|
1. A polymeric heart valve comprising a valve leaflet and a valve frame, wherein the valve frame is a hollow cylindrical structure and comprises a first end and a second end; the first end is provided with a plurality of column peaks arranged at intervals in the circumferential direction, and column valleys are correspondingly formed; the number of the valve leaflets is consistent with the number of the column peaks; the valve leaflets are arranged in the center of the first end; a plurality of the valve leaflets sequentially connected to two adjacent column peaks in the circumferential direction; the valve further comprises an insert; the insert is a hollow cylindrical structure matching the valve frame; and the insert comprises a third end and a fourth end corresponding to the first end and the second end, respectively; the insert is suitable for being embedded in the valve frame in the axial direction; the insert comprises an axial positioning structure and a radial positioning structure; the valve leaflets and the valve frame are subjected to one-time injection molding; the insert is embedded into the valve frame to become a whole when the valve frame and the valve leaflets are subjected to injection molding; the radial positioning structure comprises positioning protrusions arranged on the outer wall of the insert; and the positioning protrusions are uniformly arranged on the outer wall of the insert, and wherein a center of the valve leaflets is provided with a gas-permeable groove having a diameter of 0.005 mm-0.01 mm.
|
