Temperature-rising-reducing rate controllable cold-hot alternating tumour therapeutical system

Abstract

The present invention relates to a cold-heat alternative oncology therapy system whose temperature-rising and temperature-lowering rate can be controlled. Said system includes the following components: liquid nitrogen transferring pipe, high pressure liquid nitrogen Dewar's container, low-temperature electromagnetic valve, needle cold-heat alternative therapeutic head, gas-liquid separation device, radio frequency generation device, temperature collection device and control system. Said invention makes the low-temperature operating knife and radio frequency thermotherapy be combined together so as to raise killing rate of malignant tumor.

Description

technical field [0001] The invention relates to equipment in the technical field of medical devices, in particular to an alternating cold and heat tumor treatment system using liquid nitrogen as a refrigerant and radio frequency heating as a heat source with controllable heating and cooling rates. Background technique [0002] As the incidence of malignant tumors increases year by year, the threat to human health is increasing. Traditional treatment methods such as surgery, radiotherapy, chemotherapy, etc. damage, and the success rate of treatment still needs to be further improved. With the development of science and technology, especially the advancement of image technology such as nuclear magnetic resonance imaging and ultrasound imaging, minimally invasive surgery such as low-temperature cryosurgery and hyperthermia for tumors has begun to develop more and is becoming more and more popular. Welcome, but they still have their flaws. Existing hypothermic surgery has rela...

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Problems solved by technology

[0003] After searching the existing technical documents, it is found that the patent application number is: 01201762.0, and the name is: "a soaking cold knife device that can promote the rapid heating and melting of frozen tumor tissue", although it can be used to achieve alternating cold and hot treatment, but It is a "soaking cold knife device". "When in use, the freezing head is placed in liquid nitrogen in advance, and it touches the tumor after taking it out." The rewarming of the freezing head is realized by the internal heating element, so both There is no continuous liquid nitrogen flow to achieve continuous alternating cold and heat treatment, and the heat generated by the heating element is only transmitted through heat conduction, and the effective range is not as large as that of radio frequency heating; and this device is only suitable for treating superficial tumors such as skin tumors, and for Tumors located in the human body are not applicable at all and have great limitations

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