Minimally invasive bone miller apparatus

US7785328B2 · kind B2 · utility

Assignee

• DePuy Products, Inc. · US

Inventors

• Michael J. Christie · Columbus, US
• David K. DeBoer · Nashville, US
• Michael C. Jones · North Webster, US
• Steven Wayne Smith · Fort Wayne, US
• Brad Parker · Warsaw, US
• Charles W. Jaggers · Mansfield, US
• Derek A. Shrack · Leesburg, US
• James Rogers · Rancho Cucamonga, US

Key dates

• Filing date: Dec 30, 2003
• Grant date: Aug 31, 2010
• Expiry date: May 27, 2027

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61F2/367
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A milling system for creating a cavity in a bone includes a drive shaft, a frame for carrying a cutter and a cutter for cutting the cavity. The drive shaft has a proximal end and a distal end forming a portion of a drive joint for coupling the drive shaft to a cutter. The frame includes a frame shaft and a cutter mount, mounting a cutter at a first angle. The mount includes a bearing bracket extending laterally from the frame shaft to a bearing receiving a portion of a cutter and maintains the received cutter oriented at the first angle during rotation. The cutter has a head forming a portion of drive joint for coupling the cutter to a drive shaft. The cutter is received in the mount at the first angle and the drive shaft forms a second angle with the longitudinal axis less than the first angle.