Medical Display Hanger Rotating Ring Structure for Collision Avoidance
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Solution Overview
Problem
In hybrid operating rooms, medical displays often need to be moved and lifted, posing a risk of accidental collisions with people and objects, which can cause damage and safety hazards.
Innovation Solution
A horizontal protective device for a medical display hanger is designed, comprising an upper ring, a middle ring, a lower ring, upper rotating shafts, and lower rotating shafts, which allow the medical display hanger to tilt and avoid collisions in any horizontal direction while maintaining stability and balance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the medical display hanger uses a rigid structure, then the structural strength is improved, but the safety hazard increases due to rigid collisions with people and objects
Solution Approach 1:
The patent applies the dynamics principle by replacing the rigid fixed connection with a dynamic rotating connection system. The display hanger is connected to the pendant arm through rotating shafts that allow the hanger to rotate and tilt when subjected to external forces, transforming the rigid structure into a dynamic one that can adapt to collisions and avoid rigid impacts with people and objects.
Solution Approach 2:
The patent changes the connection parameter from fixed to rotating by introducing rotating shafts with specific clearance fits. The shaft-hole clearance fit parameters enable the hanger to rotate freely under collision forces while maintaining normal positioning during operation, thus changing the mechanical parameter of the connection to resolve the contradiction between strength and collision hazard.
2Object-affected harmful factors
If the medical display hanger is made movable to avoid collisions, then the safety is improved, but the stability during operation deteriorates
Solution Approach 1:
The rotating connection mechanism allows the hanger to dynamically respond to collisions by rotating away from impact forces, improving safety. During normal operation, the weight of the display and friction in the rotating shafts maintain the hanger in a stable positioned state, thus achieving both mobility for safety and stability for operation.
Solution Approach 2:
The patent utilizes the weight of the medical display as a counterbalancing force. The display's weight creates a stabilizing moment that keeps the hanger in position during normal operation, while allowing rotation when external collision forces exceed this stabilizing moment, thus resolving the contradiction between stability and collision avoidance.
3Object-affected harmful factors
If multiple rotating shafts are added to enable rotation in multiple directions, then the collision avoidance capability is improved, but the device complexity increases
Solution Approach 1:
The patent segments the rotation capability into two independent rotating shafts with perpendicular axes. One shaft enables rotation in one horizontal direction, the other shaft enables rotation in the perpendicular horizontal direction. This segmentation allows multi-directional collision avoidance while keeping each individual shaft simple in structure.
Solution Approach 2:
The rotating connection system serves multiple functions: it enables collision avoidance in multiple directions, maintains operational stability through friction and weight, and allows easy installation and adjustment. The same rotating shaft structure provides both the protective function and the positioning function, demonstrating multi-functionality that reduces overall system complexity.
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 device effectively prevents rigid collisions by allowing the medical display hanger to tilt and absorb impacts, ensuring the display returns to its normal state after the collision, thus enhancing safety and stability during operations.
Implementation Method 1
the other end of the upper rotating shaft passes through one of the holes of the middle ring to form a shaft-hole clearance fit; one end of the lower rotating shaft is fixedly connected to the lower ring, and the other end of the lower rotating shaft passes through a further one of the holes of the middle ring to form a shaft-hole clearance fit
Data Source
AI summary
A horizontal protective device for a medical display hanger comprises an upper ring, a middle ring, a lower ring, an upper rotating shaft and a lower rotating shaft. The medical display hanger can be subjected to tilt avoidance in the event of an accidental collision in any horizontal direction.