Gallbladder-Duodenum Bypass Tube for Low-Invasive Cholecystitis Control

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Solution Overview

Problem

Current treatments for acute cholecystitis, such as laparoscopic cholecystectomy and ultrasonic endoscopy, are invasive and do not adequately address the recurrence of the condition due to the invasiveness and potential for bile concentration in the gallbladder.

Innovation Solution

A method involving the formation of a fluid communication hole between the gallbladder and the digestive tract, with a bypass tube extending from the cystic duct to the duodenum, and anchoring engagement members to secure the tube in place, diverting bile flow and preventing calculus formation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If laparoscopic cholecystectomy is performed to remove the gallbladder, then recurrence of cholecystitis is eliminated, but invasiveness to the patient increases

Engineering Contradiction:

Improverecurrence preventionVSAvoidinvasiveness

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent extracts and eliminates the gallbladder mucosa through puncture and cauterization, removing the harmful concentrating function while preserving the gallbladder organ itself. This resolves the contradiction by eliminating recurrence risk without performing invasive cholecystectomy surgery.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent uses endoscopic ultrasound as an intermediary tool to guide puncture and create a fistula between the gallbladder and duodenum, enabling minimally invasive elimination of mucosal function while maintaining organ presence.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Object-affected harmful factors

If the gallbladder is preserved after fistula formation, then invasiveness is reduced, but bile concentration and calculus formation may occur

Engineering Contradiction:

ImproveinvasivenessVSAvoidcalculus formation

Core Design Contradiction:

Object-affected harmful factorsVSObject-generated harmful factors

Solution Approach 1:

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent converts the harmful concentrating function of the gallbladder mucosa into a benefit by deliberately eliminating it through controlled injury and inflammation, which prevents calculus formation while maintaining the protective presence of the gallbladder organ.

Inventive Principle:

Principle #22Blessing in disguise (Convert harm into benefit)

3Object-generated harmful factors

If ultrasonic endoscopy with cauterization is used to eliminate gallbladder mucosa function, then calculus formation is suppressed, but the procedure complexity increases

Engineering Contradiction:

Improvecalculus formationVSAvoidprocedure complexity

Core Design Contradiction:

Object-generated harmful factorsVSDevice complexity

Solution Approach 1:

The patent combines endoscopic ultrasound imaging, puncture, and cauterization functions into a single integrated procedure, eliminating the need for separate surgical interventions and reducing overall procedural complexity despite the advanced techniques used.

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentUS20260069399A1Cholecystitis treatment via gallbladder-duodenum fistula

Publication Date: 2026.03.12 OLYMPUS MEDICAL SYST CORP

AI summary

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.