Receiving part of a bone anchoring device and bone anchoring device with such a receiving part

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United States of America Patent

PATENT NO 9913665
SERIAL NO

15177665

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Abstract

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A receiving part of a bone anchoring device is provided, where the receiving part includes a first end, a second end opposite to the first end, a central axis extending through the first end and the second end, and a substantially U-shaped-recess adjacent to the first end for receiving a spinal fixation element. The substantially U-shaped recess forms two free legs. The receiving part also includes a bore extending from the first end towards the second end and in communication with the substantially U-shaped recess. A groove is provided in an outer surface of each of the legs, where the groove has a first end and a second end and extends in a circumferential direction in an arcuate shape between the first end of the groove and the second end of the groove. In a plane that includes the central axis and that extends through a center of each leg, a contour of a surface of the groove has at least a first arcuate portion and a second arcuate portion opposing the first arcuate portion, where the contour is substantially free from straight portions.

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Patent Owner(s)

Patent OwnerAddress
BIEDERMANN TECHNOLOGIES GMBH & CO KGJOSEFSTRASSE 5 DONAUESCHINGEN 78166

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Biedermann, Lutz VS-Villingen, DE 483 40080
Biedermann, Timo Trossingen, DE 138 926
Matthis, Wilfried Weisweil, DE 312 16967

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