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Implants made of fiber-reinforced plastic

A technology of implants and fibers, applied in the field of implants, can solve the problems of high plaque affinity, unfavorable load distribution of surrounding bone, unfavorable, etc., to avoid disadvantages, minimize the risk of unfavorable mechanical stress and fracture, and reduce plaque Adhesion effect

Active Publication Date: 2021-08-27
安德烈亚斯施维塔拉 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0013] Titanium has an additional disadvantage: has a high plaque affinity, which is particularly disadvantageous when it is used as a dental implant
Instead, it was found that the increased elasticity of the outer layer of the implant-bone interface of each implant resulted in its unfavorable load distribution to the surrounding bone, which resulted in bone damage and allowed connective tissue to cover the implant

Method used

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  • Implants made of fiber-reinforced plastic
  • Implants made of fiber-reinforced plastic
  • Implants made of fiber-reinforced plastic

Examples

Experimental program
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Embodiment Construction

[0274] A finite element analysis was carried out to examine when a PEEK implant according to the invention reinforced by random multi-directionally arranged continuous carbon fibers (fiber content about 55%) is exposed to stress compared to a PEEK implant according to WO 2014 / 198421 A1. mechanical action on the bone surrounding the implant.

[0275] Materials and Methods:

[0276] Two simplified cylindrical implant models were established. According to the invention, the first implant model consists of only one component (1-C) made of PEEK reinforced with 55% random multidirectional continuous carbon fibers (55-CFR-PEEK) and matched to the implant. into things.

[0277] The second implant model consists of two components (2-C): the implant core is made of the same type of PEEK as the 1-C implant model (55-CFR-PEEK), and the implant shell is The implant has a layer thickness of 0.5 mm in the surface region and consists of TiO2-filled PEEK. figure 1 Longitudinal cross-sectio...

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Abstract

The invention relates to an implant made of plastic, characterized in that it contains a thermoplastic reinforced by long fibers arranged multidirectionally in an oriented manner and having an elastic modulus E of 10 to 70 GPa. The invention also relates to a system for manufacturing an implant according to the invention, comprising: means for collecting patient data about the environment in which the implant is implanted; for creating a custom implant based on the collected patient data a computer program for an implant model; and an apparatus for manufacturing a custom implant based on the computational model by 3D printing or laser sintering.

Description

technical field [0001] The invention relates to an implant made of plastic, characterized in that it contains a thermoplastic material reinforced by long fibers arranged multidirectionally in an oriented manner and having an elastic modulus E of 10 to 70 GPa. The invention also relates to a system for manufacturing an implant according to the invention, comprising: means for collecting patient data about the environment in which the implant is implanted; for creating a custom implant based on the collected patient data a computer program for an implant model; and an apparatus for manufacturing a custom implant based on the computational model by 3D printing or laser sintering. Background technique [0002] An implant is a man-made material that is implanted in a human or animal body in connection with the constituents of the bone therein and is intended to remain there permanently or at least for an extended period of time. Implants are used when natural tissues or natural ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61C8/00A61C13/00
CPCA61C8/0016A61C13/0004A61C13/0006A61C13/0013A61C13/0018A61C13/0019A61L2430/12
Inventor 安德烈亚斯·施维塔拉沃尔夫-迪特尔·米勒
Owner 安德烈亚斯施维塔拉