Abstract: A tibial component of a knee prosthesis includes a tibial plate and a tibial insert, and anterior and posterior abutments projecting from an upper face of the tibial plate. The anterior abutment extends along at least part of the tibial plate and the posterior abutment extends for at least part of the tibial plate and comprises a part forming a promontory and an anterior cut-out, in particular central, in the form of a window formed in the anterior abutment opening onto the posterior face of the latter opposite the part forming the promontory. The tibial insert has a face upper, a face lower and a lateral face, which has a shape matching the part forming the promontory, characterised in that at least one flexible tab in the form of a hook projects centrally from an anterior face of the insert and locks by snap-fitting, into the anterior cut-out.

Abstract: A tibial component of a knee prosthesis includes a tibial plate and a tibial insert, and anterior and posterior abutments projecting from an upper face of the tibial plate. The anterior abutment extends along at least part of the tibial plate and the posterior abutment extends for at least part of the tibial plate and comprises a part forming a promontory and an anterior cut-out, in particular central, in the form of a window formed in the anterior abutment opening onto the posterior face of the latter opposite the part forming the promontory. The tibial insert has a face upper, a face lower and a lateral face, which has a shape matching the part forming the promontory, characterised in that at least one flexible tab in the form of a hook projects centrally from an anterior face of the insert and locks by snap-fitting, into the anterior cut-out.

Abstract: Tool holder, in particular a milling cutter holder, which comprises a main body with a substantially oblong cylindrical shape defining a channel in which a transmission passes designed to transmit to the tool, in particular the milling cutter, a movement from the axis of a drive motor, and a gripping element for gripping the tool holder, characterized in that an intermediate part is provided arranged between the transmission and the axis of the drive motor, the intermediate part comprising means for enabling the rotatable connection of said intermediate part to the transmission and the axis of the motor, the intermediate part comprising means forming an abutment designed to lock in translation in the longitudinal direction of displacement of the axis of transmission by abutment in particular against the gripping element.

Abstract: A device for a cup to be received in the cotyl of a hip. The device includes an insert, a gripping means for gripping the insert, a rod for imparting shock, and an impaction head having a surface in contact with a portion of the insert. The rod for imparting shock is designed to be held by a surgeon and is used for the application of an impaction shock to the insert when held by the gripping means opposite the cup to be introduced into the cotyl of a hip. The impaction head having a surface in contact with a portion of said insert and the rod are connected to one another so as form a head and rod assembly joined in rotation. The head and rod assembly is mounted pivotably at a pivot point in relation to the gripping means.

Abstract: Device for inserting an insert (1), made in particular of ceramic material, into a cup designed to be received in the cotyl of a hip, characterised in that it comprises: means (17, 20, 21, 22) for gripping the insert, in particular an upper free edge of the insert; a rod (5,6) designed to impinge on the insert when it is held by the gripping means opposite the hollow part of the cup; and means (32, 33, 34) for imparting a downwards shock to the rod to push the insert into the cup, i.e. introduce it by force to the inside of the cup, said shock imparting means imparting a shock to the rod with a predetermined force.

Abstract: Tool holder, in particular a milling cutter holder, which comprises a main body with a substantially oblong cylindrical shape defining a channel in which a transmission passes designed to transmit to the tool, in particular the milling cutter, a movement from the axis of a drive motor, and a gripping element for gripping the tool holder, characterized in that an intermediate part is provided arranged between the transmission and the axis of the drive motor, the intermediate part comprising means for enabling the rotatable connection of said intermediate part to the transmission and the axis of the motor, the intermediate part comprising means forming an abutment designed to lock in translation in the longitudinal direction of displacement of the axis of transmission by abutment in particular against the gripping element.

Abstract: A device for a cup to be received in the cotyl of a hip. The device includes an insert, a gripping means for gripping the insert, a rod for imparting shock, and an impaction head having a surface in contact with a portion of the insert. The rod for imparting shock is designed to be held by a surgeon and is used for the application of an impaction shock to the insert when held by the gripping means opposite the cup to be introduced into the cotyl of a hip. The impaction head having a surface in contact with a portion of said insert and the rod are connected to one another so as form a head and rod assembly joined in rotation. The head and rod assembly is mounted pivotably at a pivot point in relation to the gripping means.

Abstract: An impaction device (1) intended to impart a blow to a stem, the stem itself being coupled to an element forming an insert intended to be inserted into a receiving element, in particular a ceramic insert in a cup of a cotyloid cavity of a hip; the impaction device (1) including an element (4) forming a barrel defining a channel (5) or an internal chamber that has an opening via which at least part of the stem, in particular a proximal end segment of the stem, can be inserted; means of applying a blow intended to apply to the part of the stem introduced into the chamber a pre-determined blow force; and means (12, 14) for triggering the blow application means.

Abstract: The invention concerns an accessory for removing material, in particular a file (3) or a cutting block, for prosthesis implantation surgery, in particular for hip or knee prostheses. The invention is characterised in that it comprises at least partly one plastic part and at least one insert (4, 10, 5) made of a material harder than the bone material, in particular of metal, which is fixed to the plastic material such that if the device is brought to a temperature Ti, the insert is separated from the plastic material.

Abstract: Surgical instrument for the removal of bone material with a surface from which at least one tooth projects, preferably teeth made from plastic material designed to come into contact with bone to remove a portion thereof, characterized in that the width (1) of the tooth or each tooth (5), that is the smallest width dimension at the level of the said one surface of the instrument from which it projects, is between 1 mm and 7 mm, preferably between 2 mm and 5 mm, more preferably between 3 mm and 4 mm.

Abstract: An impaction device (1) intended to impart a blow to a stem, the stem itself being coupled to an element forming an insert intended to be inserted into a receiving element, in particular a ceramic insert in a cup of a cotyloid cavity of a hip; the impaction device (1) including an element (4) forming a barrel defining a channel (5) or an internal chamber that has an opening via which at least part of the stem, in particular a proximal end segment of the stem, can be inserted; means of applying a blow intended to apply to the part of the stem introduced into the chamber a pre-determined blow force; and means (12, 14) for triggering the blow application means.

Abstract: Device for inserting an insert (1), made in particular of ceramic material, by impaction into a cup (50) designed to be received in the cotyl of a hip, comprising: means (17, 20, 21, 22) for gripping the insert, in particular at an upper free edge of the insert; a rod (5, 6) for the application of shock designed to be held by the surgeon and for the application of an impaction shock to the insert when it is held by the gripping means opposite the cup to be introduced therein; and an impaction head (9) with a surface designed to come in contact with at least one insert part, in particular the inner surface of a hollow of the insert.

Abstract: Device for inserting an insert (1), made in particular of ceramic material, into a cup designed to be received in the cotyl of a hip, characterised in that it comprises: means (17, 20, 21, 22) for gripping the insert, in particular an upper free edge of the insert; a rod (5,6) designed to impinge on the insert when it is held by the gripping means opposite the hollow part of the cup; and means (32, 33, 34) for imparting a downwards shock to the rod to push the insert into the cup, i.e. introduce it by force to the inside of the cup, said shock imparting means imparting a shock to the rod with a predetermined force.

Abstract: Tool holder, in particular a milling cutter holder, which comprises a main body (1) with a substantially oblong cylindrical shape defining a channel in which a transmission (2) passes designed to transmit to the tool, in particular the milling cutter, a movement from the axis of a drive motor, and a gripping element (3) for gripping the tool holder, characterised in that an intermediate part (30) is provided arranged between the transmission (2) and the axis of the drive motor, the intermediate part comprising means for enabling the rotatable connection of said intermediate part to the transmission and the axis of the motor, the intermediate part comprising means (32) forming an abutment designed to lock in translation in the longitudinal direction of displacement of the axis of transmission by abutment in particular against the gripping element.

Abstract: The invention concerns an accessory for removing material, in particular a file (3) or a cutting block, for prosthesis implantation surgery, in particular for hip or knee prostheses. The invention is characterised in that it comprises at least partly one plastic part and at least one insert (4, 10, 5) made of a material harder than the bone material, in particular of metal, which is fixed to the plastic material such that if the device is brought to a temperature Ti, the insert is separated from the plastic material.

Abstract: An accessory for removing material for prostheses surgery including a plastic part and an insert made of a material harder than the bone material, the insert being embedded in the plastic part such that if the device is brought to a selected temperature, the accessory deteriorates itself.

Abstract: Surgical instrument for the removal of bone material with a surface from which at least one tooth projects, preferably teeth made from plastic material designed to come into contact with bone to remove a portion thereof, characterised in that the width (1) of the tooth or each tooth (5), that is the smallest width dimension at the level of the said one surface of the instrument from which it projects, is between 1 mm and 7 mm, preferably between 2 mm and 5 mm, more preferably between 3 mm and 4 mm.

Abstract: File carrier which is intended to carry a file for filing bone of the medullary canal of the femur; a fixed jaw and a movable jaw are arranged at the distal end of the intermediate portion and there are provided means which are intended to control the movement of the movable jaw relative to the fixed jaw between a closed state in which the file is fixed in position on the file carrier and an open state in which the file is released from the file carrier; the position of the movable jaw in the open state is displaced in the mediolateral direction relative to the position of the movable jaw in the closed state.

Abstract: File carrier which is intended to carry a file for filing bone of the medullary canal of the femur; a fixed jaw and a movable jaw are arranged at the distal end of the intermediate portion and there are provided means which are intended to control the movement of the movable jaw relative to the fixed jaw between a closed state in which the file is fixed in position on the file carrier and an open state in which the file is released from the file carrier; the position of the movable jaw in the open state is displaced in the mediolateral direction relative to the position of the movable jaw in the closed state.

Abstract: Femoral component of a knee prosthesis, comprising at least one, preferably two, condyles, on the posterior side; a trochlea part on the anterior side, in the upper surface of which a trochlea trajectory is defined; and a set of planar inner faces, intended to come into contact with corresponding resected faces of the end of a femur, defining an open inner cage on the inner surface of the component, the set of planar faces comprising a first planar anterior end face, a second planar intermediate face and a third planar posterior end face, characterised in that between the planar anterior end face and the planar intermediate face, a dome-shaped surface is formed having its concavity facing the outer side of the component.