The essential elements of bone marrow puncture needle technology

The purpose of the utility model is to provide a bone marrow puncture needle and bone marrow collection equipment, so that the extraction efficiency of bone marrow is higher.

In order to solve the above technical problems, the embodiments of the present invention provide a bone marrow puncture needle, which includes a needle with a multi-edge cutting edge and a needle body, wherein the side wall of the needle body is provided with a groove for accommodating the guide wire. The groove runs through the entire needle body along the length direction of the needle body.

The embodiment of the present invention also provides a bone marrow collection device, which includes the bone marrow puncture needle as described above.

Compared with the prior art, the embodiment of the present invention is to provide a groove that penetrates the entire needle body on the bone marrow puncture needle, so that the guide wire can pass through the needle body after the bone marrow puncture needle is drilled into the bone tissue. The upper groove enters the target bone tissue. In this way, when the bone marrow puncture needle is withdrawn, the guide wire remains in the established bone hole channel, so that the suction catheter can be easily inserted into the bone hole channel along the guide wire, achieving efficient, rapid, and multiple suction of the target bone marrow tissue. Purpose, to improve the efficiency of bone marrow aspiration.

In addition, the depth and width of the groove are not more than half of the maximum width of the cross section of the needle body.

In addition, the diameter of the needle body is 1-5 mm, and the depth and width of the groove are 0.5-2.5 mm.

In addition, the diameter of the needle body is 2 mm, and the depth and width of the groove are 0.5 mm.

In addition, the groove is a U-shaped groove, which can better match the shape of the guide wire, so that the guide wire can be accurately inserted into the target bone tissue.

In addition, the bone marrow collection device also includes a guide wire and a catheter for aspirating bone marrow. The cross section of the guide wire is round-shaped, and the diameter of the guide wire is less than or equal to the size of the groove; the inner diameter of the catheter is greater than the diameter of the guide wire.

In addition, the catheter has a tube wall and a bottom. The tube wall is provided with a plurality of first holes, and the bottom is provided with a second hole. The diameter of the second hole is larger than the diameter of the guide wire.

In addition, the bone marrow collection equipment also includes an extraction device connected with the catheter, and the bone marrow collection equipment also includes an electric drill for installing the bone marrow puncture needle, so that the bone marrow puncture needle can be inserted into the hard bone to extract the bone marrow. Manually puncturing the bone marrow is time-consuming and laborious, and it saves time and effort to puncture the bone marrow section with a hand electric drill. Thereby reducing the burden on the operator.

In addition, the bone marrow collection equipment also includes an ultrasound guide device, which is used to determine the puncture site, puncture direction, and puncture depth of the bone marrow puncture needle, so that the operator can select the best bone marrow extraction location to avoid accidental damage.

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