Rotary bone marrow puncture needle

The rotation type bone marrow puncture needle in the field of medical apparatus and instruments, including the combination and the needle, needle core needle and end is equipped with screw thread the needle fixed axial phase, the needle through the Settings in the center of the wing of the handle, the needle core is set in the needle core seat, the center of the needle core seat fixed on a rotating seat, rotator peripheral symmetry is equipped with two convex block, handle is equipped with the capacity of rotator openings, openings on both sides The edge of the needle is respectively provided with a circumferential groove matched with the convex block, and the needle core is extended into the end of the needle tube through the needle tube seat in axial direction. When the bump is stuck into the circumferential groove, the needle core and the needle tube are relatively fixed in the axial direction, and the bone marrow puncture can be carried out conveniently. When the convex block exits the circumferential groove, the needle tube and the needle core can be separated, and the needle core can be taken out and connected with the suction device through the thread on the needle tube holder to extract bone marrow or injection liquid. The utility model can make the needle core and needle tube be fixed well during puncture, puncture is more convenient, and bone marrow puncture can be carried out better.

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