EXPANDABLE TRIAL FEMORAL NECK AND ASSOCIATED METHOD OF USE

Organization Name

GLOBUS MEDICAL, INC.

Inventor(s)

John Loiacono of Collegeville PA (US)

David Stumpo of Trappe PA (US)

Carly Mcgonagle of Philadelphia PA (US)

Joseph Capozzoli of Mt. Laurel NJ (US)

Yevgeniy Vinshtok of Downingtown PA (US)

EXPANDABLE TRIAL FEMORAL NECK AND ASSOCIATED METHOD OF USE

This abstract first appeared for US patent application 18454472 titled 'EXPANDABLE TRIAL FEMORAL NECK AND ASSOCIATED METHOD OF USE

Original Abstract Submitted

A trial femoral assembly for hip arthroplasty and associated method of use is disclosed that includes a head, a neck connected to the head, and a stem or broach connected to the neck, wherein the neck is expandible and collapsible. Also, the stem or broach can move laterally in relation to the longitudinal axis of the neck. A first embodiment includes a notched rod located within a housing and within a circular lower neck portion having a tilted spiral cam that interacts with the notched rod to provide movement involving extension or retraction of the neck. A second embodiment includes a bevel gear located on an outer surface of the head that engages a screw located inside the head to move the neck to provide extension or retraction. A third embodiment includes at least three nested, telescoping threaded elements with oppositely handed threads that extend or retract the neck.