| 摘要 |
A boron coating is applied to selected surfaces of surgical devices, including orthopedic prosthetic alloys and surgical tools to improve sliding wear and provide other benefits. The coating may be applied to CoCrMo, stainless steel, or titanium alloy components of artificial hips, knees, shoulders, and other articulating joints, which bear on wear partners and which experience rubbing wear during use of the joint. In such cases, the coating is preferably applied in particular to the rubbing wear surface of the CoCrMo alloy component to reduce wear of either the alloy component or the mating polymer component, for corrosion improvement, for biocompatibility, or for improvement in infection performance of the device. The boron coating may show evidence for reactive bonding to the substrate, which may include evidence of in-diffusion or of interdiffusion between the boron and the substrate material. The inventive boron or boron-based coating may also be applied to non-wear surfaces of the alloy to improve performance in terms of biocompatibility or infection resistance, as for hip joint stems or other fixation parts of devices. The inventive coating may also be applied to medical devices such as surgical tools to provide a hard, sharp cutting surface. A method of making boron-coated medical devices is also disclosed.
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