摘要:
The invention provides an intersomatic implant suitable for containing at least one bone graft and for being inserted in the intervertebral space along a predetermined direction. It comprises: a first portion (10) of generally annular shape surrounding an aperture (11) and presenting a top first edge (12) and a bottom first edge (14); and a second portion (16) of elongate shape along its main axis (A) presenting a bottom second edge (18) and a top second edge (20), and interconnecting two facing opposite regions of said first portion (10) along said predetermined direction, thereby dividing said aperture (11) into two housings suitable for containing said bone graft, at least one of said bottom and top second edges projecting from the space defined by said bottom and top first edges (14, 12) of the first portion (10).
摘要:
The invention concerns an implant designed to be placed between a patient's sacrum and the fifth lumbar vertebra. It comprises a linking rod (22), means (24, 26) for fixing each end of the connecting rod on the sacrum, and a wedge (20) whereof one first end co-operates with the spinous process of the fifth lumbar vertebra and a second end co-operates with said linking rod. The invention is characterized in that said linking rod comprises two ends (38, 40) having a common first geometrical axis and a median part (36) connected to said ends, the median part having a second geometrical axis parallel to the first geometrical axis but offset relative thereto, said second end of the wedge co-operating with said median part.
摘要:
The invention concerns an intervertebral wedge designed to be set between two upper and lower adjacent cervical vertebrae (V2, V1), characterized in that it comprises a wedge body and means for maintaining said wedge body pressed against said vertebrae which include a strap (160) and removable and self-locking fixing means (170), for securing the ends of the strap (160a, 160b) to the wedge body (10), said wedge body comprising: a spacer (12) with two opposite ends, a portion of the first end being insertible between said vertebrae (V1, V2); two upper and lower wings linked by their base to the second end of the spacer (12) and which extend on either side thereof, each wing having a front surface (16a, 14a) facing the spacer, capable of being urged to press against the rear part of the upper or lower vertebra plate (V1, V2).
摘要:
The invention concerns an intervertebral implant comprising: an intervertebral wedge (12) which is formed in one piece and has a body (18) with a longitudinal direction, having along this direction a first insertion face (22) and a second face (24), and two recesses (30, 32) arranged at the ends of the body, each recess being defined by a first extension (34) prolonging said insertion face, a second extension (36), and a bottom wall (38); and two fixation links (14, 16), each link having a first end integral with said first extension (34) and a second end that can be fixed to said second face in order to partially surround a spinous process 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, which is at most equal to the height (h') of the second extension that is associated with it and that is between 1 mm and 3 mm.
摘要:
The invention relates to a device for locking two tresses (L1, L2) in the form of ribbons, which can be fixed on a partition (S) of an element, i.e. an intervertebral wedge. It consists of a body having a first surface (42), which is opposite the partition of said element, and a second surface (44). The body comprises: an axial slit (60) opening out into the two surfaces of the body, two side slits (62, 64), wherein each side slit opens out into the two surfaces and the dimensions thereof are such that the tress can pass freely; and two pressure surfaces (54, 56) which are defined in the first surface (42) of the body, wherein each pressure surface extends between one end of the body and the nearest side slit, and one edge of each side slit defines a first edge (A1, A2) with the pressure associated therewith, and the other edge of each side slit defines a second edge (A'1, A'2) with the second surface of the body.
摘要:
The invention relates to an intervertebral implant for the lumbosacral articulation. The inventive implant comprises a wedge (20) which is disposed between a fifth lumbar vertebra (L5) and the sacral vertebra (S1) which is articulated to L5. The upper face of the body of the wedge (21) comprises a groove (30) which is oriented along the mid-plane (M) of said wedge (20) and which can receive the spinous process (10) of the aforementioned lumbar vertebra (L5). According to the invention, a longitudinal housing, which is positioned orthogonally to the aforementioned groove (30), is provided on the lower face and is designed to receive the upper part (14) of the sacral vertebra (S1). The longitudinal housing is defined by an extension (32) and a tab (34) having a greater width than that of the body of the wedge. Moreover, the section of the housing, along the mid-plane (M) of the wedge, takes the general form of a U which is inclined in relation to the base of the groove (30).
摘要:
The invention relates to an intervertebral implant for the lumbosacral joint. The inventive implant comprises a wedge (20) which is disposed between the fifth lumbar vertebra (L5) and the sacral vertebra (S1) which is articulated to L5. The implant also includes a flexible connector (50) comprising: end segments (52) which can be fixed to the sacrum using fixing means, such as pedicle screws (60), and an intermediate part (54) which can co-operate with a linkage system, such as a hook (21), that is provided on the wedge (20) such that the flexible connector (50) connects the wedge to the sacrum. In addition, the flexible connector (50) is tensioned such as to exert a return force on the wedge (20) in the direction of vertebra S1.
摘要:
The invention relates to an intervertebral implant comprising a wedge consisting of a first (12) and second (14) piece, said pieces being provided with mutual assembly means comprising first clipping means (54, 56) which are coupled to one of the pieces; second clipping means (49, 50) which are coupled to the other part, said means being able to cooperated with the first clipping means in order to clip the two parts in an unclippable manner; and means for guiding the two parts (12,14) when they are clipped and comprising: a first guiding set (42,44) which is coupled to one of the pieces and which is substantially non deformable; and a second guiding set (46,48), which is coupled to the other piece and which is substantially non-deformable, in order to cooperate with the first guiding set.