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US 6,589,245 B1Granted
Interference screw
AssigneeKarl Storz GmbH & Co. KG
InventorsAndreas Weiler, Michael Strobel, André Timmermans
Life of this patent
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Abstract
An interference screw serves for anchoring a flexible transplant like a tendon or a ligament in an opening in a bone. The screw has a screw body, a head at one end of said body and a penetrating end at an opposite end of said head and is provided with an outer threading. The outer threading is formed as a sharp threading adjacent to said penetrating end and is formed as a blunt threading in a following region (FIG. 1).
Claims9
An interference screw for anchoring a flexible transplant in an opening in a bone, comprising:
- a screw body,
- a head at one end of said body,
- a penetrating end at an opposite end of said head end,
- an outer threading provided on an outer side of said screw body,
- wherein said outer threading is formed as a sharp threading adjacent to said penetrating end, and is formed as a blunt threading in a following region following said sharp threading, and wherein said sharp threading extends to a maximum core diameter of said screw body, thereby cutting entrance paths for said blunt threading into a wall of said opening within said bone.
2 more elements
Dependencies are inferred from the claim text.