TUBULAR DEVICE WITH HYDROPHILIC SURFACE

摘要

The invention relates to a tubular device (other than a Foley balloon catheter for urine drainage purposes) for supplying fluid (gas or liquid) to, or removing fluid from, the body of a patient. According to the invention the tubular device comprises an elongate tubular body having one end for insertion in the body of a patient wherein at least over a portion of its length extending from the insertion end the exposed surface of the body is of a polyurethane and over said length the body is provided with a coating of poly(N-mono hydroxy)propyl methacrylamide) bonded to said polyurethane surface by residues of a di or higher functionality isocyanate compound.