Bone marrow puncture needle

Abstract

The invention discloses a bone marrow puncture needle, which comprises a puncture needle body, a semicircular angle frame, a sleeve, a fixing plate and an auxiliary plate, wherein the puncture needle body is composed of an outer sleeve, a needle core and a needle handle; a needle core fixing clamping groove is formed in the upper part of the needle handle; a needle core handle is arranged at the top of the needle core; a needle core fixing clamping core is arranged between the needle core handle and the needle core; a dial and an arc-shaped clamping groove are arranged on the semicircular angle frame; the sleeve is sleeved with the outer pipe casing of the puncture needle body by virtue of a screw thread; the sleeve is connected to a nut by virtue of a shaft; the shaft runs through the arc-shaped clamping groove in the semicircular angle frame; the puncture needle body is connected to the semicircular angle frame by virtue of the sleeve; a puncture hole is formed in the fixing plate; and the fixing plate is movably connected to the auxiliary plate. By virtue of the semicircular angle frame, medical personnel can observe a puncture angle when carrying out puncture, so as to reduce puncture risk; by adding a scale mark on the outer pipe casing, the length of inserting needle can be accurately mastered, and force can be controlled more easily especially for patients with relatively hard or relatively loose bone, so as to avoid injury on tissues surrounding a punctured part.

Description

technical field [0001] The invention relates to the field of medical instruments, in particular to a bone marrow puncture needle. Background technique [0002] At present, the bone marrow puncture needles used clinically are mainly composed of a needle body, a needle handle, and a needle core. When performing bone marrow puncture, clinicians need to hold the needle body and puncture with force. The puncture process is time-consuming and laborious, especially for hard or For looser patients, it is difficult to control the strength, and it is easy to insert the needle too long or cause damage to the surrounding tissues, and the puncture angle cannot be well grasped during puncture, especially the sternal puncture is more difficult, the risk is higher, and the needle core is not well fixed. Contents of the invention [0003] In summary, the purpose of the present invention is to provide a bone marrow puncture needle. [0004] The purpose of the present invention is achieved ...

AI Technical Summary

Problems solved by technology

[0002] At present, the bone marrow puncture needles used clinically are mainly composed of a needle body, a needle handle, and a needle core. When performing bone marrow puncture, clinicians need to hold the needle body and puncture with force. The puncture process is time-consuming and laborious, especially for hard or It is difficult for looser patients to control the strength, and it is easy to insert the needle too long or cause damage to the surrounding tissues, and the puncture angle cannot be well grasped during puncture, especially the sternal puncture is more difficult, the risk is higher, and the needle core is not well fixed

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