ENT Speculum With Separate Tool Entry to Reduce Cross-Contamination
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Solution Overview
Problem
Existing ENT devices for earwax removal face challenges such as cross-contamination, limited magnification, ergonomic issues, and restricted access due to the design of speculum mounting systems, which can lead to complications during earwax removal procedures.
Innovation Solution
A novel ENT speculum design with a tapered distal portion, intermediate portion, and proximal portion that allows for a tool entry aperture separate from the viewing passage, enabling ergonomic tool handling and reducing cross-contamination risks, while being compatible with otoscopes and electronic devices for enhanced visibility and magnification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a traditional speculum mounting system is used where the ENT micro-instrument passes through the proximal aperture, then the structure is simple, but cross-contamination occurs and ergonomic handling is poor
Solution Approach 1:
The speculum is divided into three functional segments: proximal portion for mounting, intermediate portion with tool entry aperture, and distal portion with viewing passage. This segmentation allows the ENT tool to enter through a separate aperture (intermediate portion) rather than passing through the viewing aperture (proximal portion), eliminating cross-contamination while improving ergonomic handling as the tool handle can be positioned away from the viewing path
Solution Approach 2:
The tool entry function is extracted from the proximal aperture and relocated to a separate tool entry aperture in the intermediate portion. This extraction allows the proximal aperture to be dedicated solely to viewing and mounting functions, while the tool enters through a different pathway, preventing contamination of the viewing path by the tool
2Reliability
If the ENT micro-instrument passes through the proximal aperture for tool access, then the structure is simple, but cross-contamination occurs
Solution Approach 1:
The speculum is divided into three functional segments: proximal portion for mounting, intermediate portion with tool entry aperture, and distal portion with viewing passage. This segmentation allows the ENT tool to enter through a separate aperture (intermediate portion) rather than passing through the viewing aperture (proximal portion), eliminating cross-contamination while improving ergonomic handling as the tool handle can be positioned away from the viewing path
Solution Approach 2:
The tool entry function is extracted from the proximal aperture and relocated to a separate tool entry aperture in the intermediate portion. This extraction allows the proximal aperture to be dedicated solely to viewing and mounting functions, while the tool enters through a different pathway, preventing contamination of the viewing path by the tool
3Adaptability or versatility
If hand-held operating otoscope is used for visualization, then the device is portable and low cost, but magnification level is low and working length is limited
Solution Approach 1:
The speculum is designed with universal compatibility to work with multiple visualization systems including hand-held operating otoscopes, operating microscopes, and head-worn microscopes. The standardized mounting interface allows the same speculum to be used across different platforms, providing adaptability while enabling the user to select the appropriate visualization system based on the required magnification level
4Measurement precision
If operating microscope is used for visualization, then high-level magnification and binocular vision are provided, but the device is expensive and not portable
Solution Approach 1:
The speculum is designed with universal compatibility to work with multiple visualization systems including hand-held operating otoscopes, operating microscopes, and head-worn microscopes. The standardized mounting interface allows the same speculum to be used across different platforms, providing adaptability while enabling the user to select the appropriate visualization system based on the required magnification level
Data Source
AI summary
The present invention relates to an ENT speculum comprising a tapered distal portion having a tool access bore therethrough, a proximal portion comprising a connector and having a proximal aperture therethrough, and an intermediate portion intermediate the distal portion and the proximal portion, the distal, intermediate and proximal portions being arranged axially along said longitudinal axis, wherein said proximal aperture and tool access bore are aligned such that they form a first viewing passage, and wherein said intermediate portion comprises a tool entry aperture through which an ENT tool can access the tool access bore without passing through said proximal aperture in the connector.