Magnetic Body for Luminal Organ Localization
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Solution Overview
Problem
Current methods for identifying and resecting lesions within luminal organs during surgery, such as dot inking with India ink, require high expertise due to the need for precise needle depth control and simultaneous visualization and handling, which can lead to incomplete resections or tissue damage.
Innovation Solution
A method involving pre-anchoring a magnetic body inside the luminal organ and using a magnet to attract and hold it from outside, allowing for precise localization and traction of the lesion site without penetrating the organ wall, thereby reducing the need for precise needle placement and enhancing visualization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If needle penetration depth is increased to ensure visible dot inking from outside, then lesion location identification is improved, but risk of penetrating through stomach wall and coating other organs increases
Solution Approach 1:
The patent introduces a magnetic body as an intermediary marker anchored inside the stomach wall, which interacts with an external magnet to provide lesion location identification without requiring needle penetration through the stomach wall. This mediator approach eliminates the harmful effect of ink leakage while maintaining measurement precision.
Solution Approach 2:
The patent replaces the mechanical needle penetration system with a magnetic field-based system. Instead of mechanically piercing the stomach wall to inject ink, the system uses magnetic attraction between an internal magnetic body and an external magnet to achieve the same localization function, thereby eliminating tissue damage.
2Object-affected harmful factors
If needle penetration depth is decreased to avoid penetrating through stomach wall, then tissue damage is reduced, but lesion location identification becomes unclear
Solution Approach 1:
The magnetic body serves as a reliable intermediary that provides clear lesion location identification without requiring needle penetration. The magnetic interaction between the internal body and external magnet creates a visible and measurable effect that maintains precision while avoiding tissue damage.
Solution Approach 2:
The patent changes the physical parameter from mechanical penetration depth to magnetic field strength. By adjusting the magnetic field parameters rather than needle depth, the system achieves both clear lesion identification and avoidance of tissue damage simultaneously.
3Ease of operation
If metallic holding forceps are used to hold the stomach during surgery, then lesion site holding is achieved, but simultaneous visualization and handling requires high expertise
Solution Approach 1:
The magnetic body acts as an intermediary that simplifies the holding operation. Instead of requiring complex simultaneous visualization and handling with metallic forceps, the magnetic attraction automatically positions and holds the stomach area, reducing operational complexity.
Solution Approach 2:
The magnetic system provides self-service holding functionality where the magnetic attraction automatically positions and secures the stomach area without requiring complex manual manipulation and visualization coordination, thereby simplifying the surgical operation.
4Productivity
If metal rod with wire is used to suspend the lesion area, then resection is facilitated, but piercing the stomach wall requires high skill
Solution Approach 1:
The magnetic body serves as a non-invasive intermediary that eliminates the need for skillful piercing operations. The magnetic attraction provides sufficient suspension and resection facilitation without requiring the high skill level needed for precise metal rod piercing through the stomach wall.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This method simplifies the identification and resection of lesions by allowing easy estimation of the lesion site and secure holding without penetrating the organ, reducing surgical stress and the risk of tissue damage, and shortening surgical time.
Implementation Method 1
bringing a magnet close to the outside of the luminal organ, such that the magnetic body is attracted to the magnet
Data Source
AI summary
The present invention enables the desired area on a luminal organ to be held correctly during laparotomy or laparoscopic surgery, even without carrying out dot inking which requires a high degree of skill. In the present invention, a magnetic body is pre-anchored at a specific position inside a luminal organ. During surgery, a magnet is brought close to the outside of the luminal organ, such that the magnetic body is adsorbed to the magnet, along with the body tissue of the luminal organ, enabling traction.