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Alloy bone nail and manufacturing process thereof

A manufacturing process and technology of bone nails, applied in the direction of internal bone synthesis, fixers, fastening devices, etc., can solve the problems of insufficient research and reports, and achieve the goal of promoting bone growth, uniform force, and promoting surgical recovery Effect

Inactive Publication Date: 2011-05-25
DONGGUAN EONTEC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, there are not enough studies and reports on the manufacturing process of magnesium alloy bone nails or alloy bone nails.
Due to the special properties of magnesium alloy and other materials, it cannot be made with conventional techniques and equipment for making stainless steel bone nails.

Method used

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  • Alloy bone nail and manufacturing process thereof
  • Alloy bone nail and manufacturing process thereof
  • Alloy bone nail and manufacturing process thereof

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Embodiment Construction

[0020] The present invention will be further described below in conjunction with specific embodiments and accompanying drawings.

[0021] Such as figure 1 As shown, the alloy bone screw of the present invention has a bone screw body 1, the bone screw body 1 has an axial insertion hole 11 with a non-circular cross section, and the bone screw body also has several non-axial To the through hole 12.

[0022] In the alloy bone screw of the present invention, the axial and non-circular cross-section socket 11 on the bone screw body 1 is used to deeply insert the screwdriver corresponding to the shape of the socket 11 when implanting. In the jack hole 11, the rotation implantation operation is carried out, which is conducive to making the overall force of the bone nail uniform and stable, without slipping teeth or bone nail breakage, and ensuring the smooth progress of the implantation operation; the function of the non-axial through hole 12 is After the bone nail is implanted, bon...

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Abstract

The invention relates to an alloy bone nail and a manufacturing process thereof. The alloy bone nail is provided with a bone nail body, wherein the bone nail body is provided with an axial plug hole with a noncircular cross section and a plurality of non-axial through holes. The manufacturing process comprises the following steps of: a, preparing a cylindrical alloy blank; b, drilling an axle hole along the axial direction of the cylindrical alloy blank; c, inserting a strip-shaped hard core body with a noncircular cross section into the axle hole to guarantee that the outer end face of the hard core body is protruded out of the end face of the alloy blank; d, placing the alloy blank in which the hard core body is inserted into a bone nail mould for forging and stamping to obtain a bone nail semi-finished product; e, trimming the bone nail semi-finished product and turning threads on the surface of the bone nail semi-finished product to manufacture a bone nail finished product; and f, taking the hard core body in the bone nail finished product out and drilling the plurality of through holes on the bone nail finished product along the non-axial direction. The bone nail is uniformly and stably stressed when implanted, and has a good implantation effect and a simple manufacturing process.

Description

Technical field: [0001] The invention relates to the technical field of manufacturing technology of medical equipment, in particular to an alloy bone nail and its manufacturing technology. Background technique: [0002] The bone nails used in medicine are generally made of stainless steel bone nails. The production process of stainless steel bone nails is mature, but because they cannot be automatically degraded in the body, they need to be removed after a second operation, which brings great pain to the patients and will gradually be degradable. Nail replacement. At present, most of the degradable materials are polymer materials. The bone screws made of such degradable polymer materials have low strength and poor rigidity during use; they tend to lose strength prematurely during the degradation process, causing the bone screw components to fail early, resulting in implant failure. Input failure; production and processing requirements are high, requiring special processing ...

Claims

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Application Information

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IPC IPC(8): A61B17/86
Inventor 李扬德
Owner DONGGUAN EONTEC CO LTD
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