One of them is a suture-fixing device for heart operation made by Pyongyang University of Medicine attached to Kim Il Sung University.

It helps ensure quickness and delicacy in operation by properly fixing suture.

A nanoscale gold detector is used in test of immunity from bacteria and virus diseases and cellular and genetic diseases. Its test power is as high as more than 98 percent.

An instrument for diagnosis and treatment of internal diseases by Koryo medicine has already been introduced in some fifty hospitals.