Surgical saw and methods therefor

A - Human Necessities – 61 – B

Patent

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Details

A61B 17/14 (2006.01) B23D 53/00 (2006.01)

Patent

CA 2306504

This invention is a surgical bone saw (10) with flexible, endless cutting blades, and a method for resetting bone. The saw assembly includes a pair of guide arms (22), a pair of flexible, endless cutting bands (24) disposed around the guide arms, a drive mechanism (26) for driving the cutting bands in defined paths, and a housing (27) mounting the guide arms and the drive mechanism. According to a preferred embodiment, the cutting bands (24) are each formed unitary, and integrally as a single piece. A method of resetting bone includes the steps of driving the cutting bands in the defined paths in opposite directions relative to the guide arms, and inserting the distal ends of the guide arms in the bone to resect the bone along the plane of the guide arms.

Scie chirurgicale (10) à os qui comporte des lames de coupe souples sans fin et procédé de résection d'os. L'ensemble scie comporte une paire de bras de guidage (22), une paire de bandes de coupe (24) souples sans fin placées autour des bras de guidage, un mécanisme d'entraînement (26) destiné à entraîner les bandes de coupe sur des trajectoires définies, et un boîtier (27) abritant le mécanisme de montage des bras de guidage et d'entraînement. Selon un mode de réalisation préféré, les bandes de coupe (24) sont formées chacune de manière unitaire et d'un seul tenant. Un procédé de résection d'os consiste à entraîner les bandes de coupe sur les trajectoires définies dans un sens opposé par rapport aux bras de guidage et à introduire les extrémités distales des bras de guidage dans l'os de manière à couper l'os dans le plan des bras de guidage.

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