Patent ID: 7763142
Filing Date: 2010-07-27
Classification: A61M,Y10T

Abstract:
1. A process for creating an ingrowth preventing indwelling catheter assembly, the ingrowth preventing indwelling catheter assembly having a distal end configured to be placed within a brain ventricle for drainage of cerebrospinal fluid, the process comprising the steps of: forming a length of porous fiber membrane tubing having a porosity of less than 5 micrometers so as to be impermeable to tissue ingrowth and having a drainage or delivery fluid-flow rate appropriate for an intended application; placing a tubular reinforcement member having a plurality of apertures therethrough within the porous tubing; fixing a non-porous tip to a first end of the porous tubing to form the distal end of the ingrowth preventing indwelling catheter assembly, and securing the tubular reinforcement member to the non-porous tip; and attaching a length of non-porous and flexible tubing to a second end of the porous tubing and securing the tubular reinforcement member to the length of non-porous and flexible tubing.