Can a puncture needle extract more bone marrow?

Who said overcooked? It's not blood, it's okay to draw a little more

There are two types of bone marrow

The first is for laboratory use, which is often referred to as bone marrow puncture. It requires local anesthesia and the needle is very thick. Usually in the posterior superior spine of the ilium. Also in the anterior superior iliac spine, or lumbar vertebrae. Rarely thorns on the sternum. Bone marrow puncture is still very painful, but the collection is very small, and the general dosage does not exceed 1ml

The second is a bone marrow transplant. Usually peripheral blood is collected. A few days before the operation, they were admitted to a sterile ward, and then injected with a hematopoietic stem cell promoter to promote the production of hematopoietic stem cells in a short period of time. Then, the stem cells were collected by a hematopoietic stem cell centrifuge, and the excess blood was returned to the body. The general collection volume is 50ml. The pain is much less

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