Dental Prosthesis Coupling Kit with Retention Ring
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional dental prosthesis coupling systems require multiple holes in the prosthesis for screw access, leading to aesthetic issues, potential bacterial accumulation, and increased complexity in disassembly and reassembly.
Innovation Solution
A dental kit that includes a tubular body with internal ducts and retention rings, allowing for secure coupling of the prosthesis to pins without the need for multiple screws, thereby reducing the number of holes required in the prosthesis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple fixing screws are used to ensure stable coupling, then the reliability of the prosthesis-pin connection is improved, but the number of holes in the prosthesis increases, leading to aesthetic issues and potential bacterial accumulation
Solution Approach 1:
The patent merges the functions of multiple fixing screws into a single fixing element. The containment component incorporates multiple containment cavities within a single structure, allowing one fixing screw to secure multiple pins simultaneously. This reduces the number of holes in the prosthesis from multiple (conventional) to just one (invention), eliminating aesthetic issues and bacterial accumulation points while maintaining reliable coupling through the integrated fixing mechanism
Solution Approach 2:
The single fixing screw serves multiple functions: it fixes multiple pins simultaneously, provides centralized access for assembly and disassembly, and maintains coupling stability. The containment component acts as both a structural support and a housing for multiple containment cavities, reducing the need for separate fixing mechanisms for each pin
2Ease of operation
If multiple holes are provided in the prosthesis for screw access, then the ease of operation for disassembly is improved, but the device complexity and aesthetic appearance deteriorate
Solution Approach 1:
Multiple access holes are merged into a single access hole. The containment component is designed with a single opening that provides access to the fixing screw, which in turn controls multiple containment cavities. This single hole approach simplifies the prosthesis structure, improves aesthetics, and maintains ease of operation as the single hole still allows full access to the fixing mechanism for assembly and disassembly
Solution Approach 2:
The invention employs a nested structure where containment cavities are nested within the containment component, and the fixing screw is nested within the single access hole. This nesting allows multiple functional elements to be accessed through a single opening, reducing the number of holes while maintaining operational accessibility
3Ease of manufacture
If conventional fixing screws are used in each containment component, then the ease of manufacture is improved, but the number of parts and assembly complexity increases
Solution Approach 1:
Multiple separate fixing screws are merged into a single fixing screw that secures multiple pins. The containment component is manufactured as a single integrated piece containing multiple cavities, rather than separate components for each pin. This reduces the total number of parts while maintaining ease of manufacture through standardized materials and processes
Solution Approach 2:
The single fixing screw is designed to perform the fixing function for multiple pins simultaneously, making it a universal fixing element. The containment component serves multiple functions: structural support, housing for containment cavities, and providing the single access opening. This multi-functionality reduces part count while maintaining manufacturing simplicity
Data Source
Figure 1~2
Figure 3~6
Figure 7~9
AI summary
A kit for dental applications, which comprises at least one substantially tubular body (2) provided with an internal duct (3) which is open to the outside at respective ends of the body (2); a first end defines a cavity (4) adapted to accommodate, in a coupling configuration, the terminal portion (5a) of a pin (5) which can be coupled, directly or indirectly, to a maxillary bone tissue (A). The kit further comprises at least: - a retention ring (6), which has a radial cut (6a) and can be accommodated in the cavity (4), which is shaped complementarily; the retention ring (6) is configured to allow the introduction of the terminal portion (5a) of the pin (5) into the cavity (4) and to hinder its accidental egress, - a release tool (7), comprising a shank having a first longitudinal segment (7a), which is terminal and can be inserted with play into the duct (3), and a second longitudinal segment (7b), which is threaded and can engage a female thread (3a) provided along the internal wall of the duct (3).