US 11,678,912 B2
Minimally invasive compressor / distractor
Keith Klausman, Carlsbad, CA (US); Thomas Purcell, Carlsbad, CA (US); and Joel Gambrell, Carlsbad, CA (US)
Assigned to Astura Medical Inc, Irving, TX (US)
Filed by Astura Medical Inc., Carlsbad, CA (US)
Filed on Sep. 24, 2019, as Appl. No. 16/581,724.
Prior Publication US 2021/0085370 A1, Mar. 25, 2021
Int. Cl. A61B 17/70 (2006.01); A61B 17/02 (2006.01)
CPC A61B 17/708 (2013.01) [A61B 17/025 (2013.01); A61B 2017/0256 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A compressor/distractor instrument comprising:
a compressor/distractor device having left and right handles pivotably hinged together by a removable locking pin, the distal ends of the left and right handles include left and right tube engagement arms having an opening;
pedicle screw extenders having a tubular body with a central opening or lumen extending through the body;
left and right compressor/distractor support tubes configured to fit within the central opening or lumen of the pedicle screw extenders to provide bending support during compression or distraction, each support tube having:
a tubular body having a central lumen configured to fit within the openings on the tube engagement arms;
first and second screw driving shafts positioned within the central lumen of the left and right compressor/distractor support tubes having:
a proximal end within the support tube configured to engage a screw driver or other tool; and
a distal end configured to engage and rotate a set screw to reduce a fixation rod;
a threaded portion configured to engage threads on the pedicle screw extender to hold the support tubes in place during compression or distractor manipulation.