Stryker Corporation
Rongeur with cutting implement that is selectively driven by a motor so the cutting implement performs either power assisted or manual cutting of tissue

Abstract:

A rongeur cutting system and method of operating said system. The rongeur cutting system may comprise a cutting unit that includes an outer tube and a cutting implement capable of both oscillation and longitudinal movement within the outer tube. The rongeur cutting system may also comprise a handpiece including a power source and spindle for actuating the cutting implement. The spindle is designed to allow the cutting implement to oscillate while simultaneously moving longitudinally relative to the spindle. The handpiece may further comprises an advancement and retraction assembly that selectively displaces the cutting implement so the distal end of the cutting implement can be advanced towards and retracted away from the distal end of the outer tube. The method of operating the rongeur cutting system may comprise manually operating the system to move the cutting implement longitudinally while periodically actuating the power source to simultaneously oscillate the cutting implement.