Endoscopic rotary abrader
AssigneeArthrex, Inc.
InventorsPhilip O'Quinn, Randall Hacker, Christine Bickenbach, Gerald Goldsmith, Robert Wyk, Gary Heisler
Life of this patent
Estimating the term…
Abstract
An endoscopic rotary abrader allowing for increased burr size while maintaining the required minimum clearance between the burr and the hood. This is accomplished either by an offset configuration of non-concentric inner and outer tubes, where the inner tube is shifted laterally away from the hood, or by employing an enlarged hood.
Claims20
An apparatus for abrading tissue, comprising:
- an inner assembly rotatably positioned within an outer assembly;
- a hub formed at a proximal end of each of the inner assembly and the outer assembly;
- an abrading element located at a distal end of an inner tube of the inner assembly;
- and
- a hood disposed at a distal end of an outer tube of the outer assembly, wherein the inner tube and the outer tube are non-concentric and the inner tube is laterally offset from the hood.
An apparatus for abrading tissue, comprising:
- an inner assembly rotatably positioned within an outer assembly, wherein the outer assembly has a fixed portion and a demountable portion;
- a hub formed at a proximal end of each of the inner assembly and the outer assembly, wherein the hub at the proximal end of the inner assembly is permanently affixed;
- an abrading element located at a distal end of an inner tube of the inner assembly;
- and
- a hood disposed at a distal end of an outer tube of the outer assembly, wherein the inner tube and the outer tube are not concentric and the inner tube is laterally offset from the hood.
The apparatus of claim 122, wherein debris may be aspirated through the at least one slot and aspiration port into the lumen of the inner tube via suction.
An apparatus for abrading tissue, comprising:
- an inner assembly rotatably positioned within an outer assembly, the outer assembly including an outer tube having a lumen with a radius;
- a hub formed at a proximal end of each of the inner assembly and the outer assembly;
- an abrading element located at a distal end of an inner tube, the abrading element having a radius that is greater than the radius of the lumen of the outer tube;
- and
- a hood disposed at a distal end of an outer tube of the outer assembly, wherein the hood has a radius that is greater than a radius of the outer tube.
Dependencies are inferred from the claim text.