Applying negative ions to reduce surgical smoke in operation room

Ninh, Xuan-Huy; Su, Jilan; Lin, Hsiu-Chin; Chen, Yung‐Chung; Wang, Sheng-He; Guo, How‐Ran; Kuo, Yao‐Lung; Lin, Miao

doi:10.1016/j.aeaoa.2022.100184

Cited by 3 publications

(2 citation statements)

References 40 publications

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“…[28] A pre-clinical study showed reduction of PM 2.5 from use of another commercial smoke pencil (SW12200, Shinmed) of 93%. [29] During pediatric tonsillectomy, a smoke evacuation pencil (Neptune E-SEP) lowered particulate levels by 93.8%. [30] To the best of our knowledge, no other studies have evaluated removal of formaldehyde by smoke evacuation pencils.…”

Section: Discussionmentioning

confidence: 99%

Determination of Smoke Particulates and Formaldehyde Removal from the Surgical Site by a Smoke Evacuator

G. Sadowsky,

K. Horner,

W. Clymer

et al. 2023

Open Acc J Nurs

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Background: Modern smoke evacuators are equipped with high-efficiency filters capable of capturing particulates generated by electrosurgery. However, the efficacy of an evacuator also depends upon the design of the device that captures the smoke. This study was performed to evaluate the removal of particulates and formaldehyde in smoke at the surgical site by the Megadyne Smoke Evacuator and Telescoping Smoke Evacuator Pencil.Methods: Electrosurgery was performed on ex vivo porcine liver in an operating room setting. Peak levels of PM 2.5 , PM 10 , total particles and formaldehyde were monitored at 30 cm above the electrosurgical site, i.e., at the level of the surgeon's head. Measurements were made and compared with the smoke evacuator turned on and off.Results: Use of the smoke evacuator reduced levels of PM 2.5 , PM 10 , total particles and formaldehyde at the surgical site by over 99% (p<0.001). Conclusion:The combination of the Megadyne Smoke Evacuator and Telescoping Smoke Evacuator Pencil effectively removed smoke from the region where particulates and formaldehyde are most concentrated. By lowering the concentration of particulates and volatile organic compounds at the surgical site, the Megadyne Smoke Evacuator can help to improve air quality in the operating room and respiratory comfort of the staff.

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Section: Discussionmentioning

confidence: 99%

Determination of Smoke Particulates and Formaldehyde Removal from the Surgical Site by a Smoke Evacuator

G. Sadowsky,

K. Horner,

W. Clymer

et al. 2023

Open Acc J Nurs

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“…In Ref. [13] the authors proposed that the coupling between localized and extended states in their overlapped spectrum can provide a general recipe to construct critical states for two-chain models. In Ref.…”

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confidence: 99%

Predicted Critical State Based on Invariance of the Lyapunov Exponent in Dual Spaces

Liu 刘,

Xia 夏

2024

Chinese Phys. Lett.

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The critical state in disordered systems, a fascinating and subtle eigenstate, has attracted a lot of research interest. However, the nature of the critical state is difficult to describe quantitatively, and in general, it cannot predict a system that hosts the critical state. In this work, we propose an explicit criterion that the Lyapunov exponent of the critical state should be 0 simultaneously in dual spaces, namely Lyapunov exponent remains invariant under the Fourier transform. With this criterion, we exactly predict a one-dimensional quasiperiodic model which is not self-duality, but hosts a large number of critical states. Then, we perform numerical verification of the theoretical prediction and display the self-similarity of the critical state. Due to computational complexity, higher dimensional models are not performed calculations, however, since the description of extended and localized states by the Lyapunov exponent is universal and dimensionless, utilizing the Lyapunov exponent of dual spaces to describe critical states should also be universal. Finally, we conjecture that there exists some kind of connection between the invariance of the Lyapunov exponent and conformal invariance, which can promote the research of critical phenomena.

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Ten questions concerning particle exposure in open electrosurgery and its control strategies

Wu,

Ding,

Zhang

et al. 2024

International Journal of Ventilation

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Applying negative ions to reduce surgical smoke in operation room

Cited by 3 publications

References 40 publications

Determination of Smoke Particulates and Formaldehyde Removal from the Surgical Site by a Smoke Evacuator

Determination of Smoke Particulates and Formaldehyde Removal from the Surgical Site by a Smoke Evacuator

Predicted Critical State Based on Invariance of the Lyapunov Exponent in Dual Spaces

Ten questions concerning particle exposure in open electrosurgery and its control strategies

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