Patent ID: 11911274
Assignee: nan
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 7:
8. A method of making an artificial heart valve, the method comprising:
forming an inner leaflet body comprising a precursor material;
applying a stimulus to the precursor material, the stimulus causing the precursor material to have a negative Poisson's ratio;
forming an outer leaflet body at least partially surrounding the inner leaflet body, to form a leaflet comprising the inner leaflet body and the outer leaflet body, the outer leaflet body having a positive Poisson's ratio, wherein the inner leaflet body comprises a carbon structure having the negative Poisson ratio; and
arranging the leaflet with respect to one or more struts of the artificial heart valve, the struts attached to a frame, such that movement of the leaflet opens and closes a fluid flow path through the frame in response to heartbeats, the one or more struts restricting movement of the leaflet.