Novel bone marrow puncture needle

Abstract

The invention discloses a novel bone marrow puncture needle which comprises a needle body and a needle core. The novel bone marrow puncture needle is characterized in that a handle is arranged on the needle body, wherein the front end of the needle body is a flat end, wall holes are formed in the side wall of the front end of the needle body, a needle core tip is arranged at the front end of the needle core; when the needle core is completely inserted to the needle body, the needle core tip is exposed outside the front end of the needle body; the needle core tip is in the shape of a rectangular pyramid; the needle core tip exceeds the front end of the needle body by 4 mm; the six wall holes are asymmetrically distributed in a position with a distance within 10mm from the front end of the needle body, and the diameters of the wall holes are 1.2mm. The novel bone marrow puncture needle is relatively convenient to apply force during operation, so that the working efficiency is improved and the pains of a patient are relieved. Due to the existence of the needle core tip, cortex of bone is not prone to enter the needle head to block a needle cavity, so that the success rate of the puncture is guaranteed; wall holes formed in the front end of the needle body can be used for extracting bone marrows on different positions, and therefore, the novel bone marrow puncture needle is beneficial to detecting out lesions.

Description

technical field [0001] The invention relates to a novel bone marrow puncture needle. Background technique [0002] In the prior art, the front end of the needle body of the bone marrow puncture needle is slope-shaped, and the needle core is the same length as the needle body, and the front end of the needle core is also in the same shape as the front end of the needle body. The needle enters into the needle body to block the needle cavity, resulting in the inability to aspirate bone marrow, resulting in puncture failure. Even if the puncture is successful in aspiration of bone marrow, the range of extraction of bone marrow is limited to one point, which is not conducive to the detection of lesions, and due to the existing bone marrow There is no handle on the puncture needle, and it is very inconvenient to hold it, which also brings inconvenience to the actual operation. Contents of the invention [0003] In order to solve the above-mentioned existing shortcomings, the m...

AI Technical Summary

Problems solved by technology

[0002] In the prior art, the front end of the needle body of the bone marrow puncture needle is slope-shaped, and the needle core is the same length as the needle body, and the front end of the needle core is also in the same shape as the front end of the needle body. The needle enters into the needle body to block the needle cavity, resulting in the inability to aspirate bone marrow, resulting in puncture failure. Even if the puncture is successful in aspiration of bone marrow, the range of extraction of bone marrow is limited to one point, which is not conducive to the detection of lesions, and due to the existing bone marrow There is no handle on the puncture needle, it is very inconvenient to hold it, and it also brings inconvenience to the actual operation

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