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Applications of Air Plasma for Wound Bleeding Control and Healing

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4 Author(s)
Spencer P. Kuo ; Department of Electrical and Computer Engineering, Polytechnic Institute of New York University , Brooklyn, NY, USA ; Cheng-Yen Chen ; Chuan-Shun Lin ; Shu-Hsing Chiang

The design and the electric and emission characteristics of a handheld air plasma spray are presented. The plasma is generated by 60-Hz periodic discharges between two concentrically cylindrical electrodes. A ring magnet is used to rotate arc discharges, which sprays outward by an airflow. The rotation of arc discharges keeps the generated plasma in nonequilibrium state and at relatively low temperature . The plasma effluent still contains high-energy electrons which dissociate molecular oxygen into atomic oxygen. The emission spectroscopy of the plasma plume reveals that the plasma effluent, which carries abundant atomic oxygen, extends from the cap of the plasma spray about 25 mm. Using pigs as the animal model, in vivo tests of stopping wound bleeding and postoperative observation of wound healing by this air plasma spray were performed. The results show that the bleeding from a cut to an ear artery is stopped swiftly; this air plasma spray also shortens wound healing time to about half (from 14 days to 8 days) after stopping the bleeding of a cross-cut wound in the ham area.

Published in:

IEEE Transactions on Plasma Science  (Volume:40 ,  Issue: 4 )