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Metal bone fracture screw

A bone screw and metal technology, applied in the field of metal bone screws, can solve problems affecting bone fixation, easy to corrode, difficult to remove, etc., to achieve the effects of ensuring life safety, enhancing corrosion resistance, and improving safety

Inactive Publication Date: 2013-04-10
常州市武进金兴达医疗器械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In hospital orthopedic surgery, these complex bone screws are often used to connect broken bones. However, screws with complex structures are not only difficult to install, but also difficult to remove.
There are not many types of these bone screws, which cannot meet the needs of various lengths, thicknesses, and thicknesses of broken bones.
At the same time, due to the poor corrosion resistance of some bone screws, it is easy to corrode when the bone screw is fixed on the bone for a long time, which will affect the fixation of the bone.

Method used

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  • Metal bone fracture screw
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Such as figure 1 and figure 2 A metal bone screw is shown, which is used for fracture fixation. It has a screw head 1 and a threaded section 2 integrally structured with the screw head 1. A regular-shaped groove 3 is opened at the center of the screw head 1. The diameter of the threaded section 2 is 1.5-12mm, and the length of thread segment 2 is 6-120mm. The cross section of the slot 3 is quadrilateral, the screw head 1 and the threaded section 2 are made of 00Cr18Ni14Mo3 stainless steel or Ti6AI4V titanium alloy, the screw head 1 is spherical, and the distance between two adjacent threads of the threaded section 2 is equal.

Embodiment 2

[0029] Such as image 3 and Figure 4 A metal bone screw is shown, which is used for fracture fixation. It has a screw head 1 and a threaded section 2 integrally structured with the screw head 1. A regular-shaped groove 3 is opened at the center of the screw head 1. The diameter of the threaded section 2 is 1.5-12mm, and the length of thread segment 2 is 6-120mm. The cross-sectional shape of groove 3 is hexagonal, screw head 1 and thread segment 2 are made of 00Cr18Ni14Mo3 stainless steel or Ti6AI4V titanium alloy, screw head 1 is spherical, and the distance between two adjacent threads of thread segment 2 equal.

Embodiment 3

[0031] Such as Figure 5 and Figure 6 A metal bone screw is shown, which is used for fracture fixation. It has a screw head 1 and a threaded section 2 integrally structured with the screw head 1. A regular-shaped groove 3 is opened at the center of the screw head 1. The diameter of the threaded section 2 is 1.5-12mm, and the length of thread segment 2 is 6-120mm. The cross-sectional shape of groove 3 is cross-shaped, screw head 1 and thread segment 2 are made of 00Cr18Ni14Mo3 stainless steel or Ti6AI4V titanium alloy, screw head 1 is spherical, and the distance between two adjacent threads of thread segment 2 is equal .

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Abstract

The invention relates to a metal bone fracture screw, which is used for fixing in fracture. The metal bone fracture screw is provided with a screw head and a screw threaded section which is of an integral structure with the screw head, a groove with a regular shape is formed in the center of the screw head, the diameter of the screw section is 1.5-12mm, and the length of the screw section is 6-120mm. The metal bone fracture screw has the advantages of simple structure, multiple types, capability of satisfying the connections of various broken bones, and strong corrosion resistance.

Description

technical field [0001] The invention relates to the technical field of screws, in particular to a metal bone screw capable of connecting various broken bones. Background technique [0002] In order to improve the performance of the screws used for fixation, medical device manufacturers will make the structure of bone screws more complicated. Orthopedic surgery in hospitals often use these bone screws with relatively complex structures to connect broken bones. However, screws with complex structures are not only difficult to install, but also difficult to remove. There are not many models of these bone screws, which cannot satisfy the connection of various lengths, thicknesses, and thicknesses of broken bones. Simultaneously, because the corrosion resistance of some bone screws is relatively poor, so the bone screw is fixed on the bone for a long time, the phenomenon of corrosion easily occurs, which will affect the fixation of the bone. Contents of the invention [0003]...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/86A61B17/68
Inventor 吴文杰何林峰窦一峰
Owner 常州市武进金兴达医疗器械有限公司