Material and method for treating internal cavities

The thermoreversible hydrogel of 4, wherein:

• the pH-modifying substances are selected from the group consisting of acids, bases and buffer, adipic acid, malic acid, L-arginine, ascorbic acid, aspartic acid, benzenesulphonic acid, benzoic acid, succinic acid, citric acid, ethanesulphonic acid, 2-hydroxyethanesulphonic acid, fumaric acid, gluconie acid, glucuronic acid, glutamic acid, potassium hydrogen tartrate, maleic acid, malonic acid, methanesulphonic acid, toluenesulphonic acid, trometamol, tartaric acid, and any combination thereof;
• and,
• the plasticizers are selected from the group consisting of citric acid derivatives, triethyl citrate, tributyl citrate, acetyl triethyl citrate, phthalic acid derivatives, dimethyl phthalate, diethyl phthalate, dibutyl phthalate, benzoic acid and benzoic esters, other aromatic carboxylic esters, trimellithic esters, aliphatic dicarboxylic esters, dialkyl adipates, sebacic esters, in particular diethyl sebacate, tartaric esters, glycerol monoacetate, glycerol diacetate or glycerol triacetate, polyols, glycerol, 1,2-propanediol, polyethylene glycol of varying chain length, fatty acids and derivatives, glycerol monostearates, acetylated fatty acid glycerides, castor oil and other natural oils, Miglyol, fatty acid alcohols, cetyl alcohol, cetylstearyl alcohol and any combination thereof.

The thermoreversible hydrogel of 8, wherein:

• the pH-modifying substances are selected from the group consisting of acids, bases and buffer, adipic acid, malic acid, L-arginine, ascorbic acid, aspartic acid, benzenesulphonic acid, benzoic acid, succinic acid, citric acid, ethanesulphonic acid, 2-hydroxyethanesulphonic acid, fumaric acid, gluconie acid, glucuronic acid, glutamic acid, potassium hydrogen tartrate, maleic acid, malonic acid, methanesulphonic acid, toluenesulphonic acid, trometamol, tartaric acid, and any combination thereof;
• and,
• the plasticizers are selected from the group consisting of citric acid derivatives, triethyl citrate, tributyl citrate, acetyl triethyl citrate, phthalic acid derivatives, dimethyl phthalate, diethyl phthalate, dibutyl phthalate, benzoic acid and benzoic esters, other aromatic carboxylic esters, trimellithic esters, aliphatic dicarboxylic esters, dialkyl adipates, sebacic esters, in particular diethyl sebacate, tartaric esters, glycerol monoacetate, glycerol diacetate or glycerol triacetate, polyols, glycerol, 1,2-propanediol, polyethylene glycol of varying chain length, fatty acids and derivatives, glycerol monostearates, acetylated fatty acid glycerides, castor oil and other natural oils, Miglyol, fatty acid alcohols, cetyl alcohol, cetylstearyl alcohol and any combination thereof.