Medical Display Hanger Vertical Collision Stop Mechanism
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Solution Overview
Problem
In hybrid operating rooms, medical display hangers with electric arms can accidentally collide with patients or surrounding equipment during operation, necessitating a mechanism to prevent such collisions in a substantially vertical direction.
Innovation Solution
A vertical protective device for medical display hangers, comprising a contact piece, microswitch, rotating shaft, and vertical protective plate, which triggers an emergency stop or immediate rise of the medical display hanger upon collision, preventing accidents.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a vertical protective device is added to enable emergency stop or avoidance, then safety is improved, but device complexity increases
Solution Approach 1:
The protective device is segmented into independent functional components: a protective plate for collision detection, a rotating shaft for signal transmission, and a microswitch for control activation. This segmentation allows each component to perform its specific function efficiently while maintaining overall system reliability without excessive complexity.
Solution Approach 2:
The rotating shaft acts as an intermediary mechanism that translates the collision force on the protective plate into rotational motion that triggers the microswitch. This intermediary component enables safe collision detection while isolating the control system from direct mechanical impact, thereby improving safety without proportionally increasing complexity.
2Adaptability or versatility
If the protective plate is designed to rotate upwardly upon collision, then avoidance capability is improved, but control precision requirements increase
Solution Approach 1:
The protective plate is designed with dynamic rotation capability around a shaft, allowing it to move from a horizontal resting position to an upward tilted position upon collision. This dynamic design enables the system to adapt to collision forces and trigger avoidance responses without requiring extremely precise manufacturing tolerances, as the rotation mechanism naturally amplifies small collision forces into significant angular displacements.
3Reliability
If limiting blocks and posts are added to control rotation angle, then microswitch reliability is improved, but device complexity increases
Solution Approach 1:
Limiting blocks and posts are pre-positioned on the rotating shaft to define the maximum rotation angle of the protective plate before the microswitch is triggered. This preliminary mechanical constraint ensures that the protective plate cannot rotate beyond a safe angle that would damage the microswitch, thereby improving microswitch reliability without requiring complex electronic protection circuits or additional active control mechanisms.
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
Effectively prevents accidental collisions by enabling the medical display hanger to emergency stop or avoid collisions in a substantially vertical direction, ensuring safety in operating rooms.
Implementation Method 1
when a collision of the vertical protective plate happens, the rotating shaft drives the contact piece to rotate
Implementation Method 2
when no collision of the vertical protective plate happens, the limiting block abuts against the internal limiting post due to the gravity of the vertical protective plate
Data Source
AI summary
A vertical protective device for a medical display hanger comprises a contact piece, a microswitch, a rotating shaft and a vertical protective plate, wherein the contact piece is connected to one end of the rotating shaft, the vertical protective plate is connected to the other end of the rotating shaft, and the microswitch is arranged on a microswitch support; and when a collision of the vertical protective plate happens, the rotating shaft drives the contact piece to rotate, and the contact piece triggers the microswitch, so as to control the medical display hanger to stop moving or immediately rise. When an accidental collision of the medical display hanger happens in a substantially vertical direction, the medical display hanger can effectively come to an emergency stop.