Background technology of bone marrow puncture needle

The collection of bone marrow is the basic technology required for bone marrow transplantation, bone marrow cell and bone marrow stem cell treatment. Depending on the treatment, the site and type of bone marrow are also different. Traditional bone marrow puncture involves connecting the puncture needle with an ordinary syringe to perform the puncture. There are also new puncture needles with a bone marrow harvester added to facilitate observation of the amount of bone marrow extracted, thereby adjusting the speed and intensity of bone marrow extraction. However, if it is necessary to collect red bone marrow, bone marrow stem cells, or a large amount of bone marrow and bone marrow blood in hard parts such as the iliac bone, the existing bone marrow collector is extremely laborious in operation, and it is not easy to reach the depth of enrichment of red bone marrow. It is not easy to extract enough tissues rich in bone marrow stem cells. And because the hollow needle for collecting bone marrow has only one hole at the bottom, the time for bone marrow extraction is long, the flow is small, and it is easy to be blocked. In addition, the position and depth of the bone marrow puncture are mostly based on the operator's experience and lack reliable objective basis, which makes it impossible to accurately locate the target bone marrow tissue, resulting in the need for multiple bone marrow extractions, increasing patient pain, medical costs and operator workload.

In summary, there is an urgent need to provide a new type of bone marrow puncture needle.

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