How to use bone marrow puncture needle

The bone marrow puncture needle is a special tool for bone marrow puncture. The bone marrow puncture needle is composed of two parts: one is a needle core; the other is a needle plug. At the same time, there is a screw outside the needle plug. The length of the bone marrow puncture needle can be adjusted by the screw. Therefore, in the bone marrow puncture examination, first of all, the weight of the patient should be evaluated. If the patient has more subcutaneous fat, the bone marrow puncture needle should be adjusted longer; if the patient is thin, the bone marrow puncture needle should be adjusted shorter. When doing bone marrow puncture, the needle core and the needle plug must be tightly combined, and no gaps should be left. If there is a gap, the broken bone debris may block the eye of the needle during the bone marrow puncture, and the bone marrow fluid cannot be extracted, and the bone marrow puncture will fail. At the same time, when doing bone marrow puncture, you must use slow force instead of brute force to prevent the bone marrow puncture needle from breaking due to the extremely hard bone. This situation often occurs in clinical practice.

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