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Autonomous cryosurgical unit for cryo-destruction of oncological neoplasms at temperatures down to -180 °C.

Number: 0021

Author(s) : MOSTYTSKYI A., LYTVYNENKO M., KOKUL S., PEKARYK O.

Summary

In this work, the operational scheme of a cryosurgical unit operating on a closed cycle for medical applications was examined. Cryosurgery is a type of surgical treatment that uses low-temperature exposure to biological tissues to destroy specific pathological areas or organs.
An analysis of existing cryogenic equipment and systems used in modern cryo-medicine for the treatment and prevention of cancer was conducted. The advantages and disadvantages of existing equipment are highlighted. The paper discusses the possibility of using a mixed, environmentally friendly refrigerant based on inert gases and hydrocarbons in a cryogenic unit.
Theoretically, environmentally clean refrigerants with zero ozone depletion potential (ODP) and low global warming potential (GWP) were calculated and practically tested. Four refrigerant mixtures were tested on a prototype setup, achieving target temperatures ranging from −156°C to −176°C, which was the primary objective of this work. Subsequent tests evaluated the mixtures with the lowest temperatures on a refrigeration performance stand.

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Pages: 6 p.

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Details

  • Original title: Autonomous cryosurgical unit for cryo-destruction of oncological neoplasms at temperatures down to -180 °C.
  • Record ID : 30033878
  • Languages: English
  • Subject: Technology
  • Source: Cryogenics 2025. Proceedings of the 18th IIR International Conference on Cryogenics, Prague, Czech Republic, 7-11 April 2025.
  • Publication date: 2025/04/07
  • DOI: http://dx.doi.org/10.18462/iir.cryo.2025.0021

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