Multi-layered wound dressing containing an hydrocolloid and activated carbon

A wound dressing for therapeutic wound care,

• wherein the wound dressing comprises a multilayer structure, wherein the multilayer structure comprises:
• (i) at least one layer comprising at least one hydrocolloid, wherein the hydrocolloid of the hydrocolloid-comprising layer is selected from collagen, and wherein the layer comprising hydrocolioid comprises a collagen foam, and
• (ii) at least one layer comprising activated carbon, wherein the activated carbon-comprising layer comprises a spherical activated carbon, wherein the activated carbon of the activated carbon-comprising layer is arranged between a first textile fabric and a second textile fabric, and wherein the activated carbon of the activated carbon-comprising layer has a micropore volume content formed of micropores having pore diameters of 20 Å of at least 60%, based on the total pore volume of the activated carbon,
• wherein the activated carbon-comprising layer comprises a spherical activated carbon with absolute particle sizes in the range from 0.01 to 3 mm and with average particle sizes, determined as per standard method according to ASTM D2862-97/04, in the range from 0.05 to 2.5 mm, and
• wherein the activated carbon of the activated carbon-comprising layer is characterized by the following properties;
• a micropore volume formed of micropores with pore diameters of <20 Å in the range from 0.40 cm3/g to 2 cm3/g;
• a specific micropore surface area content formed of pores with pore diameters of <20 Å of at least 50%, based on the specific total BET surface area of the activated carbon;
• a specific BET surface area in the range from 500 to 3,000 m2/g;
• a total pore volume in the range from 0.1 to 4 cm3/g;
• a burst-strength, determined as the weight loading capacity per activated carbon particle, in the range from 10 to 50 Newtons;
• and
• a fractal dimension of the open porosity of at least 2.3.