Patent ID: 8328838

Claim:
A needle assembly for use in oriental acupuncture, the needle assembly comprising: a hollow tubular rod member; a pin member movably installed in the rod member and capable of being inserted into a person's skin; and a reuse preventing unit preventing the pin member, which is protruded from a distal end of the hollow tubular rod member and inserted into the skin, from being protruded from the distal end of the hollow tubular rod member and from being inserted into the skin again after the pin is withdrawn from the skin, wherein the hollow tubular rod member comprises: a tube part having a long through-hole; and an accommodating part surrounding an outer circumferential surface of the tube part and having an accommodating space defined by an inner circumferential surface of the accommodating part and a surface of an end of the tube part, wherein the reuse preventing unit comprises an insertion block disposed in the accommodating space, wherein the insertion block comprises: an insertion part having a hole into which the pin member is inserted; and a central part extending from the insertion part, and adapted to be deviated from an axis which the pin member follows in the state where the pin member is inserted into the hole of the insertion part and to be aligned with the axis when the pin member is removed from the hole of the insertion part.