Self-orienting drill sleeve

US11464526B2 · kind B2 · utility

Assignee

• DePuy Synthes Products, Inc. · US

Inventors

• This Aebi · Grenchen, CH
• Mirko Rocci · Solothurn, CH
• Steffan Daniel · Zuchwil, CH
• Joel Oberli · Niederdorf, CH
• Johanna F. Menze · Zürich, CH
• Andreas Baeriswyl · Bettlach, CH
• Said Ghammar · Zuchwil, CH

Key dates

• Filing date: Jan 15, 2021
• Grant date: Oct 11, 2022
• Expiry date: Feb 11, 2041

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B2017/00367
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A drill sleeve, including: an outer sleeve with an internal collet at a distal end of the outer sleeve and an inner opening; a handle connected to the outer sleeve; an inner sleeve with an inner opening configured to receive and guide a drill bit, wherein the inner sleeve is configured to slide inside the inner opening of the outer sleeve; a trigger connected to the inner sleeve; and a biasing member configured to apply a biasing force between the handle and the trigger wherein the biasing force drives the inner sleeve into the outer sleeve, wherein when a distal end of the inner sleeve engages the internal collet, the internal collet is configured to engage a screw hole in a bone plate, align the drill sleeve with a nominal axis of the screw hole, and secure the drill sleeve to the screw hole.