Patent ID: 11883033
Assignee: SHANGHAI PUSH MEDICAL DEVICE CO., LTD.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 7:
8. The LAA occluder according to claim 1, wherein
a resistance member is provided at a junction between the first gathering member and the connecting portion to increase a connection strength of the junction;
the resistance member comprises a first sawtooth-like structure and a plurality of second sawtooth-like structures; the first sawtooth-like structure is arranged at an end of the first gathering member toward the connecting portion; the second sawtooth-like structures are arranged at an end of the connecting portion toward the first gathering member; and in a connected state, the first sawtooth-like structure is locked with the second sawtooth-like structures;
or,
the resistance member comprises a resistance washer; the resistance washer is annular, and made of biocompatible flexible material such as polyester membrane or polytetrafluoroethylene (PTFE) membrane; two axial ends of the resistance washer each are provided with a plurality of protrusions; and in the connected state, the resistance washer is compressed between the first gathering member and the connecting portion.