Children spinous process bone marrow puncture needle convenient to operate and not prone to blockage

Abstract

The invention relates to the field of medical instruments, in particular to a child spinous process bone marrow puncture needle which is convenient to operate and not prone to blockage and comprises a needle tube and a needle head base connected with one end of the needle tube, a needle core is inserted into the needle tube, and one end of the needle core extends out of the needle head base to be connected with an end plate. The needle core is inserted into the needle tube, the needle tube can be prevented from being blocked in the using process through the needle core, the needle tube can be successfully inserted at a time, repeated insertion is not needed, the insertion success rate is increased, and pain of a patient is relieved. By arranging the pressing mechanism, after the needle tube is inserted, the sealing plate is pushed downwards till the sealing plate makes contact with the body of a patient downwards, the elastic cushion is unfolded to block the penetrating hole, then the inserted position of the needle tube is shielded, and the situation that the patient sees the contact position of the needle tube and the body, and consequently adverse effects are caused is avoided.

Description

technical field [0001] The invention relates to a bone marrow puncture needle, in particular to a children's spinous process bone marrow puncture needle which is easy to operate and not easily blocked, and belongs to the field of medical devices. Background technique [0002] Bone marrow aspirate is a common diagnostic technique for collecting bone marrow fluid. Clinically, bone marrow aspirate is often used for morphological examination of blood cells, and can also be used for hematopoietic stem cell culture, cytogenetic analysis and pathogenic biological examination, etc., to assist clinical diagnosis and observation. efficacy and prognosis. The bone marrow puncture sites in children are generally selected from the spinous process, the sternum, and the anterior superior iliac ridge. The sternum and the anterior superior iliac ridge are usually selected with traditional bone piercing needles. The diameter of this needle is relatively thick and the trauma is relatively larg...

AI Technical Summary

Problems solved by technology

When selecting the sternum and the anterior superior iliac spine, a traditional bone needle is generally used. The diameter of this needle is relatively thick, and the trauma is relatively large. Children can see it and are prone to fear.

The position of the spinous process is relatively shallow, and the child cannot see it during the puncture, so the operation avoids the fear of the child. Usually, the 7-gauge needle is used for direct puncture, but it is often blocked and needs to be punctured again, which affects the efficiency of puncture and is easy to cause harm to children. secondary trauma

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