Ana Candida Martins Rodrigues,CARLOS ALBERTO FORTULAN,Edgar Dutra Zanotto,MARINA TREVELIN SOUZA,MURILO CAMURI CROVACE,OSCAR PEITL FILHO
申请号：
BR102018072046
公开号：
BR102018072046A2
申请日:
2018.10.25
申请国别(地区):
BR
年份:
2020
代理人:
摘要：
refers to the process of production of bone grafts obtained from additive manufacturing, specifically 3d printing, of a powder composition, developed to enable the adaptation of equipment for the manufacture of f18 bioglass pieces (4), instead of plaster , traditionally used. for this, the process starts with obtaining (e1-e7) the bio-glass powder f18 (4), followed by its mixture (e8) with the other components (c2) of the grafts: maltodextrin, magnesium acetate, carboxymethyl-cellulose , calcium hydroxide, ß-tricalcium phosphate and dibasic potassium phosphate； the mixture (m), after being inserted (e9) in the 3d printer, goes through drying steps (e10, e12 and e13), both inside and outside the equipment, before its firing steps (e15-e18), being the scaffolds obtained (only)； these can still be infiltrated (e19-e24) with a solution of collagen and particles of bio-glass f18 (cb), in order to further increase their mechanical resistance. the scaffolds obtained through the proposed process, infiltrated (si) or not (only) have high resistance and porosity, when compared to the state of the art and can be applied in dentistry, orthopedics and veterinary medicine.refere-se ao processo de produção de enxertos ósseos obtidos a partir da manufatura aditiva, especificamente impressão 3d, de uma composição em pó, desenvolvida para possibilitar a adaptação do equipamento para a fabricação de peças de biovidro f18 (4), ao invés de gesso, tradicionalmente utilizado. para tanto, o processo se inicia com a obtenção (e1-e7) do pó de biovidro f18 (4), seguida de sua mistura (e8) com os demais componentes (c2) dos enxertos: maltodextrina, acetato de magnésio, carboximetil-celulose, hidróxido de cálcio, fosfato de tricálcio-ß e fosfato dibásico de potássio； a mistura (m), após inserida (e9) na impressora 3d, passa por etapas de secagem (e10, e12 e e13), tanto no interior, quanto fora do equipamento, antes de suas etapas de queima (e15-e18), sendo os scaffolds obtidos (so)； esses ainda
