All-built-in expandable biocoating spine anterior internal fixation system

A bio-coating and fixing system technology, applied in the field of medical devices, can solve problems such as poor histocompatibility, and achieve the effect of promoting histocompatibility

Pending Publication Date: 2017-05-10
ZHUJIANG HOSPITAL SOUTHERN MEDICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a fully built-in expandable bio-coating anterior spinal fixation system to alleviate the technical problem of poor histocompatibility of traditional Chinese medical spinal fixation systems in the prior art

Method used

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  • All-built-in expandable biocoating spine anterior internal fixation system
  • All-built-in expandable biocoating spine anterior internal fixation system
  • All-built-in expandable biocoating spine anterior internal fixation system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] Embodiment 1 biological coating

[0055] figure 1 A schematic diagram of the biocoating is shown, wherein the matrix 3 represents the nail 4 , the nail core 5 , the connecting rod 6 and the screw plug 7 in the fully built-in expandable biocoating anterior spinal fixation system of the present invention. The base layer 1 is directly sprayed on the substrate 3, and the surface layer 2 is sprayed on the base layer 1. The base layer 1 is a nano-hydroxyapatite-graphene coating, wherein the mass ratio of nano-hydroxyapatite to graphene is 100:1.2; the surface layer 2 is a nano-hydroxyapatite coating.

[0056] The bio-coated base layer 1 of the fully built-in expandable bio-coated anterior spinal internal fixation system provided by the present invention not only has the effect of promoting tissue compatibility, but also plays the role of increasing strength. The surface layer 2 The histocompatibility of the coating is further improved. Since the biological coating provided...

Embodiment 2

[0057] The preparation method of embodiment 2 biological coatings

[0058] This embodiment provides a fully built-in expandable biocoating method for spraying biocoating in an anterior spinal fixation system, including the following steps:

[0059] Step (a), pre-protection: performing pre-protection, sandblasting and cleaning treatment on the fixing nail 4, the nail core 5, the connecting rod 6 and the screw plug 7;

[0060] Step (b), spraying of the base layer 1: Ultrasonic dispersion of nano-hydroxyapatite and graphene to obtain a nano-hydroxyapatite-graphene mixture, spraying the nano-hydroxyapatite-graphene mixture onto the fixing nail 4, The surface of nail core 5, connecting rod 6 and screw plug 7 forms the base layer 1;

[0061] Step (c), spraying of the surface layer 2 : spraying nano-hydroxyapatite on the surface of the base layer 1 to form the surface layer 2 .

[0062] The spraying process parameters are: spraying current 525A, spraying voltage 64V, spraying dista...

Embodiment 3

[0063] Example 3 Fully built-in expandable biological coating anterior spinal fixation system

[0064] This embodiment provides a fully built-in expandable bio-coating anterior spinal fixation system, including a fixation nail 4, a nail core 5, a connecting rod 6 and a screw plug 7, such as figure 2 , 3 , 4, 5 and 6.

[0065] figure 2 A schematic diagram of the fixing nail 4 provided in Embodiment 3 of the present invention, image 3 A cross-sectional view of the fixing nail 4 provided for Embodiment 3 of the present invention, wherein the fixing nail 4 is a hollow cylindrical structure, including an expansion part 41, a connecting part 42 and a tail part 43; the expansion part 41 is evenly divided to form six expansion petals 411, the inner side of each expansion flap 411 is provided with a protrusion 412, the nail core 5 can be inserted into the interior of the fixing nail 4 from the tail 43, when the nail core 5 is inserted into the interior of the fixing nail 4, the n...

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Abstract

The invention provides an all built-in expandable biocoating spine anterior internal fixation system, relating to the technical field of medical devices. The all-built-in expandable biocoating spine anterior internal fixation system provided by the invention comprises a fastening nail, a nail core, a connecting rod and a plug screw, and a nano-hydroxyapatite-graphene coating and a nano-hydroxyapatite coating which are cooperated with each other coat the surfaces of the fastening nail, the nail core, the connecting rod and the plug screw, so that tissue compatibility of the fixation system is effectively promoted.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a fully built-in expandable biological coating anterior spinal fixation system. Background technique [0002] The bones of the human body are the key to supporting the human body. They are connected by joints, muscles, ligaments and other tissues to form a whole. They have multiple functions such as support, protection, exercise, metabolism, and hematopoiesis. The absence of bones will cause great obstacles to human life and even survival. . [0003] Bones play an important role in the maintenance of normal human life, but in human life, due to diseases or accidents, bone damage is often caused. At this time, surgical intervention is required, and alternative or auxiliary Sexual medical devices, auxiliary fixation of damaged bones, and even replacement of damaged bones with artificial devices. At present, this surgical method has become very common. However, most of the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/70A61L31/08A61L31/14
CPCA61L31/084A61L31/086A61L31/14A61B17/7002A61B17/7032A61B17/7074A61B2017/564A61L2420/06A61L2420/08A61L2420/02A61L2400/18
Inventor 周初松黄学良
Owner ZHUJIANG HOSPITAL SOUTHERN MEDICAL UNIV
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