The invention relates to the technical field of
medical care, in particular to an electroactive antibacterial healing-promoting
catheter and a preparation method thereof.The electroactive antibacterial healing-promoting
catheter comprises a body part used for being inserted into a
human body, wherein the surface of the body part is etched through
plasma to form a
rough surface with a plurality of grooves and pits, an antibacterial healing-promoting layer composed of an
electrode layer A and an
electrode layer B is sputtered on the
rough surface, the distance between the
electrode layer A and the electrode layer B ranges from 0.5 mm to 6.5 mm, the roughness of the
rough surface ranges from 150 nm to 500 nm, the roughness of the antibacterial healing-promoting layer ranges from 20 nm to 250 nm, and the thickness of the antibacterial healing-promoting layer ranges from 10 nm to 500 nm. The
catheter can generate electrochemical
discharge after being in contact with leaked
urine, normal
saline,
tissue fluid or
wound exudate and the like, has responsive
discharge property and has good sterilization and
biological membrane inhibition effects, and the antibacterial healing-promoting layer has relatively good uniformity, does not influence the flexibility, elasticity,
lubricity and the like of the catheter, and the antibacterial healing-promoting layer is firmly combined with the catheter.