Presentation Title

Design Evolution of a DBD Plasma Generator for Rapid Healing and Sterilization of Chronic Wounds

Faculty Mentor

Syed Zaidi

Start Date

23-11-2019 8:00 AM

End Date

23-11-2019 8:45 AM

Location

157

Session

poster 1

Type of Presentation

Poster

Subject Area

engineering_computer_science

Abstract

Rapid healing and sterilization of chronic wounds is vital for millions of patients around the world. Non-equilibrium plasma discharge jets/torches are now being used to achieve that. Current work at San Jose State University (SJSU) includes the design and characterization of a plasma torch for this use in which both helium and argon are used as the carrier gases to generate DBD (Dielectric Barrier Discharge) plasma jets. The initial design of the plasma torch was based on the idea presented in a patent (# US 9,433,071 B2), which proposed methods for controlling plasma properties. Since then, the design of the plasma torch has gone through various alterations. Performance testing of the first design revealed several limitations that were eliminated in the second iteration. A second plasma torch was developed at IntelliScience and was tested at SJSU. New performance testing results (plume temperature and plume lengths at various operating conditions) from the second design will be presented. Spectroscopic signatures of the plasma plume have been captured at various operating conditions. Spectroscopic images and preliminary results on blood coagulation under the plasma jet will be discussed. Further design changes were proposed that led to the third design. In the new design, multiple plasma torches are being developed that will be mounted on an automated 2D traversing system to scan the wound surface at a desired speed (patent in progress). The work presented in this conference will highlight the design evolution of the three plasma torches. The proposed third design will also be included for review.

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Nov 23rd, 8:00 AM Nov 23rd, 8:45 AM

Design Evolution of a DBD Plasma Generator for Rapid Healing and Sterilization of Chronic Wounds

157

Rapid healing and sterilization of chronic wounds is vital for millions of patients around the world. Non-equilibrium plasma discharge jets/torches are now being used to achieve that. Current work at San Jose State University (SJSU) includes the design and characterization of a plasma torch for this use in which both helium and argon are used as the carrier gases to generate DBD (Dielectric Barrier Discharge) plasma jets. The initial design of the plasma torch was based on the idea presented in a patent (# US 9,433,071 B2), which proposed methods for controlling plasma properties. Since then, the design of the plasma torch has gone through various alterations. Performance testing of the first design revealed several limitations that were eliminated in the second iteration. A second plasma torch was developed at IntelliScience and was tested at SJSU. New performance testing results (plume temperature and plume lengths at various operating conditions) from the second design will be presented. Spectroscopic signatures of the plasma plume have been captured at various operating conditions. Spectroscopic images and preliminary results on blood coagulation under the plasma jet will be discussed. Further design changes were proposed that led to the third design. In the new design, multiple plasma torches are being developed that will be mounted on an automated 2D traversing system to scan the wound surface at a desired speed (patent in progress). The work presented in this conference will highlight the design evolution of the three plasma torches. The proposed third design will also be included for review.