Bone marrow puncture needle

A bone marrow puncture needle, including a puncture needle body, a semicircular angle frame, a sleeve, a fixed plate and an auxiliary plate. The puncture needle body is composed of an outer tube sleeve, a needle core, and a needle handle. A needle core is provided on the needle handle. A fixed card slot; a needle core handle is provided on the top of the needle core; a needle core fixed card core is provided between the needle core handle and the needle core; a dial and an arc-shaped card slot are provided on the semicircular angle frame; the sleeve Threaded socket with the outer sleeve of the puncture needle body; the sleeve is connected with the nut through the shaft; the shaft passes through the arc-shaped slot on the semicircular angle frame; the puncture needle body is connected with the semicircular angle frame through the sleeve; the fixed plate There is a puncture hole; the fixed plate and the auxiliary plate are movably connected. The invention is equipped with a semicircular angle frame, the puncture angle can be observed during puncture, and the risk of puncture is reduced. The length of the needle, especially for patients with hard or loose bones, is easier to grasp the strength, so as to avoid damage to the surrounding tissues of the puncture site.、

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