Patent ID: 11903829
Assignee: VENUS MEDTECH (HANGZHOU), INC.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. An expandable sheath for transcatheter delivery system, comprising a tube having opposing distal and proximal ends in its axial direction, the distal end being provided with a plurality of support rods arranged at intervals in a circumferential direction of the tube, and the support rods extending axially and having relative converged and flared configurations, wherein more than two connecting strips are provided in the axial direction between two adjacent support rods, each of the connecting strips has a curved extension path and undulates in the circumferential direction, and undulation degrees of the connecting strips increase sequentially from a proximal end to a distal end of the plurality of support rods, and wherein each of the connecting strips has a first connecting portion and a second connecting portion respectively connected with two adjacent support rods in the circumferential direction, and the first connecting portion and the second connecting portion are located at different axial levels of the tube.