Patent application number | Description | Published |
20130123860 | POLYAXIAL BONE ANCHORING DEVICE - A polyaxial bone anchoring device includes a bone anchoring element having a shank and a head, a head receiving part having a first end, an open second end, and a hollow interior portion in communication with the open second end for receiving the head therein, the head receiving part being flexible for clamping the head, a locking ring configured to be mounted around the head receiving part and having a rod receiving portion, a cap configured to be connected to the head receiving part, and a locking element configured to extend from the cap to engage an inserted rod, wherein the head is pivotable in and the cap and the locking ring are rotatable relative to the head receiving part, and wherein when the locking element is tightened, an inserted rod and an angular position of the bone anchoring element are locked relative to the head receiving part. | 05-16-2013 |
20130123861 | POLYAXIAL BONE ANCHORING DEVICE - A polyaxial bone anchoring device includes a bone anchoring element having a shank and a head, a head receiving part having a first end, an open second end, and a hollow interior portion for receiving the head therein, a locking ring configured to be mounted around the head receiving part and having a rod receiving portion, a cap configured to be connected to the head receiving part, the cap having a central axis and two opposite legs extending in a direction of the central axis, and a locking element configured to extend from the cap to lock relative positions of the bone anchoring element and an inserted rod relative to the head receiving part, wherein the cap is rotatable relative to the head receiving part between a first position in which the cap is movable and a second position in which the legs engage the head receiving part. | 05-16-2013 |
20130345758 | POLYAXIAL BONE ANCHORING DEVICE - A polyaxial bone anchoring device is provided, comprising a bone anchoring element having a shank, a head, a receiving part for pivotably receiving the head, and a channel for receiving a rod; a pressure member configured to be arranged in the receiving part and to exert pressure onto and lock the head; a locking assembly insertable into the channel, the locking assembly comprising a first locking member having a bore; a second locking member to be provided in the bore, wherein, when the second locking member is rotated, in a first configuration, the first locking member and the second locking member are rotationally fixed relative to each other and the first locking element is advanced to contact the pressure member and in a second configuration, the second locking member is rotatable within the first locking member and the second locking member is advanced to contact the rod. | 12-26-2013 |
20130345761 | POLYAXIAL BONE ANCHORING DEVICE - A polyaxial bone anchoring device is provided comprising a bone anchoring element ( | 12-26-2013 |
20140107708 | INSTRUMENT FOR ASSEMBLING A POLYAXIAL BONE ANCHOR - An instrument for assembling a polyaxial bone anchor is provided, the polyaxial bone anchor including a bone anchoring element ( | 04-17-2014 |
20150032162 | COUPLING ASSEMBLY FOR COUPLING A ROD TO A BONE ANCHORING ELEMENT, KIT OF SUCH A COUPLING ASSEMBLY DIFFERENT ROD RECEIVING ELEMENTS AND BONE ANCHORING DEVICE - An instrument for inserting a bone anchoring element into a bone is provided, the instrument including a shaft ( | 01-29-2015 |
20150105830 | BONE SCREW WITH SELF-CONSTRAINED FLEXIBILITY - A bone screw is provided including a longitudinal core member having a longitudinal axis defining a longitudinal direction and having an outer surface and a helical groove in the outer surface, the groove being defined by opposed sidewalls; and a helical thread body configured to be accommodated in the groove. When the thread body is assembled in the groove of the core member and when the core member is straight, the thread body is configured to abut one opposed sidewall without abutting the other opposed sidewall along a full turn of the thread body, the thread body is configured to slide in the groove between the opposed sidewalls of the helical groove parallel to the longitudinal axis, and a first portion of the thread body that is outside the helical groove has a height greater than a second portion of the thread body that is in the helical groove. | 04-16-2015 |
20150196337 | COUPLING ASSEMBLY FOR COUPLING A ROD TO A BONE ANCHORING ELEMENT, AND POLYAXIAL BONE ANCHORING DEVICE - A coupling assembly is provided for coupling a rod to a bone anchoring element, the coupling assembly ( | 07-16-2015 |