Powered Cot Rail Carriage for Low-Strain Ambulance Loading
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Solution Overview
Problem
Emergency cots are typically loaded manually into emergency vehicles, placing a significant strain on medical personnel due to the weight of the cot and the patient it supports.
Innovation Solution
A cot loading and unloading system featuring a fixed rail with a track that is mounted to the floor, a carriage with wheels that engage the track, and a power drive assembly to automate the movement of the carriage along the fixed rail, along with lift arms to support and maneuver the cot.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If manual loading of emergency cots is used, then device complexity is reduced, but physical strain on medical personnel increases
Solution Approach 1:
The patent replaces the manual mechanical lifting system with an automated mechanical system comprising a carriage with wheels that travel along a fixed rail, a power drive assembly for automated movement, and lift arms for supporting and positioning the cot. This substitution eliminates the need for medical personnel to manually lift heavy cots, thereby reducing physical strain while introducing a more complex but automated loading mechanism.
2Ease of operation
If automated power drive assembly is added, then ease of operation is improved, but device complexity increases
Solution Approach 1:
The power drive assembly enables the carriage to automatically travel along the fixed rail without requiring manual intervention. The system performs its own work of positioning the cot for loading, reducing the operational effort required from medical personnel while accepting increased structural complexity through the addition of motors, drive mechanisms, and control systems.
3Productivity
If fixed rail with track is installed, then productivity is improved, but device complexity increases
Solution Approach 1:
The loading system is divided into distinct functional components: a fixed rail providing the structural framework, a carriage with wheels for movement along the rail, a power drive assembly for automation, and lift arms for cot support. This segmentation allows each component to perform its specific function efficiently, thereby improving overall productivity while managing complexity through modular design.
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 system reduces the physical strain on medical personnel by automating the loading and unloading of cots, enhancing safety and efficiency in emergency vehicle operations.
Implementation Method 1
The teeth of the motor pinion engage teeth of the drive pinion such that rotation of the motor pinion causes rotation of the drive pinion. The teeth of the drive pinion engage teeth of the rack member such that rotation of the motor pinion causes the carriage to travel along the fixed rail on the track.
Implementation Method 2
a plurality of wheels for engaging a track defined by a fixed rail of the cot loading and unloading system
Data Source
AI summary
In one embodiment, a carriage of a cot loading and unloading system includes a plurality of wheels for engaging a track defined by a fixed rail of the cot loading and unloading system, a power drive assembly operable to drive the carriage to travel along the track of the fixed rail, and a pair of lift arms for supporting a cot.