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Integrated cryoablation device

A technology of equipment and cryotube, applied in the field of integrated cryoablation equipment, can solve the problems of complicated equipment operation, inconvenient use, complicated system structure, etc., and achieve the effect of improving work efficiency, simplifying equipment and convenient operation.

Active Publication Date: 2019-01-18
CRYOFOCUS MEDTECH (SHANGHAI) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the limited capacity of the external air source, it may need to be replaced frequently during the cryoablation operation, and the air source device makes the operation of the equipment cumbersome, causing inconvenience in use, and the shape of the equipment is slightly clumsy. Therefore, it is important to use or optimize the air source device rationally. The bottleneck of the current technology is also a problem that needs to be solved urgently
[0003] The prior art discloses a cryoablation system that does not require a gas source. This system generally uses electric heating to pressurize the liquid refrigerant to make the output medium reach the working pressure. For example, Chinese patent 201710027827.5 uses liquid refrigerant to pressurize and adjust Output the pressure value, convert the working fluid into refrigerant through the cooling module and input it into the freezing unit, so as to perform cryoablation, but the structure of the system is complex, and the working efficiency and safety factor are low

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] An integrated cryoablation device, such as figure 1As shown, it includes a gas generation unit 1, a gas delivery unit 2, a connection unit 3, and a cryoablation unit 4. The gas delivery unit 2 communicates with the cryoablation unit 4 through the connection unit 3, so as to realize the treatment of the target site. Cryoablation, where:

[0037] The gas generating unit 1 includes a refrigerant storage tank 11, a refrigerant 12 accommodated in the refrigerant storage tank 11, a pressurization device 13, a delivery pipe 14 and a second heater 15, one end of the delivery pipe 14 Immersed in the refrigerant 12 in the refrigerant storage tank 11, the other end of the delivery pipe 14 communicates with the gas delivery unit 2, the booster device 13 is arranged on the delivery pipe 14, Its two ends are respectively in sealing communication with the delivery pipe 14; the second heater 15 is arranged on the delivery pipe 14 on the input side of the booster device 13, and the sec...

Embodiment 2

[0044] Such as image 3 As shown, an integrated cryoablation device includes a gas generation unit 1, a gas delivery unit 2, a connection unit 3 and a cryoablation unit 4, and the gas delivery unit 2 is connected to the cryoablation unit 4 through the connection unit 3 connected to achieve cryoablation of the target site, where:

[0045] The gas generating unit 1 includes a refrigerant storage tank 11, a refrigerant 12 accommodated in the refrigerant storage tank 11, a pressurizing device 13, a delivery pipe 14, a first control valve 17 and a second heater 15. One end of the delivery pipe 14 is immersed in the refrigerant 12 in the refrigerant storage tank 11, the other end of the delivery pipe 14 communicates with the gas delivery unit 2, and the first control valve 17 is set at On the delivery pipe 14 at the entrance of the refrigerant storage tank 11, one end thereof is in sealing connection with the output port of the delivery pipe 14 extending into the refrigerant storag...

Embodiment 3

[0051] The difference between this embodiment and the second embodiment is that an air storage tank 16 and a second control valve 18 are arranged on the delivery pipe 14 . Such as Figure 4 As shown, the integrated cryoablation device includes a gas generation unit 1, a gas delivery unit 2, a connection unit 3 and a cryoablation unit 4, the gas delivery unit 2 communicates with the cryoablation unit 4 through the connection unit 3, To achieve cryoablation of the target site, wherein:

[0052] The gas generating unit 1 includes a refrigerant storage tank 11, a refrigerant 12 accommodated in the refrigerant storage tank 11, a pressurizing device 13, a delivery pipe 14, a second heater 15, an air storage tank 16, a first Control valve 17 and second control valve 18; one end of the delivery pipe 14 is immersed in the refrigerant 12 in the refrigerant storage tank 11, and the other end of the delivery pipe 14 communicates with the gas delivery unit 2 The pressurization device 13 ...

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PUM

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Abstract

The invention belongs to the field of cryoablation, and relates to an integrated cryoablation device. The device includes a gas generating unit, a gas delivery unit, a connection unit and a cryoablation unit. The gas delivery unit is communicated with the cryoablation unit through the connection unit to achieve freeze ablation of a target site, wherein the gas generation unit includes a refrigerant containing tank. A refrigerant contained in the refrigerant containing tank, a pressurizing device, a delivery pipe, and a second heater. The gas delivery unit comprises a refrigeration passage, arewarming passage, an inlet pipe and a return pipe. The refrigeration passage comprises a refrigeration control valve. A cold source switching device and a refrigeration pipeline, the rewarming passage comprises a rewarming control valve, a first heater and a rewarming pipeline, and the refrigeration passage is arranged in parallel with the rewarming passage. The equipment does not need an external air source, thus reducing the operation process, improving efficiency and reducing the use cost. And the equipment is more compact and beautiful.

Description

technical field [0001] The invention relates to the field of cryoablation, in particular to an integrated cryoablation device. Background technique [0002] Cryosurgery treatment is the use of ultra-low temperature and the designed complex system to cause irreversible damage or necrosis of cells in the lesion tissue, so as to achieve the purpose of treatment. It is the earliest technology to ablate lesion tissue in human history. At present, there are two mainstream cryoablation systems on the market: one is the direct vaporization refrigeration system of liquid refrigerant, which absorbs a large amount of heat through the vaporization of low-temperature liquid refrigerant, and forms an ultra-low temperature around the freezing area; the other is high-pressure gaseous refrigerant The throttling refrigeration system applies the Joule-Thomson principle, such as the argon-helium refrigeration system, which generates low temperature through the throttling effect of argon, and us...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B18/02
CPCA61B18/02
Inventor 刁月鹏李攀赵奎文姚佳陈
Owner CRYOFOCUS MEDTECH (SHANGHAI) CO LTD