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The novel coronavirus (COVID-19) pandemic has produced many medical challenges, which LSU Health Shreveport has risen to meet. Among the most important goals for clinicians and scientists has been to determine whether a patient is infected with COVID-19. While the LSUHS COVID-19 Response Team very rapidly created the Emerging Viral Threat (EVT) Lab at the health sciences center, there have been national shortages for testing supplies, which have threatened the ability of such testing labs to perform tests. A crucial part of COVID-19 test kits are the nasal swabs, which have been in short supply as the demand for COVID-19 testing has increased around the United States and internationally. These swabs need to be prepared from specific materials and must have particular shapes to ensure accuracy of for specimen collection.

“This type of printing enables us to make even the most sophisticated testing tools available anywhere and the workflow is increasing so that hopefully soon we may not only meet our own needs, but perhaps other hospitals in the area,” said Dr. Alexander. “The COVID-19 pandemic has fundamentally challenged how we work, but 3D printing can really help overcome problems with the availability of medical supplies, shipping and delivery which help to ensure continuity of medical testing and care.”

Scientists at LSU Health Shreveport were able to utilize existing research and design facilities at the institution to 3D print resin polymer nasal swabs which can be used by the EVT Lab. As part of a national cooperative with the University of South Florida (USF) Health, Northwell Health, New York’s largest healthcare provider, and Formlabs, LSU Health Shreveport has obtained the printing files for a patented swab design, becoming the first in Louisiana to produce these patented 3D-printed swabs. Steven Alexander, PhD, Professor in the Department of Molecular and Cellular Physiology, is leading the effort and started to produce these 3D-printed nasal swabs in large numbers using a technique called photopolymer laser printing. This light activated printing technique can produce medical devices which are chemically inert, sterile and compatible with accurate testing procedures.

Dr. Alexander’s lab has started swab production with photoprinting occurring throughout the day and night. His lab has the capability to produce 324 of the swabs in one day and is planning to ramp up production significantly over the next couple of weeks. The printing of additional batches of swabs is already underway, and Dr. Alexander is working with LSU Health Shreveport’s EVT Lab to get the swabs into their COVID-19 test kits.

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Image of 3D printed nasal swabs

3-D Printed Nasal Swabs