Catheter having denatured part for contact with body

摘要

It is an object of the present invention to provide a catheter, whereby a tunnel infection route is closed such that infection can be prevented, by improving adhesiveness between a medical catheter and a biologically-derived adhesive (fibrin adhesive), cells, or biological tissue. The present invention provides a medical catheter which is composed of material selected from the group consisting of silicone, polyurethane, polypropylene and polytetrafluoroethylene (PTFE), at least a portion of the surface of which is modified by plasma ion implantation.

主权项

1. A medical catheter set that comprises:
(a) a medical catheter which is composed of material selected from the group consisting of silicone, polyurethane, polypropylene and polytetrafluoroethylene (PTFE), at least a portion of the surface of which is modified by plasma ion implantation; wherein the plasma ion pressure during treatment is 1.0×10−1 to 1.0×10−4 torr, the treatment time of plasma ion implantation is 1 minute to 3 hours, and a negative voltage of 0 to −10.0 kV is applied during plasma ion implantation; and wherein the medical catheter has an improved adhesiveness to fibrin adhesive; and (b) a fibrin adhesive, and wherein the fibrin adhesive improves fibrin adhesion caused by an increase in carbon proportion at the surface and increase in surface area.