Disc nucleus removal devices and methods

A - Human Necessities – 61 – B

Patent

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Details

A61B 17/56 (2006.01) A61B 17/32 (2006.01)

Patent

CA 2656371

Disclosed herein are devices and methods for removing tissue. In one aspect, a device for removing tissue includes a hollow elongate member having an outer wall and a lumen, a selectively deployable tissue-cutting element extending from the hollow elongate member, and an actuation member extending through the lumen and coupled to the hollow elongate member at a location that is distal to the tissue-cutting element. Movement of the actuation member can cause the tissue-cutting element to move from the insertion configuration where the tissue-cutting element is not deployed to a tissue- cutting configuration where the tissue-cutting element is deployed such that it is radially extended relative to the insertion configuration.

L'invention concerne des dispositifs et des procédés de retrait de tissu. Selon un aspect, un dispositif pour retirer un tissu comprend un élément allongé creux comportant une paroi externe et une lumière, un élément de découpe de tissu déployable de manière sélective s'étendant à partir de l'élément allongé creux et un élément d'actionnement s'étendant au travers de la lumière et couplé à l'élément allongé creux à un emplacement distal par rapport à l'élément de découpe de tissu. Un mouvement de l'élément d'actionnement peut entraîner le déplacement de l'élément de découpe de tissu de la configuration d'insertion, dans laquelle l'élément de découpe de tissu n'est pas déployé, vers une configuration de découpe de tissu, dans laquelle l'élément de découpe de tissu est déployé, de manière à s'étendre radialement par rapport à la configuration d'insertion.

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