Needle aspiration cytology inspection device

• Main Authors: WU RONG, DU LIANFANG, JIA CHAO, LIU LONG, SHI QIUSHENG, LI GANG
• Format: Patent
• Language: Chinese; English
• Published: 14.10.2022
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The utility model discloses a needle aspiration cytology examination device in the field of medical instruments, which comprises a needle tube, a needle head is arranged at one end of the needle tube, the other end of the needle tube is connected with a vertical injection rod, the tail end of the needle head is connected with a central tube penetrating through the needle tube and the injection rod, and a negative pressure drawing handle close to the needle head is arranged on one radial side of the needle tube; one end, close to the piston cavity, of the piston rod is connected with a piston, one end, far away from the piston cavity, of the piston rod is connected with a top shell, and a horizontal tension spring is connected between the top shell and the piston. Therefore, the accuracy of the puncture sampling process is obviously improved. 本实用新型公开了医用器械领域的一种针吸细胞学检查装置包括针管，针管的一端设有针头，针管的另一端连接有竖向的推注杆，针头的尾端连接有贯穿针管和推注杆的中心管，针管的径向一侧带有靠近针头的负压抽拉手柄；活塞杆靠近活塞腔的一端连接有活塞，活塞杆远离活塞腔的一端连接顶壳，顶壳和活塞之间连接水平的拉簧，装置最大的优点是超声医生可独自完成超声引导、穿