According to the international biological evaluation tests of medical macromolecular materials,we have performed a systemic biological evaluation of domestic medical PES. The results show:there is no toxicity, no reaction of pyrogen or sensitization,and no irritation to the skin. The hemolysis rate in vitro is less than 5%.PES may promote the growth of cell.After being embedded under skin,as time elapsed,the fibrous cyst which surrounded the embedded PES became thinner,and the infective reaction almost disa...
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