Arthroscopic Light Source Cooling via Remote Fan and Fin Heatsink
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Solution Overview
Problem
High-powered light emitters in arthroscopic surgical procedures generate excessive heat, posing discomfort and risk to patients and surgeons, and existing fiber optic light guides suffer from wear, breakage, and deterioration due to repeated cleaning and sterilization, leading to costly replacements.
Innovation Solution
A surgical light source system with a radially finned heatsink and a remote fan and power source configuration that directs airflow through cooling vents to dissipate heat away from the light source, eliminating the need for optical fiber guides and allowing for adjustable illuminance and high luminosity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If high-powered light emitters are used to provide sufficient illuminance at the surgical site, then illumination intensity is improved, but temperature increases causing heat-related risks to patient and surgeon
Solution Approach 1:
The system separates the light source from the arthroscope by using a fiber optic light guide to transmit light remotely. This segmentation allows the high-powered light emitter to be positioned away from the surgical site, providing sufficient illumination intensity at the target while preventing excessive temperature generation at the patient and surgeon locations.
Solution Approach 2:
A fiber optic light guide acts as an intermediary medium to transmit light energy from the remote light source to the surgical site. This intermediary enables the delivery of high illuminance without direct contact between the high-powered emitter and the surgical field, thereby avoiding heat-related risks to the patient and surgeon.
2Illumination intensity
If fiber optic light guides are used to transmit light, then illumination delivery is improved, but reliability deteriorates due to wear, breakage, and deterioration over multiple cleaning and sterilization cycles
Solution Approach 1:
The system employs a disposable light source assembly that can be dynamically replaced after a single use, eliminating the need to subject fiber optic light guides to repeated cleaning and sterilization cycles. This dynamic replacement strategy maintains reliability by ensuring the light transmission path is always in pristine condition without accumulated wear or deterioration.
Solution Approach 2:
The invention utilizes a disposable light source assembly that is discarded after one use, eliminating the need for repeated sterilization and cleaning of fiber optic components. This disposable approach ensures consistent performance and reliability without the degradation that occurs with multiple cleaning and sterilization cycles, while the low cost of the disposable unit makes the approach economically viable.
3Ease of operation
If a remote power source configuration is used, then ease of operation is improved by eliminating mechanical challenges at the surgical site, but device complexity increases
Solution Approach 1:
The power source and light emitter are extracted from the arthroscope assembly and positioned remotely. This extraction eliminates mechanical challenges at the surgical site, such as limited space for components and interference with surgical manipulation, while the extracted components are connected via fiber optic light guide, maintaining functional simplicity despite the increased spatial separation.
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 system effectively cools high-powered light emitters, reducing heat-related risks and eliminating the need for frequent replacements of fiber optic guides, while maintaining high luminosity and reducing mechanical challenges at the surgical site.
Implementation Method 1
a radially finned heatsink and a remote fan and power source configuration that directs airflow through cooling vents to dissipate heat
Implementation Method 2
a radially finned heatsink and a remote fan and power source configuration that directs airflow through cooling vents to dissipate heat
Implementation Method 3
a remote fan and power source configuration that directs airflow through cooling vents to dissipate heat
Data Source
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AI summary
A surgical light source system for cooling high-powered arthroscopic light emitters. The surgical light source system includes a housing having a proximal end and a distal end with a tube connected to the proximal end. The system also includes a light source at the distal end of the housing which is connected to a remote power source. The system has a plurality of fins extending around the light source within the housing and a remote fan connected to the tube. The remote fan is adapted to draw air across the fins, forming a heatsink within the housing.