The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 07, 2020
Filed:
Jul. 31, 2017
K2m, Inc., Leesburg, VA (US);
Timmon Ark, Falls Church, VA (US);
Theo Choi, Arlington, VA (US);
Keenan O'Brien, Broadlands, VA (US);
K2M, Inc., Leesburg, VA (US);
Abstract
A polyaxial bone device includes a screw, a screw housing, and a spring. The screw includes a screw head and a shaft that extends from the screw head. The screw housing defines a longitudinal axis and a bore that extends along the longitudinal axis. The screw housing includes a basewall and opposed sidewalls that extend from the basewall. The basewall defines a notch that receives the shaft to increase pivotal movement between the screw and the screw housing relative to the longitudinal axis of the screw housing. The opposed sidewalk define a rod-receiving channel. The screw housing defines a transverse hole in communication with the bore. The spring is supported in the transverse hole and extends therethrough. The spring extends into the bore to frictionally engage the screw head while the screw head is seated in the bore.