US 12,419,677 B2
High and low temperature composite ablation surgery system
Fuliang Luo, Beijing (CN); Cuihu Liu, Beijing (CN); Bowei Chen, Beijing (CN); Wensheng Wei, Beijing (CN); Jian Xiao, Beijing (CN); and Jingjing Yang, Beijing (CN)
Assigned to HYGEA MEDICAL TECHNOLOGY CO., LTD., Beijing (CN)
Appl. No. 17/799,471
Filed by HYGEA MEDICAL TECHNOLOGY CO., LTD., Beijing (CN)
PCT Filed Dec. 13, 2019, PCT No. PCT/CN2019/125018
§ 371(c)(1), (2) Date Aug. 12, 2022,
PCT Pub. No. WO2021/109206, PCT Pub. Date Jun. 10, 2021.
Claims priority of application No. 201911229554.8 (CN), filed on Dec. 4, 2019.
Prior Publication US 2023/0338076 A1, Oct. 26, 2023
Int. Cl. A61B 18/02 (2006.01); A61B 18/04 (2006.01); A61B 18/00 (2006.01)
CPC A61B 18/02 (2013.01) [A61B 18/04 (2013.01); A61B 2018/00577 (2013.01); A61B 2018/0293 (2013.01); A61B 2018/046 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A high and low temperature composite ablation surgery system, comprising a main unit (100) and a cryogenic-thermal ablation probe (200) connected to the main unit (100), wherein the cryogenic-thermal ablation probe (200) is configured to perform therapy on a focus portion of a patient; and
the main unit (100) comprises:
a cold working medium supply system (300), which is configured to deliver a cold working medium to the cryogenic-thermal ablation probe (200);
a hot working medium supply system (400), which is configured to deliver a hot working medium to the cryogenic-thermal ablation probe (200);
a working medium distribution system (500), which is connected to the cold working medium supply system (300) and the hot working medium supply system (400) respectively, and is configured to control the cold working medium supply system (300) to deliver the cold working medium to the cryogenic-thermal ablation probe (200) or control the hot working medium supply system (400) to deliver the hot working medium to the cryogenic-thermal ablation probe (200),
a recycling system (600), which is connected to a discharging port of the cryogenic-thermal ablation probe (200), the cold working medium supply system (300), and the hot working medium supply system (400) respectively; and
an electrical control system (700) comprising a computer control system;
wherein the hot working medium supply system (400) comprises a hot working medium automatic perfusion system (410) and a hot working medium pressure control system (420),
the hot working medium automatic perfusion system (410) comprising hot working medium storage tank (411),
the hot working medium pressure control system (420) comprising a hot tank (421) for bearing the hot working medium, wherein the hot tank (421) is configured to deliver the hot working medium under pressure to the cryogenic-thermal ablation probe (200),
wherein the hot working medium storage tank (411) and the hot tank (421) are connected by a pipeline, so as to deliver the hot working medium in the hot working medium storage tank (411) to the hot tank (421),
wherein the hot tank (421) is provided with a heating device, wherein the hot tank (421) is heated by the heating device, so that the hot working medium in the hot tank (421) generates vapor, so that the pressure is increased,
wherein the hot tank (421) is connected to the recycling system (600) by pipeline, wherein a safety valve (425), a pressure sensor (426), a pressure gauge (427), and a manually operated valve (428) are provided sequentially in series on the pipeline, wherein the manually operated valve (428) and a gas releasing valve (429) are connected in parallel,
wherein the pressure sensor (426) collects signals of pressure in the hot tank (421), and the computer control system is in communication with the pressure sensors (426) to monitor the pressure in the hot tank (421) in real time, wherein the gas releasing valve (429) is opened when the pressure in the hot tank (421) exceeds a working pressure.