scholarly journals Moldable Mask: A Reusable, Hot Water Moldable, Additively Manufactured Mask to Be Used as an N95 Alternative

Materials ◽  
2021 ◽  
Vol 14 (22) ◽  
pp. 7082
Author(s):  
Erica Martelly ◽  
Charles Li ◽  
Kenji Shimada
Keyword(s):  
Personal Protective Equipment ◽  
Early Stage ◽  
Hot Water ◽  
Protective Equipment ◽  
Viable Option ◽  
High Demand ◽  
Mask Design ◽  
3D Printed ◽  
N95 Respirators ◽  
At Home

There has been high demand for personal protective equipment (PPE) during the COVID-19 pandemic, especially N95 respirators. Unfortunately, at the early stage of the pandemic, the supply could not meet the demand for N95 respirators, leading to a shortage and unsafe reuse of this form of PPE. We developed the Moldable Mask to ease the demand for N95 respirators by creating a 3D-printed mask that uses a piece of N95 material as a filter. A sheet of N95 material could be used or one N95 respirator to be turned into two masks. The main feature of the mask is the ability to easily mold it in hot water to create a custom fit for each user. It can also be easily assembled at home with affordable materials. The final mask design was qualitatively fit tested on 13 subjects, with all subjects showing an improvement in fit with the hot water molding technique and 10 (77%) subjects passing the fit test. This shows that the Moldable Mask is a viable option for a safe, affordable N95 alternative when N95 mask supply is strained.

scholarly journals Sterilization and sanitizing of 3D-printed personal protective equipment using polypropylene and a Single Wall design

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Karstan Luchini ◽  
Shelly N. B. Sloan ◽  
Ryan Mauro ◽  
Aspram Sargsyan ◽  
Aundrea Newman ◽  
...  
Keyword(s):  
Bacterial Growth ◽  
Personal Protective Equipment ◽  
General Public ◽  
Healthcare Workers ◽  
Thermoplastic Polyurethane ◽  
Protective Equipment ◽  
E Coli ◽  
3D Printed ◽  
The Cost ◽  
N95 Respirators

Abstract Background The emergence of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) pandemic during the fall of 2019 and into the spring of 2020 has led to an increased demand of disposable N95 respirators and other types of personal protective equipment (PPE) as a way to prevent virus spread and help ensure the safety of healthcare workers. The sudden demand led to rapid modification, development, and dissemination of 3D printed PPE. The goal of this study was to determine the inherent sterility and re-sterilizing ability of 3D printed PPE in order to provide sterile equipment to the healthcare field and the general public. Methods Samples of polylactic acid (PLA), thermoplastic polyurethane (TPU) (infill-based designs) and polypropylene (single-wall hollow design) were 3D printed. Samples were inoculated with E. coli for 24 h and then sanitized using various chemical solutions or heat-based methods. The samples were then incubated for 24- or 72-h in sterile LB medium at 37°C, and bacterial growth was measured by optical density at 600nm. Statistical analysis was conducted using GraphPad Prism v8.2.1. Results Significant bacterial growth was observed in all PLA and TPU based samples following re-sterilization, regardless of the methods used when compared to controls (p < 0.05). The single-walled hollow polypropylene design was not only sterile following printing, but was also able to undergo re-sanitization following bacterial inoculation, with no significant bacterial growth (p > 0.05) observed regardless of sanitization method used. Conclusion The cost effectiveness, ease of sanitization, and reusability of 3D printed PPE, using our novel single-walled polypropylene design can help meet increased demands of PPE for healthcare workers and the general public that are needed to help decrease the viral transmission of the coronavirus disease of 2019 (COVID-19) pandemic. 3D printing also has the potential to lead to the creation and production of other sterile material items for the healthcare industry in the future. The ability to re-sterilize 3D printed PPE, as our design shows, would also contribute less to the increase in biomedical waste (BMW) being experienced by COVID-19.

scholarly journals Contagion Management at the Méditerranée Infection University Hospital Institute

2021 ◽  
Vol 10 (12) ◽  
pp. 2627
Author(s):  
Pierre-Edouard Fournier ◽  
Sophie Edouard ◽  
Nathalie Wurtz ◽  
Justine Raclot ◽  
Marion Bechet ◽  
...  
Keyword(s):  
Infectious Disease ◽  
Early Diagnosis ◽  
Personal Protective Equipment ◽  
Early Stage ◽  
Point Of Care ◽  
University Hospital ◽  
Protective Equipment ◽  
Monitoring Point ◽  
Epidemiological Monitoring ◽  
Wide Range

The Méditerranée Infection University Hospital Institute (IHU) is located in a recent building, which includes experts on a wide range of infectious disease. The IHU strategy is to develop innovative tools, including epidemiological monitoring, point-of-care laboratories, and the ability to mass screen the population. In this study, we review the strategy and guidelines proposed by the IHU and its application to the COVID-19 pandemic and summarise the various challenges it raises. Early diagnosis enables contagious patients to be isolated and treatment to be initiated at an early stage to reduce the microbial load and contagiousness. In the context of the COVID-19 pandemic, we had to deal with a shortage of personal protective equipment and reagents and a massive influx of patients. Between 27 January 2020 and 5 January 2021, 434,925 nasopharyngeal samples were tested for the presence of SARS-CoV-2. Of them, 12,055 patients with COVID-19 were followed up in our out-patient clinic, and 1888 patients were hospitalised in the Institute. By constantly adapting our strategy to the ongoing situation, the IHU has succeeded in expanding and upgrading its equipment and improving circuits and flows to better manage infected patients.

scholarly journals COVID-19 global pandemic planning: Dry heat incubation and ambient temperature fail to consistently inactivate SARS-CoV-2 on N95 respirators

2020 ◽  
pp. 153537022097781
Author(s):  
Douglas J Perkins ◽  
Robert A Nofchissey ◽  
Chunyan Ye ◽  
Nathan Donart ◽  
Alison Kell ◽  
...  
Keyword(s):  
Ambient Temperature ◽  
Personal Protective Equipment ◽  
Healthcare Personnel ◽  
Protective Equipment ◽  
Experimental Conditions ◽  
Dry Heat ◽  
Global Pandemic ◽  
Individual Site ◽  
Pandemic Planning ◽  
N95 Respirators

The ongoing pandemic of the novel severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has placed a substantial strain on the supply of personal protective equipment, particularly the availability of N95 respirators for frontline healthcare personnel. These shortages have led to the creation of protocols to disinfect and reuse potentially contaminated personal protective equipment. A simple and inexpensive decontamination procedure that does not rely on the use of consumable supplies is dry heat incubation. Although reprocessing with this method has been shown to maintain the integrity of N95 respirators after multiple decontamination procedures, information on the ability of dry heat incubation to inactivate SARS-CoV-2 is largely unreported. Here, we show that dry heat incubation does not consistently inactivate SARS-CoV-2-contaminated N95 respirators, and that variation in experimental conditions can dramatically affect viability of the virus. Furthermore, we show that SARS-CoV-2 can survive on N95 respirators that remain at room temperature for at least five days. Collectively, our findings demonstrate that dry heat incubation procedures and ambient temperature for five days are not viable methods for inactivating SARS-CoV-2 on N95 respirators for potential reuse. We recommend that decontamination procedures being considered for the reuse of N95 respirators be validated at each individual site and that validation of the process must be thoroughly conducted using a defined protocol.

An online study to assess the disposal of personal protective equipment at home amid COVID-19 pandemic in India

2021 ◽  
Vol 7 (1) ◽  
pp. 55
Author(s):  
Archana Thakur ◽  
SwapnilTanaji Sangle ◽  
Shrilekha Rao ◽  
RodneyPreetham Vaz ◽  
Pallika Singh ◽  
...  
Keyword(s):  
Personal Protective Equipment ◽  
Protective Equipment ◽  
Online Study ◽  
At Home

scholarly journals Decontamination methods of personal protective equipment for repeated utilization in medical/surgical settings

2020 ◽  
Vol 8 (34) ◽  
pp. 27-39
Author(s):  
Abdurrahman Kharbat ◽  
Adin Mizer ◽  
Mimi Zumwalt
Keyword(s):  
Personal Protective Equipment ◽  
Healthcare Workers ◽  
Protective Equipment ◽  
Pilot Studies ◽  
Medical Supplies ◽  
Policy Statements ◽  
Repeated Use ◽  
Meta Analyses ◽  
N95 Respirators ◽  
Made In

The COVID-19 pandemic has affected citizens and healthcare workers worldwide due to a number of important factors. The transmission of the SARS CoV-2 microorganism, the pathogen that causes COVID-19 infection, occurs through droplet and aerosol spread due to coughs and sneezes from infected patients. A panicked public began hoarding medical supplies and personal protective equipment (PPE), leaving healthcare workers to care for patients without adequate protection. A literature review was conducted to better understand the options available to hospital and healthcare system administrators as they develop necessary protocols for the conservation and possible reuse of PPE. This review is based upon the peer-reviewed studies of various scientific investigators, biotechnology researchers, governmental agency health officials, including meta-analyses, preliminary/pilot studies, and policy statements. Current findings indicate that extended usage of N95 respirators is practical since there are methods available for the decontamination/repeated use of N95 respirators. In evaluating the efficacy of such methods, the safety of healthcare workers is important in deciding which method to recommend. Available evidence supports the use of the Bioquell Hydrogen Peroxide Vapor (HPV) system for decontaminating N95 respirators. Information on other PPE will also be discussed about more specific items. Informed decisions regarding the policies of hospitals and healthcare systems must be considered, and with the safety of healthcare workers in mind, both factors influenced the recommendations made in this comprehensive review.

scholarly journals COVID-19 crisis prompting innovation in addressing personal protective equipment shortage

2020 ◽  
Vol 7 (1) ◽  
pp. 69-72 ◽  
Author(s):  
Kripa Rajak
Keyword(s):  
Health Care ◽  
Supply Chain ◽  
Personal Protective Equipment ◽  
Health Care Systems ◽  
Protective Equipment ◽  
Remote Work ◽  
Care Systems ◽  
N95 Respirators ◽  
Silver Lining

Coronavirus disease 2019 (COVID-19) has swept across the globe overwhelming health care systems and disrupting supply chain of personal protective equipment (PPE) like gloves, surgical face masks, goggles, face shields, N95 respirators and gowns. Surging demand, panic buying, hoarding, and misuse of PPE has led to substantial jump in its demand. Despite the terrible impact of COVID-19, if there’s any silver lining to this crisis, it is the rapidity at which communities are moving toward innovation in not just medicine and remote work but also in ways to mitigate the growing PPE shortages.

scholarly journals Leveraging 3D Printing Capacity in Times of Crisis: Recommendations for COVID-19 Distributed Manufacturing for Medical Equipment Rapid Response

2020 ◽  
Vol 17 (13) ◽  
pp. 4634 ◽  
Author(s):  
Albert Manero ◽  
Peter Smith ◽  
Amanda Koontz ◽  
Matt Dombrowski ◽  
John Sparkman ◽  
...  
Keyword(s):  
3D Printing ◽  
Hospital Staff ◽  
Global Supply Chain ◽  
Protective Equipment ◽  
High Demand ◽  
Global Demand ◽  
Short Run ◽  
3D Printed ◽  
Traditional Manufacturing ◽  
Rule Out

The SARS-CoV-2 (COVID-19) pandemic has provided a unique set of global supply chain limitations with an exponentially growing surge of patients requiring care. The needs for Personal Protective Equipment (PPE) for hospital staff and doctors have been overwhelming, even just to rule out patients not infected. High demand for traditionally manufactured devices, challenged by global demand and limited production, has resulted in a call for additive manufactured (3D printed) equipment to fill the gap between traditional manufacturing cycles. This method has the unique ability to pivot in real time, while traditional manufacturing may take months to change production runs. 3D printing has been used to produce a variety of equipment for hospitals including face shields, masks, and even ventilator components to handle the surge. This type of rapid, crowd sourced, design and production resulted in new challenges for regulation, liability, and distribution. This manuscript reviews these challenges and successes of additive manufacturing and provides a forward plan for hospitals to consider for future surge events. Recommendations: To accommodate future surges, hospitals and municipalities should develop capacity for short-run custom production, enabling them to validate new designs. This will rapidly increase access to vetted equipment and critical network sharing with community distributed manufacturers and partners. Clear guidance and reviewed design repositories by regulatory authorities will streamline efforts to combat future pandemic waives or other surge events.

scholarly journals 3D Printing to Support the Shortage in Personal Protective Equipment Caused by COVID-19 Pandemic

Materials ◽  
2020 ◽  
Vol 13 (15) ◽  
pp. 3339 ◽  
Author(s):  
Mostapha Tarfaoui ◽  
Mourad Nachtane ◽  
Ibrahim Goda ◽  
Yumna Qureshi ◽  
Hamza Benyahia
Keyword(s):  
3D Printing ◽  
Medical Devices ◽  
Personal Protective Equipment ◽  
Health Concern ◽  
Protective Equipment ◽  
Global Public Health ◽  
Comprehensive Overview ◽  
3D Printed ◽  
Single Use ◽  
Tract Infections

Currently, the emergence of a novel human coronavirus disease, named COVID-19, has become a great global public health concern causing severe respiratory tract infections in humans. Yet, there is no specific vaccine or treatment for this COVID-19 where anti-disease measures rely on preventing or slowing the transmission of infection from one person to another. In particularly, there is a growing effort to prevent or reduce transmission to frontline healthcare professionals. However, it is becoming an increasingly international concern respecting the shortage in the supply chain of critical single-use personal protective equipment (PPE). To that scope, we aim in the present work to provide a comprehensive overview of the latest 3D printing efforts against COVID-19, including professional additive manufacturing (AM) providers, makers and designers in the 3D printing community. Through this review paper, the response to several questions and inquiries regarding the following issues are addressed: technical factors connected with AM processes; recommendations for testing and characterizing medical devices that additively manufactured; AM materials that can be used for medical devices; biological concerns of final 3D printed medical parts, comprising biocompatibility, cleaning and sterility; and limitations of AM technology.

scholarly journals Integrated 3D printing solution to mitigate shortages of airway consumables and personal protective equipment during the COVID-19 pandemic

2020 ◽  
Vol 20 (1) ◽  
Author(s):  
Ferran Fillat-Gomà ◽  
Sergi Coderch-Navarro ◽  
Laia Martínez-Carreres ◽  
Núria Monill-Raya ◽  
Toni Nadal-Mir ◽  
...  
Keyword(s):  
Supply Chain ◽  
3D Printing ◽  
Medical Devices ◽  
Personal Protective Equipment ◽  
Medical Equipment ◽  
Quality Standard ◽  
Global Supply Chain ◽  
Protective Equipment ◽  
3D Printed ◽  
Online Catalogue

Abstract Background To cope with shortages of equipment during the COVID-19 pandemic, we established a nonprofit end-to-end system to identify, validate, regulate, manufacture, and distribute 3D-printed medical equipment. Here we describe the local and global impact of this system. Methods Together with critical care experts, we identified potentially lacking medical equipment and proposed solutions based on 3D printing. Validation was based on the ISO 13485 quality standard for the manufacturing of customized medical devices. We posted the design files for each device on our website together with their technical and printing specifications and created a supply chain so that hospitals from our region could request them. We analyzed the number/type of items, petitioners, manufacturers, and catalogue views. Results Among 33 devices analyzed, 26 (78·8%) were validated. Of these, 23 (88·5%) were airway consumables and 3 (11·5%) were personal protective equipment. Orders came from 19 (76%) hospitals and 6 (24%) other healthcare institutions. Peak production was reached 10 days after the catalogue was published. A total of 22,135 items were manufactured by 59 companies in 18 sectors; 19,212 items were distributed to requesting sites during the busiest days of the pandemic. Our online catalogue was also viewed by 27,861 individuals from 113 countries. Conclusions 3D printing helped mitigate shortages of medical devices due to problems in the global supply chain.

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