Systems and methods for determining optimal retractor length...

A - Human Necessities – 61 – B

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A61B 17/34 (2006.01) A61B 19/00 (2006.01)

Patent

CA 2574426

A measurement instrument (60, 80) is provided with indicia (68, 92) extending therealong. The measurement instrument indicia (68, 92) is correlated with an indicator of a reference instrument. The measurement instrument (60, 80) is positionable adjacent the entry location of a portal (18) into a patient when the reference instrument is in the portal (18.) The indicator of the reference instrument is correlated to a target location in the patient, and a location of the indicator along the indicia (68, 92) provides an indication of the optimal length for a retractor to be positioned in the portal (18).

La présente invention concerne un instrument de mesure (60, 80) comportant des repères (68, 92) s'étendant le long de celui-ci. Les repères de l'instrument de mesure (68, 92) sont mis en corrélation avec un indicateur d'un instrument de référence. L'instrument de mesure (60, 80) peut être positionné à proximité de l'ouverture d'entrée d'un orifice (18) d'un patient lorsque l'instrument de référence se trouve dans l'orifice (18). L'indicateur de l'instrument de référence est mis en corrélation avec un endroit cible dans le patient, et une position de l'indicateur le long des repères (68, 92) donne une indication de la longueur optimale pour un dispositif de rétraction à placer dans l'orifice (18).

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