Innovative Low-Profile Deployable and Retrievable Epidural Lead Array System for Pain Management

Researchers at the University of Pittsburgh have developed a novel low-profile, deployable, and retrievable epidural lead array system designed to effectively manage acute and chronic pain. This innovative system addresses the limitations of existing spinal cord stimulator (SCS) devices by providing a minimally invasive solution that prevents device dislocation and migration while offering a larger surface area for pain management.

Description

The new SCS device features a laser-trimmed mesh nitinol structure as the deployable backbone, an ultrathin ePTFE membrane isolating the conductive backbone from the electrodes, and platinum strips for the electrodes. Stainless-steel wires insulated with an ultrathin layer of Polytetrafluoroethylene connect an external battery pack to the electrodes for efficient electrical potential delivery. The nitinol mesh backbone allows the device to collapse into a size smaller than a 14-gauge needle, facilitating minimally invasive insertion and removal.

Applications

- Acute pain management
- Chronic pain management
- Minimally invasive surgical procedures
- Spinal cord stimulation

Advantages

This technology provides a foldable electrode that fits through a small needle, allowing for minimal surgical scarring. The deployable and retractable electrode can be re-folded for removal if necessary. The device effectively prevents dislocation and migration, offering a larger surface area for pain management with a minimally invasive approach.

Invention Readiness

A prototype of the SCS device has been successfully designed, fabricated, and tested in vitro. The device's innovative design and materials have been validated through various tests, demonstrating its potential for effective pain management in clinical settings.

IP Status

https://patents.google.com/patent/WO2025178822A1