The present invention provides a fused femoral stem system, including a curved short handle, a fixing mechanism and a femoral head prosthesis, one end of the curved short handle is provided with a conical connector, the conical connector is cooperatively connected with a conical connecting hole of the femoral head prosthesis, the other end of the curved short handle is inserted from the osteotomy surface of the femoral neck and stretches to the position of a medullary cavity below a small trochanter, and the curved short handle is connected and fixed with a large trochanter through the fixing mechanism. The present invention has the beneficial effects that, after the growing-in osseointegration with the sclerotin surrounding the proximal bone bed of the host after the surgery of the whole system, the mechanical influence on the retained femoral neck and the sclerotin in the vicinity of the large and small trochanters is substantially similar to the biomechanical state prior to the surgery.

The present invention relates to a method of treating a hip joint of a human patient, the hip joint comprising an acetabulum, the acetabulum being a part of the pelvic bone, and a caput femur, the caput femur being the proximal part of the femoral bone, said method comprising the steps of: cutting the skin of the human patient, dissecting an area of the pelvic bone on the opposite side from the acetabulum, creating a hole in said dissected area, said hole passing through the pelvic bone and into the hip joint of the human patient, and performing an action in the hip joint, through said hole in the pelvic bone.

An implantable medical device for implantation in a hip joint is provided. The medical device comprises: at least one artificial hip joint surface adapted to replace at least the surface of at least one of the caput femur and acetabulum. At least one artificial hip joint surface comprises: a positioning hole with at least one opening in said at least one artificial hip joint surface. The hole is adapted to be placed and dimensioned such that the medical device is adapted to be fitted using a positioning shaft and at least partly surround the shaft, for positioning the at least one artificial hip joint surface in a desired position in the hip joint. The hole is adapted to be fitted using the positioning shaft, when the shaft is stabilized and placed in at least one of the femoral bone and the pelvic bone for positioning said medical device inside the hip joint.

A device implantable in a human body comprising a first component, or main support component, delimiting a plurality of openings, and a second component disposed on a surface of the main support component.

A trial system for determining a suitable proximal body implant for hip replacement surgery comprises a separator instrument, a trial body attachable to a distal stem, and an insert. The insert is positioned within the trial body to receive the separator instrument. As the separator instrument is rotated about its axis, a ramp element of the insert guides a pin of the separator instrument, so as to separate the trial body from the distal stem. Additional apparatus, methods, and systems are disclosed.

A method of treating a hip joint of a human patient using a pelvic drill comprising a driving member, a bone contacting and an operating device for operating said driving member. The method comprise the steps of cutting the skin of the human patient, dissecting an area of the pelvic bone on the opposite side from the acetabulum, creating a hole in said dissected area using said pelvic drill, said hole passing through the pelvic bone and into the hip joint of the human patient, and providing at least one hip joint surface to the hip joint, through said hole in the pelvic bone of the human patient. In one embodiment the method includes inserting a needle or tube like instrument into the patient's body for filling a part of the patient's body with gas and thereby expanding a cavity within the body.

A method of treating a hip joint of a human patient using a pelvic drill comprising a driving member, a bone contacting and an operating device for operating said driving member. The method comprise the steps of creating a hole passing through the pelvic bone and into the hip joint of the human patient, and providing at least one hip joint surface to the hip joint, through said hole in the pelvic bone of the human patient. In one embodiment the method includes inserting a needle or tube like instrument into the patient's body for filling a part of the patient's body with gas and thereby expanding a cavity within the body.

A surgical instrument for operating hip joint osteoarthritis in a human patient is provided. The hip joint comprises an acetabulum, being a part of the pelvic bone, and a caput femur, being the proximal part of the femoral bone. The surgical instrument is adapted to assist in the operating of the hip joint osteoarthritis from the abdominal side of the pelvic bone of said human patient.

A trial system for determining a suitable proximal body implant for hip replacement surgery comprises a separator instrument, a trial body attachable to a distal stem, and an insert. The insert is positioned within the trial body to receive the separator instrument. As the separator instrument is rotated about its axis, a ramp element of the insert guides a pin of the separator instrument, so as to separate the trial body from the distal stem. Additional apparatus, methods, and systems are disclosed.

The present invention provides a fused femoral stem system, including a curved short handle, a fixing mechanism and a femoral head prosthesis, one end of the curved short handle is provided with a conical connector, the conical connector is cooperatively connected with a conical connecting hole of the femoral head prosthesis, the other end of the curved short handle is inserted from the osteotomy surface of the femoral neck and stretches to the position of a medullary cavity below a small trochanter, and the curved short handle is connected and fixed with a large trochanter through the fixing mechanism. The present invention has the beneficial effects that, after the growing-in osseointegration with the sclerotin surrounding the proximal bone bed of the host after the surgery of the whole system, the mechanical influence on the retained femoral neck and the sclerotin in the vicinity of the large and small trochanters is substantially similar to the biomechanical state prior to the surgery.