摘要:
The invention relates to a device for joining a longitudinal support (11) with a bone fixation means (1), in particular a pedicle screw. Said device comprises: A) a joining piece (5) having a coaxial hollow area (8), which passes through said joining piece (5) from the upper end (6) to the lower end (7) and tapers to the lower end (12) by means of at least one shoulder (9) as well as a channel (10), which passes through said joining piece (5) perpendicularly to the longitudinal axis (2) for receiving a longitudinal support (11); B) a cap (12) and C) clamping means (13), which can be joined to the rear end (19) of said cap (12) and by means of which a longitudinal support (11) can be fixed within said channel (10), whereby D) complementary locking means (21), engaging into each other for attaching the cap (12) to the joining piece (5), are externally arranged on said joining piece (5) and in the second hollow area (18) in said cap (12).
摘要:
The invention relates to a device for linking a longitudinal support (11) with a bone or a bone fragment. The inventive device comprises the following elements: A) a bone fixation device (1) with a lower part (3) to be immobilized on a bone and an upper part (2) to be linked with a longitudinal support (11); and B) a locking ring (15) that can be coaxially displaced on the upper part (2) and that is provided with a center bore (22) having a diameter d; C) the upper part (2) comprises a channel (12) that is open at the upper end (13) of the upper part (2) and that has a channel axis (21) for receiving a longitudinal support (11) running at an angle to the longitudinal axis (5) and two tongues (19) that can be elastically deformed at an angle to the channel axis (21); D) the locking ring (15) can be displaced into a first position in which the two tongues (19) can be forced against the channel axis (21); and E) the upper part (2) comprises between its lower end (14) and the channel (12) a groove (8) having a core diameter DK1 and being concentric to the center axis (5), the core diameter DK1 of the groove (8) being smaller than the diameter d of the center bore (22) in the locking ring (15).
摘要:
The invention relates to a device for joining a longitudinal support (11) with a bone fixation means (1), in particular a pedicle screw. Said device comprises: A) a joining piece (5) having a coaxial hollow area (8), which passes through said joining piece (5) from the upper end (6) to the lower end (7) and tapers to the lower end (12) by means of at least one shoulder (9) as well as a channel (10), which passes through said joining piece (5) perpendicularly to the longitudinal axis (2) for receiving a longitudinal support (11); B) a cap (12) and C) clamping means (13), which can be joined to the rear end (19) of said cap (12) and by means of which a longitudinal support (11) can be fixed within said channel (10), whereby D) complementary locking means (21), engaging into each other for attaching the cap (12) to the joining piece (5), are externally arranged on said joining piece (5) and in the second hollow area (18) in said cap (12).
摘要:
The invention relates to a device for linking a longitudinal support (11) with a bone or a bone fragment. The inventive device comprises the following elements: A) a bone fixation device (1) with a lower part (3) to be immobilized on a bone and an upper part (2) to be linked with a longitudinal support (11); and B) a locking ring (15) that can be coaxially displaced on the upper part (2) and that is provided with a center bore (22) having a diameter d; C) the upper part (2) comprises a channel (12) that is open at the upper end (13) of the upper part (2) and that has a channel axis (21) for receiving a longitudinal support (11) running at an angle to the longitudinal axis (5) and two tongues (19) that can be elastically deformed at an angle to the channel axis (21); D) the locking ring (15) can be displaced into a first position in which the two tongues (19) can be forced against the channel axis (21); and E) the upper part (2) comprises between its lower end (14) and the channel (12) a groove (8) having a core diameter DK1 and being concentric to the center axis (5), the core diameter DK1 of the groove (8) being smaller than the diameter d of the center bore (22) in the locking ring (15).
摘要:
The invention relates to a device for joining a bone fixation element to a longitudinal rod. Said device comprises: A) a plate-shaped transversal connector (3) with a plate top side (5) for placing against a longitudinal rod (1) and with a cavity (7) that passes through said transversal connector (3); B) a clamping jaw (10), which can be resiliently compressed and which can be accommodated inside the cavity (7), and; C) a tightening means (12), which is provided for radially spreading the clamping jaw (10) inside the cavity (7), whereby; D) the transversal connector (3) comprises a boring (19), which passes through the transversal connector (3) from the plate top side (5) to the plate bottom side (6) and which is located at a distance (31) from the cavity (7). The inventive device also comprises: E) a longitudinal rod connector (13), which can be accommodated inside the boring (19) and which is provided with a channel (17) for accommodating a longitudinal rod (1), and; F) fixing means (33) for detachably fixing a longitudinal rod (1) that can be inserted into the channel (17), and for detachably fixing the longitudinal rod connector (13) with regard to the transversal connector (3), and such that; G) when the fixing means (33) is loosened, the transversal connector (3) is arranged in a manner that permits it to rotate with the longitudinal rod connector (13) about the central axis (14).