A novel closed cycle cryosurgical system


Coleman, R.B. and Richardson, R.N. (2005) A novel closed cycle cryosurgical system. International Journal of Refrigeration, 28, (3), 412-418. (doi:10.1016/j.ijrefrig.2004.07.021).

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Description/Abstract

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.

Item Type: Article
Additional Information: Article in English. French title: Un nouveau cycle fermé utilisé dans les applications cryochirurgicales
ISSNs: 0140-7007 (print)
Related URLs:
Keywords: cryosurgery, cryoprobe, thermodynamic cycle, liquid nitrogen, two-stage system, r-23, r-508b, r404a, performance
Subjects: T Technology > TJ Mechanical engineering and machinery
R Medicine > RD Surgery
Divisions: University Structure - Pre August 2011 > School of Engineering Sciences
ePrint ID: 22347
Date Deposited: 14 Mar 2006
Last Modified: 27 Mar 2014 18:11
Contact Email Address: cryrnr@soton.ac.uk
URI: http://eprints.soton.ac.uk/id/eprint/22347

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