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3D printing of face shields to meet the immediate need for PPE in an anesthesiology department during the COVID-19 pandemic.

Abstract：

BACKGROUND:Anesthesia providers are at risk for contracting COVID-19 due to close patient contact, especially during shortages of personal protective equipment. We present an easy to follow and detailed protocol for producing 3D printed face shields and an effective decontamination protocol, allowing their reuse. METHODS:The University of Nebraska Medical Center (UNMC) produced face shields using a combination of 3D printing and assembly with commonly available products, and produced a simple decontamination protocol to allow their reuse. To evaluate the effectiveness of the decontamination protocol, we inoculated bacterial suspensions of E. coli and S. aureus on to the face shield components, performed the decontamination procedure, and finally swabbed and enumerated organisms onto plates that were incubated for 12-24 hours. Decontamination effectiveness was evaluated using the average log10 reduction in colony counts. RESULTS:Approximately 112 face shields were constructed and made available for use in 72 hours. These methods were successfully implemented for in-house production at UNMC and at Tripler Army Medical Center (Honolulu, Hawaii). Overall, the decontamination protocol was highly effective against both E. coli and S. aureus, achieving a ≥4 log10 (99.99%) reduction in colony counts for every replicate from each component of the face shield unit. DISCUSSION:Face shields not only act as a barrier against the soiling of N95 face masks, they also serve as more effective eye protection from respiratory droplets over standard eye shields. Implementation of decontamination protocols successfully allowed face shield and N95 mask reuse, offering a higher level of protection for anesthesiology providers at the onset of the COVID-19 pandemic. CONCLUSIONS:In a time of urgent need, our protocol enabled the rapid production of face shields by individuals with little to no 3D printing experience, and provided a simple and effective decontamination protocol allowing reuse of the face shields.

journal_name

Am J Infect Control

journal_title

American journal of infection control

authors

Armijo PR,Markin NW,Nguyen S,Ho DH,Horseman TS,Lisco SJ,Schiller AM

doi

10.1016/j.ajic.2020.07.037

subject

Has Abstract

pub_date

2020-08-04 00:00:00

eissn

0196-6553

issn

1527-3296

pii

S0196-6553(20)30762-8

pub_type

杂志文章

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3D printing of face shields to meet the immediate need for PPE in an anesthesiology department during the COVID-19 pandemic.