Cholecystitis treatment via gallbladder-duodenum fistula

Patent metadata

Field	Value
Publication number	US-12514697-B2
Application number	US-202318170067-A
Country	US
Kind code	B2
Filing date	Feb 16, 2023
Priority date	Feb 18, 2022
Publication date	Jan 6, 2026
Grant date	Jan 6, 2026

Abstract

According to an aspect, a method of cholecystitis treatment includes: forming a communication hole that communicates a gallbladder and a duodenum; and arranging a bypass tube extending from a cystic duct to the duodenum through an inside of the gallbladder and the communication hole.

First claim

What is claimed is:

1 . A method of cholecystitis treatment, the method comprising:
forming a fluid communication hole that communicates a gallbladder and a digestive tract; and arranging a bypass tube extending from a cystic duct to the digestive tract through an inside of the gallbladder and the fluid communication hole.

2 . The method of cholecystitis treatment according to claim 1 , wherein the bypass tube is first arranged in the gallbladder and then arranged in the digestive tract by a device that has entered the gallbladder.

3 . The method of cholecystitis treatment according to claim 1 , wherein
the bypass tube has flaps at both ends, and one of the flaps is arranged in the bile duct and the other of the flaps is arranged in the digestive tract.

4 . The method of cholecystitis treatment according to claim 3 , wherein
the bypass tube has an auxiliary flap in a middle part, and the auxiliary flap is arranged in the gallbladder.

5 . The method of cholecystitis treatment according to claim 1 , wherein the fluid communication hole is formed by puncturing the gallbladder from within the digestive tract.

6 . The method of cholecystitis treatment according to claim 1 , wherein a stent is arranged in the fluid communication hole.

7 . The method of cholecystitis treatment according to claim 1 , the method comprising:
forming a first hole on the gallbladder and a second hole on the digestive tract; connecting the first hole and the second hole to form a connection area; and wherein the arranging includes placing the bypass tube connecting the connection area to the cystic duct.

8 . The method of cholecystitis treatment according to claim 7 , wherein the placing includes engaging a first projection of the bypass tube on the cystic duct.

9 . The method of cholecystitis treatment according to claim 8 , wherein the placing includes engaging a second projection of the bypass tube on the connection area.

10 . The method of cholecystitis treatment according to claim 9 , wherein the connecting includes one of placing a stent at the connection area, suturing the gallbladder and digestive tract, and sealing the gallbladder and digestive tract.

11 . The method of cholecystitis treatment according to claim 9 , wherein
the first projection has a first flap extending in a radial direction of a first end of the bypass tube, and the second projection has a second flap extending in a radial direction of a second end of the bypass tube.

12 . The method of cholecystitis treatment according to claim 11 , wherein
the placing includes engaging a third projection of the bypass tube, and the third projection is located between the first projection and the second projection.

13 . The method of cholecystitis treatment according to claim 11 , wherein
the engaging the first end includes one or more of sealing a space between the cystic duct and the bypass tube, suturing the cystic duct and attaching a first projection of the bypass tube to the cystic duct, and the engaging the second end includes one or more of sealing a space between the connection area and the bypass tube, suturing the connection area and attaching a second projection of the bypass tube to the connection area.

14 . The method of cholecystitis treatment according to claim 11 , wherein engaging the first end proceeds after the hooking or otherwise engaging a second end.

15 . The method of cholecystitis treatment according to claim 7 , wherein the forming includes puncturing one of (i) the gallbladder from a side of the cystic duct and (ii) the gallbladder from a side of the digestive tract.

16 . The method of cholecystitis treatment according to claim 7 , wherein the placing includes:
inserting a tube guide to the cystic duct, inserting the bypass tube carried by the tube guide, placing a first end of the bypass tube at the cystic duct, pulling the tube guide to the connection area, and placing a second end of the bypass tube at the connection area.

Assignees

• Olympus Medical Systems Corp

Inventors

• Katayama Tomofumi
• Mamiya Tomohiko
• Sato Mitsuki
• Shoji Keita

Classifications

• A61M27/002

  Implant devices for drainage of body fluids from one part of the body to another (intraocular A61F9/00781; middle ear A61F11/202) · CPC title

• A61B17/1114 Primary

  of the digestive tract, e.g. bowels or oesophagus · CPC title

• A61B2017/1139

  Side-to-side connections, e.g. shunt or X-connections · CPC title

• A61F2002/041

  Bile ducts · CPC title

• A61F2/04 Primary

  Hollow or tubular parts of organs, e.g. bladders, tracheae, bronchi or bile ducts (A61F2/18, A61F2/20 take precedence; instruments specially adapted for placement or removal of stents or stent-grafts A61F2/95) · CPC title