Medical Device Coatings & CO2 Cleaning
TST has developed a family of oxide ceramics coatings that provide electrical insulation for medical instruments. The coatings are engineered to provide specific dielectric properties to a variety of surfaces and components. In many cases these coatings can be deposited onto select surfaces with a high degree of accuracy. Some of the properties of these coatings include:
- Dielectric strengths as great as 1000 volts/ 0.001 in
- Hardness greater than 900 Vickers
- High density with porosity levels less than 0.5%
- White, gray, or black color
- Excellent adhesion with bond strengths of ≥ 8,000 psi
- Coating thickness from 0.001-0.020 inch
Thermal Barrier/Heat Management
Thermal barrier coatings engineered for use in aerospace engines can be used to provide thermal insulation to surfaces of medical devices. These coatings are comprised of oxide ceramics. The thermal conductivity of these coatings can be controlled by the composition of the coating chemistry and the structure of the coating. Thermal conductivity can be engineered to be as low as 0.5 W/(m K) through controlling coating chemistry and coating deposition parameters. These coatings can also be selectively deposited onto specific surface requiring thermal protection or insulation.
Coatings comprised of oxide ceramics, carbides, or hard metals can be deposited on medical device surfaces to provide extreme wear resistant properties. These coatings with hardness’s as high as 1500 Vickers can greatly improve the life of critical surfaces by preventing wear.
Several coating alloys typically containing high contents of copper can be produced to provide anti-microbial surfaces. These coatings have proven to effectively kill many types of contagious viruses. These coatings can be applied to large and small surfaces to help prevent the spreading of viruses and bacterial infections.
CO2 Cleaning for Medical Part Manufacturing
CO2 cleaning is a cold, dry process without the use of water or detergents. CO2 cleaning uses ISO Class 2.2.2 CDA and beverage grade CO2 (ISBT 2001 Quality Guidelines). The low “hardness” of CO2 particles yields a non-abrasive cleaning process that can be used on a wide variety of substrates. Recognized by the USEOA as a safe and preferred industrial process technology, Cool Clean has been FDA-approved for cleaning tooling and implantables.