[A review on applications of tubular mechanics in medicine]

Medical intervention is to make use of puncture and catheterization technique for the diagnosis and treatment, relying on the guidance of medical imaging equipment. It is also a new medical branch which is independent of internal medicine and surgery. It is officially named the third largest medical technology. Interventional therapy contains blood vessel intervention and non-vessel intervention. The operation of the catheter and thread in the vessel is the key part of vessel intervention. By comparison it is found that the operation of catheter and thread in the blood vessel is similar to that of the string in the wellbore. Tubular mechanics in oil-gas wells is a mature theoretical mechanics system in the field of Petroleum Engineering. In this paper, the tension-torque model of the tubular mechanics in oil-gas wells is introduced, and the operation of catheter in a simulative vessel is mechanically analyzed with the software of mechanical analysis of drill string in directional wells.