| 摘要 |
A sheet or tube of fluororesin material having continuous pores, particularly polytetrafluoroethylene, has a nap raised on at least one surface thereof, and is suitable for prosthetic use as a patch, or an artificial blood vessel. A method of manufacturing such napped fluororesin material comprises impregnating fluororesin material having continuous pores with water, freezing it, raising a nap thereon, and defrosting and dewatering it. |
