A novel closed cycle cryosurgical system
A novel closed cycle cryosurgical system
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.
cryosurgery, cryoprobe, thermodynamic cycle, liquid nitrogen, two-stage system, r-23, r-508b, r404a, performance
412-418
Coleman, R.B.
227cf3ee-2ea7-4cee-a7d0-69cfff42d21d
Richardson, R.N.
972cc0b1-7c0b-4c43-8f2f-1b3f14d3fc5e
2005
Coleman, R.B.
227cf3ee-2ea7-4cee-a7d0-69cfff42d21d
Richardson, R.N.
972cc0b1-7c0b-4c43-8f2f-1b3f14d3fc5e
Coleman, R.B. and Richardson, R.N.
(2005)
A novel closed cycle cryosurgical system.
International Journal of Refrigeration, 28 (3), .
(doi:10.1016/j.ijrefrig.2004.07.021).
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.
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More information
Published date: 2005
Additional Information:
Article in English. French title: Un nouveau cycle fermé utilisé dans les applications cryochirurgicales
Keywords:
cryosurgery, cryoprobe, thermodynamic cycle, liquid nitrogen, two-stage system, r-23, r-508b, r404a, performance
Identifiers
Local EPrints ID: 22347
URI: http://eprints.soton.ac.uk/id/eprint/22347
ISSN: 0140-7007
PURE UUID: fcd878fd-f943-4ac7-b338-bc0bcc492952
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Date deposited: 14 Mar 2006
Last modified: 15 Mar 2024 06:37
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Author:
R.B. Coleman
Author:
R.N. Richardson
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