Soft tissue processing

A - Human Necessities – 01 – N

Patent

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A01N 1/02 (2006.01)

Patent

CA 2602100

The present invention is a process for preparing soft tissue such as tendons, ligaments, cartilage, fascia, dermis, human valves and human veins for implant in a human and removes cellular components and forms an decellular matrix having as major components collagens and elastins while sterilizing the tissue. The process comprises the following steps: (1) isolating from a suitable donor a desired soft tissue sample of the biological material; (2) processing and decellularizing the soft tissue including inspection for visual defects, trimming and soaking the tissue in a detergent depending on whether the tissue is fascia or dermis and rinsing same with sterile water; (3) sterilizing the soft tissue in a vacuum and soaking the tissue in an antibiotic composition or peracetic acid depending on whether the soft tissue is fascia or dermis and rinsing same; (4) processing the tissue by cutting the tissue to size and perforating the tissue; and (5) dipping the tissue in 70% ethanol and packaging the tissue.

L'invention concerne un procédé permettant de préparer un tissu mou, tel que des tendons, des ligaments, du cartilage, du fascia, du derme, des valvules et des veines humaines afin de les implanter chez un humain; de retirer des composants cellulaires; et de former une matrice décellularisée dont les composants principaux sont des collagènes et des élastines tout en stérilisant le tissu. Ledit procédé consiste: 1) à isoler un échantillon de tissu mou désiré de matériau biologique d'un donneur approprié; 2) à traiter et à décellulariser le tissu mou notamment à inspecter les défauts visuels, à ébarber et à tremper ce tissu dans un détergent selon qu'il s'agit d'un fascia ou d'un derme et à le rincer à l'aide d'eau stérile; 3) à stériliser le tissu mou sous vide, à le tremper dans une composition antibiotique ou un acide peracétique selon qu'il s'agit d'un fascia ou d'un derme et à le rincer; 4) à traiter le tissu par découpe selon une dimension et à le perforer; et 5) à plonger le tissu dans 70 % d'éthanol et à l'emballer.

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