PRECOOLING DEVICE FOR CRYOTHERAPY AND CRYOTHERAPY SYSTEM

WIPO Patent Application WO/2020/133700

A1

Disclosed are a precooling device for cryotherapy and a cryotherapy system. The precooling device comprises an air inlet interface (8), at least three gas through-flow branch paths, a single-stage compression self-cascading refrigeration system assembly (2), and a pressure regulating assembly (1), wherein the single-stage compression self-cascading refrigeration system assembly (2) comprises at least three stages of refrigeration cycle (200), each refrigeration cycle (200) can perform heat exchange with gas flowing through the corresponding gas through-flow branch path so as to precool the gas flowing through the corresponding gas through-flow branch path, the pressure regulating assembly (1) is used for controlling the pressure at a gas outlet end of the pressure regulating assembly (1), and the pressure at the gas outlet end of the pressure regulating assembly (1) is related to the current precooled gas through-flow branch path.

JPH07208818	FREEZING DEVICE
JP3119946	[Title of Invention] Combination lift / piston / axial port / unloader device for screw / compressor
WO/2016/029635	COLD AND HEAT SOURCE COMPLEMENTATION AIR-COOLED TYPE MULTIFUNCTIONAL CENTRAL AIR CONDITIONER

WU YINLONG (CN)
XU BINKAI (CN)
YANG CHI (CN)
ZHANG RUI (CN)
CHANG KAIQIANG (CN)

PCT/CN2019/077260

July 02, 2020

March 07, 2019

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ACCU TARGET MEDIPHARMA SHANGHAI CO LTD (CN)

F25B7/00; A61B18/02; F25B41/04; F25B43/00

CN109405327A	2019-03-01
CN106420039A	2017-02-22
CN1440727A	2003-09-10
CN107951558A	2018-04-24
US20140276706A1	2014-09-18
CN107951558A	2018-04-24
CN106420039A	2017-02-22

See also references of EP 3872417A4

DEBUND LAW OFFICES (CN)

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