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US 2020/0367952 A1Published application
Bone screw with cutting tip
AssigneeMedos International Sarl
InventorsChris Ramsay, Joseph Peterson
Life of this patent
Estimating the term…
Abstract
Various bone screws configured to be implanted into bone and methods of use are provided. In an exemplary embodiment, a bone screw is provided with an elongate shank having at least two threads thereon, and having a distal facing surface with at least two cutting edges. The cutting edges can be configured to cut bone as the bone screw is rotated into bone, thereby forming a path for the threads.
Claims16
A bone screw, comprising:
- an elongate shank defining a central longitudinal axis, the elongate shank having a proximal end, a distal end with a conical distal tip region that tapers distally inward, and a distal facing surface;
- and
- at least two threads formed on the elongate shank, each thread terminating at the distal end in a leading cutting edge positioned radially outward of the central longitudinal axis and defined by an intersection between a proximal-facing surface of the thread and the distal facing surface of the conical distal tip region.
A bone screw, comprising:
- an elongate shank having a proximal end, a distal end, and a central longitudinal axis extending therebetween, the elongate shank having a major diameter along at least a proximal portion thereof, a conical distal tip region at the distal end that tapers distally inward, and a distal facing surface having an edge defining an outer perimeter of the distal facing surface;
- at least two cutting edges formed along a portion of the outer perimeter of the distal facing surface;
- and
- at least two threads extending along the elongate shank, each thread having a proximal surface and a distal surface, and the proximal surface of each thread terminating at one of the at least two cutting edges.
1 more element
Dependencies are inferred from the claim text.