Proof of Concept (Design Validation) in Patient With Hard to Heal Wounds Such as Pressure Ulcer, Diabetic Foot Ulcer and Leg Ulcer, Leia

Inclusion Criteria: * Low to highly exuding chronic wound(wound history \> 2 months) such as Leg Ulcer, Pressure Ulcer Category III to IV or Diabetic Foot Ulcer * Male of female, 18 years and above * Signed Informed Consent Form Exclusion Criteria: * Pregnancy or lactation * Wound size not suitable for the wound dressing size * Known allergy/hypersensitivity to any of the components in the dressing