Sterile medical ultrasonic coupling patch and preparation method thereof

The invention relates to a sterile medical ultrasonic coupling patch and a preparation method thereof. The sterile medical ultrasonic coupling patch is prepared from the following components in percentage by weight: 10%-15% of waterborne polyurethane, 10%-25% of cationic sesbania gum, 4%-8% of propylene glycol alginate, 2%-6% of propylene glycol monooleate, 4%-12% of polyethylene glycol, 2%-8% of sodium pyrrolidone carboxylate, 0.01%-0.05% of a preservative and the balance of deionized water. The sterile medical ultrasonic coupling patch has light stability and thermal stability, the acoustic performance closest to soft tissues of the human body, high ultrasonic diagnosis accuracy and excellent biocompatibility and has no toxicity, allergenicity and stimulation to skin cells and is high in safety. 本发明涉及种无菌医用超声耦合贴片及其制备方法。所述的无菌医用超声耦合贴片由以下重量百分比计的组分组成：水性聚氨酯10～15％、改性田箐胶10～25％、海藻酸丙二醇酯4～8％、丙二醇油酸单酯2～6％、聚乙二醇4～12％、吡咯烷酮羧酸钠2～8％、防腐剂0.01～0.05％、余量为去离子水。本发明提供的超声耦合贴片对光、热均稳定，具有与人体软组织最为接近的声学性能，超声诊断的准确性高，且具有优良的生物相容性，对皮肤细胞无毒性，无致敏