Biopsy needle

The utility model discloses a biopsy needle which comprises a sampling rod, a sample groove, a protective arm and a blade. Wherein a needle tip is arranged at one end of the sampling rod; the sample groove is formed in one end, close to the needle tip, of the sampling rod; the biopsy needle has the advantages that the biopsy needle is sharper and more convenient to cut tissue samples in the operation process, the samples are semi-cylindrical after being cut, the shapes of the samples are more regular, the edges of the two sides of the samples are very smooth, and tissue fibers cannot be involved, scratched and rubbed. And after surgical sampling, the biopsy needle can be withdrawn from the biopsy needle more easily, so that the sampling efficiency and the surgical success rate are improved. 本实用新型公开了一种活检针，包括：取样杆、样品槽、护臂和刀刃；其中取样杆的一端设置有针尖；样品槽设置在取样杆上且靠近针尖的一端；样品槽的两侧均设置有护臂，每个护臂上还设置有刀刃，本实用新型的活检针在手术过程中切割组织样本时会更锋利更便捷，并且样本在切割后呈半圆柱体，形状更加规则，样本的两侧边缘会很光滑，不会有组织纤维牵连剐蹭。在手术取样后，更容易从活检针内退出，提高了取样效率和手术成功率。