BIEDERMANN TECHNOLOGIES GMBH & CO. KG Patent applications |
Patent application number | Title | Published |
20160135847 | RECEIVING PART FOR RECEIVING A ROD FOR COUPLING THE ROD TO A BONE ANCHORING ELEMENT - A receiving part for receiving a rod for coupling the rod to a bone anchoring element includes a receiving part body including a first end and a second end, and having a substantially U-shaped recess at the first end forming a channel for receiving the rod, and an accommodation space for accommodating a head of the bone anchoring element, the accommodation space having an opening at the second end for introducing the head; and a pressure element arranged at least partially in the accommodation space, the pressure element including a first section having a second recess for receiving the rod, and a second section having a flexible portion to clamp the head, the first section and the second section being fixed relative to each other, wherein said pressure element is insertable from the opening. | 05-19-2016 |
20160066961 | BONE ANCHORING DEVICE - A bone anchoring device includes an anchoring element having a shaft and a head; a receiving part for receiving the head and a rod, the receiving part being formed in one piece and having a top end and a bottom end, a bore extending from the top end to the bottom end, an inner wall defined by the bore, a substantially U-shaped channel adjacent to the top end for receiving the rod and a seat adjacent to the bottom end for accommodating the head; a pressure element; and a spring element having a spring force. The anchoring element is inserted from the top end and is pivotable with respect to the receiving part. The pressure element is movable in the bore so as to be able to fix the anchoring element at an angle with respect to the receiving part by exerting pressure onto the head. The spring element acts between the pressure element and the receiving part and allows the pressure element to be introduced from the top end but withstands against removal of the pressure element through the top end. | 03-10-2016 |
20160066959 | BONE ANCHORING DEVICE - A bone anchoring device includes an anchoring element having a shaft and a head; a receiving part having a top end, a bottom end, a rod recess, a coaxial bore, and a seat; and a pressure element that is movable within the bore. The head is pivotable with respect to the receiving part and can be fixed at an angle by exerting pressure via the pressure element onto the head. The pressure element has an outer wall portion having a recess or a projection. The receiving part has an inner wall portion having a recess or a projection that cooperates with the recess or projection of the pressure element. The pressure element is configured to assume a first position within the receiving part in which the recess and the projection interact to allow the pressure element to exert a preload onto the head and the head is prevented from freely pivoting but is not locked. | 03-10-2016 |
20160066957 | 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. | 03-10-2016 |
20160045228 | RECEIVING PART FOR RECEIVING A ROD FOR COUPLING THE ROD TO A BONE ANCHORING ELEMENT AND A BONE ANCHORING DEVICE WITH SUCH A RECEIVING PART - A receiving part for receiving a rod for coupling the rod to a bone anchoring element, the receiving part including: a receiving part body having a channel for receiving a rod and defining an accommodation space for accommodating a head of a bone anchoring element, the accommodation space having an opening for inserting the head; and a pressure element at least partially in the accommodation space, the pressure element including a first portion having a recess to receive the rod, and a second portion having a flexible portion to clamp the head, wherein the pressure element is moveable along a longitudinal axis of the receiving part body from an inserting position to insert the head, to a pre-locking position to clamp the head in the receiving part by a pre-stress exerted by the pressure element, to a locking position to lock the head in the receiving part. | 02-18-2016 |
20160038193 | 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. | 02-11-2016 |
20160022322 | BONE ANCHORING DEVICE - A bone anchoring device includes a shank to be anchored in a bone or vertebra, a head, and a receiving part receiving the head for connecting the shank to a rod. The shank and the head are separate parts. The head has a bore with a cylindrical inner surface, a ring-shaped groove provided on the inner surface, and at least one slit extending from the inner surface to the outer surface of the head. The shank has a first portion for anchoring in the bone or vertebra and a second portion with a cylindrical outer surface adjoining a free end. A projection is provided on the cylindrical outer surface which engages with the ring-shaped groove of the head, when the cylindrical second portion of the shank is inserted in the bore of the head. | 01-28-2016 |
20160000470 | 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. | 01-07-2016 |
20150313646 | 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. | 11-05-2015 |
20150272630 | BONE ANCHORING DEVICE - A bone anchoring device includes a receiving part for receiving a rod, the receiving part having a first bore coaxial with a longitudinal axis and a second bore. The bone anchoring device also includes an anchoring element having a first end for insertion into the bone and a second end positionable within a second bore, the second end having a spherically shaped surface portion. The bone anchoring device further has a locking device provided to the second bore of the receiving part The locking device protrudes from an inner wall of the second bore and engages with a recessed surface portion of the second end of the anchoring element, such that the anchoring element is pivotable relative to the receiving part around a single axis of rotation. The locking device may comprise pins inserted into through holes formed in the receiving part, which engage with the recessed surface portion of the second end. | 10-01-2015 |
20150272629 | RECEIVING PART FOR RECEIVING A ROD FOR COUPLING THE ROD TO A BONE ANCHORING ELEMENT AND A BONE ANCHORING DEVICE WITH SUCH A RECEIVING PART - A receiving part for coupling a rod to a bone anchoring element includes a receiving part body including a rod receiving portion having a channel for receiving a rod, and a head receiving portion for accommodating a head of a bone anchoring element, the head receiving portion having an open end and being flexible for inserting and clamping of the head; and a locking ring around the head receiving portion, wherein in a pre-locking position, a spring portion on one of the locking ring or the receiving part body engages a corresponding portion on the other one of the locking ring or the receiving part body, and the locking ring exerts a first force onto the head receiving portion, and wherein in a locking position, the locking ring exerts a second force greater than the first force onto the head receiving portion to lock the head therein. | 10-01-2015 |
20150238232 | ELASTIC ELEMENT FOR THE USE IN A STABILIZATION DEVICE FOR BONES AND VERTEBRAE AND METHOD FOR THE MANUFACTURE OF SUCH ELASTIC ELEMENT - A stabilization device for bones or vertebrae comprises a substantially cylindrical elastic element. The elastic element has a first end and a second end opposite to the first end. An elastic section extends between the first end and the second end. The elastic section includes at least first and second helical coils. The first and second helical coils are arranged coaxially so that the first helical coil extends at least in a portion between the second helical coil. The elastic element may form, for example, a portion of a rod, bone anchoring element, or plate. | 08-27-2015 |
20150209085 | BONE ANCHORING DEVICE - A bone anchoring device includes a bone anchoring element having a shaft for anchoring in the bone and a head; and a receiving part for coupling a rod to the bone anchoring element. The receiving part includes a first portion with a first end and a second end and a U-shaped recess for receiving the rod, the recess extending from the first end in the direction of the second end thereby forming two free legs and a second portion at the side of the second end opposite to the first end for accommodating the head, the second portion having a free end and being flexible so as to allow introduction and clamping of the head. The bone anchoring device also includes a locking ring embracing the second portion. The head is locked by means of exerting pressure with the rod onto the locking ring resulting in compression of the second portion of the receiving part and wherein the locking ring is mounted to the receiving part from the free end of the second portion. | 07-30-2015 |
20150196329 | BONE SCREW - A bone screw having a screw member possessing a threaded section and a head and a receiving part at the head end for receiving a rod to be connected to the bone screw is provided. The receiving part has on open first bore and a substantially U-shaped cross-section having two free legs provided with a thread. Furthermore, the receiving part has a second bore on the end opposite to the first bore whose diameter is greater than that of the threaded section and smaller than that of the head. On the bottom of the first bore a seat for the head is provided. In order that the screw member can be pivoted to at least one side by an enlarged angle, the edge bounding the free end of the second bore viewed relative to the axis of the first bore is of asymmetric construction. | 07-16-2015 |
20150094776 | BONE SCREW - A bone screw having a screw member possessing a threaded section and a head and a receiving part at the head end for receiving a rod to be connected to the bone screw is provided. The receiving part has on open first bore and a substantially U-shaped cross-section having two free legs provided with a thread. Furthermore, the receiving part has a second bore on the end opposite to the first bore whose diameter is greater than that of the threaded section and smaller than that of the head. On the bottom of the first bore a seat for the head is provided. In order that the screw member can be pivoted to at least one side by an enlarged angle, the edge bounding the free end of the second bore viewed relative to the axis of the first bore is of asymmetric construction. | 04-02-2015 |
20150088209 | BONE ANCHORING ELEMENT - A bone anchoring element includes a shaft for anchoring in a bone, the shaft having a tubular body. The shaft comprises a plurality of barb elements, wherein each barb element is formed as continuous one-piece part with the tubular body. Each each barb element is moveable between a first position adjacent to the tubular body and a second position further from the tubular body than the first position. The barb elements are arranged along at least one helical line around an axis of the shaft. | 03-26-2015 |
20150032211 | FLEXIBLE SPACE HOLDER - A flexible space holder made of at least one biocompatible, rigid material having a tube-like body, with one or more flexible areas is described. The flexible space holder can be temporarily or permanently inserted into a human or animal. Furthermore, the flexible space holder can be surrounded by an elastomeric sleeve. Alternatively, an elastic core can be inserted into the center of the flexible space holder. | 01-29-2015 |
20140379031 | BONE ANCHORING DEVICE AND STABILIZATION DEVICE FOR BONE PARTS OR VERTEBRAE COMPRISING SUCH A BONE ANCHORING DEVICE - A stabilization device for bone parts or vertebrae includes two bone anchoring devices for anchoring in the bone parts or vertebrae. At least one of the bone anchoring devices includes an anchoring element with an anchoring section for anchoring in a bone part or a vertebra and a head, and a receiving part for receiving a stabilization rod. The receiving part has a seat for receiving the head so that the head can pivot with respect to the receiving part. The stabilization device includes a first pressure element which is movable in the receiving part so that it can be pressed onto the head to lock the angular position of the head. The stabilization device includes at least two stabilization rod sections, and at least two guiding channels within the receiving part which have a distance from each other for guiding through the at least two stabilization rod sections so that the rod sections do not touch each other. | 12-25-2014 |
20140350607 | LOCKING ASSEMBLY FOR A POLYAXIAL BONE ANCHORING DEVICE - A locking assembly for securing a rod in a polyaxial bone anchoring device includes a first locking element having a first end, a second end, an outer surface with an external advancement structure, an inner wall, an internal advancement structure on the inner wall, and an engagement portion for a tool, and a second locking element having a first end configured to be oriented towards the first end of the first locking element, an opposite second end, an outer surface with an external advancement structure configured to cooperate with the internal advancement structure of the first locking element, and a portion at the second end having a width greater than a greatest width of the external advancement structure of the second locking element, wherein the second locking element is configured to move axially relative to the bone anchoring device at a speed different than the first locking element. | 11-27-2014 |
20140350606 | ANCHORING ELEMENT AND STABILIZATION DEVICE FOR THE DYNAMIC STABILIZATION OF VERTEBRAE OR BONES USING SUCH ANCHORING ELEMENTS - An anchoring element for a stabilization device for bones or vertebrae, with which a bone or vertebra can be connected to a rod-shaped element is described. By providing for at least one degree of rotational freedom between the rod and an anchoring element that is firmly connected to the bone or vertebra, the transfer of torque (M) onto the anchoring element and can be prevented as well as loosening or even separation of the bone anchoring element from the bone or vertebra. Moreover, the invention provides a stabilization device, in which such bone anchoring elements are used. | 11-27-2014 |
20140330323 | BONE ANCHORING DEVICE - A bone anchoring device includes an anchoring element having a shaft and a head; a receiving part for receiving the head and a rod, the receiving part being formed in one piece and having a top end and a bottom end, a bore extending from the top end to the bottom end, an inner wall defined by the bore, a substantially U-shaped channel adjacent to the top end for receiving the rod and a seat adjacent to the bottom end for accommodating the head; a pressure element; and a spring element having a spring force. The anchoring element is inserted from the top end and is pivotable with respect to the receiving part. The pressure element is movable in the bore so as to be able to fix the anchoring element at an angle with respect to the receiving part by exerting pressure onto the head. The spring element acts between the pressure element and the receiving part and allows the pressure element to be introduced from the top end but withstands against removal of the pressure element through the top end. | 11-06-2014 |
20140316469 | ROD-SHAPED IMPLANT ELEMENT WITH FLEXIBLE SECTION - A rod-shaped implant element for the connection of bone anchoring elements includes at least one rigid section that is configured to be placed in a receiver member of a bone anchoring element and a flexible section that is adjacent to the rigid section. The flexible section and the rigid section are formed as a continuous one-piece element. | 10-23-2014 |
20140303673 | LOCKING DEVICE FOR LOCKING A ROD-SHAPED ELEMENT IN A RECEIVING PART OF A BONE ANCHOR AND BONE ANCHOR WITH SUCH A LOCKING DEVICE - A locking device includes a first locking member including a first end, a second end, a central axis, an outer surface with an external thread, a coaxial bore, and an internal thread provided along at least a portion of the bore, and a second locking member including a first end, a second end, and an outer surface with an external thread. When the second locking member is positioned in the first locking member, the second locking member is movable along the central axis by rotating the second locking member. Movement of the second locking member is limited towards the first end of the first locking member by a first stop and towards the second end of the first locking member by a second stop, where at least one of the first stop or second stop is arranged in the bore of the first locking member. | 10-09-2014 |
20140296927 | RECEIVING PART FOR RECEIVING A ROD FOR COUPLING THE ROD TO A BONE ANCHORING ELEMENT AND A BONE ANCHORING DEVICE WITH SUCH A RECEIVING PART - A receiving part for receiving a rod for coupling the rod to a bone anchoring element includes a receiving part body including a rod receiving portion with a channel for receiving a rod, and a head receiving portion for accommodating a head of a bone anchoring element, the head receiving portion having an open end and being flexible so as to allow introduction and clamping of the head, the head receiving portion having an exterior surface with a tapered portion; and a locking ring around the head receiving portion and including an interior surface with a curved portion configured to engage the tapered portion of the exterior surface of the head receiving portion to clamp the head. | 10-02-2014 |
20140257485 | 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. | 09-11-2014 |
20140257410 | BONE ANCHOR WITH PLUG MEMBER AND TOOL FOR INSERTING THE PLUG MEMBER INTO THE BONE ANCHOR - A bone anchor includes a shaft having a first end and a second end, a bore extending from the first end to the second end, and a plug member which is insertable into the bore and guidable through the bore for closing the bore at the second end. The bone anchor is suitable for minimally invasive surgery in such a way a guide wire can be guided through the bone anchor and after the bone anchor has been anchored in the bone the plug member is inserted to close the open end of the bone anchor. A bone cement or a pharmaceutical substance can be introduced into the bone anchor. | 09-11-2014 |
20140243899 | RECEIVING PART FOR RECEIVING A ROD FOR COUPLING THE ROD TO A BONE ANCHORING ELEMENT AND BONE ANCHORING DEVICE WITH SUCH A RECEIVING PART - A receiving part for receiving a rod for coupling the rod to a bone anchoring element includes a receiving part body including: a rod receiving portion with a channel for receiving a rod, and a head receiving portion for accommodating a head of a bone anchoring element, the head receiving portion having an open end and being flexible for inserting and clamping of the head, and an exterior surface with a curved portion; and a locking ring around the head receiving portion, wherein the locking ring has an interior surface with a curved portion for engagement with the curved portion of the exterior surface of the head receiving portion for locking a position of the head relative to the head receiving portion. | 08-28-2014 |
20140222080 | STABILIZATION DEVICE FOR BONES COMPRISING A SPRING ELEMENT AND MANUFACTURING METHOD FOR SAID SPRING ELEMENT - An elastic or flexible element for use in a stabilization device for bones or vertebrae is provided. The elastic or flexible element is provided in the form of an essentially cylindrical body with a first end and a second end opposite thereto, wherein at least one of the opposite ends of the cylindrical body comprises a coaxial bore hole with an internal thread for connecting to a shaft and/or a head of a bone screw or for connecting to a rod section. The present invention further provides a bone anchoring element, e.g. a bone screw, with a shaft for the anchoring in a bone, whereby the shaft comprises an elastic or flexible section which is formed integrally with the shaft or as a separate elastic or flexible element. It is preferable for the elastic section to be implemented in the form of a helical spring. Moreover, the present invention provides a stabilization device for bones, for instance for vertebrae, said device comprising at least one bone anchoring element according to the invention, a second bone anchoring element and a rod or plate connecting the bone anchoring elements. | 08-07-2014 |
20140222079 | BONE ANCHORING DEVICE - A bone anchoring device includes a bone anchoring element having a shaft to be anchored in the bone and a head, a receiving part for receiving a rod to be connected to the bone anchoring element, and a pressure member acting onto the head to lock the position of the head relative to the receiving part, the receiving part is formed in one piece and includes an open first bore with a first bore axis, a recess shaped and sized to receive a rod having a longitudinal axis, and a second bore having a second bore axis. The second bore is in communication with the first bore and is sized to receive the head with a part of the shaft extending through the second bore. The second bore axis includes an angle of approximately 90° with a plane defined by the first bore axis and the longitudinal axis of the rod. | 08-07-2014 |
20140188180 | DYNAMIC BONE ANCHOR - A dynamic bone anchor is provided comprising a longitudinal core member ( | 07-03-2014 |
20140188174 | ANCHORING MEMBER SUITABLE FOR USE IN A POLYAXIAL BONE ANCHORING DEVICE AND POLYAXIAL BONE ANCHORING DEVICE WITH AN ENLARGED PIVOT ANGLE TO ONE SIDE - An anchoring member is provided suitable for use in a polyaxial bone anchoring device, the anchoring member ( | 07-03-2014 |
20140172027 | DYNAMIC BONE ANCHOR AND METHOD OF MANUFACTURING THE SAME - A dynamic bone anchor is provided comprising
| 06-19-2014 |
20140121712 | BONE ANCHORING DEVICE - A bone anchoring device has an anchoring element, a receiving portion, and a pressure element. The anchoring element includes a shank to be anchored in a bone or a vertebra and a head, the head having an exterior surface with a spherical segment-shaped portion. The shank and the head are separate parts. The receiving portion includes a first end, a second end opposite to the first end, a longitudinal axis passing through the two ends, a bore coaxial with the longitudinal axis, and a first region adjacent to the second end for receiving a spherical segment-shaped section of the head. The pressure element exerts pressure on the head to lock the head in the receiving portion. The head has a hollow inner portion to receive a free end portion of the shank and wherein the head and the end portion are formed such that the end portion can be elastically clamped by the head. | 05-01-2014 |
20140121666 | INSTRUMENTS FOR USE WITH A BONE ANCHOR WITH PLUG MEMBER - Instruments for use with a bone anchoring assembly having plug member are disclosed that allow introduction of the plug member and bone cement or other liquid or pasty material into the bone anchor. The bone anchor includes a shaft having a first end and a second end, a channel extending from the first end to the second end, and a plug member which is insertable into the channel and guidable through the channel for closing the channel at the second end. The bone anchor is suitable for minimally invasive surgery in such a way a guide wire can be guided through the bone anchor and after the bone anchor has been anchored in the bone the plug member is inserted to close the open end of the bone anchor. | 05-01-2014 |
20140088709 | SPACE HOLDER FOR VERTEBRAE OR INTERVERTEBRAL DISCS - The present invention concerns a space holder, especially for vertebrae or intervertebral discs for implantation into human or animal organisms, having a cylinder-like body ( | 03-27-2014 |
20140081338 | BONE SCREW - A bone screw is created, with a thread section ( | 03-20-2014 |
20140066986 | DYNAMIC ANCHORING DEVICE AND DYNAMIC STABILIZATION DEVICE FOR BONES, IN PARTICULAR FOR VERTEBRAE, WITH SUCH AN ANCHORING DEVICE - A dynamic anchoring device is described. An element with a shank for anchoring in a bone or a vertebra and with a head connected to the shank is provided with a receiving part for the head and with an elastomeric pressure element acting on the head. The pressure element is formed and located in such a way that, upon a movement of the element from a first angular position of the shank relative to the receiving part into a second angular position, it exerts a return force on the head. Further, a dynamic stabilization device, in particular for vertebrae, is provided. In such a stabilization device, a rod is connected two anchoring devices. At least one of the anchoring devices is constructed as dynamic anchoring element. | 03-06-2014 |
20140058463 | BONE ANCHORING DEVICE - A bone anchoring device includes a receiving part for receiving a rod, the receiving part has a first bore coaxial with a longitudinal axis and a second bore, and an anchoring element having a first end for insertion into the bone and a second end positionable within a second bore, the anchoring element being movable relative to the receiving part in limited angular range about the longitudinal axis, the angles lying in a single plane. The bone anchoring device further includes a fixation element cooperating with the receiving part to lock the anchoring element relative to the receiving part. The anchoring element is pivotable relative to the receiving part around one rotational axis transverse to the longitudinal axis. | 02-27-2014 |
20140052190 | ANCHORING ELEMENT FOR USE IN SPINE OR BONE SURGERY, METHODS FOR USE AND PRODUCTION THEREOF - A shaft for anchoring in a vertebra or bone section is connected to a receiving part which serves to connect to a rod having a pre-determined diameter (D). The receiving part provides a U-shaped recess, forming a channel for the reception of the rod, and two legs. The legs are free on their ends and have a thread that cooperates with a securing element to fix the rod in the receiving part. When inserted into the receiving part, the rod surface facing an end surface is at a pre-determined distance (A) in an axial direction from the end surface. The thread of the legs extends from the end surface a distance that is smaller than or equal to the pre-determined distance (A). Also, an undercut is provided adjacent to the thread whose edge farthest away from the thread is located at a distance (B) from the end surface. | 02-20-2014 |
20140031868 | FLEXIBLE STABILIZATION DEVICE FOR DYNAMIC STABILIZATION OF BONES OR VERTEBRAE - A flexible stabilization device for dynamic stabilization of bones or vertebrae is provided comprising a rod construct including a rod made of an elastomeric material the rod having a first connection section, a second connection section and a third section therebetween, the first and second connection sections being connectable with a bone anchoring device, respectively, and a sleeve provided on at least a portion of the third section of the rod such that at least the first and second connection sections are exposed. | 01-30-2014 |
20140018856 | ROD-SHAPED IMPLANT ELEMENT FOR THE APPLICATION IN SPINE SURGERY OR TRAUMA SURGERY AND STABILIZATION DEVICE WITH SUCH A ROD-SHAPED IMPLANT ELEMENT - A rod-shaped implant element is provided for connecting at least two bone anchoring elements. Each bone anchoring element includes an anchoring section to be anchored in the bone and a receiver member to be connected to the rod-shaped implant element. The rod-shaped implant element includes, a longitudinal axis, at least one first length of a rigid section that is configured to cooperate with and be received in the receiver member, a second length of a flexible section adjacent to the rigid section, a bore coaxial to the longitudinal axis and extending through the rigid section and the flexible section, and a core accommodated in the bore, the core having two opposite ends. At least one end of the core is freely movable in the bore when said flexible section is extended or compressed in a direction of the longitudinal axis. | 01-16-2014 |
20130245688 | IMPLANT FOR STABILIZING BONES OR VERTEBRAE - An implant for stabilizing bones or vertebrae is provided, the implant comprising an implant body ( | 09-19-2013 |
20130228554 | ELASTIC ELEMENT FOR THE USE IN A STABILIZATION DEVICE FOR BONES AND VERTEBRAE AND METHOD FOR THE MANUFACTURE OF SUCH ELASTIC ELEMENT - A stabilization device for bones or vertebrae comprises a substantially cylindrical elastic element. The elastic element has a first end and a second end opposite to the first end. An elastic section extends between the first end and the second end. The elastic section includes at least first and second helical coils. The first and second helical coils are arranged coaxially so that the first helical coil extends at least in a portion between the second helical coil. The elastic element may form, for example, a portion of a rod, bone anchoring element, or plate. | 09-05-2013 |
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 |
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 |
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 |
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 |
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 |
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 |
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 |
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 |
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 |
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 |
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 |
20130110178 | HIGH ANGULATION POLYAXIAL BONE ANCHORING DEVICE | 05-02-2013 |
20130110172 | LOCKING ASSEMBLY FOR A POLYAXIAL BONE ANCHORING DEVICE | 05-02-2013 |
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 |
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 |
20130079831 | CRIMPING TOOL - A crimping tool for producing a polyaxial bone anchoring device ( | 03-28-2013 |
20130072993 | BONE ANCHORING ELEMENT - A bone anchoring element includes a shaft for anchoring in a bone, the shaft having a tubular body. The shaft comprises a plurality of barb elements, wherein each barb element is formed as continuous one-piece part with the tubular body. Each each barb element is moveable between a first position adjacent to the tubular body and a second position further from the tubular body than the first position. The barb elements are arranged along at least one helical line around an axis of the shaft. | 03-21-2013 |
20130072980 | FLEXIBLE STABILIZATION DEVICE INCLUDING A ROD AND TOOL FOR MANUFACTURING THE ROD - A flexible stabilization device for connecting at least two bone anchoring devices which are attached to vertebrae of the spinal column includes a flexible rod made of an elastomer material. The rod has a surface in which at least one recess is provided which is generated by separation of a portion of said elastomer material. | 03-21-2013 |
20130072933 | BONE SCREW AND BONE SCREW WITH HOLDING ELEMENT - A bone screw is provided, with a thread section ( | 03-21-2013 |
20130066428 | FIXATION DEVICE FOR BONES - A fixation device for bones includes a member which has at least one bore for receiving a bone screw, wherein the at least one bore comprises a first internal thread portion. The bone screw has a first shaft section provided with a first external thread portion arranged to cooperate with the internal thread portion of the at least one bore, and a head section having a diameter larger than that of the shaft section to provide a catch arranged to engage with a stop formed in the bore. The bone screw further has a second shaft section which includes a clearance groove extending between the catch of the head section and the external thread of the first shaft section. The clearance groove allows disengagement of the two thread portions, such that the bone screw is prevented from being unscrewed off the bore when it is loosened within the adjacent bone. | 03-14-2013 |
20130066386 | TOOL FOR USE WITH A BONE ANCHOR, IN PARTICULAR FOR SPINAL SURGERY - A tool is provided for use with a bone anchor, wherein the bone anchor has an anchoring section and a receiving portion for receiving a rod to be connected to the anchoring section and a locking element, the tool comprising a tip portion for engaging the locking element; a mechanism to apply torque to the tip portion comprising a drive shaft and a driven shaft coupled by a gear unit, where the drive shaft has a different axis than the driven shaft, and where the driven shaft comprises an engagement portion configured to connect the driven shaft to the gear unit; and a counter-holding portion for engaging the receiving part, wherein the counter-holding portion is rotatable with respect to the tip portion. | 03-14-2013 |
20130066381 | BONE ANCHORING DEVICE - A bone anchoring device is provided that includes an anchoring element with a shank to be anchored in a bone or a vertebra, a connection element for connecting at least two anchoring elements, the connection element being made of an elastic material, a receiving part being connected to the shank for receiving the connection element and connecting the connection element to the shank, a seat for the connection element the seat being provided in the receiving part, and a locking element being engageable with the receiving part for fixation of the connection element in the seat. At least the portion of the connection element which is received in the recess has a substantially smooth-surface. The locking element has an engagement structure which contacts the surface of the connection element in such a way that a form-fit connection is provided. | 03-14-2013 |
20130066376 | POLYAXIAL BONE ANCHORING DEVICE - A polyaxial bone anchoring device includes
| 03-14-2013 |
20130066375 | MODULAR SYSTEM FOR THE STABILIZATION OF THE SPINAL COLUMN - A modular system for stabilization the spinal column or other bones includes a first stabilization element, a second stabilization element to be connected to the first stabilization element, and an outer connection element to connect the first stabilization element to the second stabilization element. An end portion of the first stabilization element and an end portion of the second stabilization element each include a structure engaging with a corresponding structure provided in the outer connection element to establish a form-fit connection. | 03-14-2013 |
20130065698 | INSTRUMENT FOR ASSEMBLING A BONE ANCHORING DEVICE - An instrument for assembling a bone anchoring device includes a shank with a shaft section to be anchored in a bone and a engagement end, a head being separate from the shank and having a through bore, and a receiving part having a first end, a second end and a longitudinal bore extending from the first to the second end, the head being positionable within the bore at the second end. The instrument includes a holding portion arranged to hold a pin, which has a rod section with a length and a diameter suited to fit and extend at least through the bore of the head, and which has a free end portion extending from the rod section such as to project from the bore of the head when the pin is inserted, and configured to engage with the engagement end of the shank. | 03-14-2013 |
20130030477 | RECEIVING PART FOR CONNECTING A SHANK OF A BONE ANCHORING ELEMENT TO A ROD AND BONE ANCHORING DEVICE WITH SUCH A RECEIVING PART - A receiving part for connecting a shank of a bone anchoring element to a rod. The receiving part has a first end, a second end and a recess having a substantially U-shaped cross section. The recess extends from the first end in a direction of the second end forming two legs open at the first end. The recess defines a channel to receive the rod. The channel has a longitudinal axis. The legs have an inner thread to receive a securing element having an outer thread cooperating with the inner thread. The legs are provided with stiffening structures. In one embodiment, the stiffening structures are formed by the wall thickness of the outer edges of the legs being larger than the wall thickness of the legs at a location closest to the central axis of the receiving part. | 01-31-2013 |
20120330362 | BONE ANCHORING DEVICE - A bone anchoring device includes an anchoring element having a shank to be anchored in a bone or a vertebra, a rod for connecting at least two anchoring elements, the rod being made of an elastic material. The bone anchoring device further includes a receiving part being connected to the shank for receiving the rod, a seat for the rod being provided in the receiving part the seat having a rod contacting surface, and a locking device cooperating with the receiving part for fixation of the rod in the seat. The locking device includes a rod contacting surface, wherein the rod contacting surface of the seat and/or the rod contacting surface of the locking device includes an engagement structure for engaging the rod, the engagement structure having an asymmetric cross section. | 12-27-2012 |
20120328394 | ELEMENT WITH A SHANK AND A HOLDING ELEMENT CONNECTED TO IT FOR CONNECTING TO A ROD - An element with a shank ( | 12-27-2012 |