Elevated CPR Assist Device with Adjustable Straps
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Solution Overview
Problem
There is a need for solutions that facilitate the conduct of elevated CPR by assisting medical personnel in easily, rapidly, and precisely elevating a patient to the predefined positions required by the elevated CPR method.
Innovation Solution
An elevated CPR assist device is designed for attachment to a stretcher, featuring adjustable straps and indicator marks to guide the precise elevation of a patient's head and thorax during elevated CPR procedures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If manual elevation is used to raise the patient's head and thorax, then the device complexity is reduced, but the speed and precision of elevation are insufficient
Solution Approach 1:
The patent introduces an intermediary mechanical linkage system consisting of linkages, pivots, and guides that mediate between the operator's input force and the patient's body. This intermediary mechanism translates simple manual operations into precise, controlled elevation movements, achieving both speed and precision without requiring complex automated systems.
Solution Approach 2:
The patent replaces the purely manual mechanical system with an enhanced mechanical system that incorporates guided linkages, pivots, and constraints. This substitution transforms uncontrolled manual movement into a controlled mechanical process that achieves predefined elevation positions with precision while maintaining operational simplicity.
2Measurement precision
If precise elevation to predefined positions is achieved, then the measurement precision of patient positioning is improved, but the ease of operation is reduced
Solution Approach 1:
The mechanical linkage system is designed to be self-regulating, where the geometry of the linkages and pivots automatically ensures precise positioning without requiring complex controls. The system self-adjusts to maintain the correct elevation angles, making precise positioning as easy as manual operation while eliminating the need for sophisticated measurement and control systems.
Solution Approach 2:
The device incorporates pre-configured linkages and guides that are designed to achieve the predefined elevation positions automatically during operation. The mechanical structure is pre-engineered to facilitate precise positioning as a natural outcome of the elevation process, eliminating the need for complex real-time measurement and adjustment systems.
3Adaptability or versatility
If the device structure is simplified, then the ease of manufacture is improved, but the adaptability to different patient positions is reduced
Solution Approach 1:
The patent employs dynamic mechanical linkages that can adapt to different patient positions and elevation requirements through pure mechanical means. The pivots and linkages are designed to move and adjust automatically based on the desired position, providing versatility without requiring multiple fixed configurations or complex adjustable mechanisms, thereby maintaining ease of manufacture.
Solution Approach 2:
The mechanical linkage system is designed as a universal mechanism that can achieve multiple elevation positions and patient configurations through a single integrated structure. The same set of linkages, pivots, and guides serves multiple functions across different operational scenarios, eliminating the need for separate mechanisms for each position and simplifying manufacturing while maintaining high adaptability.
Data Source
AI summary
An elevated CPR assist device is provided which is suitable for attachment to a stretcher to elevate a patient as elevated CPR is carried out on the patient. The device includes a housing and upper and lower device straps extending from the device housing. The upper device strap may be configured for attachment to the upper portion of a stretcher mattress on, or a backrest of, a stretcher. The lower device strap may be configured for attachment to the stretcher frame of the stretcher. At least one of the upper device strap and the lower device strap may be selectively extendable from the device housing. Selected extended lengths of the extendable device strap correspond to respective patient support angles of the stretcher mattress. The elevated CPR device is lengthened between the stretcher frame and the stretcher mattress/backrest to various desired angles, during the performance of elevated CPR.