NationalInnovative Medical Devices of 2022, ChinaPatent number:ZL201910628744.0
Break through the technical threshold,Domestic initiativeFourth generation nasal tamponade dressing- degradable polyurethanePolyether ethyl carbamate(-R-NH-C(O)-◎-R'-), 95% porosity, high fluidabsorbent capacity(up to 18 times its weight)
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