3D-Modeled Resection Tool for Precise Lesion Excision

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Solution Overview

Problem

Current methods for removing benign and malignant lesions are time-consuming, prone to human error, and lack precision in achieving a reproducible margin of tissue around the lesion.

Innovation Solution

The use of image analysis and three-dimensional modeling to determine the size and shape of the tissue mass to be resected, including the tumor and a predetermined margin, and to generate a custom three-dimensional model of a resection tool for precise excision.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If manual resection using scalpel or electrosurgical device is used, then surgical flexibility is maintained, but precision and reproducibility of margin are reduced

Engineering Contradiction:
Improvemargin precisionVSAvoidresection system complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The patent applies preliminary action by creating a three-dimensional model of the lesion and pre-determining the exact resection margins before surgery. The system calculates the precise tissue mass to be resected based on imaging data, allowing the surgeon to follow a pre-planned resection path that ensures accurate margins while maintaining surgical flexibility.

Inventive Principle:
Principle #10Preliminary action

2Productivity

If manual resection process is used, then adaptability to different lesion types is maintained, but surgical time and human error increase

Engineering Contradiction:
Improvesurgical efficiencyVSAvoidresection accuracy
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The patent implements feedback by providing real-time guidance to the surgeon during resection. The system continuously monitors the resection process against the pre-determined three-dimensional model, allowing the surgeon to adjust and maintain precise margins while reducing variability and human error.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system performs preliminary calculations to determine the exact tissue mass to be resected based on imaging data and margin requirements. This pre-planning step enables faster, more accurate resection by eliminating intraoperative decision-making about margin distances.

Inventive Principle:
Principle #10Preliminary action

3Measurement precision

If custom three-dimensional modeling is implemented, then resection precision is improved, but device complexity and manufacturing requirements increase

Engineering Contradiction:
Improvelesion measurement accuracyVSAvoidmodeling system complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent applies copying by creating a three-dimensional digital model that replicates the lesion's geometry and spatial relationships. This virtual copy allows for precise measurement and planning without requiring complex physical modeling tools during surgery, simplifying the actual surgical process while maintaining high measurement precision.

Inventive Principle:
Principle #26Copying

Data Source

PatentUS20250032188A1Method, apparatus, and system for removal of lesions
Publication Date: 2025.01.30 UNIV OF FLORIDA RESEARCH FOUNDATION INC
  • US20250032188A1 patent drawing
  • US20250032188A1 patent drawing
  • US20250032188A1 patent drawing

AI summary

Provided herein is a method, apparatus, and system for the removal of benign and malignant lesions, and more particularly, to the use of image analysis and three-dimensional modeling for the excision of skin-based, subcutaneous, or deep lesions with a precise and reproducible margin of tissue around the lesion. Methods include: obtaining images of a tumor within a patient; determining a size and shape of a tissue mass to be resected including the tumor based on the images; generating a three-dimensional model of a resection tool for resecting the tissue mass to be resected based on the size and shape of the tissue mass as well as nearby vital structures and anatomic landmarks; and providing for three-dimensional manufacture of the resection tool.