Surgical cutting instrument

Details Surgical cutting instrument Surgical cutting instrument

A - Human Necessities

61

B

A61B 17/32 (2006.01)

Patent

CA 2699375

A surgical cutting instrument for cutting tissue includes an outer cannula with a cutting opening and a cutting member within the cannula. The cutting member is connected to a source of reciprocation, and as the cutting member reciprocates the cutting member head is guided by a sloped member within the cannula to essentially a zero clearance position relative to a cutting edge of the cutting opening of the cannula. The instrument cleanly severs tissue extending through the cutting opening into the outer cannula.

L'invention concerne un instrument chirurgical coupant pour couper un tissu, qui comprend une canule externe pourvue d'une ouverture coupante et un élément coupant situé à l'intérieur de la canule. L'élément coupant est relié à une source de mouvement alternatif, et lorsque l'élément coupant va et vient, la tête de l'élément coupant est guidée par un élément incliné situé à l'intérieur de la canule jusqu'à atteindre une position pratiquement sans jeu par rapport au bord coupant de l'ouverture coupante de la canule. L'instrument sectionne proprement le tissu qui s'étend à travers l'ouverture coupante dans la canule externe.

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