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1. (WO2018082378) FILTER

Pub. No.:    WO/2018/082378    International Application No.:    PCT/CN2017/099023
Publication Date: Sat May 12 01:59:59 CEST 2018 International Filing Date: Sat Aug 26 01:59:59 CEST 2017
IPC: A61F 2/01
Inventors: CHEN, Zhuo
LIU, Zan
A filter, comprising a telecentric end strainer (3), a proximal end strainer (4), multiple connecting rods (5) connecting the telecentric end strainer (3) and the proximal end strainer (4), and at least two supporting rods that are connected with the connecting rods (5) and are located on the outside of the connecting rods (5). One end of each telecentric end strainer rod (31), of the telecentric end strainer (3), is connected with one connecting rod (5), and the other ends of all telecentric end strainer rods (31) converge on the telecentric end (1) to form the telecentric end strainer (3). The telecentric end strainer rod (31) has a flexible portion (8). When pressing the supporting rod in the radial direction of the filter, the telecentric end strainer rod (31) has a flexural deformation towards the axis of the filter at the flexible portion (8). By providing on the telecentric end strainer rod (31) a flexible portion (8) for changing the local strength of the telecentric end strainer rod (31), the present invention is able to prevent any possibility of the joint between the connecting rod (5) and the supporting rod protruding, to touch inner wall of a blood vessel.