Dynamization device for orthopedic fixation device

US10603076B2 · kind B2 · utility

Assignee

• Texas Scottish Rite Hospital for Children · US

Inventors

• John D. Ross · Dallas, US
• Mikhail L. Samchukov · Coppell, US
• Alexander M. Cherkashin · Flower Mound, US
• John G. Birch · Coventry, GB

Key dates

• Filing date: Apr 10, 2018
• Grant date: Mar 31, 2020
• Expiry date: Apr 10, 2038

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B2017/606
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A dynamization device may comprise a sleeve, a shaft, a dial, a contact feature, and a biasing member. The shaft may comprise an interior section partially within an inner recess of the sleeve; a flat surface on the interior section of the shaft; and a plurality of external threads on the interior section of the shaft. The dial may comprise a body disposed partially within the inner recess; an annular lip; and internal threads secured to external threads of the shaft. The contact feature has an annular geometry disposed within the inner recess of the sleeve. The biasing member may be disposed around the interior section of the shaft, and disposed between the contact feature and a shoulder within the inner recess of the sleeve. Rotation of the annular lip may provide for compressive movement of the biasing member relative to the sleeve and shaft.