Clin Endosc.  2022 Nov;55(6):815-818. 10.5946/ce.2022.025.

Aerosol extractor for COVID-2019 prevention during endoscopic procedure

• Hikichi T
• Kato T
• Kobashi R
• Hashimoto M
• Nakamura J

• KMID: 2536083
• DOI: http://doi.org/10.5946/ce.2022.025

Figure

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  Fig. 1. The appearance of Free-100Next (Forest-One Co., Tokyo, Japan). (A) An overall view of Free-100Next. The yellow arrow indicates the vacuuming part. (B) A scene of clinical practice wherein Free-100Next is used during upper gastrointestinal endoscopy. The vacuuming part (yellow arrows) is positioned near the mouth of the patient.

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  Fig. 2. The vacuuming effect of Free-100Next (Forest-One Co., Tokyo, Japan). and its use with a box-type droplet prevention device. (A) The experiment was conducted in a dark room to verify the vacuuming effect of Free-100Next on pseudo-saliva using a mannequin. Pseudo-saliva was successfully captured using the Free-100Next. (B) Free-100Next was used with a box-type droplet prevention device. During the upper gastrointestinal endoscopy, Free-100Next was placed inside the AP Cover (ABIS Corp., Hyogo, Japan) from the patient’s head. Yellow arrows indicate the vacuuming parts in the Free-100Next.

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  Fig. 3. An experiment to prove the ability of Free-100Next (Forest-One Co., Tokyo, Japan). (A) An experiment was conducted to determine the ability of Free-100Next to capture externally injected viruses in a closed space of 25 m3 using a control without Free-100Next to verify the reduction in the number of viruses in the space over time. The yellow arrow indicates the vacuumed part of Free-100Next. (B) The number of floating viruses in the space decreased by 60% after 15 minutes, 84% after 30 minutes, and 97% after 60 minutes, compared to the non-activation of Free-100Next. The blue line shows the changes in the number of floating viruses in the closed space, where the Free-100Next is activated. The red line indicates the same situation without Free-100Next activation.

Reference

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