERSITY, Riyadh (SA)
Filed on Feb. 19, 2024, as Appl. No. 18/444,853.
Int. Cl. A61C 8/00 (2006.01); A61B 17/16 (2006.01)
CPC A61C 8/0092 (2013.01) [A61B 17/1615 (2013.01); A61B 17/1688 (2013.01); A61C 8/0037 (2013.01); A61C 2008/0046 (2013.01)] 1 Claim
OG exemplary drawing
 
1. A method for lifting a sinus for dental implants by sequentially using a first group of drill bits with a drilling device by an operator, the method comprising:
connecting a first drill bit to the drilling device and imparting a clockwise rotation to said first drill bit;
using said first drill bit, said first drill bit having a pointed tip and a circumference of sharp teeth edge running along a length of said first drill bit, drilling into a sub-antral bone segment of a patient and cut along the sub-antral bone's segment's sides to form a required implant width;
removing said first drill bit from said drilling device;
connecting a second drill bit to the drilling device and imparting a clockwise rotation to said second drill bit;
using said second drill bit, said second drill bit having a hemispherical shaped tip with an upper surface comprising a flat projection with a serrated circumference of oblique cutting teeth to further grind a center of the sub-antral bone segment while avoiding cutting and perforating a sinus membrane;
reversing the clockwise rotation imparted by the drill device to a slow motion counterclockwise rotation to push ground sub-antral bone fragments towards a sinus cavity of the patient to further ease the elevation of the sinus membrane;
sensing for a shuddering or wobbling of the sinus membrane by the operator;
removing said first drill bit from said drilling device;
connecting a third drill bit to the drilling device and imparting a clockwise rotation to said third drill bit;
using said third drill bit, said third drill bit having a flat protruding tip atop with an upper surface and an upper portion; said upper portion comprising cutting edges to further grinding and breaking of remaining sub-antral bone segment shoulders while avoiding cutting and perforating a sinus membrane and also elevating the sinus membrane;
reversing the clockwise rotation imparted by the drill device to a slow motion counterclockwise rotation to push ground sub-antral bone fragments towards a sinus cavity of the patient;
removing said third drill bit from said drilling device; and
implanting a dental implant within the implant hole.