The product is a gauze wound bandage imbued with a fine colored pigment powder that changes color depending on the pH of the environment, individually packaged, sterile, with the markings required by law.

Nosocomial infections are those infections that a patient develops during hospitalization. They are also called hospital-acquired infections or healthcare-associated infections. A special type of hospital-acquired infections are surgical site infections or so-called wound infections.

The defense strategy against nosocomial infections includes their prevention and early diagnosis. Early diagnosis of nosocomial infections increases the cure rate.

In the case of wound infections, the use of a bandage that signals the appearance of infection before general signs could be an early diagnostic solution.

Thus, it is known that the presence of an infection causes a change in the pH of the respective environment, therefore it causes the appearance of an acidic environment. The use of bandages imbued with substances that change color when the pH of the environment changes could be an early diagnostic solution that would determine the initiation of treatment.

There are pigments called anthocyanins, which change color depending on the pH.