Experimental study of cryogen spray properties for application in dermatologic laser surgery. Academic Article

abstract

• Cryogenic sprays are used for cooling human skin during laser dermatologic surgery. In this paper, six straight-tube nozzles are characterized by photographs of cryogenic spray shapes, as well as measurements of average droplet diameter, velocity, and temperature. A single-droplet evaporation model to predict average spray droplet diameter and temperature is tested using the experimental data presented here. The results show two distinct spray patterns--sprays for 1.4-mm-diameter nozzles (wide nozzles) show significantly larger average droplet diameters and higher temperatures as a function of distance from the nozzle compared with those for 0.5-0.8-mm-diameter nozzles (narrow nozzles). These results complement and support previously reported studies, indicating that wide nozzles induce more efficient heat extraction than the narrow nozzles.

authors

• Aguilar-Mendoza, Guillermo

published proceedings

• IEEE Trans Biomed Eng

author list (cited authors)

• Aguilar, G., Majaron, B., Karapetian, E., Lavernia, E. J., & Nelson, J. S.

citation count

• 27

complete list of authors

• Aguilar, Guillermo||Majaron, Boris||Karapetian, Emil||Lavernia, Enrique J||Nelson, J Stuart

publication date

• July 2003

publisher

• Institute of Electrical and Electronics Engineers (IEEE)  Publisher

keywords

• Administration, Topical
• Aerosol Propellants
• Burns
• Cryotherapy
• Dermatologic Surgical Procedures
• Dermatology
• Drug Delivery Systems
• Equipment Design
• Equipment Failure Analysis
• Equipment Safety
• Hot Temperature
• Hydrocarbons, Fluorinated
• Laser Therapy
• Materials Testing
• Particle Size
• Rheology
• Sensitivity And Specificity
• Skin
• Skin Temperature
• Temperature
• Thermography

Digital Object Identifier (DOI)

• 10.1109/TBME.2003.813537

start page

• 863

end page

• 869

volume

• 50

issue

• 7

URL

• http://dx.doi.org/10.1109/tbme.2003.813537