A novel surgical diamond spherical wheel to prevent bone adhesion with superhydrophobic and super-slippery coatings

Ordinary commercial diamond spherical wheels are extensively used in bone grinding surgeries. However, a persistent issue arises from bone debris adhering to the wheel surface, leading to elevated temperatures during the bone grinding process. To address this, the study developed a novel spherical wheel with a superhydrophobic and super-slippery coating to prevent the bone debris adhesion. Initially, a superhydrophobic and super-slippery coating was successfully designed and fabricated with mixture of ODA-GO, PDMS , KH-550, and epoxy resin E44. The coating's surface morphology , chemical composition, and durability were comprehensively characterized. Subsequently, the coating was applied to diamond spherical grinding wheels for bone grinding experiments. The results demonstrate that a coating with exposed ODA-GO forms a rough structure with optimal component parameters, achieving a contact angle of 158° and a sliding angle of 4.2°. Furthermore, the superhydrophobic and super-slippery coating exhibits exceptional wear and slipperiness resistance even after 100 cycles, maintaining a contact angle of 135° and a sliding angle of 8.5°. The use of this novel spherical wheel significantly mitigates bone debris adhesion. This study not only provides valuable insights into the mechanisms of anti-adhesion but also introduces a promising technique for enhancing the performance of diamond spherical wheels.