Depuy Ireland Unlimited Co.

Jason Naylor

Sarah Bushell

David Beverland

Luke Duncan

Graeme John Dutton

Stephanie Prince

Jamie Atkin

John Bohannon Mason

Oliver Coultrup

Timothy Board

Neil Woollen

Stephen Robinson

Ahmad Jalandari

Elsie Kirby

Caroline Wither

Charlie Weston

A trial neck for hip surgery and a method of attaching a trial neck to a bone canal preparation instrument. The trial neck includes a body portion having a bore for receiving a proximal end of the bone canal preparation instrument. The trial neck also includes an elongate neck part comprising a pair of arms extending from the body portion. The trial neck further includes a clamping mechanism comprising a live spring formed by the body portion and said pair of arms of the elongate neck part and an actuator, for moving the clamping mechanism between a clamping configuration and a non-clamping configuration. In the clamping configuration, the pair of arms of the elongate neck part are pinched together to cause an inner wall of the bore to urge against the bone canal preparation instrument to retain the proximal end of the bone canal preparation instrument within the bore.

Trial component and method

The invention provides a surgical apparatus for performing a controlled resection of the neck of a femur during a hip replacement procedure, the surgical apparatus comprising: a body portion. The body portion comprises a frame that is mountable on a femoral head of the femur to position the body portion with respect to a centre of the femoral head. The body portion also includes a resection guide for indicating a position of a resection plane on the femoral neck, and an arm extending from the frame and including markings for reading off a femoral head offset. The apparatus also includes a connector for mounting the body portion on an intramedullary rod located in an intramedullary canal of the femur, and for slidably receiving the arm. The connector includes a pointer. The femoral head offset is indicated by reading the position of the pointer relative to the markings on the arm.

Femoral neck resection jig

The invention provides a surgical device for performing a controlled resection of the neck of a femur during a hip replacement procedure. The surgical device comprises a body portion having: a frame comprising an aperture dimension for receipt of a femoral head of the femur to position the body portion with respect to a centre of the femoral head; a resection guide for indicating a position of a resection plane on the femoral neck, and an arm extending between the frame and the resection guide. The body portion includes a linear alignment surface for alignment with a femoral shaft axis of the femur while the frame is mounted on the anterior or posterior aspect of the femoral head.

Femoral neck resection guide

A device for use in orthopaedic surgery. The device includes a metallic central member. The device also includes an outer portion comprising a polymer. The outer portion surrounds the metallic central member. The outer portion has a profiled outer surface for removing bone. A surgical instrument kit including a plurality of differently sized devices of the kind described herein. The device can be a broach or rasp. A method of removing bone during orthopaedic surgery.

Device for use in orthopaedic surgery

A device () for use in orthopedic surgery includes a metallic central member (). The device also includes an outer portion () comprising a polymer, which can be molded around the metallic central member. The outer portion thus surrounds the metallic central member. The outer portion has a profiled outer surface (), such as teeth, ribs or ridges for removing bone. Engagement features for resisting relative movement between the metallic central member and the outer portion can comprise ridges, grooves () and apertures () of the metallic central member, filled with polymer. The device can be a broach or rasp. A surgical instrument kit includes a plurality of differently sized devices of the kind described herein.

Growing community of inventors

Leeds, United Kingdom

Jason Naylor