Surgical needle configuration with five-sided cross-section

Details Surgical needle configuration with five-sided cross-section Surgical needle configuration with five-sided cross-section

A - Human Necessities

61

B

128/113

A61B 17/06 (2006.01) A61B 17/32 (2006.01)

Patent

CA 2025250

A needle having three fluted edges, all of the same angular size. The needle presents a five sided cross-section at a tapered end. This results in easier tissue penetration, reduced cross-sectional needle area, better wound opening area performance, and minimized tissue distortion. In an alternate embodiment, the flat surface from which the taper is formed is on the inside of the needle so that the outer fluted edges are formed outside that configuration.

Cette invention concerne une aiguille chirurgicale à trois arêtes cannelées, toutes formant un angle de même valeur. Elle présente du côté effilé une section transversale pentagonale. Cette forme favorise une meilleure pénétration des tissus. L'aire de la section transversale de l'aiguille étant réduite, celle de la perforation l'est également, et la déformation des tissus est réduite au minimum. Dans une autre variante, la surface plane d'où part l'effilement se trouve du côté intérieur de l'aiguille de sorte que les arêtes cannelées se trouvent du côté extérieur de l'aiguille.

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