摘要:
A backbone osteosynthesis system for anterior fixing comprising first and second arms, each capable of receiving bone screws and a longitudinal plate for rigidly linking the arms, the plate being in one single piece with the first arm. The system comprises a way to adjust the second arm in a longitudinal position on the plate.
摘要:
A device for attaching a flat and flexible band on at least one bone part, comprising the band having two end portions, a rigid base body crossed by an opening, and a retaining part that can be inserted in the opening. The retaining part is at least partially in the shape of a squeezable wedge comprising a central bore for passage of the end portions facing the flexible band, the bore having a transverse cross-section that can be deformed between a first cross-section for free passage of the end portions when the part has not been inserted in the opening and a second cross-section for locking the end portions by compression when the part is entirely or substantially entirely inserted in the opening.
摘要:
The invention provides an intervertebral implant for the lumbo-sacral joint, the implant comprising a spacer suitable for being disposed between the fifth lumbar vertebra L5 and the vertebra S1 of the sacrum that is articulated to the vertebra L5. The implant comprises a flexible tie having end portions suitable for being fastened to the sacrum with the help of fasteners such as pedicular screws. The flexible tie has an intermediate portion suitable for co-operating with a connection system such as a hook provided on the spacer so that the flexible tie connects the spacer to the sacrum. The flexible tie is put under tension in such a manner as to exert a return force on the spacer towards the vertebra S1.
摘要:
A multiaxial connection osteosynthesis system for the spine having a bone anchor, a connector and a connecting member. The bone anchor may be implanted into a vertebral body with a connector being attached to a head of the bone anchor. The connector includes a seat for receiving the connecting member. As the connecting member is locked into position it causes walls of the connector to inwardly deform and lock the head of the bone anchor relative to the connector.
摘要:
The invention concerns a distraction and/or contraction device for backbone surgery comprising connectors designed to be fixed to respective vertebral anchoring members, linkup means between said connectors and means for adjusting the distance between said connectors including a pinion assembly and an endless screw.
摘要:
The invention relates to an intervertebral implant comprising a spacer constituted by first and second parts (12, 14), said parts being provided with mutual assembly means comprising first clip-fastener means (54, 56) secured to one of said parts, second clip-fastener means (49, 50) secured to the other part and suitable for cooperating with the first clip-fastener means to achieve releasable clip-fastening between the two parts, and guide means for guiding the two parts (12, 14) during clip-fastening, said guide means being distinct from the clip-fastening means and comprising: a substantially non-deformable first guide assembly (42, 44) secured to one of said parts; and a substantially non-deformable second guide assembly (46, 48) secured to the other part to co-operate with the first guide assembly.
摘要:
The invention relates to an intervertebral implant comprising: an intervertebral spacer (12) formed as a single part comprising a body (18) having a longitudinal direction, presenting in said direction an insertion first face (22) and a second face (24), and two recesses (30, 32) disposed at the ends of the body, each recess being defined by a first extension (34) extending said insertion face, by a second extension (36), and by an end wall (38); and two fastener ties (14, 16), each tie presenting a first end secured to said first extension (34) and a second end fastenable to said second face to pass around a spinous process in part and hold it in a recess. Each first extension (34) of the body has a height (h) relative to the bottom wall of the recess that is no greater than the height (h′) of the second extension that is associated therewith and that lies in the range 1 mm to 3 mm.
摘要:
Embodiments described herein relate to a connecting member for maintaining the spacing between at least two anchor members screwed into vertebrae and methods for stabilizing the spine using a connecting member. One embodiment of a connecting member can include a first rigid portion, a second rigid portion and a connecting body disposed between the first rigid body and the second rigid body that is more flexible than the first rigid body and the second rigid body. The connecting member can be provided as a preassembled connecting member.
摘要:
The invention relates to a connecting member for maintaining the spacing between at least two anchor members screwed into vertebrae. The connecting member comprises: a flexible part (10) divided into two branches (12, 14), the ends of said branches being interconnected in pairs and defining a first median plane (Pm), and two rigid rod-forming parts (20, 22) each having a fixing first portion (20′, 22′) and a second portion (20″, 22″), each of said second portions (20″, 22″) of said two rigid parts (20, 22) extending respective ends of said branches interconnected in pairs in opposite directions, so that said connecting member, whose fixing portions (20′, 22′) are fixed to respective anchor members, is able to bend elastically in a direction perpendicular to said median plane (Pm).
摘要:
The invention relates to a sequential connection device for connecting together a rod and a screw head having spherical symmetry. The device comprises a first longitudinal part and second longitudinal part suitable for co-operating together. Said first first end presenting a top portion and a curved bottom portion facing said top portion, said bottom portion presenting bottom bearing points against which said screw head can come to bear. Said top portion includes an adjustable thrust disposed facing said bottom portion and spaced apart from said screw head, the adjustable thrust and said bottom bearing point defining a polyhedron inside which the center C of said screw head can be situated.