Surgical instrument for determining the size of intervertebral implant

US8585710B2 · kind B2 · utility

Assignee

• Aesculap AG · DE

Inventors

• Kay Fischer · Tuttlingen, DE
• Susanne Schneid · Tuttlingen, DE
• Robert J. Schultz · Farmington, US

Key dates

• Filing date: Mar 8, 2007
• Grant date: Nov 19, 2013
• Expiry date: Feb 9, 2031

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61F2002/4668
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A surgical instrument is configured for determining the size and/or height of an intervertebral implant insertable into an intervertebral space between two adjacent vertebral bodies of two human or animal vertebrae. The implant includes a first abutment element for abutment against an articular surface of one of the two adjacent vertebral bodies and a second abutment element supported directly or indirectly on the first abutment element for abutment against an articular surface of the other of the two adjacent vertebral bodies. The instrument includes a holding part defining a longitudinal direction and at least one test implant, which includes a first and a second test-implant abutment element each having at least one abutment surface for abutment against one of the articular surfaces. A distal end of the holding part includes at least one abutment-element holding element for detachable connection to the at least one test implant 149.