Stretcher Transport Frame Automatic Loading Control
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Solution Overview
Problem
Current stretcher transport frames require skilled operators for loading onto vehicles, risking incorrect patient positioning during transport due to manual folding and adjustment processes.
Innovation Solution
A stretcher transport frame equipped with a control module, four-bar linkage mechanisms, and electromechanical actuators that automatically adjust and position the stretcher on an external surface, such as an ambulance, using sensors and load cells to ensure precise alignment and secure loading without operator expertise.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual folding and adjustment of movement means is used during loading, then the frame can be operated with simpler mechanisms, but skilled operators are required and patient positioning may be incorrect
Solution Approach 1:
The system performs loading operations automatically without requiring skilled operators. The control module autonomously coordinates the folding of movement means and positioning of the stretcher, making the system self-sufficient and eliminating dependence on operator expertise while ensuring consistent, accurate patient positioning.
Solution Approach 2:
Manual mechanical operations are replaced with an electromechanical control system. The control module electronically coordinates the mechanical folding and positioning mechanisms, substituting human skill-based operations with automated electronic control to improve both ease of operation and positioning reliability.
2Ease of operation
If assisted loading devices with electromechanical systems are used, then operator skill requirements are reduced, but the system still relies on operator care during the fundamental operation
Solution Approach 1:
The control module autonomously manages the entire loading sequence without requiring operator intervention or decision-making during the critical positioning phase. The system monitors and executes all movements automatically, reducing device complexity from the operator's perspective while maintaining full electromechanical assistance for the loading operation.
3Reliability
If automated control systems are implemented, then patient positioning accuracy is improved, but the device complexity increases
Solution Approach 1:
The control module serves multiple functions: it coordinates the folding of movement means, monitors the positioning of the stretcher, ensures accurate patient alignment, and manages the interaction between mechanical components. This multi-functionality consolidates what would otherwise require separate systems into a single integrated unit, improving positioning reliability without proportionally increasing overall device 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
Ensures accurate and automatic positioning of the stretcher during loading and transport, eliminating the need for skilled operators and minimizing the risk of patient misalignment, thereby enhancing safety and ease of use.
Implementation Method 1
these supporting means (5) comprise a first four-bar linkage mechanism (6) mounted on the movement module (2) and a second four-bar linkage mechanism (7) interposed between the first four-bar linkage mechanism (6) and a supporting platform (8) for a stretcher
Implementation Method 2
The control module (C) is operatively connected to load cells to detect a condition of resting of the loading portion (P) on the external supporting surface (1000)
Data Source
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AI summary
A frame (1) for transporting a stretcher comprising at least one movement module (2) equipped with wheels (3) and configured for moving on a surface; a supporting platform (8) configured for receiving in coupling a table of a stretcher (B); supporting means (5) interposed between the movement module (2) and the supporting platform (8). These supporting means (5) comprise motor-driven articulated means configured for adjusting the height of the stretcher with respect to the surface. A control module is operatively connected to detection means configured for detecting the height of a loading portion (P) of the supporting platform (8) with respect to an external supporting surface. This control module is operatively connected to the supporting means (5) to automatically actuate them in such a way as to position the loading portion (P) of the supporting platform (8) at a predetermined height with respect to the external supporting surface in such a way that the loading portion (P) is parallel to the external supporting surface and rests on the external supporting surface in a first step of loading the stretcher (B) on the external supporting surface.