Medical titanium alloy fixing screw with inner thread head

A technology of fixing screws and titanium alloys, applied in internal bone synthesis, fixers, medical science, etc., can solve problems such as stress barriers, poor biocompatibility, damage, etc., to enhance the ability to resist crack initiation, reduce structural damage, Effect of improving safety and service life

Pending Publication Date: 2018-12-28
BAOJI CHUANGXIN METAL MATERIALS
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Problems solved by technology

[0006] At least one object of the present invention is to propose a medical titanium alloy fixation screw with an internally threaded head, which solves the technical problems of stress barrier and poor biocompatibility existing in the prior art, and can also improve damage tolerance, And compared with the traditional design, it is more resistant to crack initiation, and the installation speed is faster, reducing the pain of the patient

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  • Medical titanium alloy fixing screw with inner thread head
  • Medical titanium alloy fixing screw with inner thread head
  • Medical titanium alloy fixing screw with inner thread head

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Embodiment Construction

[0026] Below you can refer to the attached figure 1 And the content of the text to understand the content of the present invention and the differences between the present invention and the prior art.

[0027] The technical solution of the present invention, including the preferred technical solution, will be further described in detail below by means of the accompanying drawings and by way of listing some optional embodiments of the present invention.

[0028] It should be noted that: any technical feature and any technical solution in this embodiment are one or more of a variety of optional technical features or optional technical solutions. Citing all the alternative technical features and alternative technical solutions of the present invention, it is not convenient for the implementation of each technical feature to emphasize that it is one of the optional multiple implementation modes, so those skilled in the art should know that: Replace any technical means provided by ...

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Abstract

The invention relates to the technical field of machining and making of medical titanium alloy, in particular to a medical titanium alloy fixing screw with an inner thread head. The medical titanium alloy fixing screw with the inner thread head comprises a screw rod (1) and a screw head (2) which is positioned at one end of the screw rod (1), wherein a longitudinal opening (21) which extends alongthe screw rod (1) is formed in a free end of the screw head (2); and inner threads (23) are arranged on the inner wall of the longitudinal opening (21). The medical titanium alloy fixing screw with the inner thread head is characterized in that the screw head (2) is a hexagonal screw head, the longitudinal opening (21) is a round hole, a transition section (12) is arranged at a position where thescrew rod (1) is combined to the screw head (2), and the radius of the transition section (12) is between the radius of the screw rod (1) and the radius of the screw head (2). The technical problem that in the prior art, stress barrier and biological compatibility are poor is solved. The injury tolerance can further be improved. Compared with a traditional design, the medical titanium alloy fixing screw with the inner thread head is higher than crack generation resistance and higher in mounting speed, and pain of a patient is relieved.

Description

technical field [0001] The invention relates to the technical field of medical titanium alloy processing and manufacturing, in particular to a medical titanium alloy fixing screw with an internal thread head. Background technique [0002] Medical titanium alloys are used to manufacture titanium alloys for medical devices, prostheses or artificial organs and auxiliary treatment equipment implanted in the human body. There are mainly titanium 6 aluminum 4 vanadium, titanium 5 aluminum 2.5 tin and other alloys. They have high specific strength, mechanical properties close to human bone, strength far superior to pure titanium, fatigue resistance, corrosion resistance and excellent biocompatibility. Among them, the good biocompatibility makes it have unique advantages compared with other metals, so it is widely favored in the medical field, but because of its low wear resistance and process performance, it is difficult to devote to its further improvement. ongoing. [0003] Th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/86
CPCA61B17/862A61B17/8615A61B17/8625A61B17/866A61B2017/00836
Inventor 唐金波王辰
Owner BAOJI CHUANGXIN METAL MATERIALS
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