High-low-temperature composite ablation surgical system

Abstract

The invention relates to a high-low-temperature composite ablation surgical system, relates to the technical field of cryogenic low-temperature treatment, and is used to improve the safety and effectiveness of the treatment. The high-low-temperature composite ablation surgical system includes a host unit and a cold and hot ablation needle connected to the host unit, and the host unit includes a cold working medium supply system, a hot working medium supply system and a working medium distribution system; and the working medium distribution system can separately control the cold working mediumsupply system to deliver a cold working medium to the hot and cold ablation needle and control the hot working medium supply system to deliver a hot working medium to the cold and hot ablation needle,so that quick rewarming can be performed in a treatment area after the low-temperature treatment is completed, and a basis is provided for improving the safety, economy and convenience of surgery.

Description

Technical field [0001] The present invention relates to the technical field of cryotherapy, in particular to a combined high and low temperature ablation operation system. Background technique [0002] At present, cryotherapy technology is becoming the main method of interventional tumor treatment. This technology is a pure physical therapy. Compared with radiotherapy and chemotherapy, it has the advantages of precise therapeutic effect, no spread of tumor cells, minimally invasive and painless treatment, fast recovery, and no damage to normal tissues. Clinical data shows that the immune function of patients treated with this technology is significantly improved compared with before treatment, and the long-term survival rate is significantly improved. It has significant advantages in the treatment of solid tumors such as lung cancer, liver cancer, breast cancer, kidney cancer, and prostate cancer. [0003] The mechanism of cryotherapy is as follows: [0004] 1. Ice crystal growth ...

AI Technical Summary

Problems solved by technology

[0004] 1. Ice crystal growth and cell dehydration cause mechanical damage to tumor cells

[0005] 2. Blood embolism causes hypoxic death of tumor tissue

[0006] 3. Reversible damage, causing apoptosis

It is not difficult to find that the above-mentioned low-temperature treatment equipment only has one refrigeration mechanism, and the working temperature area is limited by the refrigeration principle and the characteristics of the working fluid itself, so it can only provide single-function treatment

In addition, due to the limitation of its working mechanism, the working pressure of this kind of cryogenic treatment equipment is relatively high (12-22MPa), and there are safety hazards in the operation, and the noise is relatively large; the working medium used is relatively expensive (high-purity argon and high-purity helium) , in which helium is one of the indispensable rare strategic materials for the development of national defense industry and high-tech industry) is not easy to obtain and cannot be widely promoted; in addition, it needs to connect high-pressure argon gas cylinders and helium gas cylinders during the operation process, and the space is limited It is not convenient to use in the operating room

So far, there is no full-featured wide temperature range high and low temperature treatment equipment at home and abroad.

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