Mixed Reality ERCP Guidance for Precise Papilla Cannulation

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Solution Overview

Problem

Current ERCP procedures face challenges in cannulation of the major papilla due to difficulty in visualization and lack of real-time guidance, leading to potential tissue damage and prolonged procedures, especially when performed by a single physician without additional support.

Innovation Solution

A mixed reality system using a head-mounted device provides real-time holographic guidance with 3D imaging of the duodenum, superimposed endoscopic and x-ray views, and allows collaboration among physicians to enhance cannulation precision and minimize tissue trauma.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a single physician performs ERCP without additional real-time support, then the procedure can be performed independently, but cannulation success rate decreases and procedure duration increases

Engineering Contradiction:
Improveindependent procedure performanceVSAvoidcannulation success rate
Core Design Contradiction:
Ease of operationVSProductivity

Solution Approach 1:

The patent introduces a mixed reality system as an intermediary between the physician and the complex anatomical structures. The system provides real-time holographic guidance, anatomical information, and collaborative support through the mixed reality interface, enabling the physician to perform procedures with enhanced accuracy and confidence without requiring constant presence of multiple specialists.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent replaces traditional mechanical collaboration methods (such as multiple physicians physically present and manually coordinating) with a digital mixed reality system. The system uses holographic displays, virtual reality interfaces, and digital communication to enable remote collaboration and real-time guidance, substituting physical mechanical coordination with digital information exchange.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Productivity

If excessive probing is used to achieve cannulation, then the major papilla can be accessed, but tissue damage and inflammation increase

Engineering Contradiction:
Improvecannulation achievementVSAvoidtissue damage and inflammation
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

The patent applies preliminary action by providing pre-procedure planning tools and real-time anatomical guidance through mixed reality. The system displays holographic anatomical structures, ductal anatomy, and predicted catheter paths before and during the procedure, allowing the physician to plan the optimal approach and avoid unnecessary probing attempts.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent implements continuous feedback mechanisms through real-time mixed reality visualization. The system provides live feedback on catheter position, ductal anatomy, and procedural progress through holographic displays, allowing the physician to adjust their approach immediately and avoid excessive probing by seeing the exact impact of each maneuver in real-time.

Inventive Principle:
Principle #23Feedback

3Productivity

If forceful probing is used to access the major papilla, then cannulation can be achieved, but ampullary trauma and pancreatic duct damage occur

Engineering Contradiction:
Improvecannulation successVSAvoidampullary trauma and pancreatic duct damage
Core Design Contradiction:
ProductivityVSObject-generated harmful factors

Solution Approach 1:

The system provides preliminary anatomical mapping and risk assessment through mixed reality visualization, displaying the precise location of the major papilla, ductal anatomy, and potential danger zones before the procedure begins. This allows the physician to plan a safe approach that avoids forceful probing and prevents trauma to surrounding structures.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent implements real-time feedback through mixed reality displays that show the exact position of the catheter tip relative to the major papilla and ductal structures. The system provides immediate visual feedback on the consequences of forceful probing, allowing the physician to stop or adjust maneuvers that could cause ampullary trauma or pancreatic duct damage.

Inventive Principle:
Principle #23Feedback

4Ease of operation

If direct light visualization is used during ERCP, then the endoscope can be guided, but cannulation difficulty remains

Engineering Contradiction:
Improveendoscope guidanceVSAvoidcannulation difficulty
Core Design Contradiction:
Ease of operationVSDifficulty of detecting and measuring

Solution Approach 1:

The patent transitions from two-dimensional direct light visualization to three-dimensional holographic visualization. The mixed reality system creates 3D anatomical models and spatial representations of the ductal anatomy, allowing the physician to perceive depth, spatial relationships, and anatomical structures in three dimensions, significantly improving the ability to detect and measure critical anatomical features during cannulation.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The patent replaces traditional two-dimensional optical visualization with three-dimensional holographic display technology. The system uses holographic projection and mixed reality computing to create immersive 3D anatomical visualizations, substituting the limited 2D direct light view with comprehensive 3D spatial information that greatly enhances anatomical detection and cannulation success.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Data Source

PatentUS12599457B1Mixed reality endoscopic retrograde cholangiopancreatopgraphy (ERCP) procedure
Publication Date: 2026.04.14 GORREPATI NAVAKANTH
  • US12599457B1 patent drawing
  • US12599457B1 patent drawing
  • US12599457B1 patent drawing

AI summary

A mixed reality endoscopic surgical procedure method, including the steps of selecting a three-dimensional holographic first image of a body part to be surgically operated on and displaying the three-dimensional holographic first image of the body part. The method can further include positioning an endoscope relative to the body part, wherein the endoscope further includes a guidewire, displaying a three-dimensional second holographic image or video of the endoscope or guidewire relative to the body part, and using the three-dimensional first holographic first image as a visual guide for engaging the body part via the guidewire.