Abstract: An intramedullary nail for a fractured elongated bone, comprising a cannulated rod having proximal and distal ends; an outside tubular sleeve for coaxially hosting and guiding the rod; and at least a pair of shape memory elements hosted in corresponding seats at the distal end of the rod. Each shape memory element can be retractably housed in its seat in a first configuration, allowing insertion of the nail into the bone, and can project from a sleeve opening in another configuration. Pairs of transversal holes are provided in proximal portions of the rod and the sleeve. The distal pair of shape memory elements lie on an offset plane to the plane of the proximal holes and are kept in their corresponding seats by a distal cover fixed to the rod. This improves the stability of the nail in the medullary canal.

Abstract: An intramedullary nail for a fractured elongated bone, comprising a cannulated rod having proximal and distal ends; an outside tubular sleeve for coaxially hosting and guiding the rod; and shape memory elements hosted in corresponding seats of the rod. Each shape memory element can be retractably housed in its respective seat in a first configuration, allowing insertion of the nail into the bone, and can project from a sleeve opening in another configuration. Proximal and distal pairs of the elements are provided at the proximal and distal rod ends. The proximal element pair lie on a same plane and are kept in their seats by a proximal cover. The distal element pair lie on an offset plane to the plane of the proximal element pair and are kept in their seats by a distal cover. This removes the need for bone screws to stabilize the nail inside the medullary canal.

Abstract: The invention concerns an intramedullary nail to be inserted into a fractured long bone, for example a femur, comprising: a rod (2) extending between a proximal part (3) and a distal part (4); a tubular sleeve (5) into which said rod (2) is inserted coaxially; at least a first pair of expansion means (12) located in the distal part (4) of said rod (2), said expansion means (12) being made of a shape-memory material in order to assume a first configuration of rest in which they are disposed inside recesses in the lateral wall of the nail (1), and a second configuration of use in which said means (12) are located projecting from the lateral wall of the nail (1); slots (55) are present on the tubular sleeve (5) in correspondence with the shape-memory means (12) to allow for the fastening onto the bone when the means assume said second configuration of use; where said rod (2) comprises in correspondence with the proximal end (3) a transversal channel (6) for the passage of a stop screw (S), said tubular sleeve (5

Abstract: An intramedullary nail for a fractured elongated bone, comprising a cannulated rod having proximal and distal ends; an outside tubular sleeve for coaxially hosting and guiding the rod; and shape memory elements hosted in corresponding seats of the rod. Each shape memory element can be retractably housed in its respective seat in a first configuration, allowing insertion of the nail into the bone, and can project from a sleeve opening in another configuration. Proximal and distal pairs of the elements are provided at the proximal and distal rod ends. The proximal element pair lie on a same plane and are kept in their seats by a proximal cover. The distal element pair lie on an offset plane to the plane of the proximal element pair and are kept in their seats by a distal cover. This removes the need for bone screws to stabilize the nail inside the medullary canal.

Abstract: An intramedullary nail for a fractured elongated bone, comprising a cannulated rod having proximal and distal ends; an outside tubular sleeve for coaxially hosting and guiding the rod; and at least a pair of shape memory elements hosted in corresponding seats at the distal end of the rod. Each shape memory element can be retractably housed in its seat in a first configuration, allowing insertion of the nail into the bone, and can project from a sleeve opening in another configuration. Pairs of transversal holes are provided in proximal portions of the rod and the sleeve. The distal pair of shape memory elements lie on an offset plane to the plane of the proximal holes and are kept in their corresponding seats by a distal cover fixed to the rod. This improves the stability of the nail in the medullary canal.

Abstract: An intramedullary nail (10, 110, 210, 310, 410, 510, 610) suitable for insertion in a fractured elongate bone (12), of the type comprising a stem (14, 114, 214, 314, 414, 514, 614) extended between a proximal end (16, 116, 216, 416, 516, 616) and a distal end (18, 118, 218, 418, 518, 618). The nail comprises a plurality of elements (20, 120, 220, 320, 420, 520, 620) realized with at least one shape-memory material, a plurality of seats (19, 119, 219, 319, 419, 519, 619) formed in the stem (14, 114, 214, 314, 414, 514, 614) for housing the elements (20, 120, 220, 320, 420, 520, 620). The elements (20, 120, 220, 320, 420, 520, 620) are suitable to take a first shape wherein they are retractably housed in the respective seats (19, 119, 219, 319, 419, 519, 619) and a second shape wherein they project from the respective seats (19, 119, 219, 319, 419, 519, 619).

Abstract: The invention concerns an intramedullary nail to be inserted into a fractured long bone, for example a femur, comprising: a rod (2) extending between a proximal part (3) and a distal part (4); a tubular sleeve (5) into which said rod (2) is inserted coaxially; at least a first pair of expansion means (12) located in the distal part (4) of said rod (2), said expansion means (12) being made of a shape-memory material in order to assume a first configuration of rest in which they are disposed inside recesses in the lateral wall of the nail (1), and a second configuration of use in which said means (12) are located projecting from the lateral wall of the nail (1); slots (55) are present on the tubular sleeve (5) in correspondence with the shape-memory means (12) to allow for the fastening onto the bone when the means assume said second configuration of use; where said rod (2) comprises in correspondence with the proximal end (3) a transversal channel (6) for the passage of a stop screw (S), said tubular sleeve (5

Abstract: An intramedullary nail (10, 110, 210, 310, 410, 510, 610) suitable for insertion in a fractured elongate bone (12), of the type comprising a stem (14, 114, 214, 314, 414, 514, 614) extended between a proximal end (16, 116, 216, 416, 516, 616) and a distal end (18, 118, 218, 418, 518, 618). The nail comprises a plurality of elements (20, 120, 220, 320, 420, 520, 620) realised with at least one shape-memory material, a plurality of seats (19, 119, 219, 319, 419, 519, 619) formed in the stem (14, 114, 214, 314, 414, 514, 614) for housing the elements (20, 120, 220, 320, 420, 520, 620). The elements (20, 120, 220, 320, 420, 520, 620) are suitable to take a first shape wherein they are retractably housed in the respective seats (19, 119, 219, 319, 419, 519, 619) and a second shape wherein they project from the respective seats (19, 119, 219, 319, 419, 519, 619).

Abstract: An external fixator apparatus (1) of the ring type for stabilizing bone fractures, including at least one pair of rings (6, 7), of which one (6) is proximal and the other (7) is distal, and at least one tie rod (8, 9, 10) interconnecting the rings (6, 7) to each other. The rod (8, 9, 10) is split into two rod sections (11, 12) connected together by a joint (21) and the joint (21) includes a pivot mount (22) having a predetermined axis (x—x) for the angular displacement of the rod sections (11, 12), and a sliding mount (23) according to a pre-determined sliding direction (y—y) for offsetting the rod sections (11, 12).

Abstract: The invention relates to an external fixator apparatus (1) of the ring type for stabilizing bone fractures, comprising at least one pair of rings (6, 7), of which one (6) is proximal and the other (7) is distal, and at least one tie rod (8, 9, 10) interconnecting the rings (6, 7) to each other, wherein the rod (8, 9, 10) is split into two rod sections (11, 12) connected together by a joint (21) and the joint (21) comprises a pivot mount (22) having a predetermined axis (x-x) for the angular displacement of the rod sections (11, 12), and comprises a sliding mount (23) according to a predetermined sliding direction (y-y) for offsetting the rod sections (11, 12).

Abstract: The present invention includes a fixation device for treatment of orthopedic indications. The device preferably includes a first portion and a second portion which may be incrementally and independently articulated relative to each other to promote healing of an orthopedic indication. One or more worm gear assemblies may be used to incrementally adjust articulation of the first portion and the second portion relative to each other.

Abstract: The invention relates to a clamp element for external fixator apparatuses of the rod and ring type used for stabilizing bone fractures in orthopedic surgery; a clamp connector secures at least one of the bone fragment stretching wires and the bone screws to the rings. The invention comprises a swivel joint comprising a first part and a second part associated with each other around a common pivot axis, each part being formed with at least one hole of a predetermined diameter for clamping the stretching wire or the bone screw therein. Also provided on each of the parts are clamping mechanisms for attaching to a rod or to a ring of the fixator device. The clamping mechanisms are used for clamping the stretching wire or the bone screw in the part of the swivel joint which is not connected to the rod or to the ring.

Abstract: The invention relates to a clamp element for external fixator apparatuses (2) of the rod (8,9,10) and ring (6,7) type used for stabilizing bone fractures in orthopedic surgery; such clamp connector secures at least one of the bone fragment (3) stretching wires (4) and the bone screws (11) to one of the rings. Advantageously, the element of this invention comprises a swivel joint (12) consisting of a first part (13) and a second part (14) associated with each other around a common pivot axis (x-x), each part (13,14) being formed with at least one hole (16) of a predetermined diameter for clamping the stretching wire (4) or the bone screw (11) therein. Also provided on each of the parts (13,14) are the means (18) of clamping to a rod (8,9,10) or to a ring (6,7) of the fixator device, and these clamping means are used for clamping the stretching wire (4) or the bone screw (11) in the part (13,14) of the swivel joint (12) which is not connected to the rod or to the ring.