The invention relates to the technical field of medical
coupling agents, and discloses a medical sterile ultrasonic
coupling agent which comprises the following components: carbomer, a
humectant, a
quaternary ammonium salt
disinfectant, a
preservative, a pH
regulator and
purified water. A preparation method of the medical sterile ultrasonic
coupling agent comprises the following steps: step 1, dispersing the carbomer in part of
purified water, stirring until the carbomer is completely swelled, adding the
preservative and the pH
regulator, and continuously stirring for 20 minutes; step 2, dissolving a
quaternary ammonium salt
disinfectant and a
humectant in the residual
purified water, uniformly mixing, adding into the gel in the step 1, and vacuumizing and stirring for 10 minutes; and step 3, performing
irradiation sterilization after filling to obtain a finished product. Compared with the prior art, the invention has the advantages that: the
quaternary ammonium salt is used for replacing
triclosan, so that
skin irritation and environmental
pollution are avoided, and the safety is high. A solubilizer is not needed, and the production process is simplified. According to the invention, the compatibility problem of quaternary ammonium salt and carbomer is solved through a special process, and the stability and
viscosity of the product are ensured.