Multispectral Surgical Lighting With Cycled UV Pathogen Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current medical lighting systems do not effectively utilize multiple wavelengths and bandwidths of pathogen-killing ultraviolet and visible light during surgical and dental procedures, leading to surgical site infections and health risks from overexposure.
Innovation Solution
A programmable lighting system integrating multiple electromagnetic radiation sources, including ultraviolet and visible light, with controlled energy levels and timed doses to safely kill pathogens during procedures, using fused silica lenses and computer programming to ensure safe human exposure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If ultraviolet light is used for bactericidal controls, then pathogen killing effectiveness is improved, but health risks from overexposure increase
Solution Approach 1:
The patent implements periodic action by cycling the ultraviolet light sources between on and off states during surgical procedures. The control system activates UV lights during specific time intervals when pathogen killing is needed, then deactivates them during other intervals, preventing continuous overexposure while maintaining effective sterilization at the surgical site.
Solution Approach 2:
The patent applies parameter changes by adjusting the intensity, wavelength, and exposure duration of ultraviolet light based on real-time monitoring. The control system modifies these parameters dynamically to achieve effective pathogen killing while staying within safe exposure limits for human tissue and eyes.
2Reliability
If multiple wavelengths of light are integrated into surgical lighting, then pathogen killing capability is improved, but device complexity increases
Solution Approach 1:
The patent merges multiple light sources including ultraviolet LEDs, visible light LEDs, and fluorescent lamps into a single integrated surgical lighting system. These different wavelength light sources are combined in one fixture with shared mounting structures, power supply, and control electronics, allowing the system to provide both illumination and pathogen killing functions simultaneously.
Solution Approach 2:
The surgical lighting system is designed with multi-functionality, where the same lighting apparatus provides both surgical illumination and bactericidal/sterilization functions. The control system enables the lights to serve different purposes at different times, making the device universally applicable for both illumination and pathogen control without requiring separate equipment.
3Object-affected harmful factors
If timed or cycled radiation is used to manage energy levels, then safety from overexposure is improved, but treatment duration is extended
Solution Approach 1:
The control system uses periodic cycling of ultraviolet light sources to deliver treatment doses in controlled time intervals. By alternating between activation and deactivation periods, the system achieves effective pathogen killing while limiting total exposure time to safe levels, preventing both overexposure and excessive treatment duration.
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
Reduces surgical site infections by effectively killing pathogens while minimizing health risks, promoting healing with vitamin D synthesis, and providing safe illumination for medical staff.
Implementation Method 1
Certain wavelengths in both ultraviolet and visible light have germicidal and bactericidal benefits for medical applications
Implementation Method 2
the patient's skin will synthesize vitamin D and D3 to further promote biologic healing at the surgical site
Implementation Method 3
using fused silica lenses and computer programming to ensure safe human exposure
Implementation Method 4
The light system can include a first light source configured to radiate ultraviolet light... A second light source configured to radiate a first visible light... A third light source configured to radiate visible light
Data Source
AI summary
A surgical site infection management lighting system that is effective and safe for human use to reduce or eliminate surgical site infections. The system provides multiple focused electromagnetic radiation frequencies at minimal energy levels for surgical and medical procedures that kills pathogens with electromagnetic radiation sources. The system includes an aiming laser, a distance sensor, a camera for providing images of the surgical site, and a motion sensor for providing control parameters. Fused silica lenses are utilized to focus the visible light for high illumination and selected electromagnetic radiation frequencies at minimal energy levels that are lethal to pathogens. The lighting system can be associated with an articulable arm, a mobile base stand, a handheld unit or a head-mounted unit.