Coleman, R.B. and Richardson, R.N.
A novel closed cycle cryosurgical system
International Journal of Refrigeration, 28, (3), . (doi:10.1016/j.ijrefrig.2004.07.021).
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Cryosurgery is a well established technique that can offer considerable advantages to the patient. To date cryosurgical instruments have predominantly employed either liquid cryogens or the J–T expansion of high-pressure gases in an open cycle. The handling of cryogens or high pressure gases in a surgical environment poses logistical problems. A two-stage vapour cycle cryosurgical system has been designed to use either R23 or R508B in the low temperature stage and R404A for pre-cooling. This paper reports the results of trials of the prototype using R23 in the low temperature stage. The cooling performance achieved equals that of existing, open cycle, cryosurgical systems.
|Digital Object Identifier (DOI):
||Article in English. French title: Un nouveau cycle fermé utilisé dans les applications cryochirurgicales
||cryosurgery, cryoprobe, thermodynamic cycle, liquid nitrogen, two-stage system, r-23, r-508b, r404a, performance
||14 Mar 2006
||16 Apr 2017 22:51
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