Endoscope Light-Source Driver Automatic Power Cut
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Solution Overview
Problem
Conventional light-source units for portable endoscopes continue to waste battery energy if the main switch is left on after detachment from the endoscope body, leading to battery depletion, especially when the endoscope is stored.
Innovation Solution
A light-source driver with a first switch that toggles between On and Off states based on attachment and detachment, a pilot lamp for indicating energized illumination, a warning lamp for low battery voltage, and a light-switching block that ensures the pilot lamp is turned off and the second switch is set to Off when the unit is detached, preventing unnecessary energy consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the main switch is left on after detachment, then the light source continues emitting light, but battery energy is wasted
Solution Approach 1:
The system uses a feedback mechanism where the first switch detects the attachment state of the light-source unit to the endoscope body and automatically controls the second switch and light-switching block to turn off the light source when detached, preventing energy waste without requiring manual intervention
Solution Approach 2:
The light-source driver automatically manages its own power state based on the attachment status, with the first switch and light-switching block working together to ensure the light source turns off when the unit is detached, eliminating the need for user awareness or action
2Reliability
If the main switch is left on when storing the portable endoscope, then the light source remains energized, but the battery will be depleted
Solution Approach 1:
The system takes preliminary action by automatically turning off the light source through the light-switching block as soon as detachment is detected, before the user stores the endoscope, thereby preventing battery depletion during storage without requiring user awareness
3Adaptability or versatility
If the light-source unit is made detachable, then portability is improved, but the risk of leaving the light source on increases
Solution Approach 1:
The first switch provides continuous feedback on the attachment state, and the light-switching block automatically responds by turning off the light source when detached, enabling portability while preventing energy waste through automatic control
Solution Approach 2:
The light-switching block acts as an intermediary between the first switch's attachment detection and the final light source control, automatically mediating the power state change to prevent energy waste when the unit is detached
Data Source
AI summary
A light-source driver for a light-source, detachable from an endoscope body includes a first switch, a pilot lamp, a warning lamp, a second switch, and a light switcher. The first switch switches between the On-state and Off-state in connection with the attachment and detachment of the light-source to the endoscope body. The pilot lamp indicates that the illumination light source is energized. The warning lamp indicates that the output voltage of a battery has dropped below a predetermined value. The second switch switches the warning lamp between the On-state and Off-state in connection with the On-state and Off-state of the first switch. The light switcher switches the pilot lamp to the Off-state and enables the second switch when the second switch is set to the On-state and the output voltage has declined to or below the predetermined value.