Patent ID: 11877718
Assignee: LIFETECH SCIENTIFIC (SHENZHEN) CO., LTD
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 16:
17. The thrombus removal device of claim 16, wherein the first sleeve is provided with a first internal thread, the second sleeve is provide with a second internal thread, a first external thread and a second external thread respectively cooperating with the first internal thread and the second internal thread are provided on the elongate delivery member, the first external thread has a distribution range, the second external thread has a distribution range, the distribution range of the first external thread on the elongate delivery member is larger than the distribution range of the second external thread, each of the first internal thread and the second internal thread respectively has a screw pitch ,wherein the screw pitch of the first internal thread is equal to the screw pitch of the second internal thread, and parts without threads are provided at both the proximal side and the distal side of the first sleeve and both the proximal side and the distal side of the second sleeve within a range of axial movement of the second sleeve.