Loading patent…
AssigneeCo.Don AG
InventorsKlaus Roth, Hans-Jörg Saile, Mare Oliver Schurr, Gerhard Buess, Olivera Josimovic-Alasevic, Karl-Gerd Fritsch
Estimating the term…
The invention relates to a surgical set of instruments used to treat surfaces of cartilage, bone or body tissue, which set comprises a surgical instrument 1 and a guide device 2 to guide said instrument and/or a tissue applicator 3 for inserting tissue on a defect to be covered. In the meaning of the present invention, the surgical instrument, which can be moved in a circular, elliptical or another way with the aid of the guide device 2 according to the invention, is understood to be a shaver, a scalpel, a drill, a curette, a syringe, or a probe. Depending on the surgical problem, however, other instruments for cutting, milling, punching, sewing, or setting bores in cartilage, bone or body tissue, or injecting operating aids such as glues may also be moved in a specific surface profile using the guide device of the invention.
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.
A surgical set of instruments, comprising a surgical instrument and a guide device for the treatment of cartilage, bone or body tissue surfaces in the same plane as the areas to be treated, wherein the set comprises a surgical instrument having a bent head and a guide pin on its shank or grip, and the guide device has a circular guide element in the form of a rotatable disk having eccentric, helically arranged bores for optional insertion of a guide pin present on the shank or grip of the surgical instrument, wherein the distance from the respective bore, into which the guide pin is inserted, to the center of the rotatable disk, is referred to as radius c, and said rotatable disk is in the same plane as the area to be treated and is tightly secured to a holder, a guide sleeve for the surgical instrument being affixed to the bottom of the holder via a vertical joint element, the center of said guide sleeve simultaneously representing an invariant point (P), and the size of the area to be treated being determined by selecting the radius c on the rotatable disk and an adjustable distance d between the center of rotatable disk and the center of guide sleeve, where the distance b between the invariant point and the center of the area to be treated is equal to the distance d.
Dependencies are inferred from the claim text.