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On-line Access: 2010-01-01

Received: 2009-02-10

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Crosschecked: 2009-11-09

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Journal of Zhejiang University SCIENCE A 2010 Vol.11 No.2 P.128-131

http://doi.org/10.1631/jzus.A0900071


Experimental study on a cryosurgery apparatus


Author(s):  Shao-zhi ZHANG, Dong-bo WU, Ge YANG, Guang-ming CHEN

Affiliation(s):  Institute of Refrigeration and Cryogenics, Zhejiang University, Hangzhou 310027, China

Corresponding email(s):   gmchen@zju.edu.cn

Key Words:  Cryosurgery, Cryoprobe, Auto-cascade refrigeration system, Refrigerant mixture


Shao-zhi ZHANG, Dong-bo WU, Ge YANG, Guang-ming CHEN. Experimental study on a cryosurgery apparatus[J]. Journal of Zhejiang University Science A, 2010, 11(2): 128-131.

@article{title="Experimental study on a cryosurgery apparatus",
author="Shao-zhi ZHANG, Dong-bo WU, Ge YANG, Guang-ming CHEN",
journal="Journal of Zhejiang University Science A",
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pages="128-131",
year="2010",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.A0900071"
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%T Experimental study on a cryosurgery apparatus
%A Shao-zhi ZHANG
%A Dong-bo WU
%A Ge YANG
%A Guang-ming CHEN
%J Journal of Zhejiang University SCIENCE A
%V 11
%N 2
%P 128-131
%@ 1673-565X
%D 2010
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.A0900071

TY - JOUR
T1 - Experimental study on a cryosurgery apparatus
A1 - Shao-zhi ZHANG
A1 - Dong-bo WU
A1 - Ge YANG
A1 - Guang-ming CHEN
J0 - Journal of Zhejiang University Science A
VL - 11
IS - 2
SP - 128
EP - 131
%@ 1673-565X
Y1 - 2010
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.A0900071


Abstract: 
cryosurgery is an effective way of curing many diseases including tumors and cancers. It can be applied using a variety of systems and cryogens. Cheap, convenient, reliable equipment still needs to be developed so that cryotherapy may be accepted by surgeons and hospitals. This paper presents a cryosurgery apparatus that utilizes an auto-cascade refrigeration system. refrigerant mixture R50/R23/R600a was selected as the working fluid. The mixture composition was altered to achieve lower temperatures and higher capacity. The lowest temperature at the cryoprobe could be as low as −100 °C, and 8 W refrigeration capacity could be obtained at −80 °C. An ice ball of 11.6 mm diameter could be formed when the cryoprobe was immersed in a water bath at 37 °C.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article

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