Bone marrow puncture needle

Abstract

The invention provides a bone marrow puncture needle, which comprises a needle sleeve, a needle core and a limiting sleeve, wherein a puncture part is arranged at the head end of the needle core; matched first connection part and second connection part are arranged on the needle core and the needle sleeve respectively; the needle core and the needle sleeve are connected with each other through the first connection part and the second connection part along the length direction of the needle core; the needle sleeve sleeves the outside of the needle core and the puncture part is exposed; the limiting sleeve comprises a through hole which corresponds to the needle core in size along the longitudinal direction; a groove which is communicated with the through hole is formed in the outer surface of the limiting part along the longitudinal direction; the limiting sleeve sleeves the outside of the needle core through the groove and the through hole; two ends of the limiting sleeve are propped against the needle sleeve and the needle core respectively; and the puncture part moves back and forth along the length direction of the needle core and is accommodated into the needle sleeve. According to the bone marrow puncture needle, the limiting sleeve can be installed without taking out the needle core after puncture is ended, so that the puncture sampling time is shortened; and deviation in the puncture direction due to the fact that the needle core is taken out and is inserted again after the limiting sleeve is installed is also avoided.

Description

technical field [0001] The invention relates to a puncture needle, in particular to a bone marrow puncture needle. Background technique [0002] With the continuous improvement of people's living standards, more and more tumors occur in the human body. In the process of clinical diagnosis and treatment, when the nature of tumors in some tissues is unknown, biopsy puncture techniques are often used to obtain suspicious tissues for pathological characterization and further treatment. Best way. [0003] Puncture examination is a very important invasive diagnosis and treatment technology in the current clinical diagnosis and treatment process. Although it will bring trauma to patients, the importance of examination to clinical diagnosis and treatment is undoubted, so it is important to minimize the harm to patients. A must. [0004] In the process of clinical diagnosis and treatment, when the pathological nature of suspicious lesions cannot be determined, medical image-guided...

AI Technical Summary

Problems solved by technology

The steps are cumbersome, which increases the complexity and operation time of the puncture operation, and the frequent removal and insertion of the needle core will cause the deviation of the puncture direction, so that the tissue obtained by sampling is not the required diseased tissue, but a second puncture is required, which increases the patient's Pain, but also increased physical trauma and economic burden to patients

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