摘要:
A flexible stabilization device for connecting at least two bone anchoring devices (20) which are attached to vertebrae of the spinal column, comprises a flexible rod (10) made of an elastomer material, the rod having a surface in which at least one first recess (12) is provided which is generated by separation of a portion of said elastomer material.
摘要:
A receiving part is provided for receiving a rod for coupling the rod to a bone anchoring element, the receiving part including a receiving part body (5) with a top end (9a) and a bottom end (17b); a rod receiving portion (9) with a channel (12) for receiving the rod (6), and a head receiving portion (17) for accommodating a head (3) of the bone anchoring element, the head receiving portion having an open end (19, 17b) and being flexible so as to allow introduction and clamping of the head; and a locking ring (8) embracing the head receiving portion (17), wherein the locking ring can assume a first position in which it is latched with respect to the receiving part body (5) and in which the head can be introduced into the head receiving portion (17) and a second position in which it is latched with respect to the receiving part body (5) and compresses the head receiving portion such that the head is clamped but is not locked. A method for assembling a bone anchoring device is provided, the method including providing the receiving part body with the locking ring in a first position in which it is latched with respect to the receiving part body and in which the head can be introduced into the receiving part body and can freely pivot therein; inserting the head; and moving the locking ring (8) and the receiving part body (5) relative to each other until the locking ring enters a second position in which it is latched with respect to the receiving part body and in which the bone anchoring element is held in an adjustable angular position but is not fully locked.
摘要:
A receiving part for receiving a rod for coupling the rod to a bone anchoring element is provided, the receiving part including a receiving part body (5) with a rod receiving portion (9) with a channel (12) for receiving the rod, and a head receiving portion (16) for accommodating a head (3) of the bone anchoring element, the head receiving portion (16) having an open end (17) and being flexible so as to allow introduction and clamping of the head; and a locking ring (8) embracing the head receiving portion, wherein the locking ring exerts a force onto the head receiving portion to lock the head therein; wherein the locking ring (8) includes a spring portion (83) which cooperates with a portion (30, 31) of the receiving part body so as to clamp the head in a pre-locking condition.
摘要:
A modular system for stabilization the spinal column or other bones is provided by a first stabilization element (2); a second stabilization element (2', 5, 6, 7) to be connected to the first stabilization element (2); an outer connection element (4a,4b) to connect the first stabilization element to the second stabilization element; wherein an end portion of the first stabilization element and an end portion of the second stabilization element each comprise a structure (23) engaging with a corresponding structure (44) provided in the outer connection element to establish a form-fit connection.
摘要:
A bone anchoring element is provided comprising an anchoring section (41) for anchoring in the bone and a receiving part (43) connected to the anchoring section, wherein the receiving part (43) comprises an opening (45) suitable for accommodation of a stabilization rod (2,20) having a rod axis, the opening (45) being limited perpendicular to the rod axis by two side walls (46a,46b), characterized in that the side walls (46a,46b) comprise guides (47a,47b;47a',47b';470a,470b) orientated parallel to the rod axis for guiding at least one connection rod (3,3',3'') therethrough.
摘要:
A method and a tool for assembling a bone anchoring device are provided, the method including providing the receiving part body with the locking ring (8) in a first position in which it is latched with respect to the receiving part body and in which the head (3) can be introduced into the receiving part body and can freely pivot therein; inserting the head (3); and moving the locking ring (8) and the receiving part body (5) relative to each other until the locking ring (8) enters a second position in which it is latched with respect to the receiving part body (5) and in which the bone anchoring element (1) is held in an adjustable angular position but is not fully locked. The tool is configured for the execution of the steps according to the method.
摘要:
A bone anchoring element is provided comprising an anchoring section (41) for anchoring in the bone and a receiving part (43) connected to the anchoring section, wherein the receiving part (43) comprises an opening (45) suitable for accommodation of a stabilization rod (2,20) having a rod axis, the opening (45) being limited perpendicular to the rod axis by two side walls (46a,46b), characterized in that the side walls (46a,46b) comprise guides (47a,47b;47a',47b';470a,470b) orientated parallel to the rod axis for guiding at least one connection rod (3,3',3'') therethrough.