Femoral intramedullary nail

proximal fixation

Proximal femoral bionic nail was jointly developed on the basis of the original patent of “triangle stable structure” by Academician Zhang Yingze and the theory of “leverage-fulcrum reconstruction” proposed by Professor Zhang Dianying. It is indicated for low and extended subtrochanteric fractures, ipsilateral trochanteric fractures, proximal femoral multilateral fractures, and pathological fractures."Leverage-fulcrum reconstruction" theoryThe anatomy of the normal human hip joint is similar to a lever system. The fulcrum is located near the center of the femoral head, the lever arm of the medial compressive group is shorter, and the lever arm of the lateral tensile group is longer. Therefore, the hip joint can bear a greater weight and perform various actions.The purpose of the operation is to establish a new lever system through the internal fixation system to replace the original lever system until the fracture is healed.The postoperative stability of fracture depends on the type of fixation, and has no relationship with the types of the fracture.The fulcrum reconstruction position of new internal fixation system is closer to the anatomical and physiological fulcrum, the more stable the postoperative fracture will be.Nails:130° CCD angle provides more options for different anatomyMedial-lateral angle of 5° allows insertion at the tip of the greater trochanterLateral flat cut design for easier insertion and lower pressure on the lateral wallSmaller proximal diameter for protection of soft tissueDistal long groove cutting disperses stress to prevent fractures around the nailAnterior arch fits to the femoral anatomyLarge Compression Screw & Compression ScrewUnique combined compression locking screw: continuous pressurization to eliminate the "Z" effectThe end of compression screw: fixes the nail in the medial side of the medullary cavity to reduce the pressure of lateral wallGear structure: controllable rotation during reduction provides linear pressurizationTension Screw:Self-tapping design facilitates intraoperative insertionTorxdrive screwdriver, lowers the risk of screw looseningLocking Screw:Self-tapping design facilitates intraoperative insertionLocking screw design with double lead thread for easier insertionTorxdrive screwdriver, lowers the risk of screw looseningEnd Cap:Increases instant stable fixation for unstable fractureTorxdrive screwdriver, lowers the risk of end cap looseningAiming Shaft:Made of carbon fiber material, lightweight and radiolucentOne jig for insertion of spiral blade and locking screw, no need to change instruments during operationA guide wire can be inserted through the hole in aiming shaft to detect femoral anteversion angle and the depth of the nail into the medullary cavityFor unstable fracture, provides two K-wire holes for temporary anti-rotation fixationIndication:Low and extended subtrochanteric fracturesIpsilateral trochanteric fracturesMultilateral fractures (proximal femur)Pathological fracturesContraindications:Femoral shaft fracturesIsolated or combined middle femoral neck fracturesCaractéristiques / Spécifications techniques :130° CCD angle5° medial-lateral angleLateral flat cut designSmaller proximal diameterDistal long groove cuttingAnterior arch anatomical fitCombined compression locking screwSelf-tapping tension and locking screwsTorxdrive screwdriver compatibilityCarbon fiber aiming shaftIndications: low/extended subtrochanteric, ipsilateral trochanteric, multilateral proximal femur, pathological fracturesContraindications: femoral shaft, middle femoral neck fractures