Vitelene® - Liner de polietileno crosslink com vitamina E
Vitelene® é um polietileno altamente reticulado misturado com vitamina E. A vitamina E proporciona proteção de oxidação a longo prazo pela união de radicais livres através da liberação de átomos.
As pastilhas Vitelene® são fabricadas com tecnologia CNC e esterilizadas com óxido de etileno. Vitelene® não precisa de tratamento térmico e, portanto, possui propriedades mecânicas balanceadas.O produto écaracterizado por resistência ao desgaste e à oxidação. O novo material de articulação Vitelene® é oferecido com o novo sistema Aesculap acetabular Plasmafit®, bem como com Plasmacup® DC.
Melhores resultados a longo prazo
A taxa de desgaste de Vitelene é muito baixa mesmo após o envelhecimento artificial extremo. A concentração de vitamina E ainda é suficiente para eliminar reações oxidativas e, portanto, reduzir o desgaste durante toda a vida útil da artroplastia total do quadril.
A oxidação leva à degradação do polietileno. A vitamina E aumenta a resistência do polietileno contra processos oxidativos e fortalece o material de rolamento durante a vida útil da artroplastia total do quadril.
As propriedades mecânicas da resistência ao impacto, resistência à tração e alongamento do Vitelene® são inalteradas mesmo após 42 dias de envelhecimento artificial. Assim, os testes laboratoriais mostram uma excelente estabilidade a longo prazo do Vitelen® contra o estresse mecânico.
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