Porous coating for surgical orthopedic implants

摘要

A surgical implant component comprising an implant component body manufactured from a Co-based substrate alloy comprising Co, Cr, Mo, Si, and C, and a coating on a bone-ingrowth surface of the component body manufactured from a Co-based coating alloy comprising Co, Cr, Mo, Si, C and B. The coating is a network of fused particles of the Co-based coating alloy with spherical particles, irregular aspherical particles, and between about 35 and about 70 volume % porosity. A method of manufacturing the foregoing surgical implant component.

主权项

1. A surgical implant component comprising:
an implant component body manufactured from a Co-based substrate alloy comprising Co, Cr, Mo, Si, and C; and a coating on a bone-ingrowth surface of the component body manufactured from a Co-based coating alloy comprising Co, Cr, Mo, Si, C and B; wherein the coating is a network of fused particles of the Co-based coating alloy, the network of fused particles forming an exterior surface on the bone-ingrowth surface and including a mixture between 60 and 90 volume % spherical particles and between 10 and 40 volume % irregular aspherical particles; and at least about 70 volume % of the spherical particles have a particle size between about 75 and about 150 microns and at least about 70 volume % of the irregular aspherical particles have a particle size between about 355 and about 425 microns; and wherein the coating further comprises pores and between about 35 and about 70 volume % porosity.