Surgical instrument with rotary cutting member and quick release coupling arrangement

US7011661B2 · kind B2 · utility

Assignee

• Medtronic, Inc. · US

Inventors

• Danny C. Riedel · Weatherford, US
• Durrell Tidwell · Burleson, US
• Bryan Simmons · North Canton, US
• Larry Dale Estes · Oosterdijk, US
• Allen P. Hilton · Arlington, US
• Rex Shores · The Colony, US
• John Henderson · Flower Mound, US
• James Spitler · Midlothian, US
• Michelle Walker · Lewisville, US

Key dates

• Filing date: Jun 7, 2002
• Grant date: Mar 14, 2006
• Expiry date: Mar 31, 2024

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B23B2231/0232
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A surgical instrument for the dissection of bone and other tissue includes a spindle, a dissection tool and a male member carried by the spindle. The spindle includes a cavity. The dissection tool is releasably received in the cavity. The dissection tool extends along an axis and includes a first end and a second end with the first end having a cutting element and a second end having a generally cylindrical cross-section and a centrally located aperture partially extending along the axis. The male member is carried by the spindle and extends into the aperture of the dissection tool. The cavity may define a drive portion and a tool receiving aperture. One or more alignment projections may extend from the drive portion into the tool receiving aperture.