FIELD: medicine.
SUBSTANCE: invention relates to a method for manufacturing an implant. The method is carried out using composite powder with micro-structured particles, in which composite powder is initially obtained by binding large particles with small particles. Large particles have an average particle diameter in the range from 10 mcm to 10 mm and contain at least one absorbable thermoplastic polymer. Small particles are placed on the surface of large particles and/or are inhomogeneously distributed within large particles, and they contain calcium salt. Small particles have an average particle size in the range from 0.01 mcm to 1.0 mm. The implant is subsequently obtained by selective laser sintering of a composition containing composite powder. Composite powder particles have an average particle size d50 in the range from 10 mcm to less than 200 mcm, and a fine fraction of composite powder, which is defined as particles smaller than 20 mcm, is less than 50% of the volume.
EFFECT: technical result is that the production of the implant, material of which has improved laser sinterability and, in particular, improved flowability, during laser sintering provides the possibility of creating improved quality and purity of the treatment of the component surface, as well as improved component density and shows, in particular, improved shrinkage characteristics and improved dimensional stability of obtained components, as well as better thermal conductivity outside the laser treatment area, necessary for the implant.
11 cl, 9 dwg, 3 tbl, 10 ex
