SURGICAL SHAVER

Abstract

A surgical shaver has a tubular inner sleeve rotatable about its longitudinal axis and connectable to a rotary drive and a tubular outer sleeve surrounding and rotatably fixed with respect to the inner sleeve. The free distal ends of the inner and outer sleeves are open in the longitudinal direction. The outer sleeve has, near its free end, at least one cutting bar extending and projecting longitudinally and having at least one first cutting edge having a component in the longitudinal direction and starting from the foot region of the cutting bar and having at least one further cutting edge in the free end region having a component directed circumferentially inwards. The inner sleeve has, near its free end, at least one first mating bar extending and projecting longitudinally and extending substantially up to the free end of the at least one cutting bar.

Description

Claims

1. A surgical shaver having a tubular inner sleeve (4) that can be rotated about its longitudinal axis (5) and can be connected to a rotary drive, and having a tubular outer sleeve (3) that surrounds the inner sleeve (4) and is rotationally fixed in place with respect to it, wherein the free distal ends of the inner sleeve (4) and of the outer sleeve (3) are open in the longitudinal direction, and wherein the outer sleeve (3), in the region of its free end, has at least one cutting bar (7) that extends in the longitudinal direction and projects in the longitudinal direction, having at least one cutting edge (8) that has a component in the longitudinal direction and proceeds from the foot region (7a) of the cutting bar (7), and having at least one further cutting edge (9, 12) in the free end region, which has a component directed inward in the circumference direction, wherein the inner sleeve (4), in the region of its free end, has at least one first mating bar (10) that extends in the longitudinal direction and projects in the longitudinal direction, which bar extends essentially all the way to the free end of the at least one cutting bar (7).

2. The shaver according to claim 1, wherein the inner sleeve (4) has at least a second mating bar (11) that extends in the longitudinal direction and projects in the longitudinal direction, which bar does not extend all the way to the free end of the at least one cutting bar (7).

3. The shaver according to claim 1, wherein a second cutting edge (9) is provided on the end-face edge region (7b) of the at least one cutting bar (7), which edge has a component that is directed inward in the circumference direction.

4. The shaver according to claim 1, wherein a third cutting edge (12) is provided adjacent to the first cutting edge (8), in the free end region of the at least one cutting bar (7), which edge has a component that is directed inward in the circumference direction.

5. The shaver according to claim 1, wherein the at least one cutting bar (7) of the outer sleeve (3) has a first cutting edge (8) on both sides, in each instance.

6. The shaver according to claim 4, wherein the at least one cutting bar (7) of the outer sleeve (3) has a third cutting edge (12) on both sides, in each instance.

7. The shaver according to claim 4, wherein the third cutting edge (12) is configured in an indentation (13) or convexity (14) of the cutting bar (7).

8. The shaver according to claim 1, wherein the first cutting edge (8) has at least two cutting sections (8a, 8b), which have a different inclination relative to the longitudinal axis.

9. The shaver according to claim 1, wherein the first cutting edge (8) is configured in arc shape, at least in certain regions.

10. The shaver according to claim 1, wherein the third cutting edge (12) is configured in arc shape, at least in certain regions.