Illustration for the deployment and shaping process of the occluder. (IMAGE)
Caption
(a) The left side of the bioabsorbable occluder formed a spherical shape after being released from the delivery sheath. (b) The left side of the bioabsorbable occluder was plasticized from a spherical shape into a disc shape by pulling back the shape line, which was tied on the center of the left disc (indicated by the red triangle). (c) The right side was spherical after being released from the delivery sheath. The yellow triangle indicated the connecting rivet of the occluder. The green triangle indicated the connecting line. (d) The entire occluder was shaped into the ‘‘double-umbrella” framework by pulling back the shape line and simultaneously pushing the delivery cable. There was a knot (indicated by the black triangle) on the shape line, which would be pulled beyond the connecting rivet of the occluder to ensure the stability of the double-umbrella shape once released.
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