Trace slide type unstressed shielding steel plate

Abstract

The invention relates to a trace slide type unstressed shielding steel plate, in particular to a fixing steel plate for fracture treatment, which is characterized in that a plate body is orderly provided with a near end tack hole, a plurality of intermediate tack holes and a far end tack hole, wherein the through holes of the intermediate tack hole and the far end tack hole are used for placing bolts; a removable slide lock is arranged in the near end tack hole; and the through holes on the slide lock are used for placing the bolts. In the invention, the bolts of the intermediate tack hole are arranged in a removable mode; the near end tack hole is provided with a slide block; the far end tack hole is provided with an inclined slop; and the slide block and the inclined slop can pressurize the fracture end. The trace slide type unstressed shielding steel plate has the following beneficial effects: (1) having no stress shielding problem, healing under stress, and reducing secondary fracture after being taken; (2) eliminating residual gap of the fracture end after absorbing; (3) ensuring that the fracture end is only pressurized without separation; (4) enabling the fracture end to fret so as to prompt the fracture to heal; (5) ensuring the axial stress stimulation on the fracture end so as to promote fracture healing; and (6) adopting inner surface point type contact which is beneficial to blood supply protection so as to promote the fracture healing.

Description

technical field [0001] The invention relates to the technical field of medical devices, and further relates to a fixed steel plate for bone injury treatment, in particular to a micro-sliding stress-free shielding steel plate. Background technique [0002] Plate fixation is a common method for the treatment of leg fractures of the lower extremities, but the common fixation plates commonly used have the following disadvantages: ① there is stress shielding, bone absorption, and secondary fractures; ② cannot slide, and the fracture end cannot slide after absorption in the later stage Pressurized, it is easy to form a gap, it is difficult to heal and the fixation fails; ③The fretting stimulation and application conduction of the fracture end is poor; it is not conducive to fracture healing; ④The force direction of the screw on the bone tissue is inconsistent (there is separation and extrusion of the bone tissue); ⑤The screw is damaged Uneven force, easy to fatigue and fracture; ⑥...

AI Technical Summary

Problems solved by technology

[0002] Plate fixation is a common method for the treatment of leg fractures of the lower extremities, but the common fixation plates commonly used have the following disadvantages: ① there is stress shielding, bone absorption, and secondary fractures; ② cannot slide, and the fracture end cannot slide after absorption in the later stage Pressurized, it is easy to form a gap, it is difficult to heal and the fixation fails; ③The fretting stimulation and application conduction of the fracture end is poor; it is not conducive to fracture healing; ④The force direction of the screw on the bone tissue is inconsistent (there is separation and extrusion of the bone tissue); ⑤The screw is damaged Uneven force, prone to fatigue and fracture; ⑥Fixation failure or non-union requires secondary surgical fixation

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