Locking metal bone fracture fixation plate

A bone plate and metal technology, which is applied in the direction of outer plate, fixer, and internal bone synthesis, can solve the problems of large size, reduced bone plate strength, and poor bone plate strength, and achieve simple structure, good stability, and increased strength. Effect

Inactive Publication Date: 2015-10-21
BEIJING BEST BIO TECHN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The bone plate of the first structure has too many through holes, resulting in poor strength of the bone plate; while the bone plate of the second structure has its pressurized hole and locking hole connected together, but the through hole longitudinal The larger size reduces the strength of the bone plate to a certain extent
Therefore, for the bone plate with the second structure, further improve its structure to solve the problem of poor strength of the bone plate

Method used

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  • Locking metal bone fracture fixation plate
  • Locking metal bone fracture fixation plate
  • Locking metal bone fracture fixation plate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Such as figure 1 , 2 As shown, a locking metal bone plate includes a bone plate body 1, the bone plate body is made of Ti-6Al-4V, both sides of the bone plate body 1 are provided with staggered semicircular convex edges 2, the bone plate The cross section of the body 1 and the flange 2 is a circular arc structure. The bone plate body 1 is provided with a through hole 3, which is located between the bone plate body 1 and the flange 2. The through hole 3 is composed of a pressure hole 4 and a The threaded hole 5 is composed of superimposed parts. The pressure hole 4 is a circular structure. The upper and lower parts of the threaded hole 5 are respectively a coarse thread 6 and a fine thread 7. There is an inclined reinforcement between two adjacent through holes 5. The rib 8, the included angle between the reinforcing rib 8 and the length direction of the bone plate body 1 is 45°.

[0019] The working process of this embodiment: when in use, fit the inner surface of the...

Embodiment 2

[0021] Such as image 3 As shown, a locking metal bone plate includes a bone plate body 1, the bone plate body is made of Ti-6Al-7Nb, both sides of the bone plate body 1 are provided with staggered semicircular flanges 2, the bone plate The cross section of the body 1 and the flange 2 is a circular arc structure. The bone plate body 1 is provided with a through hole 3, which is located between the bone plate body 1 and the flange 2. The through hole 3 is composed of a pressure hole 4 and a The threaded hole 5 is composed of superimposed parts. The pressure hole 4 is a waist-shaped structure. The upper and lower parts of the threaded hole 5 are respectively a coarse thread 6 and a fine thread 7. There is an inclined reinforcement between two adjacent through holes 5. The rib 8, the included angle between the reinforcing rib 8 and the length direction of the bone plate body 1 is 50°.

[0022] The working process of the present embodiment: the same as embodiment one.

Embodiment 3

[0024] Such as Figure 4 As shown, a locking metal bone plate includes a bone plate body 1, the material of the bone plate body is 00Cr18Ni 14Mo3, two sides of the bone plate body 1 are provided with rounded square convex edges 2 arranged alternately, the bone plate body 1 and The cross-section of the flange 2 is arc-shaped. The bone plate body 1 is provided with a through hole 3, which is located between the bone plate body 1 and the flange 2. The through hole 3 is composed of a pressure hole 4 and a threaded hole 5. Partially superimposed, the pressure hole 4 is a waist-shaped structure, the upper and lower parts of the threaded hole 5 are respectively a coarse thread 6 and a fine thread 7, and a reinforcing rib 8 arranged obliquely is arranged between two adjacent through holes 5, The included angle between the reinforcing rib 8 and the longitudinal direction of the bone plate body 1 is 60°.

[0025] The working process of the present embodiment: the same as embodiment one...

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Abstract

The invention provides a locking metal bone fracture fixation plate and belongs to the field of medical instruments for the orthopedics department. The locking metal bone fracture fixation plate comprises a bone fracture fixation plate body. Protruding edges arranged in a staggered mode are arranged at the two sides of the bone fracture fixation plate body. Through holes are formed in the bone fracture fixation plate body, located between the bone fracture fixation plate body and the protruding edges, and formed by pressurizing holes and threaded holes in an overlapped mode. A coarse thread and a fine thread are arranged on the upper portion and the lower portion of each threaded hole respectively. Reinforcing ribs arranged obliquely are arranged between every two adjacent through holes. The locking metal bone fracture fixation plate is simple in structure; as the protruding edges and the reinforcing ribs arranged obliquely are additionally arranged according to the design, the design is reasonable, the strength of the bone fracture fixation plate body can be improved, and the bone fracture fixation plate body is prevented from breaking; moreover, as the threaded holes comprise the coarse threads and the fine threads, the locking metal bone fracture fixation plate is convenient to install, good in stability and bone fracture fixation effect, and high in clinical use safety.

Description

technical field [0001] The invention relates to the field of orthopedic medical instruments, in particular to a locking metal bone plate. Background technique [0002] Locking bone plate is currently the most commonly used internal fixation device for treating fractures at home and abroad. One of the existing locking bone plates is that the pressure hole and the locking hole are independent and separate; the other is that the pressure hole and the locking hole are connected together. That is to say, the through hole is partially overlapped by the pressure hole and the locking hole, that is, the center of the terminal end of the pressure hole does not coincide with the center of the locking hole. Although the pressure hole and the locking hole of the bone plate with this structure are connected together, the Its pressurizing and locking functions are independent, that is, it needs to be pressurized with the ball head screw first, then locked with the locking screw in other lo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/80
CPCA61B17/80
Inventor 张宝龙孙守贵张宝顺
Owner BEIJING BEST BIO TECHN
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