Femoral LISS steel plate aiming device

Abstract

The invention relates to a femoral LISS steel plate aiming device, and belongs to the technical field of orthopedic medical instruments and is used for aiming and fixing distal femoral fracture. The technical scheme is that the plate surface of the aiming steel plate is provided with a plurality of aiming screw holes; the positions of the aiming screw holes correspond to the positions of locking screw holes on the plate surface of the LISS steel plate; the number of the fixing screw rods is two, and the two fixing screw rods are respectively in a two-body structure; the lower end of the lowerpart of the fixing screw rods is matched with the fixing screw holes at the two ends of the LISS steel plate, and the upper end of the lower part of the fixing screw rods is welded with a threaded sleeve; the upper rod body of the fixing screw rods is provided with threads which are matched with the threaded sleeve at the upper end of the lower part of the fixing screw rods, the upper rod body ofthe fixing screw rods is screwed with two locking nuts, and two ends of the aiming steel plate are clamped between the two locking nuts respectively. According to the femoral LISS steel plate aiming device, locking screws can be accurately connected with the locking screw holes of the LISS steel plate through the aiming screw holes of the aiming steel plate, so that the locking screws can be quickly and accurately fixed, thereby reducing the operation time, and improving the operation effect.

Description

technical field [0001] The invention relates to a LISS steel plate aimer for treating distal femur fractures, belonging to the technical field of orthopedic medical devices. Background technique [0002] Fractures of the distal femur account for 0.4% of all fractures in the body. They mostly occur in the elderly or patients with multiple injuries. Most of them are caused by high-energy trauma. They are often severe comminuted fractures and unstable fractures, accompanied by severe damage to surrounding soft tissues. , is a major difficulty in trauma orthopedics. Distal femoral fractures require surgical treatment, but the curative effect of traditional plate, external fixator, and intramedullary nail fixation is not satisfactory, and complications such as fracture malunion, bone nonunion, joint stiffness, and infection often occur. bone. [0003] The traditional plate open reduction and internal fixation has a large incision, a large trauma to the surrounding soft tissue, ...

AI Technical Summary

Problems solved by technology

However, since the LISS steel plate and the sight are only connected at one end, it often happens that after the LISS steel plate is connected to the sight, the aiming screw hole of the sight is not aligned with the screw hole on the LISS steel plate, which affects the fixing process of the LISS steel plate , increases the operation time, and may affect the stability of the fixation

[0008] At present, during the treatment of distal femoral fractures with LISS plates, due to the minimally invasive incision, the problem that the aiming screw hole at the distal end of the aimer and the locking screw hole at the distal end of the LISS plate cannot be precisely aligned has not been completely resolved, which directly affects the The effect of LISS plate surgery increases the operation time, which needs to be solved urgently

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