Surgical repositioning instrument

US11478284B2 · kind B2 · utility

Assignee

• Premiere Medical GmbH · DE

Inventors

• Farzam Vazifehdan · Taunusstein, DE
• Mathias Pippan · Mainz, DE
• Michael Reith · Bühl, DE
• C. Michael Nilsson · Cleveland Heights, US
• Helmut Schonhoffer · Ulm, DE

Key dates

• Filing date: May 30, 2019
• Grant date: Oct 25, 2022
• Expiry date: Oct 16, 2040

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B17/7037
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A surgical repositioning instrument for lowering and fixing a fixing rod in the tulip head of a bone screw has a coupling sleeve with two distal latching arms. A locking sleeve is longitudinally displaceable on the coupling sleeve between a release and locking position. A rod presser contacts and lowers the fixing rod, which is arranged displaceably within the coupling sleeve. Arranged in a through bore in the handle part is the locking sleeve, coupling sleeve and rod presser. On a grip part, an actuating lever is pivotally mounted to advance the rod presser relative to the coupling sleeve. The actuating lever has a laterally projecting force arm and a load arm which is coupled to the rod presser. The locking sleeve protrudes in its release position and is independently slid into its locking position by the rod presser acting on its proximal end with an axially directed force.