1results about How to "Reduce retraction" patented technology

This invention provides a cutting device and a cutting system. The cutting device includes an expandable structure having a radially expanded state and a radially contracted state, for fitting over the balloon of a balloon catheter. The expandable structure includes a cutting portion and a flexible portion along its axial direction, the flexible portion being connected to the axial end of the cutting portion. The cutting device and cutting system of this invention can reduce the probability of disordered tearing of the vascular intima by the balloon, thereby reducing the probability of flow-limiting dissection.