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.
Claims20
An oscillating surgical cutting tool comprising:
- a shank defining a longitudinal axis, a distal end and a proximal end, the shank having a perimeter surface extending around the longitudinal axis, the longitudinal axis also defining a rotational axis about which the shank is adapted to oscillate;
- a cutter disposed at the distal end and including:
- a plurality of flutes circumferentially arranged around the longitudinal axis to define an outermost diameter, each flute extending longitudinally and radially inwardly from the outermost diameter toward the longitudinal axis to define a pair of cutting edges and a recessed flute channel therebetween such that the pair of cutting edges allow the cutter to cut in both directions when rotationally oscillated about the longitudinal axis.
An oscillating surgical cutting tool comprising:
- a shank defining a longitudinal axis, a distal end and a proximal end to be gripped for rotation about the longitudinal axis, the shank having a perimeter surface extending around the longitudinal axis, the longitudinal axis also defining a rotational axis about which the shank is adapted to oscillate;
- a cutter disposed at the distal end and including:
- a plurality of flutes circumferentially arranged around the longitudinal axis to define an outermost diameter, each flute extending longitudinally and radially inwardly from the outermost diameter toward the longitudinal axis to define a pair of cutting edges and a recessed flute channel therebetween such that the pair of cutting edges allow the cutter to cut in both directions when rotationally oscillated about the longitudinal axis, wherein each of the flute channels is elongate in a longitudinal direction and is parallel to the longitudinal axis.
Dependencies are inferred from the claim text.