Patent ID: 8936604
Filing Date: 2015-01-20
Classification: A61B,A61F

Abstract:
1. A pneumatic surgical instrument, comprising: a striker; a removable probe mountable on a distal end of the instrument; a pressure regulator; a self-contained gas cartridge operably connected to the pressure regulator; a trigger mechanism comprising a trigger, the trigger mechanism being operably connected to the pressure regulator and to the striker, and a monolithic universal orthopedic implant impactor configured to receive the distal end of the probe therein or thereon, the universal orthopedic implant impactor comprising first distal convex surfaces having first compound radii configured to internally engage corresponding concave surfaces of a plurality of different predetermined orthopedic implants having varying shapes and/or radii with respect to one another; wherein the instrument is configured to deliver at least one shock wave to the probe when the trigger is actuated by a user and a predetermined volume of gas stored at a predetermined range of pressures in the instrument is released thereby to cause the striker to move towards a distal end of the instrument and deliver the shock wave to the proximal end of the probe and the universal orthopedic implant impactor, the shockwave delivered by the probe having a rise time ranging between about 2 microseconds and about 20 microseconds, the shockwave being substantially repeatable by the instrument when the trigger is actuated again by the user, the instrument being configured to implant, extract or reorient any one of the plurality of different orthopedic implants; and wherein the universal implant impactor further comprises second distal concave surfaces interposed between the first convex surfaces having second compound radii configured to externally engage corresponding convex surfaces of the plurality of different predetermined orthopedic implants.