Bone marrow biopsy needle

• Main Authors: WANG YIN, CHAI YE
• Format: Patent
• Language: Chinese; English
• Published: 07.12.2021
• Subjects: DIAGNOSIS; HUMAN NECESSITIES; HYGIENE; IDENTIFICATION; MEDICAL OR VETERINARY SCIENCE; SURGERY

The utility model discloses a bone marrow biopsy needle, and relates to the technical field of medical instruments. The bone marrow biopsy needle comprises a handle, a needle core and a hollow puncture needle, the needle core is in sliding connection with the handle, a groove is formed in the upper end of the handle, a gear is rotationally connected into the groove, sawteeth with one end meshed with the gear are arranged on the needle core, and the end, close to the needle core, of the handle is in threaded connection with a fixing column. One end of the puncture needle is in threaded connection with the fixing column, and a locking device is arranged in the fixing column. By the adoption of the scheme, the requirement that people can accurately sample bone marrow tissue according to the quantity for the bone marrow biopsy needle can be met. 本实用新型公开了一种骨髓活检针，涉及医疗器械技术领域。骨髓活检针，包括手柄、针芯和中空的穿刺针，针芯与手柄滑动连接，手柄上端开有凹槽，凹槽内转动连接有齿轮，针芯上设有一端与齿轮相啮合的锯齿，手柄靠近针芯的一端螺纹连接有固定柱，穿刺针套于针芯外侧，穿刺针一端与固定柱螺纹连接，固定柱内设有锁定装置。采用本实用新型方案能够满足人们对骨髓活检针可