A - Human Necessities – 61 – F
Patent
A - Human Necessities
61
F
A61F 2/30 (2006.01) A61B 19/00 (2006.01) A61F 2/46 (2006.01) A61L 27/00 (2006.01) A61L 27/16 (2006.01) A61F 2/00 (2006.01) A61F 2/28 (2006.01) A61F 2/32 (2006.01) A61F 2/34 (2006.01) A61F 2/36 (2006.01)
Patent
CA 2173992
A method of fitting orthopaedic prostheses is disclosed in which a semi-permeable microporous membrane is fitted over an implanted prosthesis so as to cover the junction between the prosthesis and the bone. In this way, particles generated by mechanical wear of the prosthesis are excluded. Such particles are believed to inhibit bone regeneration in the region of the prosthesis. In addition, by preventing the ingress of fibrous connective tissue cells, a secondary seal of new bone will form between the membrane and the original bone.
Procédé de mise en place de prothèses orthopédiques consistant à placer une membrane microporeuse semi-perméable (6, 9) au-dessus d'une prothèse implantée (3, 2) de manière à recouvrir la jonction (8, 10) entre la prothèse et l'os (11). On élimine de cette manière les particules produites par l'usure mécanique de la prothèse (3, 2). On pense que ces particules inhibent la régénération osseuse dans la région de la prothèse (3, 2). De plus, le fait d'empêcher l'entrée des cellules fibreuses du tissu conjonctif permet à un deuxième joint de nouvel os de se former entre la membrane et l'os d'origine.
Barrett David
Blunn Gordon
Muirhead-Allwood William
Walker Peter Stanley
Carton John K.
University College London
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