Patent ID: 9101367
Filing Date: 2015-08-11
Classification: A61B

Abstract:
1. A medical instrument for dissecting tissue, comprising a shaft having a longitudinal axis and a distal end, a first tool and a second tool both arranged at said distal end of said shaft, said first tool being arranged distally from said second tool, said first and second tools cooperating in the manner of a punch by an axial relative movement with respect to one another, at least one of said first and second tools comprising a cutting element arranged in such a way that said cutting element forms a punch area with the other of said first and second tools, said punch area defining a plane which forms a first angle with said longitudinal axis of said shaft which is different than 0° and which is different than 90° in the area of said distal end of said shaft, said distally arranged first tool tapering in diameter convexly in distal direction, external contour lines of said distally arranged first tool intersecting, when viewed in a section through a longitudinal central plane, at a second angle smaller than 160°; and wherein said second tool which is proximally arranged with respect to the distally arranged first tool has a smaller external diameter than a proximal end of said distally arranged first tool such that said proximally arranged second tool engages inside of the diameter of said distally arranged first tool during punching.