Orthopaedic trauma hip screw assembly and associated method

US8177786B2 · kind B2 · utility

Assignee

• DePuy Products, Inc. · US

Inventors

• Matthew V. Leyden · Windom, US
• Matthew S. Wallace · Huntertown, US
• Daniel S. Horwitz · Bloomsburg, US
• George J. Haidukewych · Orlando, US
• David A. Hawkes · Winona Lake, US
• Marc E. Ruhling · Goshen, US

Key dates

• Filing date: Mar 30, 2007
• Grant date: May 15, 2012
• Expiry date: May 13, 2029

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B17/746
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A hip screw assembly for fixation of a fractured femur is provided. The hip screw assembly includes a screw for engagement with the femur. The hip screw assembly also includes a barrel defining a cavity in the barrel. The barrel is fixedly secured to the plate. The screw including a portion thereof fitted in the cavity of the barrel. The hip screw assembly also includes a stop positionable in the barrel. The stop provides a limit on the movement of said screw in said barrel. The screw and the barrel have a first arrangement between each other in which the screw slides in the cavity of said barrel a first selectable predetermined distance and a second arrangement in which the screw slides a second selectable predetermined distance. The second distance is greater than the first distance.