Tibia proximal fixing device for knee replacement surgery

A knee joint replacement and fixation device technology, applied in the direction of fixator, internal bone synthesis, fastening device, etc., can solve the problems of secondary injury, tibial surface abrasion injury, tissue abrasion injury, etc., achieve reasonable structure setting, avoid secondary injury, etc. Secondary damage, powerful effect

Active Publication Date: 2020-06-09
云阳县江口镇中心卫生院(云阳县第二人民医院)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The ordinary screws traditionally used for the support plate are extruded to the bone surface to generate preload and friction, which is likely to cause certain wear and tear damage to the tibial surface and secondary damage; after the screw is fixed to the support plate, the head of the screw or It is protruding on the surface of the supp

Method used

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  • Tibia proximal fixing device for knee replacement surgery
  • Tibia proximal fixing device for knee replacement surgery
  • Tibia proximal fixing device for knee replacement surgery

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Embodiment Construction

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0027] see Figure 1 to Figure 7 , the present invention provides a technical solution: a proximal tibial end fixation device for knee joint replacement surgery, including a support plate and a screw 5, combined with figure 1 and figure 2 As shown, the supporting steel plate includes a bone end supporting steel body 1, a backbone supporting steel body 101 integrally formed at the lower part of the bone end supporting steel body 1, and an elongated steel body...

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Abstract

The invention relates to the technical field of tibia fixing devices, and in particular relates to a tibia proximal fixing device for knee replacement surgery. The device includes a supporting steel plate and screws, the supporting steel plate is composed of a bone end supporting steel body, a backbone supporting steel body and an extension part, the bone end supporting steel body is provided witha first positioning hole, the backbone supporting steel body is provided with a second positioning hole, the bone end supporting steel body and the backbone supporting steel body are provided with screw holes, the outer end openings of the first positioning hole and the second positioning hole are provided with a positioning hole cap respectively, and the outer end opening of each screw hole is provided with a bolt hole cap. The device has the following beneficial effects: when the screws are connected with the supporting steel plate, the head end part of each screw is in fit connection withthe inner wall of each screw hole through a bolt, the supporting steel plate is connected and supported by the head end of each screw to make the supporting steel plate and the bone surface have no pressure effect, so that the wear of the steel plate on the surfaces of a tibia and a backbone is effectively reduced; and the supporting steel body is provided with the positioning hole caps and bolt hole caps, so that the surface of the supporting steel plate is smooth, and secondary damage to tissue by the head end of the bolt is avoided.

Description

technical field [0001] The invention relates to the technical field of tibial fixation devices, in particular to a tibial proximal end fixation device for knee joint replacement surgery. Background technique [0002] Total knee arthroplasty has become a common operation to solve severe knee joint lesions clinically, and is mainly used for severe knee joint pain, instability, and deformity. At present, clinicians support the use of the posterolateral approach of the knee joint to reduce the posterolateral fracture of the tibial plateau under direct vision. The use of the posterolateral approach allows the supporting plate to be placed directly behind the bone fragment according to the direction of the fracture line, so that the screw can be perpendicular to the bone fragment. The fracture line is implanted from the back inside to the outside, which can make the fracture block get the best reduction and fixation, and obtain stable rear support. [0003] Ordinary screws tradit...

Claims

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Application Information

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IPC IPC(8): A61B17/80A61B17/86
CPCA61B17/8061A61B17/8057A61B17/8635A61B17/863
Inventor 吕家琦
Owner 云阳县江口镇中心卫生院(云阳县第二人民医院)
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