Hollow sleeve augment device and tool

US11918472B2 · kind B2 · utility

Assignee

• WALDEMAR LINK GmbH & Co. KG · DE

Inventors

• Eckhard Bauer · Kiel, DE
• Helmut D. Link · Hamburg, DE

Key dates

• Filing date: Jun 30, 2022
• Grant date: Mar 5, 2024
• Expiry date: Aug 25, 2042

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61F2002/4628
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

An augment device includes a hollow sleeve surrounding a channel extending through the hollow sleeve from a top to a bottom of the hollow sleeve, the hollow sleeve comprising a wall having an inner face and an outer face. The hollow sleeve includes at least one bending joint, the bending joint being configured for compressing the channel. Thereby the hollow sleeve may be compressed under an external force, leading to a decreased circumference and width of the hollow sleeve. This leads to a gap between the perimeter of the augment device and surrounding bone material, breaking any connections, By virtue of this, a much facilitated removal of the augment device can be achieved. Further, an extraction tool includes grippers for engaging and compressing the augment device, and further instruments, particularly a jig, for achieving an effective removal.