Patent ID: 11918262
Assignee: K2M, INC.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 14:
15. A method of securing a fixation device to osseous tissue, comprising:
inserting an elongated body portion, a slotted tail portion, and an unthreaded portion proximal to and adjacent the slotted tail portion of an outer member of a fixation device into a hole in osseous tissue, the slotted tail portion disposed in an undistended configuration, the outer member 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 the outer member defining a head portion extending proximal to helical threads, the head defining an opening therein in fluid communication with the central bore;
applying a rotational force to the outer member to engage the helical threads disposed on an outer surface of the elongated body portion with the osseous tissue, the helical threads tapering distally toward the unthreaded portion; and
applying a force to an inner member of the fixation device that is disposed within the central bore of the outer member, the inner member coupled to an expansion member such that the force applied to the inner member moves the expansion member proximally into the slotted tail portion to move the slotted tail portion to a distended configuration.