Oscillating surgical cutting tool
AssigneeGlobus Medical, Inc.
InventorsPeter L. Bono, James D. Lark, John S. Scales
Life of this patent
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Abstract
The present invention provides a cutting tool for surgical procedures. More specifically, the present invention provides a rotary surgical cutting tool which overcomes the disadvantages of prior art surgical cutting tools by providing a rotary cutting tool having straight flutes, with each side of the flute being provided with a cutting edge that permits cutting in both directions during limited oscillatory motion of the rotary surgical cutting tool. The areas between the cutting edges are provided with relief to reduce friction while the flute moves the cut material away from the cutting edges.
Claims15
A surgical cutting tool comprising:
- a shank having a longitudinal axis, said shank having a perimeter surface extending around said longitudinal axis, said perimeter surface being symmetrically arranged to allow said perimeter surface to be gripped for rotation about said longitudinal axis, whereby said longitudinal axis is also a rotational axis, said shank also including a first end and a second end;
- said first end of said shank including two or more flutes, each said flute extending parallel to said longitudinal axis and extending inward from an outside diameter toward said longitudinal axis forming a recessed flute channel;
- each flute channel having a pair of opposing sidewalls and a helical radius at a base of each flute, each sidewall forms a face of a cutting edge extending along a length of each flute channel so that each flute channel provides two opposing faces, said cutting edges defining an outermost diameter of said surgical cutting tool, allowing the cutting tool to cut in both directions when rotationally oscillated around said longitudinal axis.
Dependencies are inferred from the claim text.