Plasma On Chronic Wounds for Epidermal Regeneration

Inclusion Criteria: Inclusion criteria are divided into patient-specific and wound-specific criteria. Patient Criteria: * Patient must be at least 18 years old (legal age) and legally competent * The patient has at least one diagnosed chronic (existing for at least 8 weeks), non-healing wound due to a UCA or UCV on the lower leg, below the knee * There is a signed consent form dated by the patient's own hand Wound Criteria: * In case of multiple wounds, the largest wound by area will be included in the study if it meets all inclusion criteria and no exclusion criteria and is suitable for use of the investigational product. The target wound is at least 2 cm away from the other wound(s) * The wound was diagnosed - at the time of planned inclusion - more than 8 weeks ago and classified as a chronic wound * The initial wound area is 5 cm²-100 cm2 * The wound can be enclosed completely by the plasma applicator (10 cm x 10 cm) * The wound is not undermined * The wound is located on the lower leg Exclusion Criteria: The exclusion criteria are divided into patient-specific and wound-specific criteria. Patient Criteria: * The patient is younger than 18 years and/or lacks legal capacity * The patient has already participated in this study * The patient is already participating in another interventional study * Pregnant or breastfeeding patients * The patient has an implanted pacemaker, defibrillator or other active implants * The patient has a light/sun allergy * The patient h…