Patent ID: 6663616
Filing Date: 2003-12-16
Classification: A61B,A61F

Abstract:
A surgical set of instruments, comprising a surgical instrument and a guide device for orthogonal treatment of cartilage, bone or body tissue surfaces, wherein the guide device has a first guide element for circular guiding of the surgical instrument and a horizontally rotatable second guide element, and both first and second guide elements are connected via a holder, wherein the first guide element is arranged in such a way that a first radius c of a first guide plane generated in circular guiding of the surgical instrument is larger than a second radius of a second circular guide plane generated with the second guide element, and the surgical instrument passes eccentrically through the second guide plane in a way so as to pass through an invariant point (P) below the second guide element, and a radius a of an area to be treated with the surgical instrument can be adjusted by varying a distance d of the first and second guide elements relative to each other according to equation a:b=c:d, where b is the distance between the invariant point (P) and a center of the area to be treated.