The Swedish medical device company Promimic has announced that a new study demonstrates that its nanothin implant coating HAnano Surface enables the implant material PEEK to integrate with bone. PEEK is a popular implant material, but implants made of PEEK typically require a coating to facilitate bone integration.
HAnano Surface is based on nanothin coatings of the substance hydroxyapatite (HA). The company has developed a wet chemical method of producting nanoparticles of HA. The technique creates a surface with high wettability, a proven factor to improve osseointegration. Because of the material’s small pores, even complex materials can be coated.
The coating can be used with various implant materials, including metals, ceramics and polymers, to enhance the anchoring strength and accelerate bone integration. Several in-vivo studies have demonstrated that the coating serves these purpose. Implants coated with the material are up to four times harder anchored just after four weeks of healing, according to the company.
Promimic recently obtained a US patent for the material. It already holds patents for the product in several countries, including Sweden, Israel, China and Russia. The company was founded in 2004 by two researchers from Chalmers University of Technology (Gothenburg, Sweden).Camilla Andersson