A needle guard for use in a medical device, in particular for use in a catheter device, including a base portion having a needle passage extending in an axial direction from a proximal side of the base portion through the base portion to a distal side of the base portion wherein a needle shaft having a principle outer profile can be movably arranged in the needle passage first and second arms extending substantially in the axial direction from the distal side of the base portion, wherein the first arm has a distal region and a proximal region and a distal wall transversely arranged at the distal region of the first arm. A catheter apparatus including the described needle guard and a needle.
