Abstract: Arthrodesis apparatus for first and second bones (2, 3), comprising a nail (5) and an instrument (20) for putting the nail (5) into place, the instrument comprising a base (21) and compression means (22, 23) comprising control means (22) for causing the nail to move relative to the base (21) and holder means (23) for holding the second bone (3) relative to the base (21); a guide (11) for the nail, the guide (11) and the holder (23) being arranged and shaped to cooperate together in such a manner to as allow the nail to move relative to the holder (23) and move the first bone (2) and the second bone (3) towards each other.

Abstract: A surgical device for treating the pathology of flat feet, the device comprising an outer casing; and an expansion member suitable for moving inside said outer casing in a compression direction, for causing said outer casing to expand radially; the surgical device being provided with non-return check means shaped to allow the expansion member to move in the compression direction towards an operating position inside the outer casing and to oppose movement of the expansion member in the reverse direction once said operating position is reached, so as to prevent the expansion member from being expelled.

Abstract: The invention relates to an ankle prosthesis including a talar implant, a tibial implant, and an intermediate implant designed to be mounted to move relative to said talar implant in order to impart mobility to the ankle, said prosthesis further including embedded adjustment structure designed to alternate between a releasing state, in which they allow the intermediate implant to move relative to the tibial implant, and a locking state, in which they hold the prosthesis in the chosen assembly configuration, said prosthesis being characterized in that said adjustment structure can be controlled to be operable while the prosthesis is in the assembled state in vivo.

Abstract: Disclosed herein is a device destined to be coupled to at least one support, and in particular a surgical implant destined to be coupled to a bone. The invention relates generally to a device (1) including a fixing element (3) including a head (3A) and a pin (3B) destined to be anchored in a support. The device further includes an assembly part (4) including a through hole (5), and a ring (6) housed in a manner that can be oriented within the through hole (5). The ring (6) has a passage (6A) shaped so as to allow passage of the pin (3B) and to stop the head (3A). The ring (6) is expandable according to its axial direction between a configuration wherein the ring (6) can be oriented and a configuration wherein the ring (6) is blocked.

Abstract: The invention provides an osteosynthesis and compression screw that is self-boring and self-tapping for the purpose of coaptation of small bone fragments. The screw comprises: a proximal portion formed by a screw head provided with an outside thread; an intermediate portion having no thread; and a distal portion provided with an outside thread. Wherein: each of the screw head and the distal portion includes at least one groove, firstly extending over the entire axial length of its thread, and secondly being formed through each thread in such a manner to form tapping means; and the terminal zone of the distal portion is provided with preparation means for preparing a housing in the bone fragments for receiving the intermediate and distal portions of the screw.

Abstract: An ancillary device for positioning a bone graft between bones separated by an articular slot, to ensure arthrodesis of a joint, wherein the bone graft is placed in a recess provided at the end of one or more bones defining the articular slot, and comprising means for driving the bone graft, provided with support means on the bone graft suitable for moving the latter in the recess, and actuation means, functionally connected to the driving means, and capable of being handled in order to control the movement of the bone graft.

Abstract: The invention provides an osteosynthesis and compression screw that is self-boring and self-tapping for the purpose of coaptation of small bone fragments. The screw comprises: a proximal portion formed by a screw head provided with an outside thread; an intermediate portion having no thread; and a distal portion provided with an outside thread. Wherein: each of the screw head and the distal portion includes at least one groove, firstly extending over the entire axial length of its thread, and secondly being formed through each thread in such a manner to form tapping means; and the terminal zone of the distal portion is provided with preparation means for preparing a housing in the bone fragments for receiving the intermediate and distal portions of the screw.

Abstract: Arthrodesis apparatus for first and second bones (2, 3), comprising a nail (5) and an instrument (20) for putting the nail (5) into place, the instrument comprising a base (21) and compression means (22, 23) comprising control means (22) for causing the nail to move relative to the base (21) and holder means (23) for holding the second bone (3) relative to the base (21); a guide (11) for the nail, the guide (11) and the holder (23) being arranged and shaped to cooperate together in such a manner to as allow the nail to move relative to the holder (23) and move the first bone (2) and the second bone (3) towards each other.

Abstract: The invention relates to a plate for fixing the bones of a joint, in particular of a metatarso-phalanageal joint, for the purpose of performing arthrodesis, wherein: the plate comprises two sections, respectively a proximal section and a distal section, each section having a respective longitudinal axis of symmetry S1, S2 such that the projection onto a horizontal plane of tie axis of symmetry S2 of the distal section presents an angle of inclination relative to the projection of the axis of symmetry S1 of the proximal portion, the projections intersecting at a point A; and the projection onto a vertical plane of the axis of symmetry S2 presents an angle of inclination relative to the projection of the axis of symmetry S1, their intersection taking place at a point A2 which is distinct from the point A1.

Abstract: A medical implant interposable between a first bone and a second bone in order to support the first and second bones substantially joined one to the other, so as to obtain bony fusion of the first and second bones. Also disclosed is a surgical kit comprising an implant and a surgical instrument for bony preparation. Also disclosed is a method for manufacturing a medical implant.

Abstract: A plate for fixing the bones of a joint, in particular of a metatarso-phalangeal joint, for the purpose of performing arthodesis. The plate comprises two sections, respectively a proximal section and a distal section, each section having a respective longitudinal axis of symmetry S1, S2 such that the projection onto a horizontal plane of the axis of symmetry S2 of the distal section presents an angle of inclination relative to the projection of the axis of symmetry S1 of the proximal portion, the projections inserting at a point A. The projection onto a vertical plane of the axis of symmetry S2 presents an angle of inclination relative to the projection of the axis of symmetry S1, their intersection taking place at a point A2 which is distinct from the point A1.

Abstract: The invention provides a guide for angularly positioning bones in a joint in order to perform arthrodesis, the guide comprising: a base for positioning on the joint, and having an adjustment shaft whose position is designed to be adjusted so as to be substantially vertically above a fixed first geometrical reference point R of the joint; and an adjustment assembly mounted to slide axially and in rotation on the adjustment shaft to adjust respectively a height for the assembly relative to the first geometrical reference point R and a first angle &agr; for the assembly about said axis, said adjustment assembly being formed by an angular adjustable member which can be positioned on a graduated piece to adjust a second angle &bgr; centered on the first geometrical reference point R, but situated in a plane different from the first angle &agr;. The guide is suitable for metatarso-phalangeal positioning.

Abstract: A surgical device for holding together and aligning at least two pieces of bone, the device comprising: a surgical pin suitable for being implanted axially in the pieces of bone to be held together; and a protective plug provided with a through channel for enabling it to be engaged on the pin, said plug including a locking orifice in which locking element can be inserted; wherein: the locking orifice is made in such a manner as to open out into the through channel so as to form a surface S; and the locking element presents a matching cross-section such that on being inserted into the locking orifice it can lock the plug relative to the pin.

Abstract: The invention provides a guide for angularly positioning bones in a joint in order to perform arthrodesis, the guide comprising:

Abstract: A surgical device for holding together and aligning at least two pieces of bone, the device comprising:

Abstract: An osteosynthesis screw comprising both a screw shank, having a thread with a distal zone and a proximal zone, and a screw head for threading on the screw shank and for co-operating with its proximal zone via internal tapping complementary to the thread of the shank is suitable for applying compression to bone fragments. The screw head also has an outside thread at a pitch that is smaller than the pitch of the screw shank, wherein the distal zone and the proximal zone are separated by a central zone shaped to be inactive during screwing so as to form a sliding zone for the bone fragments to be put into compression.