Patent ID: 8202229

Claim:
A surgical device having a proximal end and a distal end, said surgical device comprising: an outer sleeve adapted to mount to a cradle top; an inner body housed within the outer sleeve, the inner body rotatable relative to the outer sleeve; a rotatable cutting element, a portion of which is housed within the inner body, said cutting element comprising an inner cannula and an outer cannula, the outer cannula defining a tissue receiving aperture, wherein both the outer and inner cannulae are configured for rotation relative to the outer sleeve; a spool engaged with said outer cannula; a motor engaged with said inner cannula; and a spring positioned between said spool and said motor, wherein said spring is configured for translating said spool distally, thereby translating said outer cannula towards the distal end of the surgical device, and wherein said motor is configured so that translation of the motor relative to the outer sleeve causes corresponding translation of said inner cannula.