Preparation method of a titanium alloy artificial bone/intramedullary nail compression fixation system

Abstract

The invention discloses a titanium alloy artificial bone / intramedullary nail compression fixation system and a preparation method thereof. The system consists of a titanium alloy artificial bone segment, an intramedullary nail, a compression nut and lock pins, wherein the titanium alloy artificial bone segment is a cylinder with a cavity; the intramedullary nail interpenetrates the cavity of the titanium alloy artificial bone segment; one end of the intramedullary nail is provided with radial lock pin holes; the other end of the intramedullary nail is provided with a compression thread; the compression nut and the compression thread are arranged in the manner of matching; and the lock pins and the lock pin holes are arranged in the manner of matching. The titanium alloy artificial bone / intramedullary nail compression fixation system can be used for repairing bone defects, so that injured limbs of a patient can be recovered in load bearing function and fine movement function as fast as possible, and the defects, such as ankylosis and infection, in the prior art are prevented.

Description

technical field [0001] The invention belongs to the field of medical devices, and relates to a titanium alloy artificial bone, in particular to a preparation method of a titanium alloy artificial bone / intramedullary nail pressure fixation system. Background technique [0002] With the rapid development of modern science and technology, serious high-speed traffic accidents, poor labor protection and the use of modern weapons, the incidence of severe bone trauma in limbs is increasing. The treatment of bone defects, especially large bone defects, has become a trauma orthopedic treatment field problems. For large bone defects with a length of less than 6 cm, the length and function of the affected limb can be basically restored by traditional autologous cortical cancellous bone or artificial bone grafting, while the repair of large long bone defects with a length of more than 6 cm is more complicated. There are many techniques including autologous bone grafting, distraction os...

AI Technical Summary

Problems solved by technology

[0011] The purpose of the present invention is to overcome the above-mentioned shortcoming of prior art, provide a kind of preparation method of titanium alloy artificial bone / intramedullary nail pressure fixation system, its selection has good biocompatibility, fatigue resistance and good bioelastic modulus Titanium alloy biomaterials, using CAD / CAM technology, based on the information of the normal bone of the opposite side of the long bone defect, to obtain the data of the important long bone defect, and before the operation, the computerized numerical control machine tool is used to produce individualized titanium alloys. Alloy large segmental bone defect implants, supplemented with titanium alloy artificial bone matching intramedullary nails at both ends of the pressurized fixation device implanted in large segmental bone defects, so as to achieve the repair of bone defects, so that the patient's injured limbs can restore the load as soon as possible Weight-bearing function and fine motor function, prevent joint stiffness, infection and other defects existing in the existing technology

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