Shape memory alloy staple

Details Shape memory alloy staple Shape memory alloy staple

A - Human Necessities

61

B

A61B 17/70 (2006.01) A61B 17/064 (2006.01)

Patent

CA 2368251

A fusionless method of correcting spinal deformities in growing adolescents is disclosed utilizing a shape memory alloy staple (100). Various embodiments of the shape memory alloy staple (100) include features such as barbs (106, 107, 108, 109) on the inner and outer surfaces (110, 120) of the prongs (102, 103) in the shape memory alloy staple (100) as well as the use of notches (221) on the crossbar (201) or cross plate connecting the prongs (102, 103) to the shape memory alloy staple (100). In some embodiments, the shape memory alloy staple (100) has an aperture (450) defined through the cross plate (401) for receiving a bone screw (720) or other bone anchor which in turn allows the interconnection of a longitudinal member (710).

La présente invention concerne un procédé, sans blocage, de correction de difformités de la colonne vertébrale chez des adolescents en croissance au moyen d'agrafe en alliage à mémoire de forme (100). De nombreuses réalisations de l'agrafe en alliage à mémoire de forme (100) comprennent des caractéristiques telles que des barbes (106, 107, 108, 109) situées sur les surfaces intérieure et extérieure (110, 120) des fourches (102, 103) de cette agrafe (100) aussi bien que l'utilisation d'encoches (221) sur la barre transversale (201) ou sur la plaque transversale reliant les fourches (102, 103) de cette agrafe (100). Dans certaines réalisations, l'agrafe en alliage à mémoire de forme (100) présente une ouverture (450) pratiquée dans la plaque transversale (401) en vue de recevoir une vis à os (720) ou un autre ancrage pour os, permettant l'interconnexion d'un membre longitudinal (710).

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