FATIGUE RESISTANT POROUS STRUCTURE

At least a portion of an object such as a medical implant is fabricated by a process. In the process, a porous structure, a solid structure, and an interface region directly attached to each of the porous structure and the solid structure are produced by an additive manufacturing machine using a sto...

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Bibliographische Detailangaben
Hauptverfasser:	PATEL, Soniya, DELUISE, Michael A, HEARD, David William, HAGGERTY, Zz Mae
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	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 BANDAGES, DRESSINGS OR ABSORBENT PADS DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF,TUBULAR STRUCTURES OF THE BODY, E.G. STENTS FILTERS IMPLANTABLE INTO BLOOD VESSELS FIRST-AID KITS FOMENTATION HUMAN NECESSITIES HYGIENE MEDICAL OR VETERINARY SCIENCE ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES PERFORMING OPERATIONS PROSTHESES TRANSPORTING TREATMENT OR PROTECTION OF EYES OR EARS
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Beschreibung
Zusammenfassung:	At least a portion of an object such as a medical implant is fabricated by a process. In the process, a porous structure, a solid structure, and an interface region directly attached to each of the porous structure and the solid structure are produced by an additive manufacturing machine using a stored output file configured for providing instructions to the additive manufacturing machine for fabricating the porous structure, the solid structure, and the interface region. The stored output file is prepared by preparing a computer-generated component file including a porous CAD volume (114) and a solid CAD volume. Digitized radii (119, 219, 319) are added to digitized struts defining digitized pores in an interface volume of porous CAD volume to mitigate stress concentrations that would otherwise result in sharp corners or notches in the fabricated object.