"The device will lengthen the lives of many people and cut the number of lethal cancer cases," Kirill Belik said.
"At present, the most effective way to treat tumours is surgery, while chemotherapy and other forms of treatment are considered additional methods," he said.
He said that, at present, between 10 percent and 15 percent of patients with stomach cancer live for more than five years after a surgery.
"This is connected with the fact that surgeons removing damaged tissue are often unable to accurately define the affected areas, frequently concealed within healthy organs," Belik explained.
Scientists from three different medical institutes worked on the device for 15 years. Testing is due to begin in the near future, Belik said.