Nuclear magnetic resonance compatible cold-thermal therapy system

Abstract

The invention discloses a nuclear magnetic resonance compatible cold-thermal therapy system, which comprises a cold therapy module, a thermal therapy module, a heat insulated cold-thermal knife, a temperature sensor and a control module. The cold therapy module and the thermal therapy module are coordinated through a control module to work alternatively, the control module is used for collecting the temperature of focuses during a cold therapy process and the gas pressure in a circuit as well as controlling the flow of gas or liquid in the circuit, and the control module is further used for collecting the temperature of focuses during a thermal therapy process and controlling the heating power. According to a nuclear magnetic resonance cold-thermal therapy system, the growth and melting situations of an ice ball can be monitored in real time, and thus tumour cells can be accurately and rapidly killed.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a nuclear magnetic resonance compatible cold and heat therapy system. Background technique [0002] Tumor is one of the diseases with the highest mortality rate in the world, which seriously threatens human life. However, 70% to 80% of patients are diagnosed at an advanced stage and have lost the opportunity for surgical treatment. However, even with surgical treatment, the probability of postoperative recurrence and metastasis is still as high as 50% to 70%, and the overall cure rate is less than 10%. . Therefore, it is very important to kill tumor cells accurately, quickly and cleanly. [0003] Traditional tumor treatment methods usually include surgical resection, radiotherapy, and chemotherapy. Among them, surgical treatment has high risks, especially for sensitive tumors, such as brain tumors, which are highly dangerous and have a low success rate. Moreover, the o...

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Problems solved by technology

However, 70% to 80% of patients are diagnosed at an advanced stage and have lost the opportunity for surgical treatment. However, even with surgical treatment, the probability of postoperative recurrence and metastasis is still as high as 50% to 70%, and the overall cure rate is less than 10%.

[0003] Traditional tumor treatment methods usually include surgical resection, radiotherapy, and chemotherapy. Among them, surgical treatment has high risks, especially for tumors with sensitive sites, such as brain tumors, which are highly dangerous and have a low success rate.

Moreover, the operation has a large trauma to the human body, which reduces the patient's immunity and disease resistance, and is prone to a series of surgical complications; while radiotherapy and chemotherapy kill cancer cells, they also destroy normal cells and immune (resistance) cells. ) cells together, although radiotherapy and chemotherapy can reduce the burden of tumor cells locally or throughout the body, but it cannot eradicate tumor cell tissue, easy to transfer, relapse, systemic side effects are large, nausea, vomiting, hair loss, loss of appetite can easily occur Symptoms, such as immune function damage, aggravate the patient's condition, and cause a heavy blow to the physical and mental health of cancer patients, especially those with advanced cancer, whose physical health often cannot tolerate the huge side effects of chemotherapy, so many advanced patients are not suitable for it. Chemotherapy treatment, especially for patients with advanced tumors or frail patients, the blind use of chemotherapy and radiotherapy will not only lead to rapid deterioration of the disease, but also accelerate the death of the patient

[0004] Although the general-purpose argon-helium knife can achieve the effect of freezing and hyperthermia in treating tumors, the principle of hyperthermia is that heat is generated when helium gas is released rapidly at the needle tip, and the recovery and temperature rise are rapid, but its hyperthermia can reach the highest level. The temperature is limited. Some data show that the body temperature of the traditional argon-helium knife can only reach between 20°C and 30°C. The temperature is 42°C, and the heating duration needs to be more than half an hour; the higher the temperature, the shorter the time required to kill cancer cells. Therefore, the current general-purpose argon-helium knife often cannot kill cancer cells or other lesion areas The required temperature cannot achieve the effect of hyperthermia

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