Abstract: A bone stabilization implant includes a stabilization plate provided with anchor orifices intended to receive bone anchor screws and a locking element secured in rotation to a pivot shaft pivotally mounted in a bore of the plate and movable between a rest position and a locking position of the bone anchor screw. The locking element is integrally disposed inside a recess and its lower face has a central area bearing on a bottom wall of the recess and at least one peripheral area adapted to at least partially cover an anchor orifice in the locking position. The lower face has a convex shape according a radial axis extending radially to its peripheral area.

Abstract: An intersomatic prosthesis with lateral introduction with a prosthesis body symmetrical along a sagittal plane is provided. The intersomatic prosthesis includes a convex anterior lateral wall along an anterior radius of curvature and a convex posterior lateral wall along a posterior radius of curvature larger than the anterior radius of curvature, a right end wall and a left end wall, and a lower bearing wall and an upper bearing wall open onto an inner space. The lower bearing wall has a central lower portion provided with lower teeth having lower bearing tips defining a lower bearing surface which is planar, and the upper bearing wall has a central upper portion provided with upper teeth having upper bearing tips defining an upper bearing surface which is convex.

Abstract: A bone implant including a plate with an orifice extending along a steering axis capable of receiving an anchor screw extending along a screw axis, where a first blocking member is arranged in a first peripheral housing formed in the orifice, and a second blocking member is arranged in a second peripheral housing formed in the orifice and offset relative to the first housing according to the steering axis, and the orifice includes a lower portion providing a bearing with polyaxiality to the anchor screw so that the screw axis can form with the steering axis a screw angle with an adjustable measurement, and the blocking members are elastically deformable between an open configuration, in which they authorize an insertion of the anchor screw, and a closed configuration, in which they prevent an extraction of the anchor screw regardless of the measurement of the screw angle.

Abstract: An interbody distraction and stabilisation device, comprising an implant comprising a casing for containing a filling material and a distraction element that is associated with the casing and that has opposing first and second sides, the distraction element having a first state in which the distraction element has a first height and a second state in which the distraction element has a second height greater than the first height so as to keep body parts spaced apart from each other.

Abstract: An intersomatic prosthesis with lateral introduction with a prosthesis body symmetrical along a sagittal plane is provided. The intersomatic prosthesis includes a convex anterior lateral wall along an anterior radius of curvature and a convex posterior lateral wall along a posterior radius of curvature larger than the anterior radius of curvature, a right end wall and a left end wall, and a lower bearing wall and an upper bearing wall open onto an inner space. The lower bearing wall has a central lower portion provided with lower teeth having lower bearing tips defining a lower bearing surface which is planar, and the upper bearing wall has a central upper portion provided with upper teeth having upper bearing tips defining an upper bearing surface which is convex.

Abstract: A bone stabilization implant includes a stabilization plate provided with anchor orifices intended to receive bone anchor screws and a locking element secured in rotation to a pivot shaft pivotally mounted in a bore of the plate and movable between a rest position and a locking position of the bone anchor screw. The locking element is integrally disposed inside a recess and its lower face has a central area bearing on a bottom wall of the recess and at least one peripheral area adapted to at least partially cover an anchor orifice in the locking position. The lower face has a convex shape according a radial axis extending radially to its peripheral area.

Abstract: This set comprises an intervertebral implant (2) for immobilising a vertebra (100) with respect to another and an instrument (3) for installing this implant; the implant (2) comprises a longitudinal end designed to be connected to the instrument (3), and the instrument (3) comprises a rod (26) having a free distal end (28), wherein the implant (2) is designed to be removably mounted.

Abstract: Embodiments disclosed herein provide a method of implanting an intervertebral disk prosthesis that can be assembled and disassembled in a minimally invasive fashion. The prosthesis comprises a first fixing element having an anchoring first face and a cooperation second face; a second fixing element having an anchoring first face and a cooperation second face; a first prosthesis element having an active first face and a cooperation second face, the cooperation faces of the first fixing element and the first prosthesis element serving to fasten the two elements together; a second prosthesis element having an active first face and a cooperation second face, the cooperation faces of the second fixing element and the second prosthesis element serving to fasten the two elements together; and each of the active faces of the prosthesis elements defining at least a portion of a spherical cap.

Abstract: A device for sectioning a vertebral lamina, which can comprise a base for positioning the device and protecting the medullar canal when sectioning the lamina, sectioning means slide-mounted in the base along a first axis, a first piston slide-mounted in a sleeve of the sectioning means along a second axis secant to the first sliding axis of the sectioning means, a second piston made integral with the first piston and slide-mounted in the base along a third axis, the sectioning means being provided with a cutting element oriented in opposite direction to the second piston with respect to the sleeve, and the sliding of the second piston along the third axis causing the sliding of the sectioning means along the first axis via the first piston.

Abstract: This set comprises an intervertebral implant (2) for immobilising a vertebra (100) with respect to another and an instrument (3) for installing this implant; the implant (2) comprises a longitudinal end designed to be connected to the instrument (3), and the instrument (3) comprises a rod (26) having a free distal end (28), wherein the implant (2) is designed to be removably mounted.

Abstract: A disc prosthesis for vertebrae is provided. The disc prosthesis comprises a first plate, a first insert, a second plate, and a second insert. The first plate comprises a first active face and a first anchor face. The second plate comprises a second active face and a second anchor face. The first anchor face is configured to anchor the first plate to a first vertebra. The second anchor face is configured to anchor the second plate to a second vertebra. The first plate comprises a cavity for receiving the first insert. The cavity comprises a concave spherical cap. The second plate comprises an opening that connects the second active face to the second anchor face. The second insert comprises a fastener portion, said fastener portion is friction fit in the opening.

Abstract: Embodiments disclosed herein provide a method of implanting an intervertebral disk prosthesis that can be assembled and disassembled in a minimally invasive fashion. The prosthesis comprises a first fixing element having an anchoring first face and a cooperation second face; a second fixing element having an anchoring first face and a cooperation second face; a first prosthesis element having an active first face and a cooperation second face, the cooperation faces of the first fixing element and the first prosthesis element serving to fasten the two elements together; a second prosthesis element having an active first face and a cooperation second face, the cooperation faces of the second fixing element and the second prosthesis element serving to fasten the two elements together; and each of the active faces of the prosthesis elements defining at least a portion of a spherical cap.

Abstract: A bridging device for laminoplasty includes a bridge (5) and two attachment arms (7), each attachment arm (7) including a tab ending in a tip and provided with backstop asperities (8), wherein at least one of the attachment arms (7) further includes a blocking device (9) for a cervical blade (2) for clamping the cervical blade (2) between the tab (7) and the blocking device (9), the backstop asperities (8) being provided between the tab (7) and the blocking device (9).

Abstract: Embodiments disclosed herein provide a method of implanting an intervertebral disk prosthesis that can be assembled and disassembled in a minimally invasive fashion. The prosthesis comprises a first fixing element having an anchoring first face and a co-operation second face; a second fixing element having an anchoring first face and a co-operation second face; a first prosthesis element having an active first face and a co-operation second face, the co-operation faces of the first fixing element and the first prosthesis element serving to fasten the two elements together; a second prosthesis element having an active first face and a co-operation second face, the co-operation faces of the second fixing element and the second prosthesis element serving to fasten the two elements together; and each of the active faces of the prosthesis elements defining at least a portion of a spherical cap that is respectively concave or convex.

Abstract: A lumbar inter-spine prosthesis includes a torsion spring with two branches (3, 4) each end of which includes a fixation system (5) for attachment to the apophysis (1) of a vertebra (2).

Abstract: The invention provides an intervertebral disk prosthesis. The prosthesis comprises: a first fixing element having both an anchoring first face for anchoring in one of the vertebrae and a co-operation second face; a second fixing element having both an anchoring first face for anchoring in the other vertebrae and a co-operation second face; a first prosthesis element having both an active first face and a co-operation second face, said co-operation faces of the first fixing element and of the first prosthesis element serving to fasten the two elements together; a second prosthesis element having both an active first face and a co-operation second face, said co-operation faces of the second fixing element and of the second prosthesis element serving to fasten the two elements together; and each of said active faces of the prosthesis elements defining at least a portion of a spherical cap that is respectively concave or convex.

Abstract: A disc prosthesis for vertebrae is provided. The disc prosthesis comprises a first plate, a first insert, a second plate, and a second insert. The first plate comprises a first active face and a first anchor face. The second plate comprises a second active face and a second anchor face. The first anchor face is configured to anchor the first plate to a first vertebra. The second anchor face is configured to anchor the second plate to a second vertebra. The first plate comprises a cavity for receiving the first insert. The cavity comprises a concave spherical cap. The second plate comprises an opening that connects the second active face to the second anchor face. The second insert comprises a fastener portion, said fastener portion is friction fit in the opening.

Abstract: Disclosed is a system for immobilizing two vertebrae, which system includes two screws, and an elongated connecting member and two fastening systems. Each fastening system includes a clamping member and a fastening member consisting of a single ring-shaped piece having a lateral wall around an axial passage. The wall includes a first aperture for the clamping member and a second aperture comprising a first portion and a second portion. The first portion has a rim forming a bearing surface for the screw head. The second portion provides a free passage for the screw head. The axial passage can receive one end of the connecting member and the screw head, whereby (a) the screw head can be freely inserted into the axial passage of the fastening member and (b) the end of the connecting member and the screw head are immobilized by actuating the clamping member.

Abstract: The present invention concerns a device for sectioning a vertebral lamina, characterized in that it comprises a base (4) for positioning the device and protecting the medullar canal when sectioning the lamina, sectioning means (1) slide-mounted in the base (4) along a first axis (A1), a first piston slide-mounted in a sleeve (10) of the sectioning means (1) along a second axis secant to the first sliding axis (A1) of the sectioning means, a second piston (3) made integral with the first piston (2) and slide-mounted in the base (4) along a third axis (A2), the sectioning means (1) being provided with a cutting element oriented in opposite direction to the second piston (3) with respect to the sleeve (10), and the sliding of the second piston (3) along the third axis (A2) causing the sliding of the sectioning means (1) along the first axis (A1) via the first piston (2).

Abstract: Disclosed is a system for immobilizing two vertebrae, which system includes two screws, and elongated connecting member and two fastening systems. Each fastening system includes a clamping member and a fastening member consisting of a single ring-shaped piece having a lateral wall around an axial passage. The wall includes a first aperture for the clamping member and a second aperture comprising a first portion and a second portion. The first portion has a rim forming a bearing surface for the screw head. The second portion provides a free passage for the screw head. The axial passage can receive one end of the connecting member and the screw head, whereby (a) the screw head can be freely inserted into the axial passage of the fastening member and (B) the end of the connecting member and the screw head are immobilized by actuating the clamping member.