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US 11,298,169 B2Granted
Bone anchor, kit and method of use
OwnerGad Shmueliinventor
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Abstract
According to an aspect of some embodiments there is provided a bone anchor including an elongated core having a tip at a distal end and coupled to a head at a proximal end, and a segmented helical thread defining one or more gaps therein, each gap defining at least a trailing wall, the trailing wall having a cutting surface including at least one cutting edge. The bone cutting surface and the cutting edge configured to cut bone and guide bone fragments radially inwards. According to an aspect of some embodiments there is further provided a bone anchor kit and a method for implanting the bone anchor in bone.
Claims16
A bone anchor comprising:
- an elongated core having a tip at a distal end and coupled to a head at a proximal end;
- and
- a segmented helical thread defining one or more gaps therein, each gap defining at least a trailing wall, said trailing wall having a cutting surface including at least one cutting edge;
- said bone cutting surface and said cutting edge configured to cut bone and guide bone fragments radially inwards;
- wherein said segmented helical thread comprises wings and said gaps are formed between adjacent consecutive wings and wherein a major radius (r2) of a following second wing is greater at least at said trailing wall than a major radius (r1) of a preceding first wing by at least one dimension (X), expressed by the formula [X=(r2)−(r1)].
2 more elements
Dependencies are inferred from the claim text.