| http://www.w3.org/ns/prov#value | - Finally, the cold heat transfer element must be limited to the tip or end region of thecatheter, in order to prevent the damaging of tissue other than the target tissue.It is an object of the present invention to provide a method and apparatus for precooling a primary loop fluid mixture with a secondary loop Joule-Thomson refrigeration cycle and then using the primary loop fluid mixture in a minia
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