Office for Technology Commercialization

Central Airway Stent Removal Device

Technology #20180250

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Trachea and bronchi
Roy Cho, MD, MHA
Assistant Professor of Medicine
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Felix Landaeta, M.Sc
Innovation Fellow, Earl E. Bakken Medical Devices Center
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Matthew Kudek, MD
Innovation Fellow, Earl E. Bakken Medical Devices Center
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Managed By
Doug Franz
Technology Licensing Officer 612-624-0869
Patent Protection

US Patent Pending

Removes stents from central airway structures

A device for placement, repositioning or removal of central airway (i.e., trachea and main bronchi) stents using either a flexible or rigid bronchoscopy. The device uses a stent gripping mechanism with the appropriate range of force required to detach a stent from tracheal/bronchial tissue and to travel across tracheal/bronchial cavity to remove it.

Durable tool can grip and remove stent

Central airway stenting is a necessary option for treating central airway stenosis arising from lung transplant or lung cancer complications. However, stent placement can also result in complications such as stent migration from affected area, ingrown tissue around stent, infection, necrosis, which require removal of the stent. Interventional Pulmonologists use standard forceps that do not work well with the mechanical and geometrical properties of stents. The process can take a long time to capture or destroy the stent in order to remove it. Sometimes the process must be aborted and the stent must stay implanted. Currently, there is no specific tool designed for removing central airway stents. This new device was designed to withstand the mechanical and geometrical properties of airway stents to allow for their removal.

Phase of Development

  • Prototype built.


  • Allows travel across tracheal/bronchial cavity for removal of stent
  • Designed to couple with mechanical and geometrical properties of stents


  • Remove stents located in central airway structures (i.e., trachea and main bronchi)
  • Novel stent gripping mechanism provides appropriate range of force
  • For use under direct visual observation with an endoscope


  • Central airway stent removal
  • Interventional pulmonology

Interested in Partnering?
This technology has been licensed to a start-up company. The company is looking for strategic corporate partners and investment capital. Please contact Kevin Nickels to share your business needs and interests.