Guide wire assembly for surgical catheter for insertion in blood vessel in human body has control wire inside hollow body and has silicone rubber tip containing spheres transparent and opaque to X-rays

摘要

The guide wire assembly (101) for the surgical catheter has a control wire (111) inside a hollow shaft (108) with a tapered distal end (109). The assembly has a silicone rubber tip (115) at its distal end. There is a flat spring blade (112) at the distal end of the control wire, with a catch (113) on one side arranged so that pulling on the control wire causes the spring to bend. There is a cap (107) on the end of the silicone rubber tip. Small spheres are embedded in the silicone rubber tip on either side of the spring blade in bands transparent (103) and opaque (102) to X-rays.