Medical ultrasonic coupling agent and preparation method thereof

The invention provides a medical ultrasonic coupling agent and belongs to the technical field of reagents for medical tests. The ultrasonic coupling agent is prepared from raw materials as follows: povidone iodine, oleic alcohol polyoxyethylene ether, konjac glucomannan, aloe gel, Chinese angelica essential oil, African marigold essential oil, heartleaf houttuynia herb essential oil, polyethylene glycol, potassium iodide, carbomer, triethanolamine, a Chinese angelica aqueous extract, a dandelion aqueous extract, a notoginseng aqueous extract, a liquorice aqueous extract and purified water. The ultrasonic coupling agent is free of cytotoxicity, irritation and sensitization to skin, free of bubbles, good in heat stability and good in biocompatibility, and cross infection during clinical ultrasonic tests is avoided; the ultrasonic coupling agent is good in lubrication property and easy to expand, has sterilization and anti-inflammatory functions, can soften, moisten and smoothen the skin and has effects of promoting blood circulation, removing blood stasis, relieving pain and removing swellings; the ultrasonic coupling agent has a good coupling function and is significant in transmission effect and clear in ultrasonic imaging.