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US 2022/0176089 A1Published application
Method for forming access route to bile duct
AssigneesHiroyuki Isayama, Olympus Medical Systems Corp.
InventorHiroyuki ISAYAMA
Life of this patent
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Abstract
A method of forming an access route to the bile duct includes: forming a tunnel extending from an oral ridge of a duodenal papilla, which is located on an oral side of a natural opening of a duodenal papilla, to the bile duct; and dilating a lumen of the tunnel more than when it was formed.
Claims20
A method for forming an access route to a bile duct, the method comprising:
- forming a tunnel extending from an oral ridge of a duodenal papilla, which is located on an oral side of a natural opening of a duodenal papilla, to the bile duct;
- and
- dilating a lumen of the tunnel more than when it was formed.
A method for forming an access route to a bile duct, the method comprising:
- forming a tunnel extending from an oral ridge of a duodenal papilla, which is located on an oral side of a natural opening of a duodenal papilla, to the bile duct;
- and
- placing a stent so that at least a part of the stent is located in the tunnel.
A method for forming an access route to a bile duct, the method comprising:
- forming a tunnel extending from an oral ridge of a duodenal papilla, which is located on an oral side of a natural opening of a duodenal papilla, to the bile duct,
- wherein the tunnel is formed by piercing a needle, which is configured to energize a tissue, from the oral ridge toward the bile duct.
Dependencies are inferred from the claim text.