A coupling liquid for ultrasound devices, preferably high intensity focused ultrasound (HIFU). The coupling liquid comprises a liquid aqueous solution of at least one hydrophilic polymer having an average molecular mass of between 30,000 and 70,000 and at least one alcohol with a carbon chain of 1 to 7 carbon atoms. Also disclosed is a container (10) for an ultrasound coupling liquid having a thin wall.
