| Intended use | Mainly used for extracting bone marrow fluid for examination during medical diagnosis and treatment. |
| Needle tube characteristics | Outer tube: Needle tip pentagonal/trigonal/harpoon type/flat head, perforated, scale, tail flared/sandblasted Inner tube: Round head/bevel/Triangle/flat head, tail flattened, slotted |
| Specification | 8G 11G 13G 15G 16G |
