THREE-DIMENSIONAL STRUCTURES BASED ON HYDROXYAPATITE AND POLYURETHANE DIOL OBTAINED THROUGH 3D PRINTING TECHNOLOGY

• Main Authors: Motoc, Adrian Mihail, Voinea, Liliana Mary, Piticescu, Roxana Mioara, Gradinaru (Istrate), Sînziana Luminita, Popescu, Laura Madalina, Topor, Alexandru, Ulieru, Dumitru
• Format: Patent
• Language: English; French; German
• Published: 26.08.2020
• Subjects: ADDITIVE MANUFACTURING TECHNOLOGY; ADDITIVE MANUFACTURING, i.e. MANUFACTURING OFTHREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVEAGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING,STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, ORSURGICAL ARTICLES; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; HUMAN NECESSITIES; HYGIENE; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICALARTICLES; MEDICAL OR VETERINARY SCIENCE; METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS INGENERAL; PERFORMING OPERATIONS; PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES; TRANSPORTING

The invention relates to 3D structures made by the 3D printing method, with the 3D BioScaffolder equipment at room temperature, having the shape of a cube with 2 cm side. The 3D structures of the present invention are obtained from: hybrid powder based on hydroxyapatite and polyurethane diol synthesized by the hydrothermal process at a pressure p = 1000 bar and temperature t = 100 °C, in a weight ratio of 4: 1, in the form of spherical particles having a diameter of 0.5-8 µm; Mowiflex solution 20% and Baymedix FD 103 solution 57%.