Spheroidal Surgical Rasp
AssigneeStryker European Operations Limited
InventorDenis O'Sullivan
Life of this patent
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Abstract
A rasp for use with a powered surgical handpiece comprises opposed proximal and distal ends and a rasp region. The proximal end includes a mount portion. The mount portion defines a pivot axis. The rasp region extends between the mount portion and the distal end and includes the distal end. The rasp region has opposed first and second surfaces connecting at a common edge. The first surface is convex and the second surface is concave. The rasp region has a plurality of cutting projections disposed on at least one of the first surface and the second surface. The rasp region has a center axis substantially parallel to the pivot axis.
Claims20
A rasp for use with a powered surgical handpiece comprising:
- opposed proximal and distal ends;
- the proximal end including a mount portion with the mount portion defining a pivot axis;
- and
- a rasp region:
- extending between the mount portion and the distal end and including the distal end,
- having opposed first and second surfaces connecting at a common edge with the first surface being convex and the second surface being concave,
- having a plurality of cutting projections disposed on at least one of the first surface and the second surface, and
- having a center axis substantially parallel to the pivot axis.
A surgical tissue cutting system comprising:
- a powered surgical handpiece comprising:
- a body,
- a motor disposed inside the body, and
- a mount defining a first pivot axis and drivingly connected to the motor;
- and
- a rasp selectively removably connected to the mount of the powered surgical handpiece, the rasp comprising:
- opposed proximal and distal ends,
- the proximal end including a mount portion with the mount portion defining a second pivot axis substantially coincident with the first pivot axis when the rasp is connected to the mount, and
- a rasp region:
- extending between the mount and the distal end and including the distal end,
- having opposed first and second surfaces connecting at a common edge with the first surface being convex and the second surface being concave,
- having a plurality of cutting projections disposed on at least one of the first surface and the second surface, and
- having a center axis substantially parallel to the second pivot axis.
Dependencies are inferred from the claim text.