Portable Stretcher with Foldable Support and Telescopic Bars
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Solution Overview
Problem
Conventional stretchers and evacuation devices often lack flexibility in supporting patients in various positions and environmental conditions, particularly in situations requiring both carrying comfort and ease of navigation through narrow spaces or uneven terrain.
Innovation Solution
A portable stretcher with a flexible support member, adjustable carrying straps, and multiple handle sets that can be configured for sitting or laying positions, featuring foldable sections and secure fastening mechanisms, allowing for optimal load balance and easy handling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the stretcher uses a rigid structure to support patients, then patient stability is improved, but portability and ease of carrying deteriorate
Solution Approach 1:
The stretcher is divided into multiple telescopic bar segments that can extend to provide rigid support when needed and collapse to a compact size for portability. The support member is also segmented into foldable sections that can be configured in different lengths depending on patient position requirements.
Solution Approach 2:
The stretcher employs dynamic telescopic bars that can adjust their length and rigidity based on operational needs. The bars extend to provide stable support during patient evacuation and collapse to minimize size during transport and storage, transforming the structural properties dynamically.
2Adaptability or versatility
If the stretcher is designed for laying position only, then patient support comfort is improved, but adaptability to different rescue scenarios deteriorates
Solution Approach 1:
The support member can be dynamically reconfigured between different length states to accommodate sitting or laying positions. The telescopic bars and foldable sections work together to transform the stretcher geometry, allowing it to adapt to various patient positions without requiring multiple separate devices.
Solution Approach 2:
The same support member structure serves multiple functions by adjusting its configuration. It provides adequate support for both sitting and laying positions, and the same telescopic bars provide both extended support for laying patients and compact form for carrying during different rescue scenarios.
3Adaptability or versatility
If the stretcher uses fixed-length bars, then structural simplicity is improved, but adaptability to different patient sizes and positions deteriorates
Solution Approach 1:
The bars are segmented into multiple telescopic sections that can extend or retract to provide different lengths. This segmentation allows the same bar structure to accommodate various patient sizes and positions while maintaining a relatively simple overall design through standardized telescopic mechanisms.
Data Source
AI summary
A portable stretcher for carrying a subject that includes a support member for supporting a subject's body made of a flexible material; carrying straps connected to opposite sides of the support member at a back side thereof, for allowing manually carrying the stretcher; and at least two sets of handles each set comprising at least one handle, wherein each of the handles connects to the support member. The stretcher is configured for carrying the subject in a sitting posture by having at least two carriers wearing the carrying straps and also in a laying posture, in which the subject horizontally lays over the support member by having the carriers carry the laying subject by using the handles.