Fixed-Rail Cot Carriage Pairing for Low-Strain Ambulance Loading
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Emergency cots are typically manually loaded into emergency vehicles, which can strain 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 mounted to the vehicle floor, a carriage that travels along the rail, and a master controller that wirelessly communicates with the cot to automate the loading and unloading process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual loading of emergency cots is used, then medical personnel have direct control over the loading process, but the weight of the cot and patient causes large strain on medical personnel
Solution Approach 1:
The patent replaces the manual mechanical lifting system with an automated mechanical system. A carriage equipped with load arms and a winch mechanism automatically lifts and loads the cot, eliminating the need for medical personnel to manually lift heavy weights. The system uses a motor-driven winch to provide the lifting force, substituting human mechanical effort with an automated mechanical system.
Solution Approach 2:
The patent introduces a carriage as an intermediary device between the medical personnel and the cot. The carriage acts as a mechanical mediator that receives the cot from personnel and transports it into the vehicle using automated load arms, thereby preventing direct physical contact between personnel and the heavy load during the critical lifting phase.
2Ease of operation
If automated cot loading systems are implemented, then the strain on medical personnel is reduced, but the device complexity increases due to additional mechanical components
Solution Approach 1:
The carriage is designed as a multi-functional device that performs multiple operations: it travels along the rail to position itself, extends load arms to grasp the cot, lifts the cot using the winch mechanism, and transports it into the vehicle. By consolidating these functions into a single integrated carriage unit, the system reduces overall complexity compared to having separate devices for each function.
Solution Approach 2:
The loading system is segmented into distinct functional modules: a fixed rail system for positioning, a carriage with travel mechanism, load arms for grasping, and a winch for lifting. This modular segmentation allows each component to be optimized independently and simplifies maintenance and operation, reducing the perceived complexity despite the automated functionality.
3Productivity
If wireless communication pairing between master controller and cot is implemented, then the loading process is automated and efficiency is enhanced, but the measurement precision of signal strength may be insufficient in noisy electromagnetic environments
Solution Approach 1:
The system implements a feedback mechanism where the master controller continuously monitors the signal strength from the cot's wireless chip during the pairing process. The controller adjusts the pairing threshold dynamically based on the measured signal strength, ensuring reliable communication even in varying electromagnetic environments. This feedback loop allows the system to adapt to environmental conditions and maintain measurement precision.
Solution Approach 2:
The wireless pairing is performed as a preliminary action before the actual loading process begins. The master controller and cot establish communication and verify signal strength in advance, ensuring that the pairing is confirmed before the automated loading sequence starts. This preliminary verification prevents errors during the critical loading phase and ensures reliable automation.
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 strain on medical personnel by mechanically lifting and loading the cot and patient into the vehicle, enhancing safety and efficiency.
Implementation Method 1
The master wireless chip is operable to transmit a broadcast address to the cot, and the cot wireless chip is operable to receive the broadcast address and transmit a cot address signal. The carriage wireless chip is operable to receive the cot address signal and transmit a strength signal based on the cot address signal.
Data Source
AI summary
In one embodiment, a system includes a cot loading and unloading system having a fixed rail including a track, wherein the fixed rail is operable to be fixed to a floor, a carriage having a carriage wireless chip, wherein the carriage is coupled to the track and operable to travel along the fixed rail on the track, and a master controller having a master wireless chip. The system further includes a cot having a cot wireless chip. The master wireless chip is operable to transmit a broadcast address to the cot, and the cot wireless chip is operable to receive the broadcast address and transmit a cot address signal. The carriage wireless chip is operable to receive the cot address signal and transmit a strength signal based on the cot address signal. The master controller receives the strength signal from the carriage wireless chip.