Analysis:
A. The principle of argon helium knife destroys tumors:
The argon helium knife is not a scalpel in the true sense of the word, but is a new type of instrument for the treatment of tumors at ultra-low temperatures. It is shaped like a puncture needle, which can be as thin as 2 millimeters, and the argon helium knife is hollow, which can circulate high-pressure room temperature argon gas (cold medium) and high-pressure room temperature helium gas (hot medium). Most of the surgery with local anesthesia-based, in the CT or B ultrasound positioning guidance will be accurately puncture the argon knife into the tumor body, and then first start the argon, can be registered argon in the tip of the rapid expansion of the knife to produce refrigeration effect, within 15 seconds will be the lesion tissue frozen to minus 140 ℃ ~ 170 ℃. After 15~20 minutes, turn off the argon, and then start the helium, and helium in the tip of the rapid expansion, rapid heating in the ultra-low temperature state of the diseased tissue, can make the temperature of the diseased tissue from -140 ℃ rose to zero 20 ℃ ~ 40 ℃ so as to carry out rapid thermal therapy. It lasts for 3~5 minutes and then repeat the treatment once more. This kind of heat and cold reversal therapy is particularly thorough in destroying the diseased tissue. The speed, time and temperature of cooling and heating, and the size and shape of the destroyed area can be monitored in real time by ultrasound or CT and precisely set and controlled by computer. More importantly, because the Ar-He knife cooling or heating is limited to the tip of the knife, the shaft does not cause hot or cold damage to the tissues in the path of the puncture. The Ar-He knife is currently the only instrument that can perform minimally invasive percutaneous hot and cold therapy.
Second, the argon helium knife surgical characteristics
Compared with traditional surgical methods, argon helium knife treatment has unique advantages:
1, minimally invasive - can be treated without incision, percutaneous or transcavitary treatment, postoperative pain is light.
℃. After 15~20 minutes, close the argon gas, then start the helium gas, and helium in the tip of the rapid expansion, rapid heating in the ultra-low temperature state of the lesion tissue, can make the lesion tissue temperature from -140 ℃ rise to zero on the 20 ℃ ~ 40 ℃ so as to carry out rapid thermal therapy. It lasts for 3~5 minutes and then repeat the treatment once more. This kind of heat and cold reversal therapy is particularly thorough in destroying the diseased tissue. The speed, time and temperature of cooling and heating, and the size and shape of the destroyed area can be monitored in real time by ultrasound or CT and precisely set and controlled by computer. More importantly, because the Ar-He knife cooling or heating is limited to the tip of the knife, the shaft does not cause hot or cold damage to the tissues in the path of the puncture. The Ar-He knife is currently the only instrument that can perform minimally invasive percutaneous hot and cold therapy.
Second, the argon helium knife surgical characteristics
Compared with the traditional surgical methods, argon helium knife treatment has unique advantages:
1, minimally invasive - can be without incision, percutaneous or transcavitary treatment, postoperative pain is light.
2. Fast effect - after surgery, all tumor cells can be inactivated, and physical symptoms can be alleviated after one day. It can have the same effect as surgery.
3.