IIR document
Devices for the in-vitro-measurement of the cooling-effect of cryosurgical probes.
Author(s) : SPEETZEN R., PROSKE M., HESCHEL I., RAU G.
Summary
Two devices are presented for the in-vitro measurement of the heat flux as well as the ice front and the temperature field around a cryosurgical probe working under controlled thermal boundary conditions. The heat flux is measured with a compensation heating device in a stirred water volume of controlled temperature. With an integration method the mean power (heat flux) removable by the cryoprobe is calculated from the transient compensation heat registered by a computer. The transient ice front position around the cryoprobe tip and the corresponding temperature field are measured in a metallic sphere of controlled surface temperature filled with a special test medium. The temperature field is measured by thermocouples placed radially at various distances from the probe tip. The ice front position is determined by an ultrasound signal.
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Details
- Original title: Devices for the in-vitro-measurement of the cooling-effect of cryosurgical probes.
- Record ID : 1996-1213
- Languages: English
- Source: For a Better Quality of Life. 19th International Congress of Refrigeration.
- Publication date: 1995/08/20
- Document available for consultation in the library of the IIR headquarters only.
Links
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Indexing
- Themes: The influence of refrigeration on cells, tissues and organs
- Keywords: Cryoprobe; Measurement; Temperature; Cooling; Cryosurgery
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