The invention relates to a magnetic
resonance compatible puncture needle which comprises an outer needle and an inner needle, wherein the inner needle is embedded in the outer needle, the outer needle is made of pure
titanium, and the inner needle is made of
titanium alloy, the outer needle comprises an outer needle
handle and an outer sleeve needle connected to the outer needle
handle, the inner needle comprises an inner needle
handle and an inner needle core connected to the inner needle, the outer needle handle is provided with a notch, and the outer sleeve needle is provided with a middle hole communicated with the notch, and the outside
diameter of the outer sleeve needle is less than the inside
diameter of the notch; the inner needle handle comprises an outer end part and a needle fixing part connected to the outer end part, the needle fixing part is used for mounting the inner needle core, the outside
diameter of the inner needle core is less than the inside diameter of the middle hole of the outer sleeve needle, the outer end part is abutted with the end part of the outer needle handle; the magnetic
resonance compatible puncture needle also comprises a diamagetism layer arranged on the outer sleeve needle. The magnetic
resonance compatible puncture needle reduces the size of the puncture needle under
magnetic resonance imaging and is convenient for better judging the position of the puncture needle.