Hollow Organ Model with Embedded Sensor for Objective Skill Evaluation
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Solution Overview
Problem
Current blood vessel models lack the capability to quantify doctor skill levels and treatment effects during endovascular procedures, relying on subjective evaluation and lacking objective measurement tools.
Innovation Solution
A hollow organ model unit is developed, comprising a base with a recessed part, a hollow organ model, and a sensor, where the sensor measures displacement or pressure within the model to evaluate skill levels and treatment efficacy, manufactured by laminating polyvinyl alcohol and a sacrificial material with the sensor positioned during lamination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a blood vessel model is used for training doctors, then doctors can gain experience and improve skill levels, but there is no way to quantitatively evaluate the skill level or treatment effect
Solution Approach 1:
The patent replaces subjective visual evaluation with objective sensor-based measurement. Pressure sensors and displacement sensors are embedded in the blood vessel model to automatically detect and quantify catheter insertion forces and vessel wall deformations, converting qualitative skill assessment into quantitative data without requiring complex external measurement equipment
Solution Approach 2:
The blood vessel model performs self-measurement through embedded sensors that automatically detect treatment parameters during the procedure. The model itself generates the evaluation data through its内置 sensors, eliminating the need for external measurement systems or complex post-procedure analysis equipment
2Loss of information
If a simple blood vessel model without sensors is used, then the model structure remains simple and easy to manufacture, but objective measurement of treatment effects is not possible
Solution Approach 1:
Sensors are embedded in the blood vessel model during the manufacturing process itself, rather than being added afterward. The sacrificial material technique allows sensor placement to occur while the model is being formed through lamination, integrating the measurement function into the base manufacturing workflow without requiring separate complex assembly steps
Solution Approach 2:
A sacrificial material is used as a temporary intermediary structure during manufacturing. This material is laminated with the polyvinyl alcohol to create the hollow organ model, and sensors are positioned using this sacrificial material as a placeholder. The sacrificial material is later removed, leaving the sensors properly positioned in the final model without requiring complex direct positioning methods
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
Enables objective evaluation of doctor skill levels and treatment effects by quantifying displacement or pressure changes within the model, providing a more accurate assessment of training and treatment outcomes.
Implementation Method 1
a sensor that performs a measurement on a hollow organ model
Implementation Method 2
laminating a polyvinyl alcohol material and a sacrificial material to form a hollow organ model and a base
Data Source
AI summary
Provided is a hollow organ model unit. The hollow organ model unit includes a base that includes a recessed part, a hollow organ model that is placed in the recessed part, a filler that is filled in the recessed part, and a sensor that performs a measurement on the hollow organ model.