Ward Trolley Cable Compartment Layout for Hygienic Access

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Solution Overview

Problem

Existing ward trolleys in healthcare facilities face challenges with simplified handling, hygiene, and cleaning requirements, particularly due to exposed cables and potential cable damage.

Innovation Solution

The ward trolley features an encapsulated energy management system with a pivotable monitor and concealed cable routing, where the cable space is separated from the storage space by a partition, and access is possible only from the rear, ensuring secure and hygienic cable management.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If cables are exposed and accessible for EDP system connections, then ease of operation is improved, but reliability deteriorates due to cable damage and loosening

Engineering Contradiction:
Improveaccess to cablesVSAvoidcable integrity
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The cable routing is nested within the tube structure that carries the monitor. The tube serves as a protective conduit that houses the cables internally, preventing them from being exposed to external damage while maintaining organized routing from the computer to the monitor connections.

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The cable management function is extracted from the general storage space and dedicated to a specific cable space located behind the storage space. This separation ensures cables are confined to a protected area with controlled access, preventing accidental damage while maintaining accessibility when needed.

Inventive Principle:
Principle #2Taking out (Extraction)

2Ease of operation

If EDP system components are accessible from the front, then ease of operation is improved, but hygiene deteriorates due to contamination risks

Engineering Contradiction:
Improveaccess to EDP systemVSAvoidcontamination
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The cabinet part is segmented into distinct functional zones: a storage space for utensils in the front, a cable space behind it, and a separate computer housing area. This segmentation allows the EDP system components to be accessed through the storage compartment rather than direct front access, reducing contamination exposure while maintaining operational accessibility.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The storage compartment acts as an intermediary access point to the cable space and EDP system components. Instead of direct front access to cables and computer equipment, users access these components through the storage compartment door, which serves as a buffer zone that reduces direct exposure to potential contaminants.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Reliability

If cable space is separated from storage space, then reliability is improved by protecting cables, but device complexity increases

Engineering Contradiction:
Improvecable protectionVSAvoidcabinet structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The tube that carries the monitor serves multiple functions: it supports the monitor at the appropriate height and angle, provides a protective conduit for cable routing, and structurally connects the monitor to the cabinet framework. This multi-functionality reduces the need for separate cable management components, thereby limiting complexity increase.

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

Solution Approach 2:

The cable routing function is merged with the monitor support structure. The tube that would otherwise be solely a mechanical support element also serves as the cable conduit, combining structural and electrical management functions into a single integrated component.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentEP2666452B1Trolley, in particular ward trolley and care trolley
Publication Date: 2016.11.30 OPTIPLAN FUR OPTISCHE PLANUNGSGERATE MBH
  • EP2666452B1 patent drawingFigure 1
  • EP2666452B1 patent drawingFigure 2
  • EP2666452B1 patent drawingFigure 3

AI summary

The station wagon (1) has mobile trained cabinet (2) comprising front accessible storage space (19) for receiving utensils. A cable space is provided behind storage space in feed direction by an intermediate wall. The storage space is provided with storage compartment (12) through which cable space is accessed.