COMBINED FLIP CUTTER AND DRILL

摘要

A flip cutter and drill instrument and method of antegrade drilling and retrograde cutting using such an instrument. The flip cutter and drill instrument is provided with a drill which has a multi-blade configuration and which engages an inner tube or inner member of the instrument to articulate between at least a first “straight” position (for example, about parallel to the longitudinal axis of the instrument) when the instrument is in the drilling mode, and at least a second “flip” position (for example, a non-parallel position relative to the longitudinal axis of the instrument) when the instrument is in the cutting mode.

主权项

1. A surgical instrument comprising:
a cannulated shaft or outer tube having a distal end, a proximal end and a longitudinal axis, the cannulated shaft or outer tube housing an inner member; a cutting member comprising a drill having a conical shape and provided with a plurality of cutting edges, the cutting member being disposed at the distal-most end of the cannulated shaft or outer tube and securely engaged to the inner member, the cutting member being configured to antegrade drill when disposed in a first position generally aligned with the longitudinal axis of the cannulated shaft or outer tube, the cutting member being configured to drill in a retrograde maaner when disposed in a second position which is not aligned with the longitudinal axis of the cannulated shaft or outer tube, the cutting member being capable of movement from the first position to the second position; and a locking tube provided over the cannulated shaft or outer tube at the proximal end, the locking tube being tightenable to securely lock the cutting member in position.