Effects of the transverse micro-vibration on guide wires for endovascular therapy

The vascular minimally invasive intervention is a new type of medical technology with medical catheter and guide wire as the main surgical equipment which is for remote minimally invasive treatment of vascular disease. It is widely used for its advantages, such as smaller trauma, shorter recovery and less pain. But there are many deficiencies limiting the continued development of vascular intervention surgery: Serious damage of X-ray to the doctor during the surgery; high dependence on the doctor's experience and technique; low surgical efficiency and safety. Through the study and analysis of the interventional operation, the doctors will usually be subjected to the resistance when operating the catheter and the guide wire during the surgery. In some special condition, the suffered resistance would be larger. The improper operation will cause blood vessel damage. In the course of the actual operation, the catheter and the guide wire in the human blood vessels will suffer the viscous resistance from the blood. It affects the operation and efficiency of the doctors, as well as the safety of surgery. At the same time, the research about the viscous resistance of the catheters and the guide wire during the surgery in the field is still in a blank, and there is no research method that can reduce this resistance. In order to solve these problems, this paper has carried on the research on the mechanism of the viscous force of the catheter and the guide wire in surgery, and pioneers a method to supplement the micro-vibration in the proximal end of the guide wire. This method can reduce the viscous force of the catheter and the guide wire exerted by the blood during the push process, improve the surgical safety and the smoothness of the operation.