Sterile Headlamp With IR Sensor
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Solution Overview
Problem
Existing headlight systems for surgeons and medical practitioners are contaminated when the control unit is not sterilized, as manual contact is required to turn the light on or off during procedures.
Innovation Solution
A motion-activated headlamp system using an infrared sensor that allows the light to be turned on and off without physical contact, with the power supply and control unit remotely located and interconnected via an electrical cable, enabling hands-free operation through a light source and eyeglass or headband attachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual contact control is used to turn the light on or off, then the control unit can be simple and reliable, but the practitioner's hand may become contaminated during procedures
Solution Approach 1:
The patent replaces the mechanical contact-based control system with an optical sensing system using infrared sensors. The sensor detects hand movements or body parts within its detection range and automatically triggers the light to turn on or off, eliminating the need for physical contact with the control unit and maintaining sterile environment while providing automated control functionality
2Ease of operation
If an infrared sensor is added to enable hands-free operation, then the sterile environment is maintained, but the device complexity increases
Solution Approach 1:
The patent introduces an infrared sensor as an intermediary device that detects hand movements or body parts and translates them into control signals for the light. This intermediary component enables hands-free operation by acting as a mediator between the user's natural movements and the electronic control system, eliminating the need for direct physical contact while managing the complexity through modular sensor integration
3Adaptability or versatility
If the activation distance is fixed, then the control system is simple, but it cannot accommodate different user preferences and procedural requirements
Solution Approach 1:
The patent implements a variable activation distance feature that allows the detection range of the infrared sensor to be adjusted according to different user preferences and procedural requirements. This dynamic adjustment capability transforms the fixed control parameter into a flexible one, enabling the system to adapt to various working conditions while managing complexity through programmable control parameters
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
Ensures a sterile environment by eliminating manual contact during procedures, providing customizable activation distance and reliable ON/OFF control through infrared detection, suitable for surgical and dental applications.
Implementation Method 1
An infrared (IR) motion sensor is interconnected to the power supply and control unit, and electrical circuitry within the power supply and control unit is operative to turn the light source ON and OFF in response to the detection of a hand or other body part by the sensor
Data Source
AI summary
A headlight incorporates an infrared sensor enabling the light to be turned ON and OFF without physical contact. The system includes a light source and a mechanism for coupling the light source to eyeglass frames or to a headband. A power supply and control unit is disposed remotely from the light source and is interconnected to the light source through an electrical cable. An infrared (IR) motion sensor is interconnected to the power supply and control unit, and electrical circuitry within the power supply and control unit is operative to turn the light source ON and OFF is response to the detection of a hand or other body part by the sensor. In the preferred embodiment, the light source includes a light-emitting diode (LED), and the IR detector is user-adjustable to set the ON/OFF activation distance in accordance with user preferences.