SINTX Technologies has been granted a patent for methods to enhance the antibacterial properties of biomedical implants. The methods involve subjecting a silicon nitride ceramic implant to surface roughening treatment or applying a coating of silicon nitride ceramic material. The patent also includes a claim for applying a SiYAION coating on a biomedical implant made of poly-ether-ether-ketone (PEEK) and/or titanium substrate material. The coating can be applied using various techniques and has a thickness range of 1 µm to 125 µm. GlobalData’s report on SINTX Technologies gives a 360-degree view of the company including its patenting strategy. Buy the report here.

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According to GlobalData’s company profile on SINTX Technologies, prosthetic cardiac valves was a key innovation area identified from patents. SINTX Technologies's grant share as of September 2023 was 34%. Grant share is based on the ratio of number of grants to total number of patents.

Patent granted for improving antibacterial characteristics of biomedical implants

Source: United States Patent and Trademark Office (USPTO). Credit: SINTX Technologies Inc

A recently granted patent (Publication Number: US11738122B2) describes a method for enhancing the antibacterial properties of biomedical implants. The method involves applying a coating of SiYAION onto a biomedical implant made of poly-ether-ether-ketone (PEEK) and/or titanium substrate material. The coating can be applied using various techniques such as chemical vapor deposition (CVD), physical vapor deposition (PVD), plasma spraying, electro-deposition, electrophoretic deposition, slurry coating, or high-temperature diffusion. The thickness of the SiYAION coating ranges from 1 µm to 125 µm.

The patent claims that the SiYAION coating, particularly ß-SiYAION, improves the bacterial resistance of the biomedical implant compared to the substrate material alone. The coated implant can be used in various applications, including intervertebral spinal implants, hip implants, orthopedic plates, and bone screws. The substrate material of the implant can be PEEK or titanium.

In addition to the method, the patent also describes a biomedical implant with enhanced antibacterial characteristics. The implant consists of a PEEK and/or titanium substrate material with a coating of ß-SiYAION. The coating, applied using techniques like CVD, PVD, plasma spraying, electro-deposition, electrophoretic deposition, slurry coating, or high-temperature diffusion, has a thickness ranging from 1 µm to 125 µm. The patent claims that this coated implant exhibits increased bacterial resistance compared to the substrate material alone.

Furthermore, the patent introduces another variation of the biomedical implant. This implant comprises a polymeric substrate material filled with approximately 10 vol. % to 20 vol. % of a powder consisting of ß-SiYAION. Similar to the previous implant, this variation can be used in intervertebral spinal implants, hip implants, orthopedic plates, or bone screws. The substrate material in this case is poly-ether-ether-ketone (PEEK).

Overall, the patent presents a method and various embodiments of biomedical implants with improved antibacterial characteristics. The use of SiYAION coatings, particularly ß-SiYAION, on PEEK and/or titanium substrates enhances the bacterial resistance of the implants. These advancements have potential applications in the field of medical implants, particularly in intervertebral spinal implants, hip implants, orthopedic plates, and bone screws.

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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.