US 12,303,410 B2
Stent device with stent covering with regions of differing porosity
Hirofumi Taniguchi, Hachioji (JP)
Assigned to Olympus Medical Systems Corp., Tokyo (JP)
Filed by OLYMPUS MEDICAL SYSTEMS CORP., Tokyo (JP)
Filed on Jan. 24, 2024, as Appl. No. 18/420,909.
Application 18/420,909 is a continuation of application No. 17/673,098, filed on Feb. 16, 2022, granted, now 11,925,571.
Claims priority of provisional application 63/153,453, filed on Feb. 25, 2021.
Prior Publication US 2024/0164919 A1, May 23, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. A61F 2/90 (2013.01); A61F 2/00 (2006.01); A61F 2/95 (2013.01); A61F 2/962 (2013.01)
CPC A61F 2/90 (2013.01) [A61F 2/9517 (2020.05); A61F 2/962 (2013.01); A61F 2002/0081 (2013.01); A61F 2230/0069 (2013.01); A61F 2250/0023 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A stent, comprising:
a body braided by one or more wires; and
a cover configured to cover at least part of the body,
wherein the body has a plurality of cells surrounded by the wires,
wherein one cell of the plurality of cells has a first area and a second area and a third area,
wherein the cover has a first portion and a second portion and a third portion, the first portion corresponding to the first area and the second portion corresponding to the second area and the third portion corresponding to the third area,
wherein the second portion is surrounded by the first portion,
wherein a porosity ratio of the first portion is higher than a porosity ratio of the second portion,
wherein a porosity ratio of the third portion is lower than the porosity ratio of the first portion, and
wherein the porosity ratio of the third portion is higher than the porosity ratio of the second portion.