US 11,751,925 B2
Bone screw with cutting tip
Chris Ramsay, West Wareham, MA (US); and Joseph Peterson, South Dartmouth, MA (US)
Assigned to Medos International Sarl, Le Locle (CH)
Filed by Medos International Sarl, Le Locle (CH)
Filed on Aug. 12, 2020, as Appl. No. 16/991,109.
Application 16/991,109 is a continuation of application No. 15/852,310, filed on Dec. 22, 2017, granted, now 10,772,667.
Prior Publication US 2020/0367952 A1, Nov. 26, 2020
Int. Cl. A61B 17/86 (2006.01); A61B 17/70 (2006.01); A61B 17/16 (2006.01); A61B 90/00 (2016.01)
CPC A61B 17/8625 (2013.01) [A61B 17/7035 (2013.01); A61B 17/7085 (2013.01); A61B 17/863 (2013.01); A61B 17/864 (2013.01); A61B 17/8605 (2013.01); A61B 17/8635 (2013.01); A61B 17/1671 (2013.01); A61B 17/8685 (2013.01); A61B 2090/037 (2016.02)] 15 Claims
OG exemplary drawing
 
1. A bone screw, comprising:
an elongate shank defining a central longitudinal axis, the elongate shank having a proximal end, a distal end, and a distal facing surface, the distal facing surface having an oblong shape with first and second curved edges extending along opposed sides thereof, the first and second curved edges each having a concave region and a convex region; and
a plurality of threads formed on the elongate shank, each thread having a proximal surface and a distal surface, and each thread terminating at the distal end in a leading cutting edge formed along the concave region and positioned radially outward of the central longitudinal axis, the distal surface of each thread terminating prior to the leading cutting edge, and each leading cutting edge being defined by an intersection of the distal facing surface of the shank and the proximal surface of the corresponding thread.