Proximal femoral anti-spinning intramedullary nail system
A technology of proximal femur and intramedullary nailing, which is applied in the field of medical devices, can solve the problems of poor resistance to lateral and inferior oblique shear force, stress concentration, neglect of the importance of stable support structures, etc., and achieve the effect of avoiding violent implantation
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Embodiment 1
[0119] An anti-rotation intramedullary nail system for the proximal femur, comprising a main nail 1, a pressure nail 2, and a tension nail, the main nail 1, the pressure nail 2 and the tension nail form a triangular support structure 4, the pressure nail 2 and the tension nail 3 through connections.
[0120] The front end of the pressure nail 2 is provided with a helical blade 26 .
[0121] The diameter of the pressure nail 2 is greater than that of the tension nail 3. The diameter of the pressure nail 2 is 13mm, and the diameter of the tension nail is 8mm.
[0122] A pressure gap 6 is set on the tension nail, and the pressure gap 6 is set between the pressure nail 2 and the tension nail cross insertion point and the thread structure, or the pressure gap 6 is arranged between the pressure nail 2 and the tension nail. Put between the point and the helical blade 26.
[0123] The main nail 1 includes a proximal section 7 and a distal section 8, one end of the proximal section 7 i...
Embodiment 2
[0140] A proximal femoral anti-rotation intramedullary nail system, comprising a main nail 1, a pressure nail 2, and a tension nail, the main nail 1, the pressure nail 2 and the tension nail form a triangular support structure 4, the pressure nail 2 and the tension nail 3 through connection.
[0141] The front end of the pressure nail 2 is provided with a threaded structure 25 . The diameter of the pressure nail 2 is greater than the diameter of the tension nail. The diameter of the pressure nail 2 is 13mm, and the diameter of the tension nail is 8mm.
[0142] A pressure gap 6 is set on the tension nail, and the pressure gap 6 is set between the pressure nail 2 and the tension nail cross insertion point and the thread structure, or the pressure gap 6 is arranged between the pressure nail 2 and the tension nail. Put between the point and the helical blade 26.
[0143] The main nail 1 includes a proximal section 7 and a distal section 8, one end of the proximal section 7 is pr...
Embodiment 3
[0157] It also includes an anti-back locking nail 20, which is vertically arranged with the pressure nail 2, the anti-back locking nail 20 runs through the main nail 1 and the pressure nail 2, and a cross positioning structure 21 is provided at the tail end of the tension nail 3. Others are the same as embodiment 2.
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