Patent application number | Description | Published |
20130079831 | CRIMPING TOOL - A crimping tool for producing a polyaxial bone anchoring device ( | 03-28-2013 |
20130079833 | BONE ANCHORING ASSEMBLY - A bone anchoring assembly for dynamic stabilization is provided. The bone anchoring assembly includes a bone anchoring element having a head and a shank to be anchored in a bone or a vertebra, a receiving part for receiving a rod, a pressure element and a monolithic locking element. The rod ( | 03-28-2013 |
20130085536 | BONE ANCHORING DEVICE AND TOOL COOPERATING WITH SUCH A BONE ANCHORING DEVICE - A bone anchoring device includes a receiving part including a rod receiving portion with a first end, a second end, and a U-shaped recess for receiving a rod, the recess defining two free legs, and a head receiving portion at the second end for introducing and clamping the head, and a locking ring configured to be arranged around the head receiving portion, the locking ring including an engagement structure for engagement with a tool, the engagement structure defining a width of the locking ring that is greater than a greatest width of the rod receiving portion, wherein the locking ring can assume a locking position exerting a greatest compressive force on the head receiving portion of the receiving part to lock an inserted head, and wherein the locking ring is movable out of the locking position towards the first end of the rod receiving portion. | 04-04-2013 |
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 |
20130150904 | MONOPLANAR BONE ANCHORING DEVICE WITH SELECTABLE PIVOT PLANE - A bone anchoring device is provided including a receiving part for receiving a rod, the receiving part having a longitudinal axis, a first bore coaxial with the longitudinal axis and a second bore; an anchoring element having a first end for insertion into a bone and a second end positionable within the second bore, the second end including a head. The anchoring element is movable relative to the receiving part in a limited angular range about the longitudinal axis, the angular range lying in a single plane. The bone anchoring device further includes a guiding member configured to rotate in the first bore, wherein the head of the anchoring element is connected to the guiding member and wherein a form-fit connection between the head and the guiding member limits the movement of the anchoring element to the single plane. A first locking element acts on the guiding member to fix the rotational position of the guiding member and a second locking element acts on the head to fix the head relative to the receiving part. | 06-13-2013 |
20130158605 | BONE ANCHORING DEVICE AND BONE STABILIZATION DEVICE INCLUDING THE SAME - A bone anchoring device, includes a receiving part for receiving a rod-shaped implant element, the receiving part having a first bore coaxial with a longitudinal axis and extending from a first end of the receiving part, and a recess extending from the first end to accomplish insertion of the rod-shaped implant element. The device further includes a bone screw having a threaded section for insertion into the bone and being fixed at or positionable at a second end of the receiving part and a fixation element provided to the first bore to fixate a rigid section of the rod-shaped implant element. The rigid section of the rod-shaped implant element has a first width, and the recess of the receiving part has a second width. The second width is larger than the first width, such that the recess may accommodate a stepped portion of the rod-shaped implant element that has an increased thickness. | 06-20-2013 |
20130165977 | POLYAXIAL BONE ANCHORING DEVICE - A polyaxial bone anchoring device includes an anchoring element having a shank and a head having an outer surface portion shaped as a segment of a sphere, a receiving part having a seat portion for receiving the head, and a pressure element having a head contacting surface portion having at least two circumferentially distinct projections and defining a recess for holding the head, the recess having a first region configured to receive the head and a second region defined by at least part of one of the projections and having an undersize compared to the shape of the head, such that when the head is held in the recess, the projections extend over a portion of the head with the largest outer diameter, and the head contacting surface portion corresponding to the second region is expanded from a neutral position to clamp the head by friction. | 06-27-2013 |
20130166030 | INTERVERTEBRAL IMPLANT - An intervertebral implant is provided comprising a single piece hollow body with an upper wall configured to engage a first vertebral end plate and a lower wall configured to engage a second vertebral end plate, with two opposite sidewalls connecting the upper wall and the lower wall, respectively, and with a load transmitting part configured to transmit load between the upper wall and the lower wall; wherein the body is configured to assume a compressed condition in which a distance between the upper wall and the lower wall defines a first height (h | 06-27-2013 |
20130172935 | BONE ANCHORING DEVICE - A bone anchoring device includes an anchoring element having a shank to be anchored in a bone or a vertebra, a receiving part connected to the shank the receiving part having a first end opposite to the shank and a second end facing the shank, a longitudinal axis passing through the two ends, a bore coaxial with the longitudinal axis extending from the first end through at least a portion of the receiving part and a substantially U-shaped recess for receiving a rod The U-shaped recess forms two free legs extending in the direction of the first end, the legs are provided with an internal thread. A locking device for securing the rod in the receiving part is provided which includes an external thread cooperating with the internal thread. An engagement structure is provided at the circumference of least a part of the outer surface projecting above the first end of the receiving part, the structure being engageable with a tool in a form-fit manner and wherein a maximum outer diameter of said first locking member in the region of said structure is larger than the inner diameter of the internal thread of the receiving part. | 07-04-2013 |
20130173003 | EXPANDABLE INTERVERTEBRAL IMPLANT - An expandable intervertebral implant includes a front wall, a back wall spaced apart from the front wall, and two side walls connecting the front wall and the back wall at their respective ends. The walls define a space. The implant further includes a bottom face, a top face, at least one engagement member with an engagement surface for engagement with the end plate of a vertebral body, a first adjusting element and a second adjusting element which are supported by a first support member and a second support member, respectively, and which cooperate with the respective support member such that the engagement member is reciprocally movable between a first end position and a second end position. In the first end position, the engagement surface does not project beyond the bottom face or the top face and in the second end position, the engagement surface at least partially projects outwardly beyond the bottom face or the top face. The first and the second support members are coupled by a coupling mechanism. | 07-04-2013 |
20130184755 | STABILIZATION DEVICE FOR STABILIZING BONES OF A VERTEBRA AND ROD CONNECTOR USED THEREFOR - A stabilization device for stabilizing bones of a vertebra includes a first rod, a second rod, a rod connector connecting the first rod and the second rod, the rod connector comprising a receiving portion for receiving the first rod and a fixation element for fixing the first rod in the receiving portion, wherein in the receiving portion a rod contacting surface is provided and wherein the contour of this rod contacting surface has deviations from the contour of the surface of the first rod. The rod connector allows to connect a flexible rod, for example made of an elastomer material, with a rigid rod, made for example of a metal. | 07-18-2013 |
20130184761 | BONE ANCHORING NAIL - A bone anchoring nail is provided having a threadless shaft with a free end, a head opposite to the free end, the head having a substantially U-shaped recess for accommodation of a rod or a rod-shaped element, a longitudinal bore extending through the shaft and opening towards any one of the head and the free end and a plurality of openings extending through the wall of the shaft and being in communication with the bore. The bone anchoring nail allows quick insertion and reliable fixation enhanced by the in-growth of blood vessels. | 07-18-2013 |
20130197586 | BONE ANCHORING DEVICE - A polyaxial bone anchoring device includes a bone anchoring element having a head and a shaft, a receiving part having a head receiving portion, a rod receiving portion, and a bore having a bore axis, and a pressure member movable in the bore and having a first surface for engaging the head, wherein the pressure member is movable to a first position where friction between the first surface and the head generates a preload on the head to maintain the shaft at a temporary angular position relative to the receiving part, and wherein the pressure member is configured to engage the receiving part to generate a holding force for holding the pressure member at the first position without a positive lock, and wherein the pressure member is movable in and out of the first position by applying an axial force on the pressure member greater than the holding force. | 08-01-2013 |