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. 2023 Mar 3;9(9):eade7375. doi: 10.1126/sciadv.ade7375

Fig. 1. Transcatheter heart valves.

Fig. 1.

(A) BP is a collagenous membrane covering the bovine heart. (The figure was partly generated using Servier Medical Art, licensed under a Creative Commons Attribution 3.0 unported license.) (B) A photo of BP, thickness ~ 200 μm, harvested from the heart. (C) Photographs of a suture thread of a diameter of ~150 μm, BP leaflet, and metallic stent. (D) A schematic of BP leaflets sutured on a metallic stent to assemble into a transcatheter heart valve. (E) The transcatheter heart valve is compressed in a catheter and is pushed from a leg to the heart through an artery using a guide wire. Upon reaching the site of the aortic valve, the material expands into the shape of the heart valve, and then, the catheter is removed.