LED Instrument Head Circuit for Multi-Handle Power Compatibility
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing physical assessment devices, such as otoscopes and ophthalmoscopes, lack flexibility in power compatibility and illumination control, and do not efficiently integrate with modern smart devices for enhanced diagnostic capabilities.
Innovation Solution
The device incorporates an instrument head with an illumination assembly powered by LEDs, featuring a drive circuit that adjusts illumination levels based on varying handle power profiles and includes a smart device adapter for optical alignment, allowing attachment to multiple handles and enabling integration with smart devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If an incandescent lamp is used as the light source, then the device can provide sufficient illumination, but the device lacks flexibility in power compatibility and cannot efficiently integrate with modern smart devices
Solution Approach 1:
The patent changes the light source from incandescent to LED, which fundamentally alters the energy consumption parameters. LEDs consume significantly less power while providing equivalent or superior illumination, enabling compatibility with battery-powered smart devices and solving the contradiction between power flexibility and energy efficiency
Solution Approach 2:
The patent replaces the traditional mechanical/incandescent lighting system with an electronic LED-based system that can be controlled through electronic circuits. This substitution enables integration with smart devices and provides multiple power profile options, resolving the adaptability versus energy efficiency contradiction
2Adaptability or versatility
If a single power profile is used in the instrument handle, then the power supply is simple, but the device lacks flexibility when used with different instrument handles
Solution Approach 1:
The patent implements a feedback mechanism where the instrument head detects the power profile of the attached handle and automatically adjusts its operation accordingly. The controller receives feedback about the connected handle's capabilities and modifies illumination and operational parameters to match, enabling multi-handle compatibility without requiring complex user configuration
Solution Approach 2:
The system performs self-configuration by automatically detecting the attached handle's power profile and adjusting its behavior without user intervention. This self-service approach enables the instrument head to work with multiple different handles while keeping the user interface simple, resolving the contradiction between adaptability and device complexity
3Ease of operation
If the entrance pupil is positioned close to the optical elements, then the device structure is compact, but accessories block the field of view during examination
Solution Approach 1:
The patent repositions the entrance pupil along the optical axis to a location that is distal to the distalmost optical element. This dimensional repositioning creates sufficient space between the optical elements and the speculum tip, ensuring that accessories do not block the field of view while maintaining a reasonably compact overall structure
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
The solution provides consistent illumination across different power profiles, allows for interchangeable accessories, and facilitates the integration of smart devices without modification, enhancing diagnostic capabilities and usability.
Implementation Method 1
An illumination assembly includes an LED and a drive circuit
Data Source
AI summary
An instrument head is provided for attachment to a plurality of instrument handles having different power profiles. The instrument head contains an illumination assembly including at least one LED as well as a drive circuit for detecting a power profile of an attached instrument handle and converting variable voltages received from the attached instrument handle to a constant current for powering the at least one LED based on the power profile. Accordingly, the instrument head enables use with a plurality of instrument handles, including those originally configured for use only with incandescent light sources.