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Tibial plateau fracture pressurizing and fixing device

A fixation device, tibial platform technology, applied in the direction of fixator, internal fixator, internal bone synthesis, etc., can solve the problems of enlarged surgical trauma, high risk of displacement, damage of cortical bone on the nut side, etc., to reduce the accuracy requirements, The effect of reducing the surgical opening and improving the surgical effect

Inactive Publication Date: 2015-11-04
张英泽
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For most types of plateau fractures, compression bolts and plates can be used for fixation. However, due to the small contact area between the nut side of the compression bolt and the tibial plateau and the stress concentration, the cortical bone on the nut side is likely to be damaged during the bolt compression process, and the nut sinks into the bone. Moderate, the compression effect on the fracture fragment is weakened, and the risk of redisplacement after operation is high
Lag screws are used in conjunction with the use of plates. For patients with bilateral plateau fractures with displacement, bilateral plate fixation is often required, which enlarges the surgical trauma and increases the risk of complications such as postoperative infection.
However, the use of locking screws and plates to fix the contralateral fracture fragment does not achieve a good compression fixation effect.
[0003] To sum up, several methods currently used to fix tibial plateau fractures have their shortcomings. Although they have been continuously improved by medical staff and technicians, they still cannot achieve satisfactory results during the operation. It is very necessary to develop a new tibial plateau fracture fixation method. Internal fixation device for plateau fractures to improve surgical results and reduce postoperative problems

Method used

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  • Tibial plateau fracture pressurizing and fixing device
  • Tibial plateau fracture pressurizing and fixing device
  • Tibial plateau fracture pressurizing and fixing device

Examples

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Embodiment Construction

[0018] The present invention includes a fixed steel plate 1, a pressure screw 2, a nut 3, a pressure steel plate 4, and an adjustment piece 8.

[0019] figure 1 It shows that the fixed steel plate 1 is in an "L" shape as a whole, there are 2-3 pressure holes on the upper part of the fixed steel plate 1, the diameter of the pressure holes matches the diameter of the pressure screw 2, and more than 3 The fixing holes are arranged along the length direction of the fixing steel plate 1 . The fixed steel plate 1 is not significantly different from the fixed steel plate used in the prior art.

[0020] figure 1 , 2 It shows that the pressurized steel plate 4 is a rectangular or elliptical thick steel plate, on the pressurized steel plate 4 there are two circular grooves 5 arranged in parallel along the length direction of the plate surface, and the center of the circular groove 5 has a penetrating pressurized The through hole 6 on the plate surface of the steel plate 4. The diam...

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Abstract

The invention discloses a tibial plateau fracture pressurizing and fixing device, and belongs to the technical field of medical apparatuses and instruments in the orthopedic department. The tibial plateau fracture pressurizing and fixing device is used for pressurizing and fixing a tibial plateau fracture accompanied by fracture piece separation. According to the technical scheme, a fixing steel plate and a pressurizing steel plate are located on the two sides of a tibial plateau respectively, and a pressurizing screw penetrates through the fixing steel plate, the tibial plateau and the pressurizing steel plate to be pressurized and fixed through a nut so that the tibial plateau can be fixedly connected with a fracture piece. Two circular grooves are formed in the pressurizing steel plate, a through hole is formed in the center of each circular groove, an adjusting piece is embedded in each circular groove, and a long groove is formed in each adjusting piece. The area of the pressurizing steel plate is far larger than that of an ordinary nut, and the damage caused by stress concentration to bone cortex is avoided; the long grooves of the adjusting pieces are quite conveniently aligned with the pressurizing screw, the requirement for built-in precision of the pressurizing screw is lowered a surgery incision can be quite easily reduced, and the operation process is accelerated. The defects of various existing conventional methods are overcome, the surgery effect is greatly improved, and the tibial plateau fracture pressurizing and fixing device is suitable for being applied to minimally invasive surgery.

Description

technical field [0001] The invention relates to a tibial plateau fracture pressure fixation device accompanied by separation of fracture fragments, and belongs to the technical field of orthopedic medical devices. Background technique [0002] Tibial plateau fractures with separation and displacement of fracture fragments are often encountered in clinical work (Schatzker types I, II, IV, V, and VI may all occur), and the purpose of surgical treatment is to fully reduce the fracture fragments and restore the knee joint. Axial alignment and articular surface smoothing, reconstruction of knee joint function. At present, there are several internal fixation methods for tibial plateau fractures: compression bolt fixation, lag screw fixation, compression bolt combined with plate fixation, lag screw combined with plate fixation, locking screw combined with plate fixation, etc. For most types of plateau fractures, compression bolts and plates can be used for fixation. However, d...

Claims

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Application Information

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IPC IPC(8): A61B17/68A61B17/86
CPCA61B17/68A61B17/8004A61B17/86
Inventor 张英泽郑占乐于贤常恒瑞陈伟
Owner 张英泽
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