Abstract: Bone nail (1) with a front portion (2), suitable for insertion into the bone and having a free end (3), a rear portion (5) having a free end (6), an outer surface (4); and a nail axis (7); wherein the rear portion (5) has a through hole (8) with a central axis (12) and with an inlet opening (9) located at the rear free end (6) and an outlet opening (10) located on the outer surface (4) of the rear section (5) whereby the through hole (8) is formed for receiving a polyaxial bone screw (11).

Abstract: A bone nail (1) for the heel includes: a front portion (2) determined for insertion into one or more bones (14, 15, 16) or bone fragments of the heel and having a tip (3), and an arc-shaped main portion (4) extending from the front portion (2) and having a rear end (5), wherein the main portion (4) includes a tapered shape such that a cross sectional diameter of the main portion (4) within at least one first section (20) increases towards the rear end (5). According to embodiments, a curvature of the arc-shaped main portion (4) includes a radius of curvature rc which amounts to at least 130 mm. According to other embodiments, the tapered shape is a conical shape.

Abstract: A bone nail (1) for the heel includes: a front portion (2) determined for insertion into one or more bones (14, 15, 16) or bone fragments of the heel and having a tip (3), and an arc-shaped main portion (4) extending from the front portion (2) and having a rear end (5), wherein the main portion (4) includes a tapered shape such that a cross sectional diameter of the main portion (4) within at least one first section (20) increases towards the rear end (5). According to embodiments, a curvature of the arc-shaped main portion (4) includes a radius of curvature rc which amounts to at least 130 mm. According to other embodiments, the tapered shape is a conical shape.

Abstract: A bone nail (1) for the heel includes: a front portion (2) determined for insertion into one or more bones (14, 15, 16) or bone fragments of the heel and having a tip (3), and an arc-shaped main portion (4) extending from the front portion (2) and having a rear end (5), wherein the main portion (4) includes a tapered shape such that a cross sectional diameter of the main portion (4) within at least one first section (20) increases towards the rear end (5). According to embodiments, a curvature of the arc-shaped main portion (4) includes a radius of curvature rc which amounts to at least 130 mm. According to other embodiments, the tapered shape is a conical shape.

Abstract: A bone nail (1) for the heel includes: a front portion (2) determined for insertion into one or more bones (14, 15, 16) or bone fragments of the heel and having a tip (3), and an arc-shaped main portion (4) extending from the front portion (2) and having a rear end (5), wherein the main portion (4) includes a tapered shape such that a cross sectional diameter of the main portion (4) within at least one first section (20) increases towards the rear end (5). According to embodiments, a curvature of the arc-shaped main portion (4) includes a radius of curvature rc which amounts to at least 130 mm. According to other embodiments, the tapered shape is a conical shape.

Abstract: A targeting device for guiding a drill arrangement for forming an arc-shaped bore in an assembly of adjacent bones or bone fragments, comprises a support frame, a pivoting device mounted to the support frame and arranged to receive the drill arrangement and to allow a pivoting movement of the drill arrangement along an arc-shaped path having a predetermined radius of curvature rc around a pivot axis. The support frame is provided with at least three fixation devices each configured to fix a bone or bone fragment of the bone assembly to define a fixed position in space of the bone assembly with respect to the pivoting device when the bone assembly is installed on the support frame.

Abstract: A device for forming a circular arc-shaped bore includes: a stiff circular arc-shaped tube having a central axis; a flexible shaft insertable into the tube; and a head mountable to a first end of the shaft.

Abstract: An osteosynthesis device that is used, in particular, for securing joint fragments and for the temporary splinting of toes, more particularly for treating hammer toes or other malalignments of toes. The device comprises a pin with the center axis and the length. The pin consists largely of a bioresorbable material. The pin has at least in one section of the length a non-circular cross-section that is orthogonal to the center axis and has a radius of curvature.

Abstract: The bone nail is intended for the heel. It comprises a front part (15) that is intended to be inserted in the bone and is provided with a tip (17) and it also comprises a rear part (16) having an end (18). The rear part (16) is rigid at a length of at least 120 mm, starting from the end (18). The bone nail is cured in a plane and the curvature for each infinitesimal section of the bone nail has a curvature radius that is at least 130 mm. The key advantages that can be achieved with the bone nail according to the invention and thanks to the surgical technique that becomes possible with it are the possibility to adjust the heel with high precision relative to the lower leg and knee axis, the avoidance of the risk of an injury to the plantar nerves, and a less invasive implant compared to the known surgical techniques using other nails.

Abstract: A targeting device (1) for guiding a drill arrangement (11, 12) for forming an arc-shaped bore in an assembly of adjacent bones or bone fragments, comprises a support frame (2; 5; 7), a pivoting device (8) mounted to the support frame (2; 5; 7) and arranged to receive the drill arrangement (11; 12) and to allow a pivoting movement of the drill arrangement (11; 12) along an arc-shaped path having a predetermined radius of curvature rc around a pivot axis (9). The support frame (2; 5; 7) is provided with at least three fixation devices (3; 4; 6) each configured to fix one of the bones (14; 15; 16) or fragments of the bone assembly to define a fixed position in space of the bone assembly (14; 15; 16) with respect to the pivoting device (8) when the bone assembly is installed to the support frame (2; 5; 7).

Abstract: A bone nail (1) for the heel includes: a front portion (2) determined for insertion into one or more bones (14, 15, 16) or bone fragments of the heel and having a tip (3), and an arc-shaped main portion (4) extending from the front portion (2) and having a rear end (5), wherein the main portion (4) includes a tapered shape such that a cross sectional diameter of the main portion (4) within at least one first section (20) increases towards the rear end (5). According to embodiments, a curvature of the arc-shaped main portion (4) includes a radius of curvature rc which amounts to at least 130 mm. According to other embodiments, the tapered shape is a conical shape.

Abstract: A device for temporarily splinting toes, especially for the treatment of hammertoes and other defective positions of toes, consisting of a tube composed of a bio-absorbable material and a guide wire. The tube has an inner diameter of d, whereas the guide wire has an external diameter D, such that D<d. The device enables contact between the ball of the toe and the floor to be reestablished.

Abstract: An osteosynthesis device that is used, in particular, for securing joint fragments and for the temporary splinting of toes, more particularly for treating hammer toes or other malalignments of toes. The device comprises a pin with the centre axis and the length. The pin consists largely of a bioresorbable material. The pin has at least in one section of the length a non-circular cross-section that is orthogonal to the centre axis and has a radius of curvature.

Abstract: The bone nail is intended for the heel. It comprises a front part (15) that is intended to be inserted in the bone and is provided with a tip (17) and it also comprises a rear part (16) having an end (18). The rear part (16) is rigid at a length of at least 120 mm, starting from the end (18). The bone nail is cured in a plane and the curvature for each infinitesimal section of the bone nail has a curvature radius that is at least 130 mm. The key advantages that can be achieved with the bone nail according to the invention and thanks to the surgical technique that becomes possible with it are the possibility to adjust the heel with high precision relative to the lower leg and knee axis, the avoidance of the risk of an injury to the plantar nerves, and a less invasive implant compared to the known surgical techniques using other nails.

Abstract: A device for forming a circular arc-shaped bore includes: a stiff circular arc-shaped tube having a central axis; a flexible shaft insertable into the tube; and a head mountable to a first end of the shaft.

Abstract: A device for temporarily splinting toes, especially for the treatment of hammertoes and other defective positions of toes, consisting of a tube composed of a bio-absorbable material and a guide wire. The tube has an inner diameter of d, whereas the guide wire has an external diameter D, such that D<d. The device enables contact between the ball of the toe and the floor to be reestablished.

Abstract: The invention relates to a bone plate that has a longitudinal axis, top and bottom surfaces and plate holes which extend between the two surfaces for receiving bone screws or other fasteners. The bone plate is substantially symmetrical about a middle plane extending between the two surfaces. The symmetry of the bone plate makes it possible to set the bone plate on and fasten it to the bone with either surface facing the bone without affecting the clinical results.

Abstract: The invention relates to a bone plate that has a longitudinal axis, top and bottom surfaces and plate holes which extend between the two surfaces for receiving bone screws or other fasteners. The bone plate is substantially symmetrical about a middle plane extending between the two surfaces. The symmetry of the bone plate makes it possible to set the bone plate on and fasten it to the bone with either surface facing the bone without affecting the clinical results.

Abstract: A lock washer for attaching a bone screw to a bone plate. The lock washer includes a body having a central axis and a borehole having internal threading for receiving the bone screw. The lock washer includes a lower section adapted to abut the surface of a bone, and an upper section shaped to be retained in a plate borehole. An osteosynthetic system including a bone plate having an upper surface, a lower surface to be positioned facing the bone, and a lock washer is also disclosed. In addition, an osteosynthetic bone plate having an upper surface, a lower surface, and boreholes extending through the bone plate from the upper surface to the lower surface is disclosed. Boreholes are provided with hollow protrusions extending beyond the lower surface of the bone plate and having an internal threading for receiving a bone screw.

Abstract: A lockwasher is provided for attaching a bone screw to a bone plate, thus making up an osteosynthetic system. The washer has a threaded screw hole, a lower section with a surface to be applied to a bone and an upper section shaped to be retained in a plate borehole, the lower section being of less than average width than the upper section.