How a Magnetic Orthopedic Tool Delivers Force

This patent describes an orthopedic impactor that uses an electromagnet to create a magnetic field, which then moves a striking part to deliver a controlled force to an object, likely bone or an implant.

What it covers

This patent describes an "orthopaedic impactor," a specialized tool for bone surgery. It works by having a "strike assembly" that is designed to hit or push an object. The clever part is how it moves: a "winding" (a coil of wire) receives an electric current, which then generates a "magnetic field." This magnetic field interacts with the strike assembly, causing it to move and "impart a force to the object." For example, a surgeon could use this tool to precisely tap a hip implant into place without needing to manually strike it, ensuring consistent force.

What it doesn't cover

• —Does not cover impactors that rely solely on mechanical force, like a traditional hammer.
• —Does not cover impactors driven by hydraulic or pneumatic (air pressure) systems.
• —Does not cover impactors where the force is generated by means other than a magnetic field interacting with a strike assembly.
• —Does not cover impactors designed for non-orthopedic applications.

The clever bit

The novelty lies in using an electromagnetically-driven strike assembly for an orthopedic impactor. This allows for controlled, repeatable force application without direct manual striking, potentially improving precision and reducing variability in surgical procedures.

Why it matters

This technology could offer more precise and consistent force delivery in orthopedic surgeries compared to manual methods. By using an electromagnet, the force applied can be carefully controlled and repeated, which is crucial for tasks like seating implants. This could potentially reduce surgeon fatigue and improve patient outcomes by ensuring implants are positioned with optimal force.

Real-world examples

• 1.Electromagnetic surgical tools
• 2.Powered orthopedic implant insertion devices
• 3.Precision surgical impactors