Nasal Impression Assembly with Adjustable Horizontal Bar
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Solution Overview
Problem
Precise manual nasal impressions are challenging for prosthodontists due to inadequate recording of defect areas, and existing techniques struggle to simultaneously capture impressions of both nostrils effectively, leading to unpredictable splinting of intra-nasal and extra-nasal impressions.
Innovation Solution
A nasal impression assembly with detachable components, including nasal cones and injection syringes for intra-nasal impressions and an extra-nasal mesh splint, assembled on an adjustable horizontal bar to accommodate anatomical variations, allowing for precise recording of both intra-nasal and extra-nasal areas individually or collectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional impression techniques are used, then the process is simple, but the measurement precision and reliability of nasal defect area recording are insufficient
Solution Approach 1:
The impression assembly is divided into multiple detachable components: intra-nasal cones for recording defect areas, extra-nasal mesh splints for capturing external anatomy, and an adjustable horizontal bar for positioning. Each component serves a specific function, allowing precise recording of different nasal regions while maintaining manageable complexity through modular design.
Solution Approach 2:
The horizontal bar serves multiple functions: it positions intra-nasal cones, supports extra-nasal mesh splints, and provides an adjustable framework that adapts to different nasal anatomies. This multi-functional design consolidates several positioning and support functions into a single structure, improving measurement precision without proportionally increasing device complexity.
2Reliability
If individual intra-nasal impressions are taken separately, then the recording is detailed, but the splinting and connection with extra-nasal impressions becomes unpredictable
Solution Approach 1:
The intra-nasal cones and extra-nasal mesh splints are merged into a single integrated assembly mounted on the horizontal bar. This ensures that both intra-nasal defect areas and extra-nasal anatomical features are recorded simultaneously in correct spatial relationship, eliminating unpredictable splinting by pre-establishing the connection framework before impression taking.
Solution Approach 2:
The horizontal bar acts as an intermediary structure that holds both intra-nasal cones and extra-nasal mesh splints in fixed spatial relationships. This mediator ensures accurate alignment and connection between impressions from different nasal regions, making the splinting process predictable and reliable.
3Adaptability or versatility
If adjustable horizontal bar is used, then anatomical variations are accommodated, but device assembly complexity increases
Solution Approach 1:
The horizontal bar incorporates adjustable features that allow dynamic repositioning and reconfiguration to match different nasal anatomies. This dynamic capability enables the device to adapt to various patient-specific geometries while maintaining a relatively simple overall structure through standardized adjustable components.
Data Source
AI summary
A nasal impression assembly for use in prosthodontics and otolaryngology, wherein the assembly includes detachable components specifically designed for recording precise nasal impressions. The detachable components may include plurality of nasal cones, a pair of injection syringes, and an extra nasal mesh splint, assembled on a horizontal bar. Further a method is provided for measuring/imprinting the impression, by using the assembly, wherein an impression material is brought in contact with extra-nasal and/or intra-nasal structure to imprint its size and/or shape.