Summary: Lasers in Surgery and Medicine 34:155­163 (2004)
Effect of Skin Indentation on Heat Transfer During
Cryogen Spray Cooling
Brooke Basinger, BS,1
Guillermo Aguilar, PhD,1,2
* and J. Stuart Nelson, MD, PhD
1
1
Beckman Laser Institute, University of California, Irvine, California 92612
2
Department of Mechanical Engineering, University of California, Riverside, California 92521
Background and Objectives: Cryogen spray cooling
(CSC) is used to pre-cool the epidermis during dermatolo-
gical laser procedures such as treatment of port wine stain
(PWS) birthmarks, hair removal, and non-ablative photo-
rejuvenation. Thus far, heat transfer studies related to
CSC optimization have assumed a flat surface but clinical
observation suggests that human skin indents due to the
force of an impinging cryogen spray.
Study Design/Materials and Methods: High-speed

Source: Aguilar, Guillermo - Department of Mechanical Engineering, University of California at Riverside

Collections: Engineering