The Elaris® Technology
The Elaris® Technology uses ultrasonic energy to liquefy a solid pin made of resorbable polymer (PLDLLA) inside a fenestrated pedicle screw.
The ultrasonic energy is generated in a fully automated, motorized Piezo-Handpiece and is transferred to the polymer pin via a long Sonotrode.
The Motor in the Handpiece is then pushing the sonotrode forward into the cannulation of the pedicle screw extruding the liquified polymer through the distal fenestrations.
The liquified polymer infiltrates the adjacent cancellous bone and immediately forms a solid bond between implant and bone.
The entire process takes only a few seconds and is fully automatized. It can be repeated up to three times per screw, creating a strong anchorage of the screw in the cancellous bone.
In case a polymer enhanced screw needs to be removed, the interface of the screw and the polymer can be melted using the same Motorized Piezo-Handpiece and Sonotrode, and the screw can be easily turned our without damaging the bone.