Kev tshawb nrhiav npuas yog qhov tseem ceeb hauv kev siv xws li cov twj tso kua mis, hemodialysis, thiab kev saib xyuas cov ntshav. L01 siv tshuab ultrasonic rau kev tshawb nrhiav npuas, uas tuaj yeem txheeb xyuas tau tseeb tias muaj npuas nyob hauv txhua hom kua ntws.