Patient-Specific Anatomical Models With Target Zones for Surgical Training

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Solution Overview

Problem

Surgeons face challenges in preparing for orthopaedic surgeries due to bone defects caused by erosion or fracture, which can lead to joint instability and pain, and existing training methods using cadaveric or saw bone specimens lack specificity and effectiveness in simulating patient-specific anatomy.

Innovation Solution

The development of physical anatomical models with target and warning zones, incorporating visual, tactile, and audible indicators, along with virtual models, to simulate patient-specific anatomy and provide tailored training experiences.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If cadaveric or saw bone specimens are used for surgical training, then surgeons can practice surgical procedures, but the training lacks specificity and effectiveness in simulating patient-specific anatomy

Engineering Contradiction:
Improvetraining effectivenessVSAvoidanatomy specificity
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The patent creates physical anatomical models that are precise copies of patient-specific anatomy using 3D imaging and additive manufacturing. These models replicate the unique geometric features, bone defects, and anatomical variations of individual patients, providing realistic training scenarios that generic cadaveric or saw bone specimens cannot offer.

Inventive Principle:
Principle #26Copying

Solution Approach 2:

The system allows customization of model parameters such as bone density, defect size and location, cortical thickness, and anatomical dimensions based on patient-specific imaging data. This enables the creation of tailored training models that match the actual surgical scenario, improving both reliability and adaptability of the training process.

Inventive Principle:
Principle #35Parameter changes

2Adaptability or versatility

If physical anatomical models with target and warning zones are created, then surgical training specificity is improved, but model complexity and manufacturing difficulty increase

Engineering Contradiction:
Improvetraining customizationVSAvoidmodel structure
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent incorporates target zones and warning zones with distinct material properties, colors, or textures at specific locations within the anatomical model. These localized features provide visual and tactile feedback to guide surgical training without requiring the entire model to be complex. The zones are strategically placed to highlight critical areas while maintaining overall model simplicity.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The model uses composite construction with different materials for bone structures, target zones, and warning zones. This allows each region to have optimized properties for its specific function while being manufactured as an integrated unit through additive manufacturing, reducing overall complexity compared to assembling multiple separate components.

Inventive Principle:
Principle #40Composite materials

3Measurement precision

If patient-specific physical models are manufactured, then surgical preparation accuracy is enhanced, but manufacturing time and cost increase

Engineering Contradiction:
Improveanatomy representation accuracyVSAvoidmodel fabrication time
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The system performs 3D imaging, model generation, and manufacturing准备工作 before the actual surgery. By completing these steps in advance, the surgical team receives ready-to-use patient-specific models that eliminate last-minute preparation delays and allow sufficient time for surgical planning based on the accurate anatomical representations.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The manufacturing process uses adjustable parameters such as model scale, material selection, and level of detail to balance accuracy with production time. Critical anatomical features can be manufactured at higher resolution while less critical areas use faster manufacturing settings, optimizing the trade-off between precision and time efficiency.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS12575887B2Surgical systems, anatomical models and associated methods
Publication Date: 2026.03.17 ARTHREX INC
  • US12575887B2 patent drawing
  • US12575887B2 patent drawing
  • US12575887B2 patent drawing

AI summary

This disclosure relates to surgical systems, devices and methods for planning and implementing surgical procedures. The systems and methods disclosed herein may be utilized to establish physical models of anatomy.