A safety IV catheter assembly is disclosed which includes a catheter assembly (10), a needle assembly (18) and a needle guard assembly (24). The needle guard assembly includes a needle guard (26), a biasing member (28) and a bushing (30). The bushing is slidably positioned about the needle and includes an inner diameter which is smaller than an enlarged diameter portion of the needle such that the needle cannot be withdrawn through the bore (30a) of the bushing.