A MEDICAL NEEDLE SAFETY DEVICE

摘要

Medical needle safety device comprises a needle base (5) where needle end (23) of a cannula is mounted. The cannula which drills a hole in elastic offset element, is protected by safety sheath (4). At exterior surface of cannula, a raised stop element whose maximum dimension is larger than other portion of cannula diameter is provided. The dimension of stop element (46) of sheath is smaller than maximum dimension of stop element of the cannula.