Biocompatible Protective Coating on Medical Implant Substrate
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Solution Overview
Problem
Existing medical implant components face issues with insufficient biocompatibility, durability, and strength, along with high production costs and limited material applicability, leading to adverse effects such as bio-chemical corrosion and mechanical abrasion.
Innovation Solution
A medical implant component featuring a biocompatible substrate with a low-porosity biocompatible protective coating layer (BPCL) and optional buffer layer, deposited using aerosol deposition, which enhances adhesion and reduces surface roughness, thereby improving durability and biocompatibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing coatings are applied on medical implant surfaces, then some performance enhancement is achieved, but biocompatibility, durability, and strength remain insufficient
Solution Approach 1:
The patent changes the porosity parameter of the coating layer to less than 1.5% (preferably 1% or less) to significantly improve biocompatibility and durability. This parameter modification transforms the coating from a conventional high-porosity structure to a dense, biocompatible layer that resists corrosion and enhances implant longevity without requiring complex multi-step manufacturing processes.
2Reliability
If existing coating processes are used, then some protective function is provided, but production costs remain high and material applicability is limited
Solution Approach 1:
The patent modifies the porosity parameter to less than 1.5% and specifies a thickness range of 0.5 μm to 70 μm (preferably 5 to 30 μm) for the protective coating layer. These parameter changes enable the use of simpler, more cost-effective deposition processes while achieving superior durability and resistance to mechanical abrasion and bio-chemical corrosion across various implant materials.
3Strength
If conventional coating methods are applied, then surface protection is provided, but adhesion is insufficient and surface roughness remains high
Solution Approach 1:
The patent changes the surface roughness parameter to less than 0.25 μm (preferably 0.2 μm or less) and controls coating thickness within 0.5 μm to 70 μm. This parameter modification significantly improves adhesion between the coating and substrate while reducing surface roughness, thereby enhancing the overall performance and longevity of the medical implant without requiring complex surface treatment processes.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution results in medical implant components with superior durability, anti-abrasion properties, low friction, and enhanced biocompatibility, suitable for various applications including artificial joints and temporary anchorage devices, with reduced production costs and improved longevity.
Implementation Method 1
depositing a material of a biocompatible protective coating layer to form the biocompatible protective layer above or on the substrate
Data Source
Figure 1
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Figure 3A~3C
AI summary
The present disclosure relates to medical implant components comprising a biocompatible protective coating layer (BPCL) and a process of making the BPCL and medical implant components.