A surgical resection guide

A - Human Necessities – 61 – B

Patent

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Details

A61B 17/15 (2006.01)

Patent

CA 2732771

A surgical resection guide comprising: a housing (36); a stylus arm (38) extending through the housing (36) and a linear adjustment mechanism. The linear adjustment mechanism comprises: a shaft (30) at least partially received within a bore extending through the housing (36) such that the shaft (30) can slide along its longitudinal axis relative to the housing (36), the shaft (30) incorporating a shaft tooth (50); and a dial (44) rotatably coupled to the housing (36) and incorporating a helical dial groove (48) defining a longitudinal axis offset from the longitudinal axis of the shaft (30). The shaft tooth (50) engages the dial groove (48) such that rotating the dial (44) relative to the housing (36) causes the shaft tooth (50) to slide along the dial groove (48) causing the shaft (30) to slide within the bore along its longitudinal axis. The housing (36) and the stylus arm (38) can rotate about the shaft (30) without causing the shaft (30) to slide within its bore along its longitudinal axis.

Le guide pour résection chirurgicale ci-décrit comprend : un boîtier (36), un bras de stylet (38) traversant le boîtier (36) et un mécanisme d'ajustement linéaire. Le mécanisme d'ajustement linéaire comprend : un arbre (30) au moins partiellement logé dans un trou traversant le boîtier (36) de façon que l'arbre (30) puisse coulisser sur son axe longitudinal par rapport au boîtier (36), ledit arbre (30) comprenant une dent (50), et un cadran (44) accouplé au boîtier (36) de façon à pouvoir tourner et comprenant une rainure de cadran hélicoïdale (48) définissant un désaxage longitudinal par rapport à l'axe longitudinal de l'arbre (30). La dent de l'arbre (50) s'engrène dans la rainure du cadran (48) de sorte que la rotation du cadran (44) par rapport au boîtier (36) fasse coulisser la dent de l'arbre (50) dans la rainure du cadran (48) pour que l'arbre (30) coulisse dans le trou sur son axe longitudinal. Le boîtier (36) et le bras de stylet (38) peuvent tourner autour de l'arbre (30) sans que l'arbre (30) ne coulisse dans son trou sur son axe longitudinal.

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