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Internal fixation steel plate of increasing fixation strength

A technology for fixing steel plates and fixing strength, which is applied in the direction of fixers, outer plates, and internal bone synthesis. It can solve problems such as the inability to effectively avoid bending of steel plates, unstable fracture ends, and easy fractures, so as to increase stability and The effect of fixing strength, reducing the risk of fracture, and reducing pain for patients

Active Publication Date: 2017-05-31
SHANGHAI TONGJI HOSPITAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The commonly used steel plate is cuboid, and its longitudinal section is rectangular (such as Figure 1A -B), the longer the steel plate, the longer its moment arm, the greater the force that the middle part of the steel plate bears, and it will bend longitudinally under the action of a strong external force, resulting in instability of the fractured end, and even the risk of breaking
[0003] Chinese patent 201310615416.X discloses a knee joint platform steel plate. The steel plate is Z-shaped as a whole and consists of a steel plate head, a plate body and a steel plate tail. The steel plate head and the steel plate tail are rotationally symmetrical with a rotation angle of 180 degrees. The steel plate head and the steel plate tail are respectively provided with several through holes; the thickness of the plate body is greater than the thickness of the steel plate head and the steel plate tail; the two sides of the plate body are provided with grooves; the number of said through holes is three; the steel plate The edges of the head and the tail of the steel plate are arc-shaped; the steel plate of this technical solution is also T-shaped, but when in use, its longitudinal section is still rectangular, which cannot effectively avoid the risk of bending of the steel plate at the fracture end
Chinese patent 201210002010.X discloses a curved trapezoidal locking plate for the treatment of femoral neck fractures. Radian, there is a center hole in the center of the trapezoidal locking steel plate, and there are 6 locking holes on the trapezoidal locking steel plate. The three directions of the end and the lower right end are divergently arranged, and two locking holes are arranged in each direction, and locking screws are arranged on the locking holes; although the thickness of the plate body (fracture end) of the plate is greater than that of the fixed end (head and tail) , but the connection between the body and the head and tail is relatively thin, and it is still prone to breakage under the action of external force during use

Method used

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  • Internal fixation steel plate of increasing fixation strength
  • Internal fixation steel plate of increasing fixation strength
  • Internal fixation steel plate of increasing fixation strength

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Experimental program
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Effect test

Embodiment 1

[0039] Embodiment 1 Internal fixation steel plate with increased fixation strength of the present invention

[0040] See Figure 1- figure 2 . Fig. 1 is a structural schematic diagram of a fixed steel plate in the prior art. in Figure 1A is a schematic diagram of the longitudinal section of the steel plate before breaking, Figure 1B It is a schematic diagram of the longitudinal section of the steel plate after being broken. figure 2 It is a structural schematic diagram of the internal fixed steel plate of the present invention. in figure 2 A is a schematic diagram of the longitudinal section of the fixed steel plate, figure 2 B is a schematic diagram of the use state.

[0041] An internal fixation steel plate with increased fixing strength, including a steel plate body 1, the longitudinal section of the steel plate body 1 is a part of an isosceles triangle with three corners removed, and the included angle between the hypotenuse and the base of the isosceles triangl...

Embodiment 2

[0044] Embodiment 2 The improved structure of the present invention

[0045] See Figure 3-Figure 7 . image 3 It is a schematic diagram of the improved structure of the internal fixed steel plate of the present invention, and Fig. 4 is a schematic diagram of the disassembled internal fixed steel plate of the present invention, wherein Figure 4A is the upper fixed segment, Figure 4B for the plug-in section, Figure 4C is the lower fixed segment, Figure 5 for Figure 4A top view of Figure 6 for Figure 4B top view of Figure 7 for Figure 4C top view.

[0046] An internal fixation steel plate with increased fixing strength, including a steel plate body 1, the longitudinal section of the steel plate body 1 is a part of an isosceles triangle with three corners removed, and the included angle between the hypotenuse and the base of the isosceles triangle is 5-30 degrees, the longitudinal section of the steel plate body 1 includes a lower edge 18 fixed in contact with ...

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Abstract

The invention relates to an internal fixation steel plate of increasing fixation strength. The internal fixation steel plate comprises a steel plate body (1), the longitudinal section of the steel plate body (1) is a part of an isosceles triangle with the three angels removed. According to the internal fixation steel plate, the shape of the steel plate is improved, a shape body slightly thick in the middle and slightly thin in the two ends is formed, so that the steel plate becomes a cross section similar to a triangle on the longitudinal section, the steadiness of the triangle is better than a rectangular shape, so that the possibility of the bending and breaking of the internal fixation steel may not occur under the action of an external force, and the stability and fixation strength fixed on the fracture end are increased.

Description

technical field [0001] The invention relates to the field of technical medical equipment, in particular to an internal fixation steel plate with increased fixation strength. Background technique [0002] Steel plate is a very commonly used surgical instrument in orthopedic clinics. The fracture end is fixed by the plate to stabilize the fracture end and finally achieve the purpose of healing. The commonly used steel plate is cuboid, and its longitudinal section is rectangular (such as Figure 1A -B), the longer the steel plate, the longer its moment arm, the greater the force that the middle part of the steel plate bears, and it will bend longitudinally under the action of a strong external force, resulting in instability of the fractured end, and even the risk of breaking . [0003] Chinese patent 201310615416.X discloses a knee joint platform steel plate. The steel plate is Z-shaped as a whole and consists of a steel plate head, a plate body and a steel plate tail. The st...

Claims

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Application Information

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IPC IPC(8): A61B17/80
CPCA61B17/80A61B17/8023A61B2017/564Y02E10/50
Inventor 王欣
Owner SHANGHAI TONGJI HOSPITAL