Jaw Training Model With Needle Guides for Anesthesia Practice
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing anatomical jaw models do not allow dentists in training to visualize or feel the correct angulations and penetration depths for anesthesia techniques, posing a risk of injury or pain to patients during practice.
Innovation Solution
An anatomical model of a maxilla with integrated tool guides simulating dental art gestures, including needle guidance slides, internal walls to represent cortical and trabecular bones, and visualization features to ensure precise needle placement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If dentists practice anesthesia techniques on patients under supervision, then they can fully experience the sensations needed to learn techniques, but this creates a risk of injury or pain for the patient
Solution Approach 1:
The patent creates a realistic anatomical model that copies the essential features of human jawbone and soft tissue to provide authentic tactile feedback for training. The model includes cortical bone layer with specific thickness (0.5-2cm) and trabecular bone structure that replicates the sensation of needle insertion and bone perforation, allowing trainees to practice on a safe replica rather than real patients
Solution Approach 2:
The anatomical model is segmented into distinct layers including cortical bone, trabecular bone, and soft tissue, each with specific physical properties. This segmentation allows the model to provide differentiated tactile feedback at different penetration depths, simulating the progressive sensation of needle insertion through various tissue layers without risking patient harm
2Object-affected harmful factors
If existing anatomical jaw models are used for practice, then patients are protected from risk, but dentists cannot visualize correct angulations or feel the sensations perceived during actual procedures
Solution Approach 1:
The anatomical model incorporates color-coded indicators and visual markers on the cortical bone surface to show correct needle insertion points, angulations, and target zones. Different colors indicate different penetration depths or anatomical structures, providing immediate visual feedback to complement the tactile sensations and guide proper technique
Solution Approach 2:
The model varies physical parameters such as cortical bone thickness (0.5-2cm), trabecular bone density, and soft tissue elasticity to replicate different anatomical conditions. These parameter variations provide authentic tactile feedback about penetration depth and bone characteristics, enabling trainees to develop proper tactile discrimination skills
3Ease of operation
If needle penetration depth is not precisely controlled during training, then practice is easier, but incorrect depth can lead to bone necrosis or injury to root tips
Solution Approach 1:
The anatomical model includes pre-marked indicators on the cortical bone surface that show the correct insertion depth and target zone before the needle is inserted. These pre-established visual guides allow trainees to immediately see the correct depth markers, eliminating the need for complex measurement during the procedure and ensuring consistent proper depth achievement
Solution Approach 2:
The model provides immediate tactile feedback when the needle reaches the cortical bone layer, trabecular bone, or the protective wall at the correct depth. This feedback mechanism allows trainees to sense when they have reached the appropriate penetration depth through resistance changes, reinforcing proper technique through sensory learning
Data Source
Figure 1~2
Figure 3~4A
Figure 4B~5B
AI summary
Disclosed is an anatomical model (100) of a maxilla of a living being, comprising a gingiva (110) representing the maxilla of said living being, the anatomical model comprising at least one guide (120a; 120b; 120c) for a tool integrated into the gingiva to allow an operator to simulate a dentistry gesture.