Gurney Mobilization Device for Hostile Terrain

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Solution Overview

Problem

Conventional medical patient conveying equipment, such as gurneys, struggles to traverse hostile terrain like uneven or pitched surfaces, brush, snow, and sand, due to its inadequate design, which can compromise the timeliness of patient treatment.

Innovation Solution

A mobilization device is attached to the conveying equipment, featuring a base with an axle and wheel assemblies of larger diameter and width, along with a coupling receiver to enhance mobility and stability, allowing the equipment to traverse challenging terrain more effectively.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If conventional small-diameter thin wheels are used on conveying equipment, then the equipment structure remains simple and compact, but the equipment cannot adequately traverse hostile terrain such as uneven surfaces, brush, snow, or sand

Engineering Contradiction:
Improveterrain traversal capabilityVSAvoidequipment structure
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The invention divides the conveying equipment into two functional systems: the original equipment with its simple frame and coupling mechanisms, and a separate mobile platform with large-diameter wheels. This segmentation allows the terrain traversal capability to be added without redesigning the entire equipment structure, resolving the contradiction between adaptability and device complexity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The mobile platform acts as an intermediary between the conveying equipment and the hostile terrain. Instead of modifying the original equipment to handle difficult terrain, the platform with its large wheels serves as a mediator that bridges the gap between the equipment's limited capability and the terrain's challenges.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Speed

If the wheel diameter is increased to improve ground clearance and traverse hostile terrain, then the mobility on difficult terrain improves, but the equipment becomes more complex and larger

Engineering Contradiction:
Improvemobility on difficult terrainVSAvoidequipment structure
Core Design Contradiction:
SpeedVSDevice complexity

Solution Approach 1:

The invention merges the conveying equipment with a mobile platform that has large-diameter wheels. By combining these two functional elements, the system achieves both improved mobility on difficult terrain and maintains structural organization through standardized coupling mechanisms, resolving the contradiction between speed and device complexity.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The mobile platform with large wheels serves multiple functions: it provides ground clearance for traversing hostile terrain, supports the conveying equipment, and enables movement across various surface types. This multi-functionality justifies the added structural complexity by delivering comprehensive mobility benefits.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Loss of time

If medical personnel use conventional conveying equipment on hostile terrain, then the equipment structure remains simple, but the timeliness of patient treatment may be compromised due to difficulty in movement

Engineering Contradiction:
Improvepatient treatment timelinessVSAvoidease of movement
Core Design Contradiction:
Loss of timeVSEase of operation

Solution Approach 1:

The invention transforms the static conveying equipment into a dynamic system by attaching a mobile platform with large wheels. This dynamic configuration allows the equipment to adapt to varying terrain conditions, significantly improving ease of movement and reducing the time required to transport patients through hostile environments.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The invention changes the critical parameter of wheel diameter from small to large, which fundamentally alters the equipment's interaction with the terrain. This parameter change enables the equipment to overcome obstacles and traverse hostile terrain efficiently, directly addressing both the timeliness and ease of operation requirements.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS8967656B2Mobilization device
Publication Date: 2015.03.03 ENHANCED MOBILIZATION SYST
  • US8967656B2 patent drawing
  • US8967656B2 patent drawing
  • US8967656B2 patent drawing

AI summary

A mobilization device adapted to be attached to a piece of conveying equipment such as a gurney. The device includes a base having a top and a bottom. The base supports an axle housing. An axle is disposed in the axle housing and extends therefrom. Wheel assemblies are disposed on the axle. The device includes a coupling receiver mounted on the top of the base. The coupling receiver includes a receiving element that can hold a support structure of the conveying equipment and hold the wheels of the conveying equipment off of the ground. The wheel assemblies of the device are used to move the conveying equipment and include tires having a relatively larger height and width to aid in increasing the mobility of the conveying equipment.