Venae femoralis is 8 °± ° and arteria 8 °± 8°. The front angle between puncture needle and anterid femoralis.
Venae femoralis is 8 °± ° and arteria 8 °± 8°. The front angle between puncture needle and anterid femoralis.
穿刺两血管的夹角：针矢角，股动脉为8°±°，股静脉8°±8°。