American College Of Surgeons - Inspiring Quality: Highest Standards, Better Outcomes

Personal Protective Equipment (PPE)

Italian Company Develops 3D-Printed Adapter to Turn Snorkeling Mask into Ventilator

Isinnova, an engineering and design company in Italy, recently has developed a 3D-printed adapter that turns a mass-market snorkeling mask into a noninvasive ventilator for COVID-19 patients. The company began work on the device after being contacted by a retired Italian physician, who had an idea to adapt an available component into an emergency ventilator mask that have been in short supply in the pandemic.

Isinnova worked with Decathlon, the French company that produces the snorkeling masks, to understand the base product and build an adapter that would connect the mask to a ventilator system. The adapter, called the “Charlotte valve,” is quick to 3D print and has been tested successfully on a patient in a hospital in Chiari, Province of Brescia.

The company patented the adapter but has made multiple versions of the 3D printer files freely available on their website, in addition to design sketches and other printer settings.

Personal Protective Equipment Use Overview from Milan, Italy

Antonio Spinelli, MD, PhD, FASCRS, Chief of the Division of Colorectal Surgery at Humanitas University Hospital in central Milan, Italy, shared an overview of personal protective equipment (PPE) use from a COVID-19 epicenter. Information and an overview of PPE consumption at Hospital Clinico San Carlos follows.

Each INTENSIVE CARE UNIT (12 beds) (to cover 24h shifts)
12 doctors (8 consultants + 4 residents)
32 nurses
2 access for radiology technician (bedside X ray)
2 access for cleaning personnel
about 2 access for consulting specialists (ex. cardiologist, infectious disease)
24h full equipment for 50 workers in ICU (12 beds) (double gloves, gowns, faceshields and n95 masks)
PPE need estimate: 100 gloves, 50 gowns, 50 face shields, 50 masks

WARD (up to 40 beds) (to cover 24h shifts)
10 doctors (5 consultants + 5 residents)
24 nurses
1 access for radiology technician (bedside X ray)
2 access for cleaning personnel
about 2 access for consulting specialists (ex. cardiologist, infectious disease)
24h full equipment for 39 workers in WARD (up to 40 beds) (double gloves, gowns, faceshields and n95 masks)
PPE need estimate: 78 gloves, 39 gowns, 39 face shields, 39 masks

DURING SURGERY
2 surgeons
3 nurses
1 anesthesiologist
1 cleaning personnel
PPE need estimate: 14 gloves, 7 gowns, 7 face shields, 7 masks

DURING ENDOSCOPY
1 endoscopist
1 nurse
1 anesthesiologist (if required)
1 cleaning personnel
PPE need estimate: 8 gloves, 4 gowns, 4 face shields, 4 masks