US 12,357,430 B2
Orthopedic implant that saves bone cutting with drill bits in advance in orthopedic and dental surgeries
Chun-Leon Chen, Taipei (TW)
Assigned to STAR GENERATION LIMITED, New Taipei (TW)
Filed by STAR GENERATION LIMITED, New Taipei (TW)
Filed on Oct. 21, 2022, as Appl. No. 17/970,841.
Claims priority of application No. 110147276 (TW), filed on Dec. 16, 2021.
Prior Publication US 2023/0190418 A1, Jun. 22, 2023
Int. Cl. A61C 8/00 (2006.01); A61B 17/86 (2006.01)
CPC A61C 8/0024 (2013.01) [A61B 17/863 (2013.01); A61C 8/0045 (2013.01)] 9 Claims
OG exemplary drawing
 
1. An orthopedic implant that saves bone cutting with drill bits in advance in orthopedic surgery, comprising:
a main body being formed with a plurality of steps arranged along a drilling axis and having diametrical sizes gradually increased from bottom to top, so as to have a stepped and downward tapered overall configuration; each of the steps including a cylindrical section and a conical section providing a drilling surface, and the conical section of the step having the smallest diametrical size being downward extended and tapered to form an apex;
an external thread being formed on an outer surface of the main body to cover all cylindrical sections of the main body, while all conical sections of the main body are exposed to an outer environment without being covered by the external thread; and
a plurality of lateral cutting flutes being formed on the external thread and sunken into the main body; and each of the lateral cutting flutes being extended from the apex located at a lower end of the main body to the step having the largest diametrical size and located around an upper end of the main body, while a spacing distance is formed between an upper end of the lateral cutting flute and the upper end of the main body;
wherein the orthopedic implant being rotatable about the drilling axis to drive the apex and all drilling surfaces provided by the conical sections into a piece of bone linearly to destruct the bone; and
wherein a length of each of the lateral cutting flutes corresponding to the apex has a width that is gradually reduced from an end of the apex located adjacent to the cylindrical section of a diametrically smallest step toward a tip of the apex.