Multiple bladed surgical cutting device removably connected...

A - Human Necessities – 61 – B

Patent

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Details

A61B 17/00 (2006.01) A61B 17/16 (2006.01) A61B 17/32 (2006.01) A61B 17/56 (2006.01) A61B 17/22 (2006.01) A61B 19/00 (2006.01)

Patent

CA 2288768

This invention is a cutting device (10) for the cutting, and reduction of matter from a surgical site having a cutting head (16), having an entry tip (30), a cutting blade (22) positioned on opposed leading edges of a window (20) formed through the interior of the cutting head (16). The window (20) includes angled walls extending from each cutting blade (22) along the circumference of the window (20). The cutting head (16) is attached to a shaft (14) for mounting the cutting drive (10) to a rotary surgical drill. The cutting head (16) can also have a blade on the outer perimeter of the head. The cutting head (16) can also include three or more cutting blades (22) positioned on opposed leading edges of a window (20) formed through the interior of the cutting head (16). The matter is removed, and further reduced as the cutting head (16) is rotated at the surgical site. The geometry of the cutting head (16), and entry tip (20) can be varied for particular surgical procedures. The cutting device can also include a cannula or drill guard (152).

L'invention concerne un dispositif d'incision (10) destiné à inciser et à réduire de la matière d'un site chirurgical. Ce dispositif est pourvu d'une tête d'incision (16) présentant un embout d'introduction (30), et une lame coupante (22) sur les bords avants opposés d'une fenêtre (20) ménagée à l'intérieur de ladite tête d'incision (16). Cette fenêtre (20) comprend des parois angulaires qui s'étendent depuis chaque lame coupante (22), le long de la circonférence de ladite fenêtre (20). La tête d'incision (16) est fixée à une tige (14), conçue pour assembler le dispositif d'incision (10) à un foret rotatif chirurgical. Cette tête d'incision (16) peut également présenter une lame sur sa périphérie extérieure; elle peut en outre comprendre au moins trois lames coupantes (22), placées sur les bords avants opposés d'une fenêtre (20) ménagée à l'intérieur de ladite tête d'incision (16). On retire de la matière avant de la réduire en faisant pivoter cette tête d'incision (16) sur le site chirurgical. La forme de cette tête d'incision (16), ainsi que celle de l'embout d'introduction (20), peut varier en fonction des différentes procédures chirurgicales. Ce dispositif d'incision peut également comprendre une canule ou une protection pour foret (152).

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