Transiliac approach to entering a patient's intervertebral...

A - Human Necessities – 61 – B

Patent

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A61B 17/56 (2006.01)

Patent

CA 2345918

The present invention provides methods for percutaneously accessing the patient's intervertebral space (18) by creating an access portal (30) through the patient's ilium (16) and into the patient's intervertebral space (18). The access portal (30) created is preferably at a posterolateral angle, (preferably in the range of 40 to 90 degrees to an anterior/posterior axis through the patient), thereby being at the optimal angle of approach to the intervertebral space (18) for these lower L5/S1 vertebrae. Methods are also provided for advancing surgical instruments through the passage, and into the intervertebral space (18).

L'invention concerne des procédés permettant d'accéder par voie percutanée à l'espace intervertébral (18) d'un sujet en créant un orifice d'accès (30) traversant l'ilion (16) et pénétrant dans l'espace intervertébral (18). Cet orifice d'accès (30) se situe de préférence à un angle postéro-latéral, (de préférence dans une fourchette de 40 à 90 degrés par rapport à un axe antérieur-postérieur traversant le sujet), ce qui constitue l'angle d'approche optimal de l'espace intervertébral (18) pour les vertèbres inférieures L5/S1. L'invention concerne également des procédés permettant d'introduire, par le passage créé, des instruments chirurgicaux dans l'espace intervertébral (18).

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