US 11,918,262 B2
Fixation device and method of using the same
Thomas J. Errico, New York, NY (US); Peter Newton, La Jolla, CA (US); Harry Shufflebarger, Jupiter, FL (US); and Brittany Harwell Lang, Warrenton, VA (US)
Assigned to K2M, Inc., Leesburg, VA (US)
Appl. No. 16/499,470
Filed by K2M, Inc., Leesburg, VA (US)
PCT Filed Mar. 30, 2018, PCT No. PCT/US2018/025382
§ 371(c)(1), (2) Date Sep. 30, 2019,
PCT Pub. No. WO2018/183833, PCT Pub. Date Oct. 4, 2018.
Claims priority of provisional application 62/478,701, filed on Mar. 30, 2017.
Prior Publication US 2020/0253655 A1, Aug. 13, 2020
Int. Cl. A61B 17/86 (2006.01); A61B 17/56 (2006.01)
CPC A61B 17/8635 (2013.01) [A61B 17/8685 (2013.01); A61B 2017/564 (2013.01); A61B 2017/8655 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A fixation device comprising:
an outer member including an elongated body portion, a slotted tail portion, an unthreaded portion proximal to and adjacent the slotted tail portion, the outer member including helical threads tapering toward the unthreaded portion and defining a central bore therethrough extending along a central longitudinal axis, the slotted tail portion including concentric arcs extending perpendicular to the central longitudinal axis, and a head portion extending proximal to the helical threads and defining an opening therein in fluid communication with the central bore;
an inner member disposed within the central bore of the outer member; and
an expansion member coupled to the inner member, wherein proximal movement of the inner member relative to the outer member moves the expansion member into the slotted tail portion of the outer member such that the slotted tail portion moves from an undistended configuration to a distended configuration.