Proximal tibia outer side locking plate

A technology of locking plate and tibia, applied in the direction of outer plate, fixer, internal bone synthesis, etc., can solve the problems of no effective fixation of meniscus injury and weak fixation of posterior side column, so as to increase the scope of indications and reduce the number of surgical supporting tools , fixed effect

Pending Publication Date: 2018-04-20
SHANGHAI KINETIC MEDICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Proximal tibial plateau fractures are accompanied by comminuted fractures of the proximal tibial articular surface, detachment of the meniscus, collapse of the tibial plateau, and longitudinal splitting of the cylinder. According to fracture classification, lag screws, T-shaped plates, L-shaped plates, golf plates, etc. are used for fixation. However, in plate fixation, the lateral column of the tibial plateau is generally fixed, and the fixation of the posterior column is relatively weak. no effective fixation

Method used

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  • Proximal tibia outer side locking plate
  • Proximal tibia outer side locking plate
  • Proximal tibia outer side locking plate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0068] refer to Figure 2-13 The lateral locking plate of the proximal end of the tibia includes a main body part and a tab part 4 , the main part includes a head 1 and a rod part 2 , and the tab part 3 is connected to one side of the head 1 .

[0069] In this example, refer to Figure 12-13 , the head 1 is spherically curved to fit the outer surface of the lateral column of the proximal tibial platform, so that the head 1 wraps around the outer surface of the proximal tibial platform and is fixed thereto. And after being fixed, the surface curvature of the medial surface of the head 1 and the tibia is consistent with the curvature of the surface of the lateral column of the proximal tibial platform, so that the head 1 can better fit with the surface of the lateral column of the proximal tibial platform, enhancing fixed effect.

[0070] combine figure 2 , 4 , 7, 8, a plurality of first locking holes 11 are provided on the head 1, and the equipped locking members (such as ...

Embodiment 2

[0093] refer to Figure 14-22, this embodiment is an adjustment made on the basis of embodiment 1.

[0094] Specifically, in this embodiment, the thickness of the head connecting portion 17 is smaller than that of the head main body, and the head connecting portion 17 and the head main body are transitionally connected by rounded corners 16 . The connecting part 46 of the tab and the connecting part 17 of the head are matched and overlapped together through a positioning pin 42 and a positioning hole 15. Since the connecting part 17 of the head is thinned, the head, the fitting and the main body of the tab of the same thickness.

[0095] Since the positioning between the head 1 and the tab part 4 is only realized by positioning pins and positioning holes, they cannot be fixed to each other; 45 is stuck on the upper and lower side edges 18 of the head connection part 17, so that the head 1 and the tab part 4 are directly fixed together, thereby preventing the occurrence of a ...

Embodiment 3

[0098] refer to Figure 23-26 , this embodiment is an adjustment made on the basis of embodiment 1.

[0099] In this embodiment, the head 1 and the tab part 4 are made integrally.

[0100] In this embodiment, other structural forms of the locking plate on the outer side of the proximal end of the tibia can refer to the description in Embodiment 1, and will not be repeated here.

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Abstract

The invention provides a proximal tibia outer side locking plate. The proximal tibia outer side locking plate comprises a main body component and a connecting plate component, wherein the main body component is used for fixing a proximal tibia outer side; the main body component comprises a head part, a rod part and a connecting part for connecting the head part with the rod part; the head part wraps and fixes an outer side column of a proximal tibia platform; the rod part is attached to the outer side surface of a tibial shaft and is fixed; the connecting part is adhered to a tibia surface and is bent; the connecting plate component is connected with the head part and is used for fixing a connecting plate component of a rear side column of the proximal tibia platform. By the main body component, the outer side of a tibia is fixed; by the design of the connecting plate component, fixation to the rear side column of the proximal tibia platform is enhanced, so that the proximal tibia outer side locking plate can be used in surgeries such as proximal tibia fracture, metaphysis fracture, intra-articular fracture and periprosthetic fracture. In addition, the head part of the main body component warps the outer side column of the proximal tibia platform. Compared with an existing curved-surface bone fracture plate, the proximal tibia outer side locking plate is fixed firmly and reliably.

Description

technical field [0001] The invention relates to the technical field of medical device design, in particular to a locking plate on the outer side of the proximal end of the tibia. Background technique [0002] Tibial plateau is an important load-bearing structure of the knee, and fracture of tibial plateau is one of the most common fractures in knee joint trauma. Tibial plateau fractures can be caused by indirect or direct violence. When falling from a height, the foot touches the ground first, and then falls to the side. The force is transmitted upwards from the foot along the tibia. Torsional force, resulting in a collapsed fracture of the medial or lateral tibial plateau. When the violence directly hits the inner or outer side of the knee, it will cause the knee joint to valgus or varus, resulting in lateral or medial plateau fractures or ligament damage. Since the tibial plateau fracture is a typical intra-articular fracture, its treatment and prognosis will have a gre...

Claims

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Application Information

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IPC IPC(8): A61B17/80
CPCA61B17/8061A61B2017/564
Inventor 潘志军佘君毅崔亚飞张阿龙彭豪余俊瑶
Owner SHANGHAI KINETIC MEDICAL
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