Improved Ommaya sac puncture negative pressure drainage structure

The utility model discloses an improved Ommaya sac puncture negative pressure drainage structure which comprises a drainage hose. A puncture steel needle is arranged at one end of the drainage hose, the front end of the puncture steel needle is a bent puncture end, and a scale mark used for displaying the puncture depth is arranged on the outer wall of the puncture end of the puncture steel needle. A negative pressure ball used for providing negative pressure for negative pressure drainage and storing drained liquid is detachably arranged at the end, away from the puncture steel needle, of the drainage hose. The utility model has the advantages that the puncture depth can be effectively controlled to reduce the puncture risk, and the negative pressure drainage function is provided to facilitate the drainage operation of the omaya sac. 本实用新型公开了一种改良的Ommaya囊穿刺负压引流结构，包括引流软管；在所述引流软管的一端设有穿刺钢针且该穿刺钢针的前端为弯曲状的穿刺端，在所述穿刺钢针的穿刺端外壁上设有一用于显示穿刺深度的刻度线；在所述引流软管上远离所述穿刺钢针的一端可拆卸设有一用于提供负压进行负压引流以及储存引流的液体的负压球。本实用新型具有能够有效把控穿刺深度以降低穿刺风险、具