USPTO Patent Grant for Expandable Interbody Spacer

ChangeBridge: Patent Grants - Prosthetics (A61F)

Published March 24th, 2026

Detected March 24th, 2026

Summary

The USPTO has granted a patent (US12582533B2) for an integrated expandable interbody spacer designed for spinal fusion procedures. The patent was assigned to IMAM ABDULRAHMAN BIN FAISAL UNIVERSITY and lists four inventors. The device allows for controlled adjustment of height during surgery.

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What changed

The United States Patent and Trademark Office (USPTO) has issued patent US12582533B2 for an "Integrated expandable interbody spacer (IEIS)". This patent, granted to IMAM ABDULRAHMAN BIN FAISAL UNIVERSITY, details a medical device designed for spinal fusion procedures. The spacer features an expandable mechanism allowing for in-situ adjustment of height, facilitating better fitting for various intervertebral space requirements.

This patent grant is primarily an intellectual property event and does not impose new regulatory obligations on medical device manufacturers or healthcare providers. However, it signifies a new innovation in the field of spinal implants, which may influence future product development and market competition. Companies operating in the spinal implant sector should be aware of this new patent for potential licensing or infringement considerations.

Source document (simplified)

← USPTO Patent Grants

Integrated expandable interbody spacer (IEIS)

Grant US12582533B2 Kind: B2 Mar 24, 2026

Assignee

IMAM ABDULRAHMAN BIN FAISAL UNIVERSITY

Inventors

Murad Althobaiti, Nasir Ghazi Hariri, Sajid Ali, Sultan Alsalmi

Abstract

An expandable interbody spacer including a first endplate and a second endplate, each with an outwardly facing surface, an inner facing surface, and two opposing isosceles-trapezoidal-shaped sidewalls. A motion assembly is located between the opposing sidewalls of both endplates, including a first motion guider with a smooth central cylindrical aperture, a second motion guider with a threaded central cylindrical aperture, and a screw with a screwhead and a partially threaded shank. The shank of the screw is positioned through the aperture in the first motion guider and into the aperture in the second motion guider. Clockwise rotation of the screwhead increases the height between the endplates by drawing the motion guiders together, while counterclockwise rotation decreases the height by moving them apart. The expandable interbody spacer permits controlled, in situ adjustment of height of the expandable interbody spacer to fit various intervertebral space requirements during spinal fusion procedures.