Method for Biomimetic Growth of Calcium Phosphates Ceramics on Metal Implants

Simple SummaryContent extracted from patent full text and abstract with AI.

This invention relates to a novel method for coating metal implants, especially titanium and its alloys, with thin, durable layers of calcium phosphate ceramics through a biomimetic, environmentally friendly wet process. It involves preparing the implant surface using mechanical, chemical, and thermal treatments to create an optimal grafting layer, followed by a controlled precipitation process where specific calcium phosphate phases are deposited. This method results in a strong bond between the implant and the ceramic layer, enables precise control over coating properties, works at near-room temperature, and is faster and more cost-efficient than traditional methods.

Use CasesContent extracted from patent full text and abstract with AI.

• Enhancing the surface of dental implants to improve osseointegration and reduce healing times.
• Coating orthopedic implants (e.g., bone screws, artificial knees and hips) with calcium phosphate to improve bone attachment and long-term performance.
• Improving spinal or craniomaxillofacial implants for better integration with surrounding bone tissue.
• Producing next-generation biomedical metal implants with enhanced bioactivity and durability.
• Tailoring metal implant surfaces to optimize mechanical and biological compatibility for specialized medical applications.

BenefitsContent extracted from patent full text and abstract with AI.

• Provides a thin, strongly bonded, and durable calcium phosphate coating on metal implants, reducing risk of delamination and implant failure.
• Enables rapid and efficient coating at low temperatures, minimizing energy consumption and cost.
• Environmentally friendly process with low chemical waste and mild processing conditions.
• Allows precise control over coating thickness, porosity, morphology, and ceramic phase, enabling customization for specific implant applications.
• Shortens healing time post-implantation due to improved bone integration, enhancing patient outcomes.
• Scalable method suitable for both laboratory and industrial production of coated implants with consistent quality.

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Patent Abstract

The objective of the present invention to provide a method for growth of calcium phosphates ceramics (CPs) on metal implants, particularly on Ti and Ti-alloy implants, that generates thin and durable coatings of metal implants without the limitation of other techniques known in the art. This objective is achieved according to the present invention by a biomimetic method for which comprises the following steps: a) a combination of mechanical, chemical, and thermal treatments in order to generate an appropriate grafting layer on the metal implant; and b) a coating procedure of the treated metal implant by controlled CaPc precipitation. The results demonstrated that metal implants can be efficiently coated with CaPc in a short time using a wet method, offering unprecedented opportunities. This wet route is carried out at almost room temperature, at low cost, with an environmental-friendly method with low energy consumption, and in a short time. According to the invention, an innovative and extremely competitive method for coating of metal implants with CaPc is claimed.