A femur fixation device includes an intramedullary nail having along its longitudinal axis a proximal portion, a distal portion and a lateral through hole extending through the proximal portion; and a hip screw capable of passing through the lateral through hole. An axis of the lateral through hole intersects the longitudinal axis at a first inclination angle. The proximal portion includes a first through hole. The first through hole is provided with a detachable positioning bracket therein. A positioning protrusion is defined at a lower end of one side of the positioning bracket. A line connecting the positioning protrusion and corresponding end points on a sidewall of the positioning bracket intersects the longitudinal axis at a second inclination angle. An outer surface of the hip screw is provided with a positioning groove. A tail nail is disposed in the first through hole.

Systems for treating and/or preventing fractures include at least one needle sized and configured to be placed into target bone and at least one implantable pin configured to be releasably held in a first needle of the at least one needle. The systems also include at least one delivery device of injectable material configured to couple to the first needle while the first implantable pin is held in the first needle whereby the at least one delivery device and a respective needle cooperate to serially provide an external column of the injectable material about the at least one implantable pin.

A method for fixating an artificial convex caput femur surface to the pelvic bone of a patient, the method comprising the steps of: exposing the acetabulum surface, creating a hole or recess in the pelvic bone from the acetabulum side of the pelvic bone, providing the artificial convex caput femur, comprising an elongated member to the hip joint, inserting said elongated member in said hole, and performing an action on the acetabulum side of the pelvic bone such that the elongated member is structurally changed on the abdominal side of the pelvic bone or inside the pelvic bone.

The current invention features a rod screw for medical application that can be configured and used to fixate fracture of bones varying in shape and dimension, and treating maladies such as scoliosis, and securing an implanted device, to tissue such as bone. This is achieved by designing a flexible rod screw with a mechanism to lock the configuration in a rigid state. In an embodiment, a bone-fracture fixation device, such as a rod screw, includes a flexible body, a plurality of flexible members, and first and second interfaces. The flexible members are disposed longitudinally within the flexible body, such that the flexible body is rigid when the flexible members are fixed into position. And the first and second interfaces are respectively coupled to the flexible body, each of at least one of the first and second interfaces including a respective at least one hole each configured to receive a respective attachment member configured to engage a bone.

The present invention relates to orthopaedic implants having a fenestrated hollow shell and a biologic core. These design features provide an improved interface between the implant and the surrounding tissue, aiding fixation, and provide a vehicle for applying new bone healing and enhancing modalities, such as gene therapy, tissue engineering, and growth factors.

An implant device (A1) for engagement with a bone of a patient, the implant device (A1) comprising a distal end (B1), a proximal end (C1), a central shaft (D1) extending therebetween and a longitudinal central axis (E1); the implant device (A1) further including a helical thread portion (F1) extending circumferentially about the central shaft (D1) and extending from the distal end (B1) towards the proximal end (C1) thereof, and a root (G1) at the base of the helical thread portion (F1) adjacent the central shaft (D1), the helical thread portion (F1) including a leading edge (H1) and a trailing edge (I1) both extending at least radially outwardly from the central shaft (D1) and defining the thread portion (F1) therebetween, with the root (G1) of the thread portion (F1) defined therebetween in a direction of the longitudinal central axis (E1) of the implant device (A1); wherein the leading edge (H1) faces in a direction of at least towards the distal end (B1) of the implant device (A1), and the trailing edge (I1) faces at least in a direction of towards the proximal end (C1) of the implant device (A1); and wherein a portion of the trailing edge (I1) extends in a direction towards the proximal end (C1) of the implant (A1) further than the most proximal portion of the root (G1) of the thread portion (F1) such that the portion of the trailing edge (I1) forms a recess (J1) between the central shaft (D1) and the trailing edge (I1).

A femur fixation device includes an intramedullary nail having along its longitudinal axis a proximal portion, a distal portion and a lateral through hole extending through the proximal portion; and a hip screw capable of passing through the lateral through hole. An axis of the lateral through hole intersects the longitudinal axis at a first inclination angle. The proximal portion includes a first through hole. The first through hole is provided with a detachable positioning bracket therein. A positioning protrusion is defined at a lower end of one side of the positioning bracket. A line connecting the positioning protrusion and corresponding end points on a sidewall of the positioning bracket intersects the longitudinal axis at a second inclination angle. An outer surface of the hip screw is provided with a positioning groove. A tail nail is disposed in the first through hole.

A method comprising cutting a channel through a femoral neck and into a femoral head of a femur, and inserting a femoral implant within the channel such that a porous portion of the femoral implant is positioned within the femoral head and a resorbable portion of the femoral implant is positioned within the femoral neck, the porous portion being coupled to the resorbable portion and extending therefrom along a longitudinal axis of the femoral implant, the resorbable portion having a cross-sectional area defined in a plane extending transverse to a longitudinal axis of the femoral implant, the cross-sectional area of the resorbable portion consisting essentially of a resorbable material.

Apparatus and methods for treatment of a bone. The apparatus may include an implant. The implant may include an implant tail and an implant head configured to expand, inside the bone, from a collapsed state to an expanded state. The apparatus may include an intramedullary rod defining a central longitudinal rod axis. The intramedullary rod may include a guide segment configured to guide the implant head into the bone and support the implant tail. The intramedullary rod may include an elongated extension member spaced radially apart from the central longitudinal axis. The extension member may be configured to provide clearance for the implant head as the implant head is advanced, in the collapsed state, into the bone. The extension member may be configured to provide clearance for the implant head in the expanded state.

A system and method for forming a hip implant offering minimal invasiveness is described. The system comprises means for positioning the implant under optical and X-ray control, an implant and an applicator for screwing and expanding the implant. The implant includes an insert body and an expansion tube with cut-outs and slits defining legs. The legs expand radially through windows in the insert body when the expansion tube is pushed against the sloped distal portion of the insert body. The expansion process may be ensured by using an anti-rotation device to prevent the insertion tube from rotating within the insert body. Applicator and implant are provided with means preventing cold welding during the implantation process.